js实现的捐赠管理完整实例

2019-11-20 13:21:19

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本文实例讲述了js捐赠管理完整实现方法。分享给大家供大家参考。具体实现方法如下：

index.html页面如下：

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>js捐赠管理</title>
    <link href="css/css.css" rel="Stylesheet" type="text/css" />
    <script type="text/javascript">
        //受捐单位数组
        var listOrgs = [
            { "id": "1", "comName": "壹基金" },
            { "id": "2", "comName": "宋庆龄基金" },
            { "id": "3", "comName": "慈济基金" },
            { "id": "4", "comName": "红十字会" },
            { "id": "5", "comName": "狼图腾" }
        ];
        //给listOrgs数组对象动态添加一个匿名方法
        listOrgs.getOrgsById = function (id) {
            for (var i = 0; i < listOrgs.length; i++) {
                if (listOrgs[i].id == id) {
                    return listOrgs[i];//返回一个对象
                }
            }
        };

        //捐款数据数组
        var listData = [
            { "id": "1", "perName": "成龙", "orgId": "1", "money": "10000", "date": "2012-3-3" },
            { "id": "2", "perName": "李连杰", "orgId": "2", "money": "10000", "date": "2012-3-3" },
            { "id": "3", "perName": "陈光标", "orgId": "3", "money": "10000", "date": "2012-3-3" },
            { "id": "4", "perName": "胡锦涛", "orgId": "1", "money": "10000", "date": "2012-3-3" },
            { "id": "5", "perName": "周星池", "orgId": "2", "money": "10000", "date": "2012-3-3" },
            { "id": "6", "perName": "黎明", "orgId": "3", "money": "10000", "date": "2012-3-3" },
            { "id": "7", "perName": "狼人", "orgId": "3", "money": "10000", "date": "2012-3-3" },
            { "id": "8", "perName": "狂魔", "orgId": "3", "money": "10000", "date": "2012-3-3" },
            { "id": "9", "perName": "三疯", "orgId": "3", "money": "10000", "date": "2012-3-3" }
        ];
        //分页查询数组
        listData.fenyeQuery = function (pageNow, pageSize) {
            var res = new Array();
            //1.按pageSize为5，第1页就是listData[0]-listData[4],第2页就是listData[5]-listData[9]
            //第3页就是listData[10]-listData[14]

            var start = (pageNow - 1) * pageSize;
            var end = listData.length > (pageNow * pageSize) ? (pageNow * pageSize) : listData.length;

            for (var i = start ; i < end; i++) {
                res[res.length] = listData[i];
            }
            return res;
        };

        listData.queryByOrId = function (orid) {
            var arr = new Array();
            for (var i = 0; i < listData.length; i++) {
                if (listData[i].orgId == orid) {
                    arr[arr.length] = listData[i];
                }
            }

            return arr;
        };

        listData.idNum = listData.length;

        listData.addRec = function(rec) {
            listData.idNum++;
            var newRec = { "id": listData.idNum, "perName": rec.perName, "orgId": rec.orgId, "money": rec.money, "date": rec.date };
            listData[listData.length] = newRec;
            return newRec;
        };

        listData.updateRec = function(obj) {
            for (var i = 0; i < listData.length; i++) {
                if (listData[i].id = obj.id) {
                    listData[i] = obj;
                    break;
                }
            }
        };

        //定义一个全局的变量，检测是否取消个性
        var isCancelUpdate = false;
        //定义三个文本input控件
        var InputPerName = document.createElement("input");
        InputPerName.type = "text";

        var InputMoney = document.createElement("input");
        InputPerName.type = "text";

        var InputDate = document.createElement("input");
        InputPerName.type = "text";

        var SeleteOrg = document.createElement("select");

        listData.delRecById = function (id) {
            for (var i = 0; i < listData.length; i++) {
                if (listData[i].id == id) {
                    //删除
                    /*
                    1.将从这个ID所在的位置开始，将后面的每一个元素都往前面移动一位
                    2.最后一个元素重复了，要将其清除
                    */
                    for (var j = i; j < listData.length - 1; j++) {
                        listData[j] = listData[j + 1];
                    }
                }
            }
            listData.length = listData.length - 1;
        };

