zoukankan      html  css  js  c++  java
  • json

    js 将JSON字符串传到springmvc后台,后台将字符串转为对象,取到值。

    <script>
        function deleteHouse(id) {
            var obj = {};
            obj.id = id;
            var id = JSON.stringify(obj)
            $.ajax({
                type: "POST",
                url: "/house/delete",
                contentType: "application/json;charset=utf-8",
                data: id,
                success: function (data) {
                    alert(data);
                    window.location.href = ("/house/guanli");
                }
            });
        }
    
        function updateHouse(id) {
            var houseId = document.getElementById("hId");
            houseId.value = id;
            var form = document.getElementById("xform");
            form.submit();
        }
    
        function form(pageNum) {
            var page = document.getElementById("pageNum");
            page.value = pageNum;
            var form = document.getElementById("gform");
            form.submit();
        }
    
    </script>
    

      

     

     1  @RequestMapping("/delete")
     2     @ResponseBody
     3     public String delete(@RequestBody String id) {
     4         Gson gson=new Gson();
     5         HashMap<String,Double> myJson=new HashMap<>();
     6         myJson=gson.fromJson(id, HashMap.class);
     7         double hId=myJson.get("id");
     8         houseService.delete((int)hId);
     9         return "success";
    10     }
    <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3c.org/TR/1999/REC-html401-19991224/loose.dtd">
    <!-- saved from url=(0050)http://localhost:8080/HouseRent/manage!list.action -->
    <HTML xmlns="http://www.w3.org/1999/xhtml">
    <HEAD>
        <TITLE>布谷租房 - 用户管理</TITLE>
        <META content="text/html; charset=utf-8" http-equiv=Content-Type>
        <LINK rel=stylesheet type=text/css href="../css/style.css">
        <META name=GENERATOR>
        <script src="https://cdn.staticfile.org/jquery/1.10.2/jquery.min.js"></script>
    </HEAD>
    <BODY>
    <DIV id=header class=wrap>
        <DIV id=logo><IMG src="../images/logo.gif"></DIV>
        <DIV class=search><LABEL class="ui-green searchs"><a href="/house/add" title="">发布房屋信息</a></LABEL>
            <LABEL class=ui-green><INPUT onclick='document.location="index.jsp"' value="退       出" type=button name=search></LABEL>
        </DIV>
    </DIV>
    <DIV class="main wrap">
        <DIV id=houseArea>
    
            <TABLE class=house-list>
                <TBODY>
                <TR>
                    <TD>图片</TD>
                    <TD>
                    <TD><A href="details.jsp" target="_blank">房名</A></TD>
                    <TD>大小</TD>
                    <TD>地址</TD>
                    <TD class=house-type><LABEL class=ui-green>修 改</LABEL></TD>
                    <TD class=house-price><LABEL class=ui-green>删 除</LABEL></TD>
                </TR>
                <c:forEach items="${pageInfo.list}" var="house">
                    <form id=xform method=post action=/house/update>
                        <input type="hidden" id="hId" name="houseId">
                        <TR>
                            <TD class=house-thumb><SPAN><A href="details.jsp" target="_blank"><img
                                    src="/house/images?imgName=${house.HImg}" width="100" height="75" alt=""></A></SPAN>
                            </TD>
                            <TD>
                            <TD><A href="details.jsp" target="_blank">${house.HName}</A></TD>
                            <TD>${house.HRect}</TD>
                            <TD>${house.HLoc1} </TD>
                            <TD class=house-type><LABEL class=ui-green><INPUT value="修    改"
                                                                              onclick=updateHouse(${house.HId}) type=button
                                                                              name=search></LABEL></TD>
                            <TD class=house-price><LABEL class=ui-green><INPUT value="删    除"
                                                                               onclick=deleteHouse(${house.HId})
                                                                               type=button></LABEL></TD>
                        </TR>
                    </form>
                </c:forEach>
                </TBODY>
            </TABLE>
            <form id=gform method=post action=/house/guanli>
                <input type="hidden" id="pageNum" name="pageNum">
                <DIV class=pager>
                    <UL>
                        <LI class=current><A href="javascript:void(0)" onclick="form(${pageInfo.firstPage})">首页</A></LI>
                        <LI><A href="javascript:void(0)"
                               onclick="form(${pageInfo.hasPreviousPage?pageInfo.prePage:pageInfo.pageNum})">上一页</A></LI>
                        <LI><A href="javascript:void(0)"
                               onclick="form(${pageInfo.hasNextPage?pageInfo.nextPage:pageInfo.pageNum})">下一页</A></LI>
                        <LI><A href="javascript:void(0)" onclick="form(${pageInfo.lastPage})">末页</A></LI>
                    </UL>
                    <SPAN
                            class=total>${pageInfo.pageNum}/${pageInfo.pages}页</SPAN></DIV>
            </form>
        </DIV>
    </DIV>
    </DIV>
    
