今天小编给大家分享一下springboot+mybatisplus+redis的demo怎么实现的相关知识点，内容详细，逻辑清晰，相信大部分人都还太了解这方面的知识，所以分享这篇文章给大家参考一下，希望大家阅读完这篇文章后有所收获，下面我们一起来了解一下吧。
1.pom.xml中倒入需要的jar包
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>org.example</groupId> <artifactId>springboot_redis_demo</artifactId> <version>1.0-SNAPSHOT</version> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.5.0</version> </parent> <dependencies> <!--web--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> <version>2.5.0</version> </dependency> <!--mysql--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>8.0.25</version> </dependency> <!--jdbc--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-jdbc</artifactId> <version>2.5.0</version> </dependency> <!--druid--> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.2.6</version> </dependency> <!--mybatis-plus--> <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus-boot-starter</artifactId> <version>3.4.3</version> </dependency> <!--generator--> <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus-generator</artifactId> <version>3.4.1</version> </dependency> <!--freemarker--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-freemarker</artifactId> <version>2.5.0</version> </dependency> <!--redis--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId> <version>2.5.0</version> </dependency> <!--lombok--> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>1.18.20</version> <scope>provided</scope> </dependency> <!--springboot-test--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <version>2.5.0</version> <scope>test</scope> </dependency> <!--junit--> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.13.2</version> <scope>test</scope> </dependency> <!--swagger2--> <dependency> <groupId>io.springfox</groupId> <artifactId>springfox-swagger2</artifactId> <version>3.0.0</version> </dependency> <!--swagger-ui--> <dependency> <groupId>io.springfox</groupId> <artifactId>springfox-swagger-ui</artifactId> <version>3.0.0</version> </dependency> </dependencies> </project>
2.application.yml配置信息
#端口 server: port: 1010 #配置数据源 spring: datasource: driver-class-name: com.mysql.cj.jdbc.Driver url: jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf-8&allowMultiQueries=true&serverTimezone=GMT%2B8&useSSL=false username: root password: 123456 type: com.alibaba.druid.pool.DruidDataSource #配置redis redis: host: 127.0.0.1 port: 6379 database: 0 password: 123456
3.启动类需要的注解
package com.zengjx.project;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cache.annotation.EnableCaching;
/**
* @author fastrabbit
* @date 2021/6/9 9:43
*/
@SpringBootApplication
@EnableCaching
@MapperScan("com.zengjx.project.*.mapper")
public class RedisApp {
public static void main(String[] args) {
SpringApplication.run(RedisApp.class, args);
}
}4.mybatisplus模板——baseQuery
package ${cfg.packagePath}.common;
import com.baomidou.mybatisplus.annotation.TableField;
import lombok.Data;
/**
* @author ${author}
* @date ${date}
*/
@Data
public class BaseQuery {
/**
* 当前页数 默认为1
*/
@TableField(exist=false)
private Integer page = 1;
/**
* 每页数据量 默认为10
*/
@TableField(exist=false)
private Integer rows =10;
}5.mybatisplus模板——controller
package ${package.Controller};
import ${cfg.packagePath}.common.Result;
import ${package.Entity}.${entity};
import ${package.Service}.${table.serviceName};
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
<#if restControllerStyle>
import org.springframework.web.bind.annotation.RestController;
<#else>
import org.springframework.stereotype.Controller;
</#if>
import java.util.List;
<#if superControllerClassPackage??>
import ${superControllerClassPackage};
</#if>
/**
* @author ${author}
* @date ${date}
*/
@Api(tags = {"${table.comment!}"})
<#if restControllerStyle>
@RestController
<#else>
@Controller
</#if>
@RequestMapping("<#if package.ModuleName?? && package.ModuleName != "">/${package.ModuleName}</#if>/<#if controllerMappingHyphenStyle??>${controllerMappingHyphen}<#else>${table.entityPath}</#if>")
<#if kotlin>
class ${table.controllerName}<#if superControllerClass??> : ${superControllerClass}()</#if>
<#else>
<#if superControllerClass??>
public class ${table.controllerName} extends ${superControllerClass} {
<#else>
public class ${table.controllerName} {
</#if>
private Logger logger = LoggerFactory.getLogger(getClass());
@Autowired
private ${table.serviceName} ${(table.serviceName?substring(1))?uncap_first};
/**
* @author fastrabbit
* @description 根据id查询单个数据
* @date ${date}
*/
@ApiOperation(value = "根据id查询单个数据")
@RequestMapping(value = "/getById")
public Result<${entity}> getById(@RequestBody ${entity} ${entity?uncap_first}){
return ${(table.serviceName?substring(1))?uncap_first}.getById(${entity?uncap_first});
}
/**
* @author fastrabbit
* @description 根据查询条件查询分页数据
* @date ${date}
*/
@ApiOperation(value = "根据查询条件查询分页数据")
@RequestMapping(value = "/list")
public Result<List<${entity}>> findListByPage(@RequestBody ${entity} ${entity?uncap_first}){
return ${(table.serviceName?substring(1))?uncap_first}.findListByPage(${entity?uncap_first});
}
/**
* @author fastrabbit
* @description 查询所有数据
* @date ${date}
*/
@ApiOperation(value = "查询所有数据")
@RequestMapping(value = "/getAll")
public Result<List<${entity}>> getAll(){
return ${(table.serviceName?substring(1))?uncap_first}.getAll();
}
/**
* @author fastrabbit
* @description 新增单个数据
* @date ${date}
*/
@ApiOperation(value = "新增单个数据")
@RequestMapping(value = "/insert", method = RequestMethod.POST)
public Result<Object> insert(@RequestBody ${entity} ${entity?uncap_first}){
return ${(table.serviceName?substring(1))?uncap_first}.insert(${entity?uncap_first});
}
/**
* @author fastrabbit
* @description 删除单个数据
* @date ${date}
*/
@ApiOperation(value = "删除单个数据")
@RequestMapping(value = "/delete")
public Result<Object> delete(@RequestBody ${entity} ${entity?uncap_first}){
return ${(table.serviceName?substring(1))?uncap_first}.delete(${entity?uncap_first});
}
/**
* @author fastrabbit
* @description 修改单个数据
* @date ${date}
*/
@ApiOperation(value = "修改单个数据")
@RequestMapping(value = "/update", method = RequestMethod.POST)
public Result<Object> update(@RequestBody ${entity} ${entity?uncap_first}){
return ${(table.serviceName?substring(1))?uncap_first}.update(${entity?uncap_first});
}
}
</#if>6.mybatisplus模板——entity
package ${package.Entity};
<#list table.importPackages as pkg>
import ${pkg};
</#list>
<#if swagger2>
