HTTP 상태 404 -/ServletHello/HelloServlet on eclipse

문제점 : index.jsp를 호출하면 서블릿을 호출하지 않습니다.HTTP 상태 404 -/ServletHello/HelloServlet on eclipse

(1)의 index.jsp :

<%@ page language="java" contentType="text/html; charset=UTF-8" 
    pageEncoding="UTF-8"%> 
<!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=UTF-8"> 
<title>Insert title here</title> 
</head> 
<body> 
<jsp:forward page="HelloServlet"/> 
</body> 
</html>

(2) 서블릿/HelloServlet.java :

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; 

@WebServlet("/HelloServlet") 
public class HelloServlet extends HttpServlet { 

    private static final long serialVersionUID = 1L; 


    public HelloServlet() { 
     super(); 
     // TODO Auto-generated constructor stub 
    } 


    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 
     // TODO Auto-generated method stub 
     request.getRequestDispatcher("welcome.jsp").forward(request, response); 
    } 
}

(3) 위해 welcome.jsp :

<body> 
    Hello world 
</body>

(4) web.xml

<?xml version="1.0" encoding="ISO-8859-1"?> 
<web-app xmlns="http://java.sun.com/xml/ns/j2ee" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" 
version="2.4"> 

<welcome-file-list>  
     <welcome-file>index.jsp</welcome-file>   
</welcome-file-list> 

<servlet> 
    <servlet-name>hello</servlet-name> 
    <servlet-class>servlet.HelloServlet</servlet-class> 
</servlet> 

<servlet-mapping> 
    <servlet-name> hello </servlet-name> 
    <url-pattern> /welcome</url-pattern> 
</servlet-mapping> 

</web-app>

,451,515,

는보고하고 jsp:forward 태그에 클래스 이름 대신 나에게

출처

2016-06-09 ToanNguyen

를 사용하여 서블릿의 URL 패턴을 도와 주셔서 감사합니다

<jsp:forward page="/welcome"/>

출처

2016-06-09 03:04:45

코딩에는 문제가 없습니다. 프로젝트 이름을 확인하십시오. 경로는 http : localhost : 8080/Servlet/HelloServlet이어야합니다.

여기서 서블릿은 프로젝트 이름입니다. 이것을 한번 확인하십시오.

URL은/HelloServlet이어야합니다. Not/servlet/HelloServlet

출처

2016-06-09 06:12:46 mallikarjun

HTTP 상태 404 -/ServletHello/HelloServlet on eclipse

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