提出問題：如何利用原生的js實現基本的增刪改查功能？ ？ ？
解決問題
假如你已經對JS有一定基礎
假如你對bootstrap有一定基礎
下面是具體的例子，
包含兩個文件（index.jsp 和index.js）
<%@ page language="java" contentType="text/html; charset=UTF-8"pageEncoding="UTF-8"%> <!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"> <!-- Bootstrap --> <link href="resource/bootstrap/css/bootstrap.min.css" rel="stylesheet" media="screen"> <link href="resource/bootstrap/css/bootstrap-theme.min.css" rel="stylesheet" media="screen"> <title>JS框架學習</title> </head> <body onload="loadUserDatas()"> <div> <table id="table"> <caption><h2>練習一</h2></caption> <caption> <button type="button" id="user_add" data-toggle="modal" data-target="#myModal" onclick="optionUserData(this);">新增</button> <button type="button" id="user_delete" onclick="optionUserData(this);">刪除</button> <button type="button" id="user_edit" data-toggle="modal" data-target="#myModal" onclick="optionUserData(this);">編輯</button> <button type="button" id="user_find" onclick="optionUserData(this);">查詢</button> <input type="text" id="s_code" placeholder="按工號查詢"> <input type="text" id="s_userName" placeholder="按姓名查詢"> <input type="text" id="s_all" placeholder="全文搜索"> </caption> <thead> <tr> <th>序號</th> <th>工號</th> <th>姓名</th> <th>性別</th> <th>密碼</th> <th>年齡</th> <th>出生日期</th> </tr> </thead> <tbody id="tbody"> </tbody> </table> <!-- 模態框（Modal） --> <div id="myModal" role="dialog" > <div> <div> <div> <button type="button" data-dismiss="modal" aria-hidden="true"> × </button> <h4 id="myModalLabel"> 新增用戶</h4> </div> <div id="modal-body"> <label for="name">工號:</label> <input type="text" id="m_code" placeholder="請輸入工號"> <label for="name">姓名:</label> <input type="text" id="m_userName" placeholder="請輸入姓名"> <label for="name">性別:</label> <input type="text" id="m_sex" placeholder="請輸入性別"> <label for="name">密碼:</label> <input type="text" id="m_passWord" placeholder="請輸入密碼"> <label for="name">年齡:</label> <input type="text" id="m_age" placeholder="請輸入年齡"> <label for="name">出生日期:</label> <input type="text" id="m_birthday" placeholder="請輸入出生日期"> </div> <div> <button type="button" data-dismiss="modal">保存</button> <button type="button">提交更改</button> </div> </div><!-- /.modal-content --> </div><!-- /.modal --> </div> <!-- 這裡需要引入相關的js，很重要，請記住--> <script type="text/javascript" src="resource/jquery/jquery.js"></script> <script type="text/javascript" src="resource/bootstrap/js/bootstrap.min.js"></script> <script type="text/javascript" src="index.js"></script> </body> </html> 複製代碼複製代碼//存放所有用戶var users = users || {}; //操作類型var operateType = ""; //存放搜索對象var searchUsers = searchUsers || {}; //用戶構造方法var User = { Create:function(code,userName,sex,passWord,age,birthday){ this.code = code; this.userName = userName; this.sex = sex; this.passWord = passWord; this.age = age; this.birthday = birthday; }, //添加用戶addUserData:function(){ if(this.code != ""){ users[this.code] = this; } }, //刪除用戶deleteUserData:function (){ for(var i in users){ if(this.code == users[i].code){ delete users[i]; } } }, //編輯用戶editUserData:function(){ for(var i in users){ if(this.code == users[i].code){ users[i].userName = this.userName; users[i].sex = this.sex; users[i].passWord = this.passWord; users[i].birthday = this.birthday; users[i].age = this.age; } } }, //查找用戶findUserData:function(data){ for(var i in users){ if(data.code.indexOf(users[i].code) >= 0 || data.userName.indexOf(users[i].userName) >= 0){ searchUsers[users[i].code] = users[i]; refreshDatas(searchUsers); } } } }; function New(aClass,aParams){ function new_(){ aClass.Create.apply(this,aParams); } new_.prototype = aClass; return new