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
</#if>
import ${cfg.packagePath}.common.BaseQuery;
<#if entityLombokModel>
import lombok.Data;
import lombok.EqualsAndHashCode;
<#if chainModel>
import lombok.experimental.Accessors;
</#if>
</#if>
/**
* @author ${author}
* @date ${date}
*/
<#if entityLombokModel>
@Data
<#if superEntityClass??>
@EqualsAndHashCode(callSuper = true)
<#else>
@EqualsAndHashCode(callSuper = false)
</#if>
<#if chainModel>
@Accessors(chain = true)
</#if>
</#if>
<#if table.convert>
@TableName("${table.name}")
</#if>
<#if swagger2>
@ApiModel(value="${entity}对象", description="${table.comment!}")
</#if>
<#if superEntityClass??>
public class ${entity} extends ${superEntityClass}<#if activeRecord><${entity}></#if> {
<#elseif activeRecord>
public class ${entity} extends Model<${entity}> {
<#else>
public class ${entity} extends BaseQuery implements Serializable {
</#if>
<#if entitySerialVersionUID>
private static final long serialVersionUID = 1L;
</#if>
<#-- ---------- BEGIN 字段循环遍历 ---------->
<#list table.fields as field>
<#if field.keyFlag>
<#assign keyPropertyName="${field.propertyName}"/>
</#if>
<#if field.comment!?length gt 0>
<#if swagger2>
@ApiModelProperty(value = "${field.comment}")
<#else>
/**
* ${field.comment}
*/
</#if>
</#if>
<#if field.keyFlag>
<#-- 主键 -->
<#if field.keyIdentityFlag>
@TableId(value = "${field.annotationColumnName}", type = IdType.AUTO)
<#elseif idType??>
@TableId(value = "${field.annotationColumnName}", type = IdType.${idType})
<#elseif field.convert>
@TableId("${field.annotationColumnName}")
</#if>
<#-- 普通字段 -->
<#elseif field.fill??>
<#-- ----- 存在字段填充设置 ----->
<#if field.convert>
@TableField(value = "${field.annotationColumnName}", fill = FieldFill.${field.fill})
<#else>
@TableField(fill = FieldFill.${field.fill})
</#if>
<#elseif field.convert>
@TableField("${field.annotationColumnName}")
</#if>
<#-- 乐观锁注解 -->
<#if (versionFieldName!"") == field.name>
@Version
</#if>
<#-- 逻辑删除注解 -->
<#if (logicDeleteFieldName!"") == field.name>
@TableLogic
</#if>
private ${field.propertyType} ${field.propertyName};
</#list>
<#------------ END 字段循环遍历 ---------->
<#if !entityLombokModel>
<#list table.fields as field>
<#if field.propertyType == "boolean">
<#assign getprefix="is"/>
<#else>
<#assign getprefix="get"/>
</#if>
public ${field.propertyType} ${getprefix}${field.capitalName}() {
return ${field.propertyName};
}
<#if chainModel>
public ${entity} set${field.capitalName}(${field.propertyType} ${field.propertyName}) {
<#else>
public void set${field.capitalName}(${field.propertyType} ${field.propertyName}) {
</#if>
this.${field.propertyName} = ${field.propertyName};
<#if chainModel>
return this;
</#if>
}
</#list>
</#if>
<#if entityColumnConstant>
<#list table.fields as field>
public static final String ${field.name?upper_case} = "${field.name}";
</#list>
</#if>
<#if activeRecord>
@Override
protected Serializable pkVal() {
<#if keyPropertyName??>
return this.${keyPropertyName};
<#else>
return null;
</#if>
}
</#if>
<#if !entityLombokModel>
@Override
public String toString() {
return "${entity}{" +
<#list table.fields as field>
<#if field_index==0>
"${field.propertyName}=" + ${field.propertyName} +
<#else>
", ${field.propertyName}=" + ${field.propertyName} +
</#if>
</#list>
"}";
}
</#if>
}7.mybatisplus模板——mapper
package ${package.Mapper};
import ${package.Entity}.${entity};
import ${superMapperClassPackage};
/**
* @author ${author}
* @date ${date}
*/
<#if kotlin>
interface ${table.mapperName} : ${superMapperClass}<${entity}>
<#else>
public interface ${table.mapperName} extends ${superMapperClass}<${entity}> {
}
</#if>8.mybatisplus模板——mybatisplusConfig
package ${cfg.packagePath}.globalconfig;
import com.baomidou.mybatisplus.annotation.DbType;
import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.transaction.annotation.EnableTransactionManagement;
/**
* @author ${author}
* @date ${date}
*/
@Configuration
@EnableTransactionManagement
public class MybatisPlusConfig {
/**
* @author fastrabbit
* @description 获取分页插件
* @date ${date}
*/
@Bean
public MybatisPlusInterceptor mybatisPlusInterceptor() {
MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.H2));
return interceptor;
}
}9.mybatisplus模板——result
package ${cfg.packagePath}.common;
import lombok.Data;
/**
* @author ${author}
* @date ${date}
*/
@Data
public class Result<T> {
/**
* 是否成功 默认为成功
*/
private Boolean success = true;
/**
* 状态码 默认为200
*/
private Integer code = 200;
/**
* 返回信息描述
*/
private String message;
/**
* 返回数据
*/
private T data;
/**
* 返回数据量
*/
private Integer total;
}10.mybatisplus模板——service
package ${package.Service};
import ${superServiceClassPackage};
import ${cfg.packagePath}.common.Result;
import ${package.Entity}.${entity};
import java.util.List;
/**
* @author ${author}
* @date ${date}
*/
<#if kotlin>
interface ${table.serviceName} : ${superServiceClass}<${entity}>
<#else>
public interface ${table.serviceName} extends ${superServiceClass}<${entity}> {
/**
* @author fastrabbit
* @description 根据id查询单个数据
* @date ${date}
*/
Result<${entity}> getById(${entity} ${entity?uncap_first});
/**
* @author fastrabbit
* @description 根据查询条件查询分页数据
* @date ${date}
*/
Result<List<${entity}>> findListByPage(${entity} ${entity?uncap_first});
/**
* @author fastrabbit
* @description 查询所有数据
* @date ${date}
*/
Result<List<${entity}>> getAll();
/**
* @author fastrabbit
* @description 新增单个数据
* @date ${date}
*/
Result<Object> insert(${entity} ${entity?uncap_first});
/**
* @author fastrabbit
* @description 修改单个数据
* @date ${date}
*/
Result<Object> update(${entity} ${entity?uncap_first});
/**
* @author fastrabbit
* @description 删除单个数据
* @date ${date}
*/
Result<Object> delete(${entity} ${entity?uncap_first});
}
</#if>11.mybatisplus模板——serviceImpl
package ${package.ServiceImpl};
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import ${cfg.packagePath}.common.Result;
import ${package.Entity}.${entity};
import ${package.Mapper}.${table.mapperName};
import ${package.Service}.${table.serviceName};
import ${superServiceImplClassPackage};
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import java.util.List;
/**
* @author ${author}
* @date ${date}
*/
@Service
@Transactional(rollbackFor=Exception.class)
<#if kotlin>
open class ${table.serviceImplName} : ${superServiceImplClass}<${table.mapperName}, ${entity}>(), ${table.serviceName} {
}
<#else>
