HttpClientUtil发送json格式请求

package http;

import java.util.ArrayList;

import java.util.Iterator;

import java.util.List;

import java.util.Map;  

import java.util.Map.Entry;

import net.sf.json.JSONObject;

import util.Base64;

import org.apache.commons.httpclient.params.HttpMethodParams;

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.CloseableHttpResponse;

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

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

import org.apache.http.entity.StringEntity;

import org.apache.http.message.BasicNameValuePair;

import org.apache.http.util.EntityUtils;

import org.apache.log4j.Logger;

/*

 * 利用HttpClient进行post请求的工具类

 */  

public class HttpClientUtil {  

    

    private static final Logger logger = Logger.getLogger(HttpClientUtil.class);

    

    static{

        try {

            System.setProperty("jsse.enableSNIExtension", "false");

        } catch (Exception e) {

            e.printStackTrace();

        }

    }

    

    /**

     * 发送post请求

     * @param url 请求路径

     * @param param 请求json数据

     * @return

     */

    public static String doPost(String url,JSONObject param){  

        HttpPost httpPost = null;  

        String result = null;  

        try{  

            HttpClient client =  new SSLClient();

            httpPost = new HttpPost(url);

            if(param != null){

                StringEntity se = new StringEntity(param.toString(),"utf-8");

//                se.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE, "application/json; charset="));

                httpPost.setEntity(se); //post方法中，加入json数据

                httpPost.setHeader("Content-Type","application/json");

            }

            

            HttpResponse response = client.execute(httpPost);

            if(response != null){  

                HttpEntity resEntity = response.getEntity();  

                if(resEntity != null){  

                    result = EntityUtils.toString(resEntity,"utf-8");  

                }  

            }  

            

        }catch(Exception ex){  

            ex.printStackTrace();  

        }  

        System.out.println("返回结果:\n"+result);

        return result;  

    }  

    

    /**

     * 发送post请求

     * @param url 请求路径

     * @param jsonparam 请求json数据字符串

     * @return

     */

    public static String taikangPost(String url,String jsonparam){  

        HttpPost httpPost = null;  

        String result = null;  

        try{  

            HttpClient client =  new SSLClient();

            httpPost = new HttpPost(url);

            logger.info("请求路径:\n"+url);

            logger.info("请求参数:\n"+jsonparam);

            if(jsonparam != null){

                jsonparam = Base64.encodeGBK(jsonparam.getBytes("GBK"));

                StringEntity se = new StringEntity(jsonparam,"GBK");

                httpPost.setEntity(se); //post方法中，加入json数据

                httpPost.setHeader("Content-Type","application/text");

            }

            

            HttpResponse response = client.execute(httpPost);

            

            if(response != null){  

                HttpEntity resEntity = response.getEntity();  

                if(resEntity != null){  

                    result = EntityUtils.toString(resEntity,"GBK");

                    logger.info("返回结果原始字符串:\n"+result);

                    result = Base64.decode(result,"GBK");

                }  

            }  

            

        }catch(Exception ex){  

            ex.printStackTrace();  

        }  

        logger.info("返回结果:\n"+result);

        return result;  

    }  

    

    

    /**

     * 发送post请求

     * @param url 请求路径

     * @param param 请求参数数据

     * @return

     */

    @SuppressWarnings("unchecked")

    public static String doPostMap(String url,Map<String, String> map){  

        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,"UTF-8");  

                httpPost.setEntity(entity);  

            }  

            HttpResponse response = httpClient.execute(httpPost);  

            if(response != null){  

                HttpEntity resEntity = response.getEntity();  

                if(resEntity != null){  

                    result = EntityUtils.toString(resEntity,"UTF-8");  

                }  

            }  

        }catch(Exception ex){  

            ex.printStackTrace();  

        }  

        logger.info("返回结果"+result);

        return result;  

    }  

    

    /**

     * 发送get请求

     * @param url 请求路径

     * @param param 请求json数据

     * @return

     */

    public static String doGet(String url){

         String result = null;  

         try{  

            HttpClient client = new SSLClient();

            //用get方法发送http请求

            HttpGet get = new HttpGet(url);

            CloseableHttpResponse httpResponse = null;

            //发送get请求

            httpResponse = (CloseableHttpResponse) client.execute(get);

            try{

                //response实体

                HttpEntity entity = httpResponse.getEntity();

                if (null != entity){

                    result = EntityUtils.toString(entity,"utf-8");

                }

            }

            finally{

                httpResponse.close();

            }

        } catch (Exception e) {

            e.printStackTrace();

        }

        return result;  

    }  

    

    public static void main(String[] args) {

        JSONObject obj = new JSONObject();

        obj.element("a", 1);

//        HttpClientUtil.doPost("http://180.168.131.15/cpf/tianan_cpf/access/car/queryCarModel.mvc",obj);

        HttpClientUtil.taikangPost("http://ecuat.tk.cn/tkcoop_zz/service/proposalEntrance/proposalCreateEntrance?sign=ehaitun&comboid=1007A00901&fromId=62667",obj.toString());

    }

    

    

}