JAVA利用HttpClient进行POST请求（HTTPS）

目前，要为另一个项目提供接口，接口是用HTTP URL实现的，最初的想法是另一个项目用jQuery post进行请求。
但是，很可能另一个项目是部署在别的机器上，那么就存在跨域问题，而jquery的post请求是不允许跨域的。
这时，就只能够用HttpClient包进行请求了，同时由于请求的URL是HTTPS的，为了避免需要证书，所以用一个类继承DefaultHttpClient类，忽略校验过程。
1.写一个SSLClient类，继承至HttpClient

[java] view
plain copy

import java.security.cert.CertificateException;  

import java.security.cert.X509Certificate;  

import javax.net.ssl.SSLContext;  

import javax.net.ssl.TrustManager;  

import javax.net.ssl.X509TrustManager;  

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;  

//用于进行Https请求的HttpClient  

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.写一个利用HttpClient发送post请求的类

[java] view
plain copy

import java.util.ArrayList;  

import java.util.Iterator;  

import java.util.List;  

import java.util.Map;  

import java.util.Map.Entry;  

import org.apache.http.HttpEntity;  

import org.apache.http.HttpResponse;  

import org.apache.http.NameValuePair;  

import org.apache.http.client.HttpClient;  

import org.apache.http.client.entity.UrlEncodedFormEntity;  

import org.apache.http.client.methods.HttpPost;  

import org.apache.http.message.BasicNameValuePair;  

import org.apache.http.util.EntityUtils;  

/* 

 * 利用HttpClient进行post请求的工具类 

 */  

public class HttpClientUtil {  

    public String doPost(String url,Map<String,String> map,String charset){  

        HttpClient httpClient = null;  

        HttpPost httpPost = null;  

        String result = null;  

        try{  

            httpClient = new SSLClient();  

            httpPost = new HttpPost(url);  

            //设置参数  

            List<NameValuePair> list = new ArrayList<NameValuePair>();  

            Iterator iterator = map.entrySet().iterator();  

            while(iterator.hasNext()){  

                Entry<String,String> elem = (Entry<String, String>) iterator.next();  

                list.add(new BasicNameValuePair(elem.getKey(),elem.getValue()));  

            }  

            if(list.size() > 0){  

                UrlEncodedFormEntity entity = new UrlEncodedFormEntity(list,charset);  

                httpPost.setEntity(entity);  

            }  

            HttpResponse response = httpClient.execute(httpPost);  

            if(response != null){  

                HttpEntity resEntity = response.getEntity();  

                if(resEntity != null){  

                    result = EntityUtils.toString(resEntity,charset);  

                }  

            }  

        }catch(Exception ex){  

            ex.printStackTrace();  

        }  

        return result;  

    }  

}  

3.调用post请求的测试代码

[java] view
plain copy

import java.util.HashMap;  

import java.util.Map;  

//对接口进行测试  

public class TestMain {  

    private String url = "https://192.168.1.101/";  

    private String charset = "utf-8";  

    private HttpClientUtil httpClientUtil = null;  

      

    public TestMain(){  

        httpClientUtil = new HttpClientUtil();  

    }  

      

    public void test(){  

        String httpOrgCreateTest = url + "httpOrg/create";  

        Map<String,String> createMap = new HashMap<String,String>();  

        createMap.put("authuser","*****");  

        createMap.put("authpass","*****");  

        createMap.put("orgkey","****");  

        createMap.put("orgname","****");  

        String httpOrgCreateTestRtn = httpClientUtil.doPost(httpOrgCreateTest,createMap,charset);  

        System.out.println("result:"+httpOrgCreateTestRtn);  

    }  

      

    public static void main(String[] args){  

        TestMain main = new TestMain();  

        main.test();  

    }  

}  

httpClient4.2的jar包下载路径：http://download.csdn.net/detail/hqmryang/4582440#comment