public class ${table.serviceImplName} extends ${superServiceImplClass}<${table.mapperName}, ${entity}> implements ${table.serviceName} {
@Autowired
private ${table.mapperName} ${table.mapperName?uncap_first};
/**
* @author fastrabbit
* @description 根据id查询单个数据
* @date ${date}
*/
@Override
public Result<${entity}> getById(Food food) {
Result<${entity}> foodResult = new Result<>();
foodResult.setData(foodMapper.selectById(food.getId()));
return foodResult;
}
/**
* @author fastrabbit
* @description 根据查询条件查询分页数据
* @date ${date}
*/
@Override
public Result<List<${entity}>> findListByPage(Food food) {
Result<List<${entity}>> listResult = new Result<>();
Page<${entity}> foodPage = new Page<>(food.getPage(), food.getRows());
QueryWrapper<${entity}> foodQueryWrapper = new QueryWrapper<>();
List<${entity}> records = foodMapper.selectPage(foodPage, foodQueryWrapper).getRecords();
listResult.setData(records);
listResult.setTotal(records.size());
return listResult;
}
/**
* @author fastrabbit
* @description 查询所有数据
* @date ${date}
*/
@Override
public Result<List<${entity}>> getAll() {
Result<List<${entity}>> foodResult = new Result<>();
List<${entity}> foods = foodMapper.selectList(null);
foodResult.setData(foods);
foodResult.setTotal(foods.size());
return foodResult;
}
/**
* @author fastrabbit
* @description 新增单个数据
* @date ${date}
*/
@Override
public Result<Object> insert(Food food) {
Result<Object> objectResult = new Result<>();
foodMapper.insert(food);
return objectResult;
}
/**
* @author fastrabbit
* @description 修改单个数据
* @date ${date}
*/
@Override
public Result<Object> update(Food food) {
Result<Object> objectResult = new Result<>();
foodMapper.updateById(food);
return objectResult;
}
/**
* @author fastrabbit
* @description 删除单个数据
* @date ${date}
*/
@Override
public Result<Object> delete(Food food) {
Result<Object> objectResult = new Result<>();
foodMapper.deleteById(food.getId());
return objectResult;
}
}
</#if>12.mybatisplus模板代码生成器——CodeGenerator
package com.zengjx.project;
import com.baomidou.mybatisplus.core.exceptions.MybatisPlusException;
import com.baomidou.mybatisplus.core.toolkit.StringPool;
import com.baomidou.mybatisplus.core.toolkit.StringUtils;
import com.baomidou.mybatisplus.generator.AutoGenerator;
import com.baomidou.mybatisplus.generator.InjectionConfig;
import com.baomidou.mybatisplus.generator.config.*;
import com.baomidou.mybatisplus.generator.config.po.TableInfo;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;
import com.baomidou.mybatisplus.generator.engine.FreemarkerTemplateEngine;
import java.io.File;
import java.util.*;
/**
* @author fastrabbit
* @date 2021/5/25 9:28
*/
public class CodeGenerator {
/**
* <p>
* 读取控制台内容
* </p>
*/
public static String scanner(String tip) {
Scanner scanner = new Scanner(System.in);
StringBuilder help = new StringBuilder();
help.append("请输入" + tip + "：");
System.out.println(help.toString());
if (scanner.hasNext()) {
String ipt = scanner.next();
if (StringUtils.isNotBlank(ipt)) {
return ipt;
}
}
throw new MybatisPlusException("请输入正确的" + tip + "！");
}
public static void main(String[] args) {
// 代码生成器
AutoGenerator mpg = new AutoGenerator();
// 全局配置
GlobalConfig gc = new GlobalConfig();
// 获取到当前项目的根目录
String projectPath = System.getProperty("user.dir");
// 在指定的文件夹下生成文件的输出目录
gc.setOutputDir(projectPath + "/src/main/java");
// 设置类注释中的类的作者
gc.setAuthor("fastrabbit");
// 是否打开输出目录
gc.setOpen(false);
// 实体属性 Swagger2 注解
gc.setSwagger2(true);
// 开启activeRecord模式 开启后entity会继承Model类
gc.setActiveRecord(false);
// XML ResultMap: mapper.xml生成查询映射结果
gc.setBaseResultMap(true);
// 是否覆盖原来的文件
gc.setFileOverride(false);
mpg.setGlobalConfig(gc);
//======================================================================================================================
// 数据源配置
DataSourceConfig dsc = new DataSourceConfig();
dsc.setUrl("jdbc:mysql://192.168.0.199:3306/test?useUnicode=true&useSSL=false&characterEncoding=utf8");
// dsc.setSchemaName("public");
dsc.setDriverName("com.mysql.cj.jdbc.Driver");
dsc.setUsername("root");
dsc.setPassword("123456");
mpg.setDataSource(dsc);
//======================================================================================================================
// 包配置
PackageConfig pc = new PackageConfig();
pc.setModuleName(scanner("模块名"));
// 设置包的路径 该路径为 com.公司名.项目名
String packagePath = "com.zengjx.project";
pc.setParent(packagePath);
mpg.setPackageInfo(pc);
//======================================================================================================================
// 自定义配置
InjectionConfig cfg = new InjectionConfig() {
@Override
public void initMap() {
Map<String, Object> map = new HashMap<>();
List<TableInfo> tableInfoList = this.getConfig().getTableInfoList();
for (TableInfo tableInfo : tableInfoList) {
//项目包的路径 使用到的类有BaseQuery、MybatisPlusConfig、Result
map.put("packagePath", packagePath);
}
this.setMap(map);
}
};
//======================================================================================================================
// 如果模板引擎是 freemarker
String templatePath = "/templates/mapper.xml.ftl";
// 如果模板引擎是 velocity
// String templatePath = "/templates/mapper.xml.vm";
// 自定义输出配置
List<FileOutConfig> focList = new ArrayList<>();
// 自定义配置会被优先输出 这是一个示例
focList.add(new FileOutConfig(templatePath) {
@Override
public String outputFile(TableInfo tableInfo) {
// 自定义输出文件名，如果你 Entity 设置了前后缀、此处注意 xml 的名称会跟着发生变化！！
// 指定xml文件输出位置
return projectPath + "/src/main/resources/com/zengjx/project/" + pc.getModuleName() + "/mapper"
+ "/" + tableInfo.getEntityName() + "Mapper" + StringPool.DOT_XML;
}
});
// 自定义controller的代码模板
templatePath = "/templates/controller.java.ftl";
// 自定义配置会被优先输出
focList.add(new FileOutConfig(templatePath) {
@Override
public String outputFile(TableInfo tableInfo) {
// 自定义输出文件名 + pc.getModuleName()
String expand = projectPath + "/src/main/java/com/zengjx/project/" + pc.getModuleName() + "/" + "controller";
return String.format((expand + File.separator + "%s" + ".java") , tableInfo.getControllerName());
}
});
// 自定义entity的代码模板
templatePath = "/templates/entity.java.ftl";
// 自定义配置会被优先输出
focList.add(new FileOutConfig(templatePath) {
@Override
public String outputFile(TableInfo tableInfo) {
// 自定义输出文件名 + pc.getModuleName()
String expand = projectPath + "/src/main/java/com/zengjx/project/" + pc.getModuleName() + "/" + "entity";
return String.format((expand + File.separator + "%s" + ".java") , tableInfo.getEntityName());
}
});
