Jquery中的ajax应用，第九章PPT
<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
<%
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 'adjx.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-3.3.1.js"></script>
<script type="text/javascript">
$(function(){
$("#submit").click(function(){
var param = {
name:$("#name").val(),
age:$("#age").val()
};
$.ajax({
data:param,
url:"oneServlet",
beforeSend:function(){
$("img").show();
},
complete:function(){
$("img").hide();
},
success:function(data){
alert(data);
},
error:function(XMLHttpRequest, textStatus, errorThrown){
alert(XMLHttpRequest.status+" "+textStatus+" "+errorThrown);
}
});
});
});
</script>
</head>
<body>
<form>
<table>
<tr><td>name:</td><td><input type="text" ></td></tr>
<tr><td>age:</td><td><input type="text" ></td></tr>
<tr><td><input type="button" value="submit" ></td></tr>
</table>
<img src="images/6.jpg">
</form>
</body>
</html>servlet：
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class oneServlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String name = request.getParameter("name");
String age = request.getParameter("age");
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.print(name+":"+age);
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request, response);
}
}************************************************************************************************************************************************************************************************
