HTTPPOST 发送JSON格式参数

package cn.jiankang51.hsps.svc.app.chat;

import java.io.IOException;

import java.util.ArrayList;

import java.util.List;

import java.util.Map.Entry;

import java.util.Set;

import org.apache.commons.lang.exception.ExceptionUtils;

import org.apache.http.HttpResponse;

import org.apache.http.HttpStatus;

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.impl.client.DefaultHttpClient;

import org.apache.http.message.BasicNameValuePair;

import org.apache.http.protocol.HTTP;

import org.apache.http.util.EntityUtils;

import org.apache.log4j.Logger;

import cn.jiankang51.hsps.pay.util.Sha1Util;

import net.sf.json.JSONObject;

/**

 *

 * ChatHttpClientUtils

 * 与融云的http通信工具类

 * 1.post请求

 * 2.get请求

 * AL

 * 2015年5月15日 上午9:31:23

 *

 * @version 1.0.0

 *

 */

public class ChatHttpClientUtils

{

    public static final String APP_KEY = "pwe86ga5eljj6";

    

    public static final String APP_SECRET = "eEv9vNiS1y5Qrh";

    

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

    

    public static void wrapRequestHeader(HttpPost post)

    {

        String nonceStr = Sha1Util.getNonceStr();

        String timeStamp = Sha1Util.getTimeStamp();

        String signature = Sha1Util.getSha1(APP_SECRET + nonceStr + timeStamp);

        post.setHeader("App-Key", APP_KEY);

        post.setHeader("Nonce", nonceStr);

        post.setHeader("Timestamp", timeStamp);

        post.setHeader("Signature", signature);

        /*Set<Entry<String, String>> entrySet = reqJson.entrySet();

        //设置参数

        for(Entry<String, String> entry : entrySet){

            post.setParameter(entry.getKey(), entry.getValue());

        }*/

    }

    

    /**

     * 调用 API

     * @param parameters

     * @return

     */

    @SuppressWarnings("unchecked")

    public static String post(JSONObject reqJson, String uri)

    {

        String body = null;

        HttpPost method = new HttpPost(uri);

        HttpClient httpClient = new DefaultHttpClient();

        logger.info("json:" + reqJson.toString());

        try

        {

            wrapRequestHeader(method);

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

            //建立一个NameValuePair数组，用于存储欲传送的参数  

            Set<Entry<String, String>> set = reqJson.entrySet();

            for(Entry<String, String> entry : set){

                params.add(new BasicNameValuePair(entry.getKey(),entry.getValue() ));

            }

            //添加参数  

            method.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));

            //设置编码  

            HttpResponse response = httpClient.execute(method);

            int statusCode = response.getStatusLine().getStatusCode();

            logger.info("statusCode:" + statusCode);

            if (statusCode != HttpStatus.SC_OK)

            {

                logger.error("Method failed:" + response.getStatusLine());

            }

            

            //Read the response body

            body = EntityUtils.toString(response.getEntity());

            

        }

        catch (IOException e)

        {

            //发生网络异常

            logger.error("exception occurred!\n" + ExceptionUtils.getFullStackTrace(e));

            //网络错误

        }

        return body;

    }

    

    public static void main(String[] args)

    {

        // System.out.println(Sha1Util.getSha1("eEv9vNiS1y5Qrh"+"910655241"+"1431662048"));

        JSONObject reqJson = new JSONObject();

        reqJson.put("userId", "0034");

        System.out.println(post(reqJson, "https://api.cn.rong.io/user/getToken.json"));

    }

}