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