// 自定义service的代码模板
templatePath = "/templates/service.java.ftl";
// 自定义配置会被优先输出
focList.add(new FileOutConfig(templatePath) {
@Override
public String outputFile(TableInfo tableInfo) {
// 自定义输出文件名 + pc.getModuleName()
String expand = projectPath + "/src/main/java/com/zengjx/project/" + pc.getModuleName() + "/" + "service";
return String.format((expand + File.separator + "%s" + ".java") , tableInfo.getServiceName());
}
});
// 自定义BaseQuery代码模板
templatePath = "/templates/baseQuery.java.ftl";
// 自定义配置会被优先输出
focList.add(new FileOutConfig(templatePath) {
@Override
public String outputFile(TableInfo tableInfo) {
// 自定义输出文件名 + pc.getModuleName()
String expand = projectPath + "/src/main/java/com/zengjx/project/" + "common";
return String.format((expand + File.separator + "%s" + ".java") , "BaseQuery");
}
});
// 自定义Result代码模板
templatePath = "/templates/result.java.ftl";
// 自定义配置会被优先输出
focList.add(new FileOutConfig(templatePath) {
@Override
public String outputFile(TableInfo tableInfo) {
// 自定义输出文件名 + pc.getModuleName()
String expand = projectPath + "/src/main/java/com/zengjx/project/" + "common";
return String.format((expand + File.separator + "%s" + ".java") , "Result");
}
});
// 自定义全局MybatisPlusConfig代码模板
templatePath = "/templates/mybatisPlusConfig.java.ftl";
// 自定义配置会被优先输出
focList.add(new FileOutConfig(templatePath) {
@Override
public String outputFile(TableInfo tableInfo) {
// 自定义输出文件名 + pc.getModuleName()
String expand = projectPath + "/src/main/java/com/zengjx/project/" + "globalconfig";
return String.format((expand + File.separator + "%s" + ".java") , "MybatisPlusConfig");
}
});
//======================================================================================================================
cfg.setFileOutConfigList(focList);
mpg.setCfg(cfg);
// 配置模板
TemplateConfig templateConfig = new TemplateConfig();
// 配置自定义输出模板
// 指定自定义模板路径，注意不要带上.ftl/.vm, 会根据使用的模板引擎自动识别
// templateConfig.setEntity("templates/entity2.java");
// templateConfig.setService();
// templateConfig.setController();
templateConfig.setXml(null);
mpg.setTemplate(templateConfig);
//======================================================================================================================
// 策略配置
StrategyConfig strategy = new StrategyConfig();
// 数据库表映射到实体的命名策略 下划线转驼峰命名
strategy.setNaming(NamingStrategy.underline_to_camel);
// 数据库表字段映射到实体的命名策略 下划线转驼峰命名
strategy.setColumnNaming(NamingStrategy.underline_to_camel);
// 设置entity继承的父类
//strategy.setSuperEntityClass("你自己的父类实体,没有就不用设置!");
// 设置实体类是否为lombok模型
strategy.setEntityLombokModel(true);
// 设置controller为restful风格
strategy.setRestControllerStyle(true);
// 设置controller的公共父类
//strategy.setSuperControllerClass("你自己的父类控制器,没有就不用设置!");
// 设置entity公共父类中的公共字段 如果这里设置了那么生成的entity就不会去生成Id了
//strategy.setSuperEntityColumns("id");
// 给那些表创建文件
strategy.setInclude(scanner("表名，多个英文逗号分割").split(","));
// 驼峰转连字符
strategy.setControllerMappingHyphenStyle(true);
// 设置表的前缀
strategy.setTablePrefix(pc.getModuleName() + "_");
// 将表的配置交给代码生成器
mpg.setStrategy(strategy);
// 创建模板引擎
mpg.setTemplateEngine(new FreemarkerTemplateEngine());
// 执行
mpg.execute();
}
}13.redis的配置文件
package com.zengjx.project.globalconfig;
import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.JsonTypeInfo;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.jsontype.impl.LaissezFaireSubTypeValidator;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.cache.RedisCacheWriter;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.StringRedisSerializer;
/**
* @author fastrabbit
* @date 2021/6/9 9:55
*/
@Configuration
public class RedisConfig extends CachingConfigurerSupport {
/**
* @description: 将模板RedisTemplate<String, Object>中的key和value进行序列化
* @param: RedisConnectionFactory
* @return: RedisTemplate<String, Object>
* @author: fastrabbit
* @date: 2021/6/11 9:12
*/
@Bean
public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
Jackson2JsonRedisSerializer<Object> serializer = new Jackson2JsonRedisSerializer<Object>(Object.class);
ObjectMapper objectMapper = new ObjectMapper();
objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
objectMapper.activateDefaultTyping(LaissezFaireSubTypeValidator.instance, ObjectMapper.DefaultTyping.NON_FINAL, JsonTypeInfo.As.WRAPPER_ARRAY);
serializer.setObjectMapper(objectMapper);
RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
redisTemplate.setConnectionFactory(redisConnectionFactory);
redisTemplate.setKeySerializer(new StringRedisSerializer());
redisTemplate.setValueSerializer(serializer);
redisTemplate.setHashKeySerializer(new StringRedisSerializer());
redisTemplate.setHashValueSerializer(serializer);
redisTemplate.afterPropertiesSet();
return redisTemplate;
}
/**
* @description: 设置RedisCacheManager
* @param: RedisTemplate
* @return: RedisCacheManager
* @author: fastrabbit
* @date: 2021/6/11 9:12
*/
@Bean
public RedisCacheManager redisCacheManager(RedisTemplate redisTemplate) {
RedisCacheWriter redisCacheWriter = RedisCacheWriter.nonLockingRedisCacheWriter(redisTemplate.getConnectionFactory());
RedisCacheConfiguration redisCacheConfiguration = RedisCacheConfiguration.defaultCacheConfig().serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(redisTemplate.getValueSerializer()));
return new RedisCacheManager(redisCacheWriter, redisCacheConfiguration);
}
}14.redis的模板一些常用方法
package com.zengjx.project.redis.test;
import io.swagger.models.auth.In;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.data.redis.connection.DataType;
import org.springframework.data.redis.core.*;
import org.springframework.test.context.junit4.SpringRunner;
import java.util.*;
import java.util.concurrent.TimeUnit;
/**
* @author fastrabbit
* @date 2021/6/9 9:30
*/
@RunWith(SpringRunner.class)
@SpringBootTest
public class RedisTemplateTest {
@Autowired
private RedisTemplate<String, Object> redisTemplate;
@Test
public void stringRedisTemplateTest() {
//保存：保存key和value
redisTemplate.opsForValue().set("stringKey1", "stringKey1_value");
//保存：保存key和value 如果Key存在则返回false 否则保存成功并返回true
Boolean message1 = redisTemplate.opsForValue().setIfAbsent("stringKey1", "message1");
System.out.println(message1);
//保存：保存key和value并设置过期时间
redisTemplate.opsForValue().set("stringKey2", "stringKey2_value", 20, TimeUnit.SECONDS);
//保存：通过map的方式保存key和value
HashMap<String, Object> hashMap1 = new HashMap<>();
hashMap1.put("stringKeyHash1", "stringKeyHash1_value");
hashMap1.put("stringKeyHash2", "stringKeyHash2_value");
