springMVC II

package com.liyang;import java.io.ByteArrayOutputStream;import java.io.IOException;import java.io.InputStream;import java.lang.annotation.Annotation;import java.util.Date;import java.util.HashMap;import java.util.Map;import javax.servlet.http.HttpServletRequest;import org.codehaus.jackson.map.ObjectMapper;import org.springframework.stereotype.Controller;import org.springframework.ui.Model;import org.springframework.ui.ModelMap;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.ResponseBody;import org.springframework.web.portlet.bind.annotation.RenderMapping;import org.springframework.web.servlet.ModelAndView;import com.alibaba.fastjson.JSON;import com.alibaba.fastjson.JSONObject;import com.sun.corba.se.spi.orbutil.fsm.Input;import com.sun.org.apache.regexp.internal.recompile;import com.sun.xml.internal.ws.util.StreamUtils;@Controllerpublic class HelloContorller implements Controller{       @RequestMapping(value="miss.do")       @ResponseBody       public ModelAndView handleRequest(HttpServletRequest request) throws Exception{                  ModelAndView mav = new ModelAndView("messge");                  mav.addObject("miss", "I miss you!" );                  Map<String , Object> param = ProcessHttpParamsToMap(request) ;                System.out.println("who=" + param.get("who")) ;                mav.addObject("who", param.get("who") );                  return mav;         }//跳到页面       @RequestMapping(value="say.do")       @ResponseBody       public ModelMap say(HttpServletRequest request){              ModelMap mod = new ModelMap() ;              mod.put("a", "_a") ;              mod.put("z", "_z") ;              mod.put("c", "_c") ;              mod.put("b", "_b") ;              return  mod  ;        } // 返回的是json格式       @RequestMapping(value="ask.do", produces="text/html;charset=UTF-8")       @ResponseBody       public String ask(HttpServletRequest request) throws IOException{              Map<String , Object> param = ProcessHttpParamsToMap(request) ;              try{              }catch(Exception e){                  e.printStackTrace() ;               }              return "something int [Ask] is error!" ;       }       @RequestMapping(value="hi.do", produces="text/html;charset=UTF-8")       @ResponseBody       public String hi(HttpServletRequest request) throws IOException{              Map<String , Object> param = ProcessJosnParamsToMap(request) ;              try{                  return JSONObject.toJSONString(param) ;              }catch(Exception e){                  e.printStackTrace() ;               }              return "something int [Hi] is error!" ;       }       public static byte[] readStreamToBytes(InputStream inputStream) throws IOException{                 ByteArrayOutputStream out = new ByteArrayOutputStream();                 byte[] buffer = new byte[1024];                 int len = 0;                 while ((len = inputStream.read(buffer)) != -1) {                       out.write(buffer, 0, len);                 }                 out.close();                 inputStream.close();                 return out.toByteArray();           }       private Map<String, Object> ProcessHttpParamsToMap(HttpServletRequest request){               Map<String, String[]>  params = request.getParameterMap()  ;               Map<String , Object> datas = new HashMap<String , Object>() ;               if (params == null || params.isEmpty()) {                    return datas;               }               for(Map.Entry<String , String[]> e : params.entrySet()){                       if(e.getKey().length() > 0) datas.put(e.getKey(), e.getValue()[0].trim()) ;               }               return datas;        }        private Map<String , Object> ProcessJosnParamsToMap(HttpServletRequest request) throws IOException{               InputStream inputStream = request.getInputStream() ;               String charest = request.getCharacterEncoding() ;               System.out.println(charest) ;               if(charest == null || charest.isEmpty()){                     charest = "UTF-8" ;               }               String requestStr =  new String(readStreamToBytes(inputStream) , charest) ;               System.out.println(requestStr);               ObjectMapper objectMapper = new ObjectMapper();               Map<String, Object> paramMap;               paramMap = objectMapper.readValue(requestStr, Map.class);               return  paramMap ;         }        @Override        public Class<? extends Annotation> annotationType() {            // TODO Auto-generated method stub              return null;        }        @Override        public String value() {            // TODO Auto-generated method stub               return null;        }}

messge.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"    pageEncoding="GB18030"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>Insert title here</title></head><body>          ${miss}          ${who}</body></html>