    
    <DIV id=footer class=wrap>
        <DL>
            <DT>布谷租房 © 2010 布谷租房 京ICP证1000001号</DT>
            <DD>关于我们 · 联系方式 · 意见反馈 · 帮助中心</DD>
        </DL>
    </DIV>
    </BODY>
    <script>
        function deleteHouse(id) {
            var obj = {};
            obj.id = id;
            var id = JSON.stringify(obj)
            $.ajax({
                type: "POST",
                url: "/house/delete",
                contentType: "application/json;charset=utf-8",
                data: id,
                success: function (data) {
                    alert(data);
                    window.location.href = ("/house/guanli");
                }
            });
        }
    
        function updateHouse(id) {
            var houseId = document.getElementById("hId");
            houseId.value = id;
            var form = document.getElementById("xform");
            form.submit();
        }
    
        function form(pageNum) {
            var page = document.getElementById("pageNum");
            page.value = pageNum;
            var form = document.getElementById("gform");
            form.submit();
        }
    
    </script>
    </HTML>
    

      

      1 package com.etc.controller;
      2 
      3 import com.etc.Vo.HouseSearchVO;
      4 import com.etc.Vo.HouseVO;
      5 import com.etc.common.Constant;
      6 import com.etc.converter.HouseConverter;
      7 import com.etc.entity.House;
      8 import com.etc.entity.HouseSearch;
      9 import com.etc.entity.User;
     10 import com.etc.servise.HouseService;
     11 import com.github.pagehelper.PageHelper;
     12 import com.github.pagehelper.PageInfo;
     13 import com.google.gson.Gson;
     14 import org.apache.commons.io.IOUtils;
     15 import org.springframework.beans.factory.annotation.Autowired;
     16 import org.springframework.stereotype.Controller;
     17 import org.springframework.ui.Model;
     18 import org.springframework.util.StringUtils;
     19 import org.springframework.web.bind.annotation.ModelAttribute;
     20 import org.springframework.web.bind.annotation.RequestBody;
     21 import org.springframework.web.bind.annotation.RequestMapping;
     22 import org.springframework.web.bind.annotation.ResponseBody;
     23 
     24 import javax.servlet.http.HttpServletResponse;
     25 import javax.servlet.http.HttpSession;
     26 import java.io.File;
     27 import java.io.FileInputStream;
     28 import java.io.IOException;
     29 import java.util.HashMap;
     30 import java.util.List;
     31 
     32 @Controller
     33 @RequestMapping("/house")
     34 public class HouseController {
     35 
     36     public static final String UPLOAD_DIR = "D:\images\";
     37 
     38     @RequestMapping("/images")
     39     public String images(String imgName, HttpServletResponse response) throws IOException {
     40         //将图片的输入流,复制到response的输出流中,
     41         IOUtils.copy(new FileInputStream(UPLOAD_DIR+imgName),response.getOutputStream());
     42         return null;
     43     }
     44 
     45 
     46     @Autowired
     47     private HouseService houseService;
     48 
     49     @RequestMapping("/add")
     50     public String add(HouseVO houseVO, HttpSession session) throws IOException {
     51         //获取session中的user对象
     52         User user = (User) session.getAttribute("user");
     53         //拿到user对象的id
     54         int userId = user.getUserId();
     55         //设置文件上传的路径
     56         houseVO.getHImg().transferTo(new File(UPLOAD_DIR + houseVO.getHImg().getOriginalFilename()));
