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                        /JAVA遇見HTML——Servlet篇

路徑跳轉(zhuǎn)問題

路徑跳轉(zhuǎn)的時(shí)候前兩個(gè)正常，做testServlet跳轉(zhuǎn)就出現(xiàn)了解圖的error

index.jsp

<%@ page language="java" import="java.util.*" contentType="text/html; charset=ISO-8859-1"
??? pageEncoding="ISO-8859-1"%>
??? <%String path = request.getContextPath(); %>
<!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=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<h1>Servlet Path Direction
</h1>
<hr>
<! --comparation Path-->
<a href="servlet/HelloServlet">Go to Servelet</a><br>
<! --direct Path-->
<a href="<%=path %>/servlet/HelloServlet">Go to </a><br>
<a href="servlet/TestServlet">Go to test</a><br>
</body>
</html>

--------------------------------

package servlet;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
?* Servlet implementation class TestServlet
?*/
@WebServlet("/TestServlet")
public class TestServlet extends HttpServlet {
?? ?private static final long serialVersionUID = 1L;
????? ?
??? /**
???? * @see HttpServlet#HttpServlet()
???? */
??? public TestServlet() {
??????? super();
??????? // TODO Auto-generated constructor stub
??? }

?? ?/**
?? ? * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
?? ? */
?? ?protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
?? ??? ?// TODO Auto-generated method stub
?? ??? ?doPost(request,response);
?? ?}

?? ?/**
?? ? * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
?? ? */
?? ?protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
?? ??? ?// TODO Auto-generated method stub
?? ??? ?//request chongdingxiang to test.jsp
?? ??? ?response.sendRedirect("test.jsp");
?? ?}

}
------------------

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="3.0" 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_3_0.xsd">
?? ?<display-name>ServletPathDirection</display-name>
?? ?<welcome-file-list>
?? ??? ?<welcome-file>index.html</welcome-file>
?? ??? ?<welcome-file>index.htm</welcome-file>
?? ??? ?<welcome-file>index.jsp</welcome-file>
?? ??? ?<welcome-file>default.html</welcome-file>
?? ??? ?<welcome-file>default.htm</welcome-file>
?? ??? ?<welcome-file>default.jsp</welcome-file>
?? ?</welcome-file-list>
<servlet>
? <servlet-name>HelloServlet</servlet-name>
? <servlet-class>servlet.HelloServlet</servlet-class>
? <load-on-startup>2</load-on-startup>
</servlet>
<servlet>
? <servlet-name>TestServlet</servlet-name>
? <servlet-class>servlet.TestServlet</servlet-class>
? <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
? <servlet-name>HelloServlet</servlet-name>
? <url-pattern>/servlet/HelloServlet</url-pattern>
</servlet-mapping>
<servlet-mapping>
? <servlet-name>TestServlet</servlet-name>
? <url-pattern>/servlet/TestServlet</url-pattern>
</servlet-mapping>
</web-app>