hashMap1.put("stringKeyHash3", "stringKeyHash3_value");
redisTemplate.opsForValue().multiSet(hashMap1);
//保存：通过map的方式保存key和valu 如果map集合中的所有key在redis中不存在则添加否则不做修改
HashMap<String, Object> hashMap2 = new HashMap<>();
hashMap2.put("stringKeyHash3", "stringKeyHash3_value");
hashMap2.put("stringKeyHash4", "stringKeyHash4_value");
hashMap2.put("stringKeyHash5", "stringKeyHash5_value");
redisTemplate.opsForValue().multiSetIfAbsent(hashMap2);
//修改：在原来key值对应的value新增字符串到末尾处
redisTemplate.opsForValue().set("stringKey3", "stringKey3_value");
redisTemplate.opsForValue().append("stringKey3", "+新增字符串");
//修改：修改key对应的value值 使用覆盖的方式
redisTemplate.opsForValue().set("stringKey4", "stringKey4_value");
redisTemplate.opsForValue().set("stringKey4", "stringKey4_newValue");
//修改：修改key的值
redisTemplate.opsForValue().set("stringKey5", "stringKey5_value");
redisTemplate.rename("stringKey5", "newStringKey5");
//修改：修改key的值 如果存在则修改返回ture 否则报错：ERR no such key
redisTemplate.opsForValue().set("stringKey6", "stringKey6_value");
Boolean message2 = redisTemplate.renameIfAbsent("stringKey6", "newStringKey6");
System.out.println(message2);
//修改：修改key的value值并返回原来的value值
redisTemplate.opsForValue().set("stringKey7", "stringKey7_value");
String exchange = (String)redisTemplate.opsForValue().getAndSet("stringKey7", "newStringKey7_value");
System.out.println(exchange);
//查询：获取指定key对应的value值
redisTemplate.opsForValue().set("stringKey8", "stringKey8_value");
String stringKey8 = (String)redisTemplate.opsForValue().get("stringKey8");
System.out.println(stringKey8);
//查询：批量获取到key对应的value值 参数为Collection<String> keys
ArrayList<String> arrayListKeys = new ArrayList<>();
arrayListKeys.add("stringKey1");
arrayListKeys.add("stringKey2");
arrayListKeys.add("stringKey3");
List<Object> arrayListValues = redisTemplate.opsForValue().multiGet(arrayListKeys);
for (Object arrayListValue : arrayListValues) {
System.out.println(arrayListValue);
}
//查询：获取指定Key的value值并设定截取长度
redisTemplate.opsForValue().set("stringKey9", "stringKey9_value");
String stringKey9Value = redisTemplate.opsForValue().get("stringKey9", 1, 5);
System.out.println(stringKey9Value);
//查询：获取指定key的过期时间
redisTemplate.opsForValue().set("stringKey10", "stringKey10_value", 666, TimeUnit.SECONDS);
Long stringKey10Expire = redisTemplate.getExpire("stringKey10", TimeUnit.SECONDS);
System.out.println(stringKey10Expire);
//查询：从redis中随机获取到一个key值
String randomKey = redisTemplate.randomKey();
System.out.println(randomKey);
//查询：返回key的value的类型
redisTemplate.opsForValue().set("stringKey11", "stringKey11_value");
DataType stringKey11DataType = redisTemplate.type("stringKey11");
System.out.println(stringKey11DataType);
//查询：查询匹配的key值 *：匹配任意多个字符 ?：配置单个字符 []：配置括号内的某1个字符
Set<String> allKeys = redisTemplate.keys("*");
Set<String> somekeys = redisTemplate.keys("stringKey?");
Set<String> otherKeys = redisTemplate.keys("stringKey[123]");
//删除：删除单个的key和它的vlue
redisTemplate.opsForValue().set("stringKey12", "stringKey12_value");
Boolean deleteStringKey12 = redisTemplate.delete("stringKey12");
System.out.println(deleteStringKey12);
//删除：批量删除集合中的key值 返回删除了的数量
redisTemplate.opsForValue().set("stringKey13", "stringKey13_value");
redisTemplate.opsForValue().set("stringKey14", "stringKey14_value");
redisTemplate.opsForValue().set("stringKey15", "stringKey15_value");
ArrayList<String> arrayListDelete = new ArrayList<>();
arrayListDelete.add("stringKey13");
arrayListDelete.add("stringKey14");
arrayListDelete.add("stringKey15");
Long deleteArrayList = redisTemplate.delete(arrayListDelete);
System.out.println(deleteArrayList);
//其他：将key序列化为byte[]类型
redisTemplate.opsForValue().set("stringKey16", "stringKey16_value");
byte[] stringKey16ByteArray = redisTemplate.dump("stringKey16");
System.out.println(stringKey16ByteArray);
//其他：将key进行持久化保存
redisTemplate.opsForValue().set("stringKey17", "stringKey17_value");
Boolean stringKey17Persist = redisTemplate.persist("stringKey17");
System.out.println(stringKey17Persist);
//其他：将当前库中的key移动到指定的库中
redisTemplate.opsForValue().set("stringKey18", "stringKey18_value");
Boolean stringKey18Move = redisTemplate.move("stringKey18", 1);
System.out.println(stringKey18Move);
//其他：获取到key的value字符串长度
redisTemplate.opsForValue().set("stringKey19", "stringKey19_value");
Long stringKey19Size = redisTemplate.opsForValue().size("stringKey19");
System.out.println(stringKey19Size);
//其他：查看是否存在指定的key
Boolean hasStringKey19 = redisTemplate.hasKey("stringKey19");
System.out.println(hasStringKey19);
}
@Test
public void hashRedisTemplateTest() {
//保存：保存一个hashMap
redisTemplate.opsForHash().put("hashKey1", "field1", "field1_value");
//保存：保存一个hashMap 仅当field不存在的时候才保存成功
Boolean putIfAbsentField = redisTemplate.opsForHash().putIfAbsent("hashKey1", "field1", "field1_value_attach");
System.out.println(putIfAbsentField);
//保存：通过map的形式添加键值对
HashMap<String, Object> hashMap3 = new HashMap<>();
hashMap3.put("field2", "field2_value");
hashMap3.put("field2_attach1", "field2_attach1_value");
hashMap3.put("field2_attach2", "field2_attach2_value");
redisTemplate.opsForHash().putAll("hashKey2", hashMap3);
//修改：
redisTemplate.opsForHash().put("hashKey3", "field3", "field3_value");
redisTemplate.opsForHash().put("hashKey3", "field3", "newField3_value");
//查询：获取指定hashKey、field的value值
redisTemplate.opsForHash().put("hashKey4", "field4", "field4_value");
String getSpecifyValue = (String)redisTemplate.opsForHash().get("hashKey4", "field4");
System.out.println(getSpecifyValue);
//查询：获取指定hashKey的map值
redisTemplate.opsForHash().put("hashKey5", "field5", "field5_value");
Map<Object, Object> getSpecifyMap = redisTemplate.opsForHash().entries("hashKey5");
for (Object o : getSpecifyMap.keySet()) {
System.out.println(o);
System.out.println(getSpecifyMap.get(o));
}
//查询：获取指定hashkey中的所有field字段
HashMap<String, Object> hashMap4 = new HashMap<>();
hashMap4.put("field6", "field6_value");
hashMap4.put("field6_attach1", "field6_attach1_value");
hashMap4.put("field6_attach2", "field6_attach2_value");
redisTemplate.opsForHash().putAll("hashKey6", hashMap4);
Set<Object> getSpecifySet = redisTemplate.opsForHash().keys("hashKey6");
for (Object o : getSpecifySet) {
System.out.println(o);
}
//查询：获取到指定hashKey的field的数量
HashMap<String, Object> hashMap5 = new HashMap<>();
hashMap5.put("field7", "fiele7_value");
hashMap5.put("field7_attach1", "fiele7_attach1_value");
hashMap5.put("field7_attach2", "fiele7_attach2_value");