     57         //建立house对象
     58         House house = HouseConverter.convert(houseVO, houseVO.getHImg().getOriginalFilename(), userId);
     59         //调用添加方法
     60         houseService.add(house);
     61         return "list";
     62     }
     63 
     64     @RequestMapping("/serach")
     65     public String serach(@ModelAttribute("vo") HouseSearchVO houseSearchVO, Model model, Integer pageNum) {
     66 
     67         HouseSearch houseSearch = getHouseSearch(houseSearchVO);
     68 
     69         if (pageNum == null) {
     70             pageNum = 1;
     71         }
     72 
     73         PageHelper.startPage(pageNum, Constant.PAGE_SIZE);
     74         List<House> serach = houseService.serach(houseSearch);
     75         PageInfo<House> pageInfo = new PageInfo<>(serach);
     76 
     77         model.addAttribute("pageInfo", pageInfo);
     78         return "list";
     79     }
     80 
     81     private HouseSearch getHouseSearch(HouseSearchVO houseSearchVO) {
     82         HouseSearch houseSearch = new HouseSearch();
     83         if (!StringUtils.isEmpty(houseSearchVO.getHouseName())) {
     84             houseSearch.setHouseName(houseSearchVO.getHouseName());
     85         }
     86         if (!StringUtils.isEmpty(houseSearchVO.getFloorage())) {
     87             String[] split = houseSearchVO.getFloorage().split("-");
     88             houseSearch.setMinRect(Double.valueOf(split[0]));
     89             houseSearch.setMaxRect(Double.valueOf(split[1]));
     90         }
     91         return houseSearch;
     92     }
     93 
     94     @RequestMapping("/guanli")
     95     public String guanli(Model model, Integer pageNum) {
     96         if (pageNum == null) {
     97             pageNum = 1;
     98         }
     99         PageHelper.startPage(pageNum, Constant.PAGE_SIZE);
    100         List<House> houseList = houseService.serachAll();
    101         PageInfo<House> pageInfo = new PageInfo<>(houseList);
    102 
    103         model.addAttribute("pageInfo", pageInfo);
    104         return "guanli";
    105     }
    106 
    107     @RequestMapping("/delete")
    108     @ResponseBody
    109     public String delete(@RequestBody String id) {
    110         Gson gson=new Gson();
    111         HashMap<String,Double> myJson=new HashMap<>();
    112         myJson=gson.fromJson(id, HashMap.class);
    113         double hId=myJson.get("id");
    114         houseService.delete((int)hId);
    115         return "success";
    116     }
    117 
    118     @RequestMapping("/detalis")
    119     public String detalis(Integer houseId,Model model) {
    120         House house = houseService.getById(houseId);
    121         model.addAttribute("house", house);
    122         return "details";
    123     }
    124 
    125 
    126     @RequestMapping("/update")
    127     public String update(Integer houseId,Model model) {
    128         House house = houseService.getById(houseId);
    129         model.addAttribute("house", house);
    130         return "update";
    131     }
    132 
    133     @RequestMapping("/updateHouse")
    134     public String updateHouse(House house) {
    135         houseService.update(house);
    136         return "redirect:/house/guanli";
    137     }
    138 }
    HouseController.java
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  • 原文地址:https://www.cnblogs.com/LiuOOP/p/11265042.html
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