        //把文本换成input文本框
        function txtToInput(tdName, inputName) {
            tdName.setAttribute("oldValue", tdName.innerHTML);//先保存原来的内容，如果取消，就恢复
            inputName.value = tdName.innerHTML;
            tdName.appendChild(inputName);
            tdName.removeChild(tdName.firstChild);
        }

        function txtToSelect(tdName, selObj) {
            tdName.appendChild(selObj);
            tdName.removeChild(tdName.firstChild);
            selObj.value = tdName.getAttribute("orgId");
        }

        function selectorText(tdName) {
            var orid = SeleteOrg.value;
            var orgName = listOrgs.getOrgsById(orid).comName;
           // tdName.setAttribute("orgId", SeleteOrg.value);
            tdName.innerHTML = orgName;
        }

        //把input变回文本
        function InputToTxt(tdName, inputName) {
            //如果点击的是取消
            if (isCancelUpdate) {
                tdName.innerHTML = tdName.getAttribute("oldValue");
                return;
            }
            //点击确定修改
            tdName.innerHTML = inputName.value;
        }

        //把select控件变回文本
        function seleToTxt(tdName, selName) {
           // tdName.appendChild(selName);
            var orgId = SeleteOrg.value;
            //删除之前的
            tdName.innerHTML = (listOrgs.getOrgsById(orgId)).comName;
        }

        //取消修改
        function CancelUp(obj) {
            isCancelUpdate = true;//点击的是取消
            doCancel(obj);
            isCancelUpdate = false;
        }

        function doCancel(obj) {
            var trCur = obj.parentElement.parentElement;
            var tds = trCur.childNodes;
            //全部使用原始的td下面的值(保存在Attribute中)
            tds[1].innerHTML = tds[1].getAttribute("oldValue");
            tds[2].innerHTML = listOrgs.getOrgsById(tds[2].getAttribute("orgId")).comName;
            tds[3].innerHTML = tds[3].getAttribute("oldValue");
            tds[4].innerHTML = tds[4].getAttribute("oldValue");
            tds[5].innerHTML = "<a href='#' onclick='DelObj(this)' >删除</a> <a href='#' onclick='UpObj(this)'>修改</a>";
           // isCancelUpdate = false;
            //确定取消成功后就要置trCur为null
            trCur = null;
        }
        var trCur = null;

        function UpObj(obj) {
            if (trCur != null) {
                //说明有行处于编辑状态，要取消其修改
                isCancelUpdate = true;
                //取消那一行的编辑
                doCancel(trCur.childNodes[5].firstChild);//trCur.childNodes[5].firstChild,就是上一行的<a 修改>
            }

            //得到当前所在的行
            trCur = obj.parentElement.parentElement;
            var tds = trCur.childNodes;
            //捐赠人input修改
            txtToInput(tds[1], InputPerName);
            //金额
            txtToInput(tds[3], InputMoney);
            //受捐日期
            txtToInput(tds[4], InputDate);
            //下拉选择单位
            txtToSelect(tds[2], SeleteOrg);

            //修改链接变成取消
            tds[5].innerHTML = "<a href='#' onclick='doUpObj(this)' >确定</a> <a href='#' onclick='CancelUp(this)'>取消</a>";
        }

        //确定修改
        function doUpObj(obj) {
            isCancelUpdate = false;
             trCur = obj.parentElement.parentElement;
            //1.修改数组中对应的记录
            var rec = { "id": trCur.childNodes[0].innerHTML, "perName": trCur.childNodes[1].childNodes[0].value, "orgId": trCur.childNodes[2].childNodes[0].value, "money": trCur.childNodes[3].childNodes[0].value, "date": trCur.childNodes[4].childNodes[0].value };
            //调用方法来修改ListData中相应的记录
            listData.updateRec(rec);
            //2.修改表格中的记录