redisTemplate.opsForHash().putAll("hashKey7", hashMap5);
Long hashKey7Size = redisTemplate.opsForHash().size("hashKey7");
System.out.println(hashKey7Size);
//查询：获取指定hashKey的所有field的value值
HashMap<String, Object> hashMap6 = new HashMap<>();
hashMap6.put("field8", "field8_value");
hashMap6.put("field8_attach1", "field8_attach1_value");
hashMap6.put("field8_attach2", "field8_attach2_value");
redisTemplate.opsForHash().putAll("hashKey8", hashMap6);
List<Object> hashKey8Values = redisTemplate.opsForHash().values("hashKey8");
for (Object hashKey8Value : hashKey8Values) {
System.out.println(hashKey8Value);
}
}
@Test
public void listRedisTemplateTest() {
//保存：存储在key链表的右边 并返回长度
Long listKey1Length = redisTemplate.opsForList().rightPush("listKey1", "listKey1_value");
System.out.println(listKey1Length);
//保存：存储多个值在list的右边 参数为Collect<T> 参数泛型需要和设置的模板的泛型一致，不然保存的是数组而不是数组元素
redisTemplate.opsForList().rightPush("listKey2", "listKey2_value");
ArrayList<Object> arrayList1 = new ArrayList<>();
arrayList1.add("listKey2_attach1_value");
arrayList1.add("listKey2_attach2_value");
arrayList1.add("listKey2_attach3_value");
Long listKey2Length1 = redisTemplate.opsForList().rightPushAll("listKey2", "listKey2_attach1_value", "listKey2_attach2_value", "listKey2_attach3_value");
Long listKey2Length2 = redisTemplate.opsForList().rightPushAll("listKey2", arrayList1);
System.out.println(listKey2Length1);
System.out.println(listKey2Length2);
//保存：存储在key连表的左边 并返回长度
Long listKey3Length1 = redisTemplate.opsForList().leftPush("listKey3", "listKey3_value");
Long listKey3Length2 = redisTemplate.opsForList().leftPush("listKey3", "listKey3_attach1_value");
System.out.println(listKey3Length1);
System.out.println(listKey3Length2);
//保存：存储多个值在list的左边 参数为collect<T>
redisTemplate.opsForList().leftPush("listKey4", "listKey4_value");
ArrayList<Object> arrayList2 = new ArrayList<>();
arrayList2.add("listKey4_attach1_value");
arrayList2.add("listKey4_attach2_value");
arrayList2.add("listKey4_attach3_value");
Long listKey4Length1 = redisTemplate.opsForList().leftPushAll("listKey4", "listKey4_attach1_value", "listKey4_attach2_value", "listKey4_attach3_value");
Long listKey4Length2 = redisTemplate.opsForList().leftPushAll("listKey4", arrayList2);
System.out.println(listKey4Length1);
System.out.println(listKey4Length2);
//保存：在指定的key中的pivot(key的value)的前面添加值 如果存在则添加 否则不添加并返回-1
redisTemplate.opsForList().leftPush("listKey5", "listKey5_value");
Long listKey5Length1 = redisTemplate.opsForList().leftPush("listKey5", "nothing", "listKey5_attach1_value");
System.out.println(listKey5Length1);
//保存：在指定的key中的pivot(key的value)的后面添加值 如果存在则添加 否则不添加并返回-1
redisTemplate.opsForList().rightPush("listKey6", "listKey6_value");
Long listKey6Length1 = redisTemplate.opsForList().rightPush("listKey6", "nothing", "listKey6_attach1_value");
System.out.println(listKey6Length1);
//保存：只有当链表存在的时候才加入 否则返回0
Long nothing1 = redisTemplate.opsForList().leftPushIfPresent("nothing", "test");
Long nothing2 = redisTemplate.opsForList().rightPushIfPresent("nothing", "test");
System.out.println(nothing1);
System.out.println(nothing2);
//修改：修改指定索引处的值 如果索引大于链表长度或报错ERR index out of range
redisTemplate.opsForList().rightPush("listKey7", "listKey7_value");
redisTemplate.opsForList().set("listKey7", 0, "listKey7_attach1_value");
//修改：将链表key进行剪切，从指定的索引处开始到指定索引处结束
redisTemplate.opsForList().rightPushAll("listKey7", "listKey7_value", "listKey7_attach1_value", "listKey7_attach2_value");
redisTemplate.opsForList().trim("listKey7", 0, 1);
//查询：获取指定key和索引处的元素
redisTemplate.opsForList().rightPushAll("listKey8", "listKey8_value", "listKey8_attach1_value", "listKey8_attach2_value");
String listKey8IndexValues = (String)redisTemplate.opsForList().index("listKey8", 0);
System.out.println(listKey8IndexValues);
//查询：获取指定key和范围的元素集合 -1表示返回所有
redisTemplate.opsForList().rightPushAll("listKey9", "listKey9_value", "listKey9_attach1_value", "listKey9_attach2_value");
List<Object> listKey9RangeValues = redisTemplate.opsForList().range("listKey9", 0, 1);
for (Object listKey9RangeValue : listKey9RangeValues) {
System.out.println(listKey9RangeValue);
}
//删除：移除链表左边的第一个元素并获取到它的value值（如果列表没有元素会阻塞列表直到等待超时或发现可弹出元素为止）可以设置超时时间
redisTemplate.opsForList().rightPushAll("listKey10", "listKey10_value", "listKey10_attach1_value", "listKey10_attach2_value");
Object listKey10PopValue = redisTemplate.opsForList().leftPop("listKey10", 10, TimeUnit.SECONDS);
System.out.println(listKey10PopValue);
//删除：移除链表右边的第一个元素并获取到它的value值（如果列表没有元素会阻塞列表直到等待超时或发现可弹出元素为止）可以设置超时时间
redisTemplate.opsForList().rightPushAll("listKey11", "listKey11_value", "listKey11_attach1_value", "listKey11_attach2_value");
Object listKey11PopValue = redisTemplate.opsForList().rightPop("listKey11", 10, TimeUnit.SECONDS);
System.out.println(listKey11PopValue);
//删除：将一个链表的右边的第一个元素弹出放到另一个链表的左边
redisTemplate.opsForList().rightPushAll("listKey12", "listKey12_value", "listKey12_attach1_value", "listKey12_attach2_value");
redisTemplate.opsForList().rightPushAll("listKey13", "listKey13_value", "listKey13_attach1_value", "listKey13_attach2_value");
Object rightPopAndLeftPushValue = redisTemplate.opsForList().rightPopAndLeftPush("listKey12", "listKey13", 10, TimeUnit.SECONDS);
System.out.println(rightPopAndLeftPushValue);
//删除：将链表中值等于value的元素删除（index=0, 删除所有值等于value的元素; index>0, 从头部开始删除第一个值等于value的元素; index<0, 从尾部开始删除第一个值等于value的元素）
redisTemplate.opsForList().rightPushAll("listKey14", "listKey14_value", "listKey14_attach1_value", "listKey14_attach2_value");
redisTemplate.opsForList().rightPushAll("listKey15", "listKey15_value", "listKey15_attach1_value", "listKey15_attach2_value");
redisTemplate.opsForList().rightPushAll("listKey16", "listKey16_value", "listKey16_attach1_value", "listKey16_attach2_value");
Long listKey14Remove = redisTemplate.opsForList().remove("listKey14", 0, "listKey14_value");
Long listKey15Remove = redisTemplate.opsForList().remove("listKey15", 2, "listKey15_value");
Long listKey16Remove = redisTemplate.opsForList().remove("listKey16", -3, "listKey16_value");
System.out.println(listKey14Remove);
System.out.println(listKey15Remove);
System.out.println(listKey16Remove);
//其他：获取到指定的key的list的长度
redisTemplate.opsForList().rightPushAll("listKey17", "listKey17_value", "listKey17_attach1_value", "listKey17_attach2_value");
Long listKey17Size = redisTemplate.opsForList().size("listKey17");
System.out.println(listKey17Size);
