RestTemplate添加HTTPS证书全过程解析
目录
- RestTemplate添加HTTPS证书
- 证书的下载
- 证书导入JDK
- 生成keystore文件
- 项目中配置
- RestTemplate访问HTTPS
- maven
- 配置
- 验证
RestTemplate添加HTTPS证书
证书的下载
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
证书导入JDK
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
生成keystore文件
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
项目中配置
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！
RestTemplate访问HTTPS
本文简述一下怎么使用restTemplate来访问https。
maven
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.5.3</version>
</dependency>
这里使用httpclient的factory
配置
@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;
}
验证
@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);
}
以上为个人经验，希望能给大家一个参考，也希望大家多多支持自由互联。
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