            InputToTxt(trCur.childNodes[1], InputPerName);
            seleToTxt(trCur.childNodes[2], SeleteOrg);
            InputToTxt(trCur.childNodes[3], InputMoney);
            InputToTxt(trCur.childNodes[4], InputDate);
            trCur.childNodes[5].innerHTML = "<a href='#' onclick='DelObj(this)' >删除</a> <a href='#' onclick='UpObj(this)'>修改</a>";

            //trCur.childNodes[2].setAttribute("orgId", SeleteOrg.value);
            //确定修改成功后就要置trCur为null
            trCur = null;
        }

//删除一行数据

        function DelObj(obj) {
            //删除数组中对应的数组
            //1.要得到选中的行
            var curTr = obj.parentElement.parentElement;
            //2.从第一个列中取到id的值
            var delId = curTr.cells[0].innerHTML;
            // window.alert(delId);
            //3.根据id删除一条记录(数组中listData)
            listData.delRecById(delId);
            //4.删除表格视图中的显示行
            curTr.parentElement.removeChild(curTr);
        }

        function LoadDataList() {
            //for (var i = 0; i < listData.length; i++) {
            //    addRow(listData[i]);
            //}
            //分页显示
            showPage();
        }

        function addRow(obj) {
            var trnew = gel("tbList").insertRow(-1);
            var tdnew = trnew.insertCell(-1);
            tdnew.innerHTML = obj.id;
            trnew.insertCell(-1).innerHTML = obj.perName;

            var trOrgName = trnew.insertCell(-1);
            trOrgName.setAttribute("orgId", obj.orgId);
            trOrgName.innerHTML = (listOrgs.getOrgsById(obj.orgId)).comName;
            trnew.insertCell(-1).innerHTML = obj.money;
            trnew.insertCell(-1).innerHTML = obj.date;
            trnew.insertCell(-1).innerHTML = "<a href='#' onclick='DelObj(this)' >删除</a> <a href='#' onclick='UpObj(this)'>修改</a>";
        }

        window.onload = function() {
            //绑定查询
            LoadOrgList(gel("selSearchOrg"));
            //绑定受捐赠单位
            LoadOrgList(gel("selAddOrg"));
            LoadOrgList(SeleteOrg);
            //绑定表格和listData
            LoadDataList();

            //给新增按钮绑定一个事件
            gel("btnAdd").onclick = function() {
                if ((!(gel("txtName").value)) || (!(gel("txtMoney").value) || (!(gel("txtDate").value)))) {
                    alert("输入不能为空");
                    return;
                }

                //1.得到输入的内容，打包成一个对象(按照listData的格式)
                var arr = { "perName": gel("txtName").value, "orgId": gel("selAddOrg").value, "money": gel("txtMoney").value, "date": gel("txtDate").value };
                //2.添加到listData数组中
                var res = listData.addRec(arr);
                //3.显示在表格中
                var trnew = gel("tbList").insertRow(-1);
                trnew.insertCell(-1).innerHTML = res.id;
                trnew.insertCell(-1).innerHTML = res.perName;

                var tdOrg = trnew.insertCell(-1);
                tdOrg.setAttribute("orgId", res.orgId);
                tdOrg.innerHTML = listOrgs.getOrgsById(res.orgId).comName;
                trnew.insertCell(-1).innerHTML = res.money;
                trnew.insertCell(-1).innerHTML = res.date;
                trnew.insertCell(-1).innerHTML = "<a href='#' onclick='DelObj(this)' >删除</a> <a href='#' onclick='UpObj(this)'>修改</a>";
            };

            //给查询按钮绑定事件
            gel("btnSearch").onclick = function () {
                if (gel("selSearchOrg").value == -1) {
                    return;
                }

