Implement dynamic search display function based on jQuery

Implement dynamic search display function based on jQuery_jquery

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Release： 2016-05-16 15:02:15

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The example in this article uses jQuery to implement the dynamic search and display function. As long as you enter a value, the data can be dynamically displayed immediately. It is different from the conventional query method. For your reference, the specific content is as follows

The simulation effect is as follows:

Case 1:

Case 2:

Implementation code:

<%@ page language="java" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 <head>
 <title>struts2</title>
 <meta http-equiv="pragma" content="no-cache">
 <meta http-equiv="cache-control" content="no-cache">
 <meta http-equiv="expires" content="0">
 <script type="text/javascript" src="<%=request.getContextPath() %>/js/jquery-1.4.1.js"></script>
 <script type="text/javascript">
 //数据源，json的格式.
 var user=[{"id": 1, "name": "张三","age":"25"},
    {"id": 2, "name": "李四","age":"35"},
    {"id": 3, "name": "王五","age":"20"},
    {"id": 4, "name": "老王","age":"20"},
    {"id": 5, "name": "老张","age":"25"},
    {"id": 6, "name": "李四","age":"35"},
    {"id": 7, "name": "王五","age":"20"},
    {"id": 8, "name": "老王","age":"20"},
    {"id": 9, "name": "abc","age":"25"},
    {"id": 10, "name": "李b四","age":"35"},
    {"id": 11, "name": "125","age":"20"},
    {"id": 12, "name": "246","age":"20"},
    {"id": 13, "name": "张三","age":"25"},
    {"id": 14, "name": "李四","age":"35"},
    {"id": 15, "name": "王五","age":"20"},
    {"id": 16, "name": "老王","age":"20"},
    {"id": 17, "name": "张三","age":"25"},
    {"id": 18, "name": "李四","age":"35"},
    {"id": 19, "name": "王五","age":"20"},
    {"id": 20, "name": "老王","age":"20"}];
 $(document).ready(function(){
  var seach=$("#seach");
  seach.keyup(function(event){
   //var keyEvent=event || window.event; 
   //var keyCode=keyEvent.keyCode; 
   // 数字键：48-57
   // 字母键：65-90
   // 删除键：8
   // 后删除键：46
   // 退格键：32
   // enter键：13 
   //if((keyCode>=48&&keyCode<=57)||(keyCode>=65&&keyCode<=90)||keyCode==8||keyCode==13||keyCode==32||keyCode==46){
    //获取当前文本框的值
    var seachText=$("#seach").val();
    if(seachText!=""){
     //构造显示页面
     var tab="<table width='300' border='1' cellpadding='0' cellspacing='0'><tr align='center'><td>编号</td><td>名称</td><td>年龄</td></tr>";
     //遍历解析json
     $.each(user,function(id, item){
      //如果包含则为table赋值
      if(item.name.indexOf(seachText)!=-1){
      tab+="<tr align='center'><td>"+item.id+"</td><td>"+item.name+"</td><td>"+item.age+"</td></tr>";
      }
     })
     tab+="</table>";
     $("#div").html(tab);
     //重新覆盖掉，不然会追加
     tab="<table width='300' border='1' cellpadding='0' cellspacing='0'><tr align='center'><td>编号</td><td>名称</td><td>年龄</td></tr>";
    }else{
     $("#div").html("");
    }
   // }
  })
 });
 </script>
 </head>
 
 <body>
  名字：<input id="seach" />
  <br/><br/>
  <div id="div"></div>
 </body>
</html>

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