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JSP页面和Servlet页面不在同一个目录下，JSP页面通过表单的action如何跳转到servlet页面
我的项目的名称是Exercise,然后在src目录下有一个包edu.zhang.servlet,这个包里存放了一个servlet页面，名称是verify，在webroot目录下，有一个文件夹叫chapter7，然后有两个JSP页面，一个是input.jsp,另一个是ShowMessage.jsp,现在通过input.jsp页面输入数据通关表单提交到verify这个servlet页面，通过这个servlet页面进行验证，通过就跳转到ShowMessage.jsp页面，不通过返回input.jsp。
input.jsp页面代码：
<%@ page language="java" import="java.util.*,edu.zhang.servlet.*" pageEncoding="gbk"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<body bgcolor="cyan"><font size=3>
<form action="<%=path %>/src/edu/zhang/servlet/verify" method="post">
<p>输入姓名:<input type="text" name="name">
<br>输入年龄：<input type="text" name="age">
<br><input type="submit" value="提交">
</form>
</font>
</body>
</html>
verify代码：
package edu.zhang.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class verify extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
String name=request.getParameter("name");
String age=request.getParameter("age");
try{
int age_number=Integer.parseInt(age);
if(name==""||age==""){
response.sendRedirect("input.jsp");
}else if(age_number>150||age_number<1){
response.sendRedirect("input.jsp");
}else{
RequestDispatcher dispatcher=request.getRequestDispatcher("Exercise/chapter7/ShowMessage.jsp");
dispatcher.forward(request, response);
}
}catch(Exception e){}
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
this.doGet(request, response);
}
}
ShowMessage.jsp代码：
<%@ page language="java" import="java.util.*,edu.zhang.servlet.*" pageEncoding="gbk"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<body>
<%
String name=request.getParameter("name");
String age=request.getParameter("age");
%>
<p>您的姓名是：<%=name %>
<br>您的年龄是：<%=age %>
</body>
</html>
web.xml文件内容是：
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<servlet>
<description>This is the description of my J2EE component</description>
<display-name>This is the display name of my J2EE component</display-name>