HttpClient4.2.X绕过SSL验证实现https请求

HttpClient4.2.X绕过SSL验证实现https请求

之前写过Httpclient4.5.X绕过SSL验证实现https请求，今天又遇到了这个问题，把代码复制过去发现有些类没有，这是版本升级后新增的一些类旧版本没有。项目中httpclient版本4.2.6，理论上4.2.X都适用，如果版本不对就不用往下看了。

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• 创建一个SSLClient类

package cn.pconline.activity.util;

import org.apache.http.conn.ClientConnectionManager;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.scheme.SchemeRegistry;
import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.impl.client.DefaultHttpClient;

import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

/**
 * 继承DefaultHttpClient
 * 创建的SSLClient对象发送https 请求，绕过java的证书信任检查
 */
public class SSLClient extends DefaultHttpClient {
    //用于进行Https请求的HttpClient
    public SSLClient() throws Exception {
        super();
        SSLContext ctx = SSLContext.getInstance("TLS");
        X509TrustManager tm = new X509TrustManager() {
            @Override
            public void checkClientTrusted(X509Certificate[] chain,String authType) throws CertificateException { }
            @Override
            public void checkServerTrusted(X509Certificate[] chain,String authType) throws CertificateException { }
            @Override
            public X509Certificate[] getAcceptedIssuers() {return null; }
        };
        ctx.init(null, new TrustManager[]{tm}, null);
        SSLSocketFactory ssf = new SSLSocketFactory(ctx, SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
        ClientConnectionManager ccm = this.getConnectionManager();
        SchemeRegistry sr = ccm.getSchemeRegistry();
        sr.register(new Scheme("https", 443, ssf));
    }
}

• HttpClient创建方法

// HttpGet
HttpClient httpClient = new SSLClient(); //这里使用自己创建的类
HttpGet httpGet = new HttpGet("https://www.gridsum.com");
HttpResponse httpResponse = httpClient.execute(httpGet);
String result = null;
if (httpResponse != null) {
    HttpEntity resEntity = httpResponse.getEntity();
    if (resEntity != null) {
        result = EntityUtils.toString(resEntity, "UTF-8");
    }
}

// HttpPost和上面使用方法一样

参考文档：

https://www.jianshu.com/p/637ca9a44b28