http 服务

今天把一个功能模块做成了http服务，这还是第一次写http服务，纪录下来。

 package com.chuntent.itemsearch;

 import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.OutputStream;
 import java.net.InetSocketAddress;
 import java.net.URI;
 import java.net.URLDecoder;

 import net.sf.json.JSONArray;
 import net.sf.json.JSONObject;

 import com.chuntent.tool.StringTool;
 import com.sun.net.httpserver.HttpExchange;
 import com.sun.net.httpserver.HttpHandler;
 import com.sun.net.httpserver.HttpServer;
 import com.sun.net.httpserver.spi.HttpServerProvider;

 public class SearchHttpServer {
     public static SearchEngine engine = new SearchEngine();
     //启动服务，监听来自客户端的请求
     public static void httpserverService() throws IOException {
         engine.initFromSQL();
         HttpServerProvider provider = HttpServerProvider.provider();
         HttpServer httpserver =provider.createHttpServer(new InetSocketAddress(8089), 100);//监听端口6666,能同时接 受100个请求
         httpserver.createContext("/searchserver", new MyHttpHandler());
         httpserver.setExecutor(null);
         httpserver.start();
         System.out.println("server started");
     }
     //Http请求处理类
     static class MyHttpHandler implements HttpHandler {
         public void handle(HttpExchange httpExchange) throws IOException {
             String method = httpExchange.getRequestMethod();
             //响应信息
             String responseMsg = "fail";
             //传入参数
             StringBuilder sb = new StringBuilder();
             //get方法
             if (method.equals("GET")) {
                 URI uri = httpExchange.getRequestURI();
                 sb.append(uri.getQuery());
             } else if (method.equals("POST")){

                 InputStream in = httpExchange.getRequestBody(); // 获得输入流
                 BufferedReader reader = new BufferedReader(
                         new InputStreamReader(in));
                 String temp = null;
                 while ((temp = reader.readLine()) != null) {
                     sb.append(temp);
                 }
             }
             else {

             }
             String [] para = StringTool.split(URLDecoder.decode(sb.toString() , "utf-8"), "&", false);
             String query = "";
             int type = -1;
             int sortMethod = 1;
             int pageIndex = 1;
             int pageSize = 32;
             double creditMin ,creditMax , priceMin ,priceMax ;
             creditMin = creditMax = priceMin = priceMax = -1 ;
             boolean suc = true;
             for(String line : para){
                 String [] array = line.split("=");
                 if(array.length < 2)
                     suc = false;
                 if(array[0].equals("query"))
                     query = array[1];
                 else if(array[0].equals("type"))
                     type = Integer.parseInt(array[1]);
                 else if(array[0].equals("sortMethod"))
                     sortMethod = Integer.parseInt(array[1]);
                 else if(array[0].equals("creditMin"))
                     creditMin = Double.parseDouble(array[1]);
                 else if(array[0].equals("creditMax"))
                     creditMax = Double.parseDouble(array[1]);
                 else if(array[0].equals("priceMin"))
                     priceMin = Double.parseDouble(array[1]);
                 else if(array[0].equals("priceMax"))
                     priceMax = Double.parseDouble(array[1]);
                 else if(array[0].equals("pageIndex"))
                     pageIndex = Integer.parseInt(array[1]);
                 else if(array[0].equals("pageSize"))
                     pageSize = Integer.parseInt(array[1]);

             }
             if(suc){
                 long current = System.currentTimeMillis();
                 //creditMin, double creditMax, double priceMin, double priceMax
                 String result = engine.search(query, sortMethod , type , creditMin ,creditMax , priceMin ,priceMax , pageIndex , pageSize);
                 long duration = System.currentTimeMillis() - current;

                 JSONObject jobj = JSONObject.fromObject(result);
                 jobj.put("time", duration);
                 responseMsg = jobj.toString();
             }
             else{
                 System.out.println("para error !");
             }
             httpExchange.sendResponseHeaders(200, responseMsg.getBytes().length); //设置响应头属性及响应信息的长度
             OutputStream out = httpExchange.getResponseBody();  //获得输出流
             out.write(responseMsg.getBytes());
             out.flush();
             httpExchange.close();                               

         }
     }
     public static void main(String[] args) throws IOException {
         httpserverService();
     }
 }