如何使用HttpClient来发送带客户端证书的请求,以及如何忽略掉对服务器端证书的校验

时间:2021-10-01 11:58:26

最近要做客户端和服务器端的双向认证,在客户端向服务器端发送带证书的请求这里有一点问题,网上的例子大多都不太好使,于是找了github上httpclient源代码中的例子改造了一下,终于弄明白了

github上我参考的例子在:https://github.com/apache/httpclient/blob/4.5.x/httpclient/src/examples/org/apache/http/examples/client/ClientCustomSSL.java

下面先贴上我自己的代码(需要导入HttpClient等相关jar包),然后再说明

import org.apache.commons.io.IOUtils;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.conn.ssl.TrustSelfSignedStrategy;
import org.apache.http.conn.ssl.TrustStrategy;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.ssl.SSLContexts;
import org.apache.http.util.EntityUtils; import javax.net.ssl.SSLContext;
import java.io.File;
import java.io.FileInputStream;
import java.security.KeyStore;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate; /*
* Created with Intellij IDEA
* USER: 焦一平
* Date: 2016/5/8
* Time: 1:10
* To change this template use File | Settings | File Template
*/
public class SSLDemo {
public static void main(String[] args) throws Exception {
KeyStore keyStore = KeyStore.getInstance("PKCS12");
keyStore.load(new FileInputStream(new File("C:\\Users\\Administrator\\Desktop\\jiaoyiping.p12")), "123456".toCharArray());
SSLContext sslcontext = SSLContexts.custom()
//忽略掉对服务器端证书的校验
.loadTrustMaterial(new TrustStrategy() {
@Override
public boolean isTrusted(X509Certificate[] chain, String authType) throws CertificateException {
return true;
}
}) //加载服务端提供的truststore(如果服务器提供truststore的话就不用忽略对服务器端证书的校验了)
//.loadTrustMaterial(new File("D:\\truststore.jks"), "123456".toCharArray(),
// new TrustSelfSignedStrategy())
.loadKeyMaterial(keyStore, "cmcc".toCharArray())
.build();
SSLConnectionSocketFactory sslConnectionSocketFactory = new SSLConnectionSocketFactory(
sslcontext,
new String[]{"TLSv1"},
null,
SSLConnectionSocketFactory.getDefaultHostnameVerifier());
CloseableHttpClient httpclient = HttpClients.custom()
.setSSLSocketFactory(sslConnectionSocketFactory)
.build(); try { HttpGet httpget = new HttpGet("https://10.2.5.116/PnsReceiver/ReceiveMessage"); System.out.println("Executing request " + httpget.getRequestLine()); CloseableHttpResponse response = httpclient.execute(httpget);
try {
HttpEntity entity = response.getEntity();
System.out.println(response.getStatusLine());
System.out.println(IOUtils.toString(entity.getContent()));
EntityUtils.consume(entity);
} finally {
response.close();
}
} finally {
httpclient.close();
}
}
}
SSLContexts.custom() 方法返回一个 SSLContextBuilder实例,来构建SSLContext,下面是SSLContextBuilder的方法列表:

如何使用HttpClient来发送带客户端证书的请求,以及如何忽略掉对服务器端证书的校验

其中:
loadKeyMaterial()重载方法是加载客户端证书用的
loadTrustMaterial()重载方法是加载服务器端相关信息用的(我们就是使用 loadTrustMaterial(TrustStrategy trustStrategy) 方法自己实现了一个信任策略,不对服务器端的证书进行校验), 在生成HttpClient的时候,指定相应的 SSLSocketFactory,之后,使用这个HttpClient发送的GET请求和POST请求就自动地附加上了证书信息 如果我们只需要忽略掉对服务器端证书的验证,而不需要发送客户端证书信息,在构建SSLContext的时候,只需要 loadTrustMaterial() 不需要 loadKeyMaterial() 关于客户端证书的类型问题:我们导出的pfx或者P12后缀的文件都是pkcs12类型的,根据java的文档,我找到了KeyStore支持的三种类型,如下图:

如何使用HttpClient来发送带客户端证书的请求,以及如何忽略掉对服务器端证书的校验


客户端如何只信任某个服务器端的证书信息 会在之后的文章中写