                //1.获取要查询的受捐赠单位的orgid
                var orgId = gel("selSearchOrg").value;
                //2.在ListData数组中定义一个根据orgid查询的方法,并在这里调用
                var arrRes = listData.queryByOrId(orgId);
                //3.将旧的表格数据移除显示,一定要从下到上清空显示
                var trs = gel("tbList").rows;

                for (var j = trs.length-1; j>0; j--) {
                    gel("tbList").deleteRow(j);
                }
                //4.显示新的数据arrRes
                for (var i = 0; i < arrRes.length; i++) {
                    addRow(arrRes[i]);
                }
            };

            //给上一页绑定事件
            gel("btnprePage").onclick = function() {
               if (pageNow > 1) {
                   pageNow--;
                   showPage();
               } else {
                   alert("已经是第一页!")
               }
            };
            //给下一页绑定事件
            gel("btnnextPage").onclick = function () {
                if(pageNow<listData.length/pageSize)
                {
                    pageNow++;
                    showPage();
                }else
                {
                    alert("已经是最后一页!");
                }
            };
        };
        var pageNow = 1;
        var pageSize = 5;
        function showPage() {
            var trs = gel("tbList").rows;

            for (var j = trs.length - 1; j > 0; j--) {
                gel("tbList").deleteRow(j);
            }

            //1.根据pageNow和pageSize返回一个数组
            var res = listData.fenyeQuery(pageNow, pageSize);
            for (var i = 0; i < res.length; i++) {
                addRow(res[i]);
            }
        }
    </script>
</head>
<body>
    <div id="container">
        <h1>捐赠管理</h1>
        <div class="search">
            受捐单位
            <select id="selSearchOrg">
                <option value="-1">--请选择--</option>
            </select>
            <input type="button" id="btnSearch" value="查询" class="btn" /> <input type="button" value="上一页" class="btn" id="btnprePage" /> <input type="button" value="下一页" class="btn" id="btnnextPage" /><span id="pageBar"></span>
        </div>
        <div class="search">
            捐赠人：<input type="text" id="txtName" class="inputShort" size="8" />
            受捐单位：
            <select id="selAddOrg">
            </select>
            金额：<input type="text" id="txtMoney" class="inputShort" size="8" />
            受捐日期：<input type="text" id="txtDate" class="inputShort" size="10" />
            <input type="button" id="btnAdd" value="新增" class="btn" />
        </div>
        <table id="tbList" class="tbList" cellspacing="0" cellpadding="0">
            <tr class="th">
                <td>序号</td>
                <td>捐赠人</td>
                <td>受捐单位</td>
                <td>金额</td>
                <td>受捐日期</td>
                <td>操作</td>
            </tr>
        </table>
    </div>
</body>
</html>

css.css如下：

复制代码代码如下:

* {  
      margin: 0px;  
      padding: 0px;  
  }  
  
  body {  
      width: 900px;  
      margin: 0px auto;  
      padding-top: 20px;  
  }  
  
  h1 {  
      padding: 15px;  
      text-align: center;  
  }  
  
  #container {  
      width: 900px;  
      height: auto;  
  }  
  
  .header, .search {  
      width: 900px;  
      height: 30px;  
      line-height: 30px;  
      border: 1px solid #0094ff;  
      margin-top: 3px;  
      padding: 0px 5px;  
  }  
  
  .tbList {  
      width: 912px;  
      height: auto;  
  }  
  
      .tbList th {  
          border: 1px solid #000;  
          background: #0094ff;  
          height: 30px;  
          font-weight: bold;  
          line-height: 30px;  
          color: #fff;  
      }  
  
  .inputShort {  
      width: 100px;  
  }  
  
  .btn {  
      width: 70px;  
      height: 25px;  
      line-height: 25px;  
      font-weight: bold;  
      text-align: center;  
  }  
  
  td {  
      border: 1px solid;  
      height: 25px;  
      text-indent: 1em;  
      border-collapse: collapse;  
  }