java项目之间的通信

基于apache httpClient4.5的post请求
1.发送请求方

package com.fh.util;

import java.io.IOException;
import java.net.SocketTimeoutException;
import java.util.List;
import net.sf.json.JSONObject;

import org.apache.commons.httpclient.ConnectTimeoutException;
import org.apache.http.HttpEntity;
import org.apache.http.HttpStatus;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

public class HttpRequest2{
	
	static HttpRequest2 HttpRequest=new HttpRequest2();
	public static Logger logger = Logger.getLogger(HttpRequest.getClass());
	
	/**
	 * post请求(apache  httpClient4.5)
	 * 
	 * @param method：请求方法
	 * @param date：请求数据
	 */
	public static JSONObject doPost(String method, List<JSONObject> date) {
		
		 CloseableHttpClient client = HttpClients.createDefault();
	     CloseableHttpResponse res = null;
	    String url = "http://192.168.100.20:8089/E04092/" + method;
	    HttpPost post = new HttpPost(url);
	    JSONObject response = JSONObject.fromObject("{"+'"'+"msg"+'"'+':'+'"'+"error"+'"'+"}");;
	    try {
	        StringEntity s = new StringEntity(date.toString(),"UTF-8");
	        //s.setContentEncoding("UTF-8");       
	        s.setContentType("application/json");
	        post.setEntity(s);
	        post.addHeader("content-type", "text/xml");
	        RequestConfig config=RequestConfig.custom()
	        					.setConnectTimeout(8000)			// 连接主机服务超时时间 
	        					.setConnectionRequestTimeout(8000)  // 请求超时时间  
	        					.setSocketTimeout(30000)     		// 数据读取超时时间  
	        					.build();
	        post.setConfig(config);
	
	        res = client.execute(post);     // client对象执行post请求,并返回响应参数对象
	//      System.out.println("res.getStatusLine().getStatusCode():"+res.getStatusLine().getStatusCode());
	//      System.out.println("HttpStatus.SC_OK:"+HttpStatus.SC_OK);
	        if (res.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
	        	
	            HttpEntity entity = res.getEntity();
	            String result = EntityUtils.toString(entity,"UTF-8");   // 同一个httpclient中只能有一个获取entity的方法,不然会出错
	            response = JSONObject.fromObject(result);
	            
	            }
	        } catch (ConnectTimeoutException e) {
	        	
	    		e.printStackTrace();
	    		logger.info("用户请求连接超时");
	    		System.out.println("请求连接超时：" + e.getMessage());
	    		
	    	} catch (SocketTimeoutException e) {
	    		
	    		e.printStackTrace();
	    		logger.info("用户ID为"+date.get(0).getString("JS_USER")+"等待服务器响应超时，提交给服务器处理数据为"+date.get(0).getString("SP_CPRICE")+"元产品"+date.size()+"件");
	    		System.out.println("服务器响应超时：" + e.getMessage());
	    		
	    	}  catch (Exception e) {
	        	
	        	e.printStackTrace();
	            throw new RuntimeException(e);
	            
	        }finally {
	            // 关闭资源
	            if (null != res) {
	                try {
	                	res.close();
	                } catch (IOException e) {
	                    e.printStackTrace();
	                }
	            }
	            if (null != client) {
	                try {
	                	client.close();
	                } catch (IOException e) {
	                    e.printStackTrace();
	                }
	            }
	        }
	        return response;
	    }

}

2.处理请求方

/**
	 * 接收传递的json参数解析(寄售商品的信息)
	 * 
	 * @param request
	 * @param response
	 * @return
	 * @data:日期：2016年9月9日10:50:52
	 */
    @ResponseBody
	@RequestMapping(value="getJson",produces = "application/json;charset=UTF-8")
	public String getJson(HttpServletRequest request,HttpServletResponse response) {
    	
	    StringBuffer json = new StringBuffer();
	    String line = null;
	    String info="{"+'"'+"msg"+'"'+':'+'"'+"error"+'"'+"}"; 
	    try {
	        BufferedReader reader = request.getReader();
	        while ((line = reader.readLine()) != null) {
	            System.out.println("line:" + line);
	            json.append(line);
	        }
	    } catch (Exception e) {
	        
	        e.printStackTrace();

	    }
	    System.out.println("接收参数完毕:"+json);
	    if(!json.toString().equals("") && json.toString()!=null){
	    	
	    	try {
	    		
		    	info=auctionService.save_Warehousing(json.toString());
				
			} catch (Exception e) {
				
				e.printStackTrace();
			}
	    	
	    }
	   
	    return info;
	}

/**
   	 * 寄售商品入库
   	 * 
   	 * @param
   	 * @throws Exception
   	 */
   	public String save_Warehousing(String info) throws Exception {
   		
   		String str = "";
   		JSONArray getJsonArray=JSONArray.fromObject(info);//将结果转换成JSONArray对象的形式  
   		JSONObject getJsonObj=new JSONObject();    //创建josn对象
		for(int i=0;i<getJsonArray.size();i++){    //循环遍历josn数组
			
			getJsonObj=getJsonArray.getJSONObject(i);
			
			int SP_TYPE=getJsonObj.getInt("SP_TYPE");
			System.out.println("寄售商品类型："+SP_TYPE);
			
			if(SP_TYPE==1){   //寄售 的是普通商品
	   			
	   			str=Eighteen(getJsonObj);
	   			
	   		}else if(SP_TYPE==2){    //寄售 的是499商品
	   			
	   			str=save_ninety_nine(getJsonObj);
	   			
	   		}
			
		}
		return str;
   		
   	}