jquery写的ajax
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1.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <%@ taglib prefix="s" uri="/struts-tags"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>My JSP \'Score.jsp\' starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> <script type="text/javascript" src="js/jquery.js"></script> <link rel="stylesheet" type="text/css" href="css/table1.css"> </head> <body> <script type="text/javascript"> function sub() { $.ajax({ url:\'Score.action?\'+Math.random(), type:\'POST\', //GET async:true, //或false,是否异步 data:$(\'#form\').serialize(),//提交表单数据 timeout:5000, //超时时间 dataType:\'json\', //返回的数据格式：json/xml/html/script/jsonp/text beforeSend:function(xhr){ console.log(xhr); console.log(\'发送前\'); }, success:function(data,textStatus,jqXHR){ $(\'#tb tr:not(:first)\').remove(); for (var i = 0; i < data.length; i++) { $(\'#tb\').append(\'<tr><td>\' + data[i].id.number + \'</td><td>\' + data[i].id.name + \'</td><td>\' + data[i].id.classs + \'</td><td>\' + data[i].id.course + \'</td><td>\' + data[i].id.score + \'</td></tr>\'); } console.log(data); console.log(textStatus); console.log(jqXHR.responseText); }, error:function(xhr,textStatus){ console.log(\'错误\'); console.log(xhr); console.log(textStatus); }, complete:function(){ console.log(\'结束\'); } }); } </script> <form id="form" action="" > <table> <tr> <th>课程<input name="course" id="course" type="text" size="10"></th> <th>班级<input name="classs" id="classs" type="text"></th> <th>学生学号<input type="text" id="number" name="number"></th> <th>学生姓名<input type="text" id="name" name="name"></th> <th><input type="button" id="submit" value="查询" onclick="sub()"></th> </tr> </table> </form> <table id="tb" cellpadding="4"> <tr> <th>学号</th> <th>姓名</th> <th>班级</th> <th>课程</th> <th>成绩</th> </tr> </table> </body> </html>
2.action（必须有set和get）
public String execute() throws Exception{
if(classs.length()>0){
if(course.length()>0){
scorelist=mgr.findScoreByClassandCourse(classs, course);//一个班的某一科成绩
}
else{
scorelist=mgr.findScoreByClass(classs);//一个班的所有成绩
}
}
else if(number.length()>0){
if(course.length()>0){
scorelist=mgr.findScoreByNumberandCourse(number, course);//一个人的某一科成绩
}
else{
scorelist=mgr.findScoreByNumber(number);//一个人的所有成绩
}
}
else if(name.length()>0){
if(course.length()>0){
scorelist=mgr.findScoreByNumberandCourse(number, course);//一个人的某一科成绩
}
else{
scorelist=mgr.findScoreByName(name);//一个人的所有成绩
}
}
else if(course.length()>0){
scorelist=mgr.findScoreByCourse(course);
}
else {
scorelist.clear();
}
return SUCCESS;
}
3.struts.xml
<package name="aaa" extends="json-default">
<action name="Score" class="ScoreAction"> <result name="success" type="json"> <param name="root">scorelist</param> </result></action>
4.结果截图
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