}
@Test
public void setRedisTemplateTest() {
//保存：保存一个元素
Long setKey1Length1 = redisTemplate.opsForSet().add("setKey1", "setKey1_value");
System.out.println(setKey1Length1);
//保存：批量添加元素 好像不能使用set、list集合来批量添加
Long setKey2Length1 = redisTemplate.opsForSet().add("setKey2", "setKey2_value", "setKey2_attach1_value", "setKey2_attach2_value");
System.out.println(setKey2Length1);
//修改：没有找到修改value值的方法 可以通过先删除再保存的方式进行修改
//查询：获取指定集合中的所有元素
redisTemplate.opsForSet().add("setKey3", "setKey3_value", "setKey3_attach1_value", "setKey3_attach2_value");
Set<Object> setKey3Values = redisTemplate.opsForSet().members("setKey3");
for (Object setKey3Value : setKey3Values) {
System.out.println(setKey3Value);
}
//查询：随机获取到集合中的count个元素
redisTemplate.opsForSet().add("setKey4", "setKey4_value", "setKey4_attach1_value", "setKey4_attach2_value");
List<Object> setKey4Values = redisTemplate.opsForSet().randomMembers("setKey4", 2);
for (Object setKey4Value : setKey4Values) {
System.out.println(setKey4Value);
}
//查询：获取到两个集合的交集
redisTemplate.opsForSet().add("setKey5", "setKey5_value", "setKey5_attach1_value", "setKey5_setKey6_value");
redisTemplate.opsForSet().add("setKey6", "setKey6_value", "setKey6_attach1_value", "setKey5_setKey6_value");
Set<Object> set5AndSet6intersect = redisTemplate.opsForSet().intersect("setKey5", "setKey6");
for (Object o : set5AndSet6intersect) {
System.out.println(o);
}
//查询：获取多个集合的交集
ArrayList<String> arrayList1 = new ArrayList<>();
redisTemplate.opsForSet().add("setKey7", "setKey7_value", "setKey7_attach1_value", "setKey7_setKey8_setKey9_value");
redisTemplate.opsForSet().add("setKey8", "setKey8_value", "setKey8_attach1_value", "setKey7_setKey8_setKey9_value");
redisTemplate.opsForSet().add("setKey9", "setKey9_value", "setKey9_attach1_value", "setKey7_setKey8_setKey9_value");
arrayList1.add("setKey8");
arrayList1.add("setKey9");
Set<Object> setKey7AndSet8AndSet9Intersect = redisTemplate.opsForSet().intersect("setKey7", arrayList1);
for (Object o : setKey7AndSet8AndSet9Intersect) {
System.out.println(o);
}
//查询：将一个集合和一个或者多个集合的交集存储到另一个集合中
ArrayList<String> arrayList2 = new ArrayList<>();
redisTemplate.opsForSet().add("setKey10", "setKey10_value", "setKey10_attach1_value", "setKey10_setKey11_setKey12_value");
redisTemplate.opsForSet().add("setKey11", "setKey11_value", "setKey11_attach1_value", "setKey10_setKey11_setKey12_value");
redisTemplate.opsForSet().add("setKey12", "setKey12_value", "setKey12_attach1_value", "setKey10_setKey11_setKey12_value");
arrayList2.add("setKey11");
arrayList2.add("setKey12");
redisTemplate.opsForSet().intersectAndStore("setKey10", arrayList2, "setKey13");
//查询：获取一个和另一个或者一个和多个集合的并集
ArrayList<String> arrayList3 = new ArrayList<>();
redisTemplate.opsForSet().add("setKey14", "setKey14_value", "setKey14_attach1_value", "setKey14_setKey15_setKey16_value");
redisTemplate.opsForSet().add("setKey15", "setKey15_value", "setKey15_attach1_value", "setKey14_setKey15_setKey16_value");
redisTemplate.opsForSet().add("setKey16", "setKey16_value", "setKey16_attach1_value", "setKey14_setKey15_setKey16_value");
arrayList3.add("setKey15");
arrayList3.add("setKey16");
Set<Object> setKey14AndSet15AndSet16Union = redisTemplate.opsForSet().union("setKey14", arrayList3);
for (Object o : setKey14AndSet15AndSet16Union) {
System.out.println(o);
}
//查询：获取一个和另一个或者一个和多个集合的并集 并将集合存储在指定Key的reids中 并返回集合长度
Long setKey14AndSet15AndSet16Length = redisTemplate.opsForSet().unionAndStore("setKey14", arrayList3, "setKey17");
System.out.println(setKey14AndSet15AndSet16Length);
//查询：获取一个和另一个或者一个和多个集合的差集 就是第一个集合和其他集合独有的元素提取出来为一个新的集合
ArrayList<String> arrayList4 = new ArrayList<>();
redisTemplate.opsForSet().add("setKey18", "setKey18_value", "setKey18_attach1_value", "setKey18_setKey19_setKey20_value");
redisTemplate.opsForSet().add("setKey19", "setKey19_value", "setKey19_attach1_value", "setKey18_setKey19_setKey20_value");
redisTemplate.opsForSet().add("setKey20", "setKey20_value", "setKey20_attach1_value", "setKey18_setKey19_setKey20_value");
arrayList4.add("setKey19");
arrayList4.add("setKey20");
Set<Object> setKey18AndSet19AndSet20Difference = redisTemplate.opsForSet().difference("setKey18", arrayList4);
for (Object o : setKey18AndSet19AndSet20Difference) {
System.out.println(o);
}
//查询：获取一个和另一个或者一个和多个集合的差集 并将集合设置到指定key的redis中 并返回集合长度
Long setKey18AndSet19AndSet20Length = redisTemplate.opsForSet().differenceAndStore("setKey18", arrayList4, "setKey21");
System.out.println(setKey18AndSet19AndSet20Length);
//查询：随机获取一个集合中的元素
redisTemplate.opsForSet().add("setKey22", "setKey22_value", "setKey22_attach1_value", "setKey22_attach2_value");
String setKey22RandomValues = (String)redisTemplate.opsForSet().randomMember("setKey22");
System.out.println(setKey22RandomValues);
//查询：获取集合中的所有元素
redisTemplate.opsForSet().add("setKey23", "setKey23_value", "setKey23_attach1_value", "setKey23_attach2_value");
Set<Object> setKey23Values = redisTemplate.opsForSet().members("setKey23");
for (Object setKey23Value : setKey23Values) {
System.out.println(setKey23Value);
}
//删除：移除指定Key中的value元素 并返回集合长度
redisTemplate.opsForSet().add("setKey24", "setKey24_value", "setKey24_attach1_value", "setKey24_attach2_value");
Long setKey24Length = redisTemplate.opsForSet().remove("setKey24", "setKey24_attach2_value");
System.out.println(setKey24Length);
//删除：随机删除指定key中的一个元素并返回
redisTemplate.opsForSet().add("setKey25", "setKey25_value", "setKey25_attach1_value", "setKey25_attach2_value");
Object setKey25Value = redisTemplate.opsForSet().pop("setKey25");
System.out.println(setKey25Value);
//其他：获取集合的大小
redisTemplate.opsForSet().add("setKey26", "setKey26_value", "setKey26_attach1_value", "setKey26_attach2_value");
Long setKey26Length = redisTemplate.opsForSet().size("setKey26");
System.out.println(setKey26Length);
}
@Test
public void zSetRedisTemplateTest() {
//保存：保存一个一个元素到集合中 第三个参数score为排序的权值 权值越小排序越前（左）
Boolean zSetKey1 = redisTemplate.opsForZSet().add("zSetKey1", "zSetKey1_value", 1);
System.out.println(zSetKey1);
//修改：给指定的key的value的score增加值 原来的score+新增值
redisTemplate.opsForZSet().add("zSetKey2", "zSetKey2_value", 1);
Double zSetKey2Score = redisTemplate.opsForZSet().incrementScore("zSetKey2", "zSetKey2_value", 5);
System.out.println(zSetKey2Score);
//查询：返回元素在集合中的排名
redisTemplate.opsForZSet().add("zSetKey3", "zSetKey3_value", 1);
redisTemplate.opsForZSet().add("zSetKey3", "zSetKey3_attach1_value", 2);
