小编给大家分享一下RestTemplate如何添加HTTPS证书,相信大部分人都还不怎么了解,因此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大有收获,下面让我们一起去了解一下吧!
先通过浏览器将未签名验证的证书保存到本地, 点击 不安全–> 证书–> 详细信息 --> 复制到文件 然后默认选择 起一个文件名 , 保存即可, 比如我将证书保存在了桌面 , 命名为 xx.cer
若是想要在项目中用到证书 , 需要先将证书导入到JDK的证书管理里面, 导入命令如下:
keytool -import -noprompt -trustcacerts -alias xx -keystore /home/oracle/jdk1.8.0_181/jre/lib/security/cacerts -file xx.cer
对上面的命令做一个解释 此命令是在linux服务器内执行的 , 在执行这个命令的时候就在证书所在的文件夹下打开终端, 然后命名一下别名 , 别名最好和证书名称一致 , 如上, 都叫xx , 另外将上面命令中的JDK路径换成你的实际路径即可
上面命令输入完毕后回车 , 会让你写密码啥的 , 就写 changeit 若是changeit不行就写 changeme 一般的 chageit 就可以了
只将证书导入JDK就可以了吗? 我这里验证的是不可以的, 必须还要生成对应的 keystore文件
keystore文件生成命令: keytool -import -file xx.cer -keystore xx.keystore
对上面的命令做一个解释 , 该命令也是在linux下执行的 ,当然windows下也可以的 , 执行的时候也是在证书所在文件夹进行的 , 若是提示权限不够 那就再加sudo , windows就以管理员的身份执行
回车后又会让你输入密码 , 那么就还对应着输入 chageit 即可
执行完毕后会在当前路径下再产生一个xx.keystore文件
将上面上传的xx.keystore 文件文件复制到你的项目的类路径下
将下面的这个restTemplate的配置复制到你的项目中去,其中里面用到了一个httpConverter 这个是做json格式转换的, 和HTTPS没太大关系 , 若是不需要就将它以及相关代码删掉即可
package com.abc.air.config; import java.io.File; import java.io.FileInputStream; import java.io.InputStream; import java.security.KeyManagementException; import java.security.KeyStore; import java.security.KeyStoreException; import java.security.NoSuchAlgorithmException; import java.security.cert.X509Certificate; import java.util.ArrayList; import java.util.List; import org.apache.http.config.Registry; import org.apache.http.config.RegistryBuilder; import org.apache.http.conn.socket.ConnectionSocketFactory; import org.apache.http.conn.socket.PlainConnectionSocketFactory; import org.apache.http.conn.ssl.NoopHostnameVerifier; import org.apache.http.conn.ssl.SSLConnectionSocketFactory; import org.apache.http.impl.client.CloseableHttpClient; import org.apache.http.impl.client.HttpClients; import org.apache.http.impl.conn.PoolingHttpClientConnectionManager; import org.apache.http.ssl.SSLContextBuilder; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.core.io.ClassPathResource; import org.springframework.http.client.HttpComponentsClientHttpRequestFactory; import org.springframework.http.converter.HttpMessageConverter; import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter; import org.springframework.http.converter.xml.MappingJackson2XmlHttpMessageConverter; import org.springframework.web.client.RestTemplate; import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter; /** * Created by ZhaoTengchao on 2019/4/12. */ @Configuration public class RestTemplateConfig { @Autowired private FastJsonHttpMessageConverter httpMessageConverter; @Bean RestTemplate restTemplate() throws Exception { HttpComponentsClientHttpRequestFactory factory = new HttpComponentsClientHttpRequestFactory(); factory.setConnectionRequestTimeout(5 * 60 * 1000); factory.setConnectTimeout(5 * 60 * 1000); factory.setReadTimeout(5 * 60 * 1000); // https SSLContextBuilder builder = new SSLContextBuilder(); KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType()); ClassPathResource resource = new ClassPathResource("nonghang.keystore"); InputStream inputStream = resource.getInputStream(); keyStore.load(inputStream, null); SSLConnectionSocketFactory socketFactory = new SSLConnectionSocketFactory(builder.build(), NoopHostnameVerifier.INSTANCE); Registry<ConnectionSocketFactory> registry = RegistryBuilder.<ConnectionSocketFactory>create() .register("http", new PlainConnectionSocketFactory()) .register("https", socketFactory).build(); PoolingHttpClientConnectionManager phccm = new PoolingHttpClientConnectionManager(registry); phccm.setMaxTotal(200); CloseableHttpClient httpClient = HttpClients.custom().setSSLSocketFactory(socketFactory).setConnectionManager(phccm).setConnectionManagerShared(true).build(); factory.setHttpClient(httpClient); RestTemplate restTemplate = new RestTemplate(factory); List<HttpMessageConverter<?>> converters = restTemplate.getMessageConverters(); ArrayList<HttpMessageConverter<?>> convertersValid = new ArrayList<>(); for (HttpMessageConverter<?> converter : converters) { if (converter instanceof MappingJackson2HttpMessageConverter || converter instanceof MappingJackson2XmlHttpMessageConverter) { continue; } convertersValid.add(converter); } convertersValid.add(httpMessageConverter); restTemplate.setMessageConverters(convertersValid); inputStream.close(); return restTemplate; } }
到此配置完毕!
本文简述一下怎么使用restTemplate来访问https。
<dependency> <groupId>org.apache.httpcomponents</groupId> <artifactId>httpclient</artifactId> <version>4.5.3</version> </dependency>
这里使用httpclient的factory
@Bean public RestTemplate restTemplate() throws KeyStoreException, NoSuchAlgorithmException, KeyManagementException { TrustStrategy acceptingTrustStrategy = (X509Certificate[] chain, String authType) -> true; SSLContext sslContext = org.apache.http.ssl.SSLContexts.custom() .loadTrustMaterial(null, acceptingTrustStrategy) .build(); SSLConnectionSocketFactory csf = new SSLConnectionSocketFactory(sslContext); CloseableHttpClient httpClient = HttpClients.custom() .setSSLSocketFactory(csf) .build(); HttpComponentsClientHttpRequestFactory requestFactory = new HttpComponentsClientHttpRequestFactory(); requestFactory.setHttpClient(httpClient); RestTemplate restTemplate = new RestTemplate(requestFactory); return restTemplate; }
@Test public void testHttps(){ String url = "https://free-api.heweather.com/v5/forecast?city=CN101080101&key=5c043b56de9f4371b0c7f8bee8f5b75e"; String resp = restTemplate.getForObject(url, String.class); System.out.println(resp); }
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