AJAX_idea

JSP的添加






<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8" %>



   
   
   
   
   

   

    请选择联系人：

   
        ${li.uname}
   
   

    请输入消息内容:
<%--    请输入消息内容：
--%>
    爱理不理
    看一下就好
    十万火急
   

   

   

   
   

JSP的查询






<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8" %>



   
   
   
   
   
   







    所有用户
   
        ${Type.uname }

   

你可以用来模糊查询:

   
       
       
       
       
       
       
       
   
   
   
       
       
           
           
           
           
           
           
           
       
   
   

	消息Id	消息内容	时间	紧急程度	接收人	操作
	${li.mid}	${li.content}	${li.cretetime}	${li.rank}                 爱理不理           看一下就好                  十万火急	唐太宗                 汉武帝                 秦始皇                 成吉思汗                 武则天

controller






package com.bawei.controller;

import com.bawei.pojo.Message;
import com.bawei.pojo.User;
import com.bawei.service.MessageService;
import com.bawei.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
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.multipart.MultipartFile;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
import java.net.URLDecoder;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

@Controller
    @RequestMapping("user")
    public class UserController {
        @Autowired
        private UserService service;
        @Autowired
        private MessageService mservice;

        @RequestMapping("selectAll")
        public String selectAll(Model model) {
            System.out.print("进入查询全部方法");
            List list = service.selectAll();
            model.addAttribute("list", list);
            List list2=mservice.getMessageList();
            model.addAttribute("list2",list2);
              return "selectList";
        }
    @RequestMapping(value = "/imgUpload",method = RequestMethod.POST )
    public String imgUpload(MultipartFile  image, HttpServletRequest req, HttpServletResponse res) throws IOException {
        Map map = new HashMap<>();
        System.out.println("----- 插入图片 -------");
System.out.println(image.getBytes()+""+image.getOriginalFilename()+""+image.getBytes());
System.out.println(!image.isEmpty());
if(!image.isEmpty()){
    byte[] bytes=image.getBytes();
    return "redirect:uploadSuccess";
}else{
    return "redirect:uploadSuccess";
}
    }

    @RequestMapping(value = "login",method = RequestMethod.POST)
    @ResponseBody
    public Map login(User user,HttpSession session,Model model){
        Map map = new HashMap<>();
        try {

            System.out.print("进入了登录方法");
            user = service.login(user);
            session.setAttribute("user", user);
            int count = 1;
            map.put("count",count);
            return map;
        } catch (Exception e) {
            System.out.print("出错了");
         return map;
        }
    }

    @RequestMapping( value = "/selectOne",method = RequestMethod.GET)
    @ResponseBody
    public MapselectOne(String content)throws Exception {
        content=URLDecoder.decode(content,"utf-8");
        System.out.print(content);
        Map map=new HashMap();
        Message msg=new Message();
        List list=mservice.selectOne(content);
        map.put("list",list);
        return map;
        }

    @ResponseBody
    @RequestMapping( value = "/selectByName",method = RequestMethod.GET)
    public MapselectByName(String op,HttpSession session,HttpServletRequest request)throws Exception {
           op=URLDecoder.decode(op,"utf-8");
           System.out.print("jing re cha xun jie mian ");
Map map=new HashMap();
Map result =new LinkedHashMap();

result.put("101","爱理不理");
result.put("202","看一下就好");
result.put("303","十万火急");
        request.setAttribute("resultMap",result);
Message msg=new Message();
if(op.equals("syyh")){
List list=mservice.getMessageList();
map.put("list",list);
}else{
    String uid=op;
   List list=mservice.selectByName(Integer.parseInt(uid));
    map.put("list",list);
        }
        return map;
    }
    @RequestMapping(value = "/delete", method = RequestMethod.GET)
    @ResponseBody
    public Map delete(String mid) throws Exception {
        Map map = new HashMap<>();
        Message msg = new Message();
        msg.setMid(Integer.parseInt(mid));
        String id=mid;
         mservice.delete(Integer.parseInt(id));
         int count=1;
        map.put("count", count);
        return map;
    }
    @RequestMapping("batchDelete")
    public String batchDelete(String[] ids){
        for (String string : ids) {
            mservice.delete(Integer.parseInt(string));
        }
        return "index";
    }
      @RequestMapping("selectUserList")
      public String selectUserList(Model model) {
          System.out.print("jint ren fang fa ");
          List list = service.selectAll();
          model.addAttribute("list", list);
          return "insert";
      }
        @RequestMapping( value = "/insert",method = RequestMethod.GET)
        @ResponseBody
        public Map insert(String content,String chec ,int jinji)throws Exception {

           Map map=new HashMap<>();
           content= URLDecoder.decode(content,"utf-8");
           chec=URLDecoder.decode(chec,"utf-8");
           Message msg;
    for (String arg:chec.split(",")) {
        msg = new Message();
        msg.setContent(content);
        msg.setRank(jinji);
        msg.setU_id(Integer.parseInt(arg));
        mservice.insert(msg);
    }
     int count=1;
    map.put("count",count);
            return map;
        }
/*@RequestMapping("batchInsert")
    public String batchInsert(String[] ids){
    for (String  string : ids) {
        mservice.insert(string);
    }
}*/



    }