redisTemplate.opsForZSet().add("zSetKey3", "zSetKey3_attach2_value", 3);
Long zSetKey3Rank = redisTemplate.opsForZSet().rank("zSetKey3", "zSetKey3_attach2_value");
System.out.println(zSetKey3Rank);
//查询：获取集合集合给定区间的元素 -1表示查询所有
DefaultTypedTuple<Object> objectDefaultTypedTuple1 = new DefaultTypedTuple<Object>("zSetKey4_value", 1d);
DefaultTypedTuple<Object> objectDefaultTypedTuple2 = new DefaultTypedTuple<Object>("zSetKey4_attach1_value", 2d);
DefaultTypedTuple<Object> objectDefaultTypedTuple3 = new DefaultTypedTuple<Object>("zSetKey4_attach2_value", 3d);
Set<ZSetOperations.TypedTuple<Object>> typedTuples = new HashSet<>();
typedTuples.add(objectDefaultTypedTuple1);
typedTuples.add(objectDefaultTypedTuple2);
typedTuples.add(objectDefaultTypedTuple3);
redisTemplate.opsForZSet().add("zSetKey4", typedTuples);
Set<ZSetOperations.TypedTuple<Object>> zSetKey4 = redisTemplate.opsForZSet().reverseRangeWithScores("zSetKey4", 1, 2);
for (ZSetOperations.TypedTuple<Object> objectTypedTuple : zSetKey4) {
Double score = objectTypedTuple.getScore();
Object value = objectTypedTuple.getValue();
System.out.println(value);
System.out.println(score);
}
//查询：按照score值进行 结果按照score从小到大进行排序
Set<ZSetOperations.TypedTuple<Object>> zSetKey41 = redisTemplate.opsForZSet().reverseRangeWithScores("zSetKey4", 1, 2);
for (ZSetOperations.TypedTuple<Object> objectTypedTuple : zSetKey41) {
Double score = objectTypedTuple.getScore();
Object value = objectTypedTuple.getValue();
System.out.println(score);
System.out.println(value);
}
//查询key对应的value值在集合中的排名
Long zSetKey4ValueRank = redisTemplate.opsForZSet().reverseRank("zSetKey4", "zSetKey4_attach2_value");
System.out.println(zSetKey4ValueRank);
//获取集合的大小
Long zSetKey4Length2 = redisTemplate.opsForZSet().size("zSetKey4");
System.out.println(zSetKey4Length2);
//获取指定key和value中的score值
Double score = redisTemplate.opsForZSet().score("zSetKey4", "zSetKey4_value");
System.out.println(score);
//删除指定key的指定value值 并返回删除元素的个数
redisTemplate.opsForZSet().add("zSetKey5", "zSetKey5_value", 1);
redisTemplate.opsForZSet().add("zSetKey5", "zSetKey5_attach1_value", 2);
redisTemplate.opsForZSet().add("zSetKey5", "zSetKey5_attach2_value", 3);
Long zSetKey5Length1 = redisTemplate.opsForZSet().remove("zSetKey5", "zSetKey5_value");
System.out.println(zSetKey5Length1);
}
@Test
public void emptyRedis() {
Set<String> keys = redisTemplate.keys("*");
redisTemplate.delete(keys);
}
}15.操作redis的一些注解的使用
package com.zengjx.project.annotation.service.impl;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.zengjx.project.common.Result;
import com.zengjx.project.annotation.entity.Food;
import com.zengjx.project.annotation.mapper.FoodMapper;
import com.zengjx.project.annotation.service.IFoodService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.cache.annotation.CachePut;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import java.util.List;
/**
* @author fastrabbit
* @date 2021-06-11
*/
@Service
@Transactional(rollbackFor=Exception.class)
public class FoodServiceImpl extends ServiceImpl<FoodMapper, Food> implements IFoodService {
@Autowired
private FoodMapper foodMapper;
@Autowired
private IFoodService foodService;
/**
* @author fastrabbit
* @description 根据id查询单个数据 将查询到的数据放入到redis缓存中，如果根据key值能够在redis中找到则直接返回redis中的数据不执行代码 condition为缓存条件
* @date 2021-06-11
*/
@Override
@Cacheable(value = "PROJECT:ANNOTATION", key = "'FOOD:'+#food.id", condition = "#food.id>0")
public Result<Food> getById(Food food) {
Result<Food> foodResult = new Result<>();
foodResult.setData(foodMapper.selectById(food.getId()));
return foodResult;
}
/**
* @author fastrabbit
* @description 根据查询条件查询分页数据 将查询到的数据放入到redis缓存中，如果根据key值能够在redis中找到则直接返回redis中的数据不执行代码 condition为缓存条件
* @date 2021-06-11
*/
@Override
@Cacheable(value = "PROJECT:ANNOTATION", key = "'FOOD:'+#food.page+'_'+#food.rows", condition = "#food.page>0 and #food.rows>=10")
public Result<List<Food>> findListByPage(Food food) {
Result<List<Food>> listResult = new Result<>();
Page<Food> foodPage = new Page<>(food.getPage(), food.getRows());
QueryWrapper<Food> foodQueryWrapper = new QueryWrapper<>();
List<Food> records = foodMapper.selectPage(foodPage, foodQueryWrapper).getRecords();
listResult.setData(records);
listResult.setTotal(records.size());
return listResult;
}
/**
* @author fastrabbit
* @description 查询所有数据 将查询到的数据放入到redis缓存中，如果根据key值能够在redis中找到则直接返回redis中的数据不执行代码
* @date 2021-06-11
*/
@Override
@Cacheable(value = "PROJECT:ANNOTATION", key = "'FOOD:'+'ALL'")
public Result<List<Food>> getAll() {
Result<List<Food>> foodResult = new Result<>();
List<Food> foods = foodMapper.selectList(null);
foodResult.setData(foods);
foodResult.setTotal(foods.size());
return foodResult;
}
/**
* @author fastrabbit
* @description 新增单个数据
* @date 2021-06-11
*/
@Override
public Result<Object> insert(Food food) {
Result<Object> objectResult = new Result<>();
foodMapper.insert(food);
// 通过调用上面的getById方法将新增的数据添加到redis中
// 因为redis注解存储的方式使用的是spring的aop动态代理所以通过注入自己的方式来使用代理类中的方法
foodService.getById(food);
return objectResult;
}
/**
* @author fastrabbit
* @description 修改单个数据
* @date 2021-06-11
*/
@Override
public Result<Object> update(Food food) {
Result<Object> objectResult = new Result<>();
foodMapper.updateById(food);
// 通过调用下面的redisUpdate方法将存储在redis中的数据进行更新
// 因为redis注解存储的方式使用的是spring的aop动态代理所以通过注入自己的方式来使用代理类中的方法
Result<Food> byId = foodService.redisUpdate(food);
Food data = byId.getData();
System.out.println(data);
return objectResult;
}
/**
* @author fastrabbit
* @Description 修改redis缓存中的数据 @CachePut注解：一定会执行代码然后将返回数据存放在redis中，保证数据库和redis中的数据一致性
* @Date 13:38 2021/6/11
*/
@Override
@CachePut(value = "PROJECT:ANNOTATION", key = "'FOOD:'+#food.id", condition = "#food.id>0")
public Result<Food> redisUpdate(Food food) {
Result<Food> foodResult = new Result<>();
foodResult.setData(foodMapper.selectById(food.getId()));
return foodResult;
}
/**
* @author fastrabbit
* @description 删除单个数据 @CacheEvict：当执行到该方法时会根据key将redis中的数据进行删除，具有多项配置
* @date 2021-06-11
*/
@Override
@CacheEvict(value = "PROJECT:ANNOTATION", key = "'FOOD:'+#food.id", condition = "#food.id>0")
public Result<Object> delete(Food food) {
Result<Object> objectResult = new Result<>();
foodMapper.deleteById(food.getId());
return objectResult;
}
}以上就是“springboot+mybatisplus+redis的demo怎么实现”这篇文章的所有内容，感谢各位的阅读！相信大家阅读完这篇文章都有很大的收获，小编每天都会为大家更新不同的知识，如果还想学习更多的知识，请关注亿速云行业资讯频道。
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