new_(); } //bootstrap模態框事件$('#myModal').on('hide.bs.modal', function () { // 執行一些動作... var inputElements = this.getElementsByTagName("input"); var userArr = []; for(var i=0;i<inputElements.length;i++){ userArr[i] = inputElements[i].value; } var user = New(User,userArr); //添加操作if(operateType == "add"){ user.addUserData(); refreshDatas(users); //編輯操作}else if(operateType == "edit"){ user.editUserData(); refreshDatas(users); } }); /** * 首次加載頁面執行方法*/ function loadUserDatas(){ var userArray = initUserDatas(); addRowData(userArray); refreshDatas(users); } /** * 初始化用戶數據*/ function initUserDatas(){ var initUser1 = New(User,["1001","小蘭","女","1234","13","1991-1-1"]); var initUser2 = New(User,["1002","小毅","男","1234","13","1991-1-1"]); var initUser3 = New(User,["1003","蘭花","女","1234","13","1991-1-1"]); var initUser4 = New(User,["1004","蘭兒","女","1234","13","1991-1-1"]); users[initUser1.code] = initUser1; users[initUser2.code] = initUser2; users[initUser3.code] = initUser3; users[initUser4.code] = initUser4; return users; } /** * 往表格添加一行html數據*/ function addRowData(datas){ var tbodyElement = document.getElementById("tbody"); var html = ""; var color = "warning"; var flag = true; for(var i in datas){ if(flag){ color = "info"; }else{ color = "warning"; } html = html + "<tr class='"+ color +"'><td style='width:30px;'><input type='checkbox'></td><td id='code'>" + datas[i].code +"</td><td id='userName'>" + datas[i].userName +"</td><td id='sex'>" + datas[i].sex +"</td><td id='passWord'>" + datas[i].passWord +"</td><td id='age'>" + datas[i].age +"</td><td id='birthday'>" + datas[i].birthday +"</td>" +"</tr>"; flag = !flag;//顏色轉換} tbodyElement.innerHTML = html; } /** * 刷新用戶數據*/ function refreshDatas(datas){ addRowData(datas); }; /** * 收集一行數據*/ function collectionRowData(param){ var tdElement = param.getElementsByTagName("td"); var userArr = []; for(var i=1;i<tdElement.length;i++){ var temp = tdElement[i].textContent; userArr[i-1] = temp; } var user = New(User,userArr); return user; } /** * 用戶操作方法*/ function optionUserData(param){ //獲得操作類別var optionType = param.getAttribute("id"); if(optionType == "user_add"){ operateType = "add"; }else if(optionType == "user_delete"){ var checkRowData = isCheckedData(); var user = collectionRowData(checkRowData); user.deleteUserData(); refreshDatas(users); }else if(optionType == "user_edit"){ operateType = "edit"; var checkRowData = isCheckedData(); var user = collectionRowData(checkRowData); var modal_body = document.getElementById("modal-body"); var inputElements= modal_body.getElementsByTagName("input"); for(var i=0;i<inputElements.length;i++){ var temp = inputElements[i].id.substring(2,inputElements[i].id.length) inputElements[i].value = user[temp]; } }else if(optionType == "user_find"){ var s_code = document.getElementById("s_code").value; var s_userName = document.getElementById("s_userName").value; var s_all= document.getElementById("s_all").value; //搜索數據var s_data = s_data || {}; s_data.code = s_code; s_data.userName = s_userName; s_data.all = s_all; var user = New(User,[]); user.findUserData(s_data); }else{ } } /** * 是否選中數據,返回選中數據的行*/ function isCheckedData(){ var tbodyElement =document.getElementById("tbody"); var trElements = tbodyElement.getElementsByTagName("tr"); var flag = false; for(var i=0;i<trElements.length;i++){ var inputElement = trElements[i].getElementsByTagName("input")[0]; if(inputElement.checked){ flag = true; return trElements[i]; } } if(!flag){ alert("請選擇一條記錄！"); $('#myModal').unbind("on"); } }效果圖：
如果大家還想深入學習，可以點擊這裡進行學習，再為大家附兩個精彩的專題：Bootstrap學習教程Bootstrap實戰教程
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持武林網。