HttpClient 之 发送Https请求

HttpClient包是一个优秀的Http请求的开源jar。

本文Http工具类的封装基于HttpClient，封装后的工具类支持Https请求。

但是由于项目的需要快速的实现，以下代码还可能会有点过时，但是要是可行的，并且相对比较简单。

1.实现一个SSLClient的客户端

 

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;public class SSLClient extends DefaultHttpClient {    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));    }}

 

 

2.HttpClientUtils工具类

 

import com.google.common.base.Charsets;import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.client.HttpClient;import org.apache.http.client.methods.HttpPost;import org.apache.http.entity.StringEntity;import org.apache.http.util.EntityUtils;import org.slf4j.Logger;import org.slf4j.LoggerFactory;public class HttpClientUtil {    public static final Logger logger = LoggerFactory.getLogger(HttpClientUtil.class);    public static String doPost(String url, String json) {        HttpClient httpClient;        HttpPost httpPost;        String result = null;        try {            httpClient = new SSLClient();            httpPost = new HttpPost(url);            StringEntity entity = new StringEntity(json, Charsets.UTF_8);//解决中文乱码问题            entity.setContentEncoding("UTF-8");            entity.setContentType("application/json");            httpPost.setEntity(entity);            HttpResponse response = httpClient.execute(httpPost);            if (response != null) {                HttpEntity resEntity = response.getEntity();                if (resEntity != null) {                    result = EntityUtils.toString(resEntity, Charsets.UTF_8);                }            }        } catch (Exception e) {            logger.error("调用访问https工具类, 抛错：", e);        }        return result;    }}

 

 

 

http://www.cnblogs.com/stevendes/p/5971706.html