httpclient提交json参数的示例详解

private void httpReqUrl(List<HongGuTan> list, String url)
			throws ClientProtocolException, IOException {
		logger.info("httpclient执行新闻资讯接口开始。");
		JSONObject json = new JSONObject();
		DefaultHttpClient httpClient = new DefaultHttpClient();
		HttpPost method = new HttpPost(url);
		// 设置代理
		if (IS_NEED_PROXY.equals("1")) {
			HttpHost proxy = new HttpHost("192.168.13.19", 7777);
			httpClient.getParams().setParameter(ConnRouteParams.DEFAULT_PROXY, proxy);
		}
		if (list != null && list.size() > 0) {
			logger.info("循环处理数据列表大小list.size={}", list != null ? list.size() : 0);
			// 开始循环组装post请求参数,使用倒序进行处理
			for (int i = list.size() - 1; i >= 0; i--) {
				HongGuTan bean = list.get(i);
				if (bean == null) {
					continue;
				}
				// 验证参数
				Object[] objs = { bean.getTitle(), bean.getContent(),
						bean.getSourceUrl(), bean.getSourceFrom(),
						bean.getImgUrls() };
				if (!validateData(objs)) {
					logger.info("参数验证有误。");
					continue;
				}
				// 接收参数json列表
				JSONObject jsonParam = new JSONObject();
				jsonParam.put("chnl_id", "11");// 红谷滩新闻资讯，channelId 77
				jsonParam.put("title", bean.getTitle());// 标题
				jsonParam.put("content", bean.getContent());// 资讯内容
				jsonParam.put("source_url", bean.getSourceUrl());// 资讯源地址
				jsonParam.put("source_name", bean.getSourceFrom());// 来源网站名称
				jsonParam.put("img_urls", bean.getImgUrls());// 采用 url,url,url 的格式进行图片的返回
				StringEntity entity = new StringEntity(jsonParam.toString(),"utf-8");//解决中文乱码问题  
				entity.setContentEncoding("UTF-8");  
				entity.setContentType("application/json");  
				method.setEntity(entity);  
				//这边使用适用正常的表单提交 
//				 List<BasicNameValuePair> pairList = new ArrayList<BasicNameValuePair>();  
				//pairList.add(new BasicNameValuePair("chnl_id", "11")); 
				//pairList.add(new BasicNameValuePair("title", bean.getTitle()));// 标题  
				//pairList.add(new BasicNameValuePair("content", bean.getContent()));// 资讯内容  
				//pairList.add(new BasicNameValuePair("source_url", bean.getSourceUrl()));// 资讯源地址  
				//pairList.add(new BasicNameValuePair("source_name", bean.getSourceFrom()));// 来源网站名称  
				//pairList.add(new BasicNameValuePair("img_urls", bean.getImgUrls()));// 采用 url,url,url 的格式进行图片的返回  
				//method.setEntity(new UrlEncodedFormEntity(pairList, "utf-8")); 
				HttpResponse result = httpClient.execute(method);
				// 请求结束，返回结果
				String resData = EntityUtils.toString(result.getEntity());
				JSONObject resJson = json.parseObject(resData);
				String code = resJson.get("result_code").toString(); // 对方接口请求返回结果：0成功  1失败
				logger.info("请求返回结果集{'code':" + code + ",'desc':'" + resJson.get("result_desc").toString() + "'}");
				if (!StringUtils.isBlank(code) && code.trim().equals("0")) {// 成功
					logger.info("业务处理成功！");
				} else {
					logger.error("业务处理异常");
					Constants.dateMap.put("lastMaxId", bean.getId());
					break;
				}
			}
		}
	}

public String setMessage(String requestData) {
		String result = "";
		try {
			result = HttpClientUtils.doPost(url, method, requestData);
		} catch (ClientProtocolException e) {
			e.printStackTrace();
			throw new ValidationException(SystemError.CONNECTION_FAIL);
		} catch (IOException e) {
			e.printStackTrace();
		}
		return result;    }

package com.feeling.mc.agenda.util;
import java.io.IOException;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import net.logstash.logback.encoder.org.apache.commons.lang.StringUtils;
/**
 * 使用
 * @author liangwenbo
 *
 */
@SuppressWarnings({ "resource", "deprecation" })
public class HttpClientUtils {
	public static String doGet(String url,String params) throws ClientProtocolException, IOException {
		String response = null;
		HttpClient httpClient = new DefaultHttpClient();
		HttpGet httpGet = new HttpGet(url);
		HttpResponse httpResponse = httpClient.execute(httpGet);
		if (httpResponse.getStatusLine().getStatusCode() == 200) {
			// 请求和响应都成功了
			HttpEntity entity = httpResponse.getEntity();// 调用getEntity()方法获取到一个HttpEntity实例
			response = EntityUtils.toString(entity, "utf-8");// 用EntityUtils.toString()这个静态方法将HttpEntity转换成字符串,防止
																// //服务器返回的数据带有中文,所以在转换的时候将字符集指定成utf-8就可以了
		}
		return response;
	}
	/**
	 * localhost：8091/message
	 * @param url http:localhost：8080
	 * @param method 方法
	 * @return params 参数
	 * @throws ClientProtocolException
	 * @throws IOException
	 */
	public static String doPost(String url, String method, String params) throws ClientProtocolException, IOException {
		String response = null;
		String sendUrl = url+method;
		HttpClient httpClient = new DefaultHttpClient();
		HttpPost httpPost = new HttpPost(sendUrl);
		 if (StringUtils.isNotBlank(params)) {
			 httpPost.setEntity(new StringEntity(params, "utf-8"));
	     }
		HttpResponse httpResponse = httpClient.execute(httpPost); 
		if (httpResponse.getStatusLine().getStatusCode() == 200) {
			// 请求和响应都成功了
			HttpEntity entity = httpResponse.getEntity();// 调用getEntity()方法获取到一个HttpEntity实例
			response = EntityUtils.toString(entity, "utf-8");// 用EntityUtils.toString()这个静态方法将HttpEntity转换成字符串,防止
																// //服务器返回的数据带有中文,所以在转换的时候将字符集指定成utf-8就可以了
		}
		return response;
	}
}