Tomcat 10.0.4不会加载404错误的Servlet(@WebServlet类) [英] Tomcat 10.0.4 doesn't load servlets (@WebServlet classes) with 404 error
问题描述
我的第一个Web应用程序有问题.我将IntelliJ用作IDE，将Tomcat用作Web服务器.我尝试访问的每个servlet都会引发404错误.即使我复制了一些youtube教程，效果似乎也很不错.
I'm having a problem with my first Web Application. I use IntelliJ as IDE and Tomcat as Webserver. Every servlet I've tried to acces, throws an 404 Error. Even if I copy some youtube tutorials, which seems to work like a charm.
表单中的按钮将我发送至:http://localhost:8080/IUBHQuiz/login
The button in the form sends me to: http://localhost:8080/IUBHQuiz/login
你能告诉我怎么了吗?我疯了.
Can you tell me whats wrong? I am going nuts.
login.java
package com.example.IUBHQuiz;
import java.io.*;
import javax.servlet.*;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.*;
import java.sql.*;
@WebServlet("/login")
public class login extends HttpServlet {
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
String email = request.getParameter("fmail");
String pass = request.getParameter("fpw");
if(email.equals("j") && pass.equals("j"))
{
RequestDispatcher rs = request.getRequestDispatcher("/main.jsp");
rs.forward(request, response);
}
else
{
out.println("Username or Password incorrect");
RequestDispatcher rs = request.getRequestDispatcher("/index.jsp");
rs.include(request, response);
}
out.close();
}
index.jsp
<%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<!DOCTYPE html>
<html>
<head>
<title>IUBH Quiz</title>
<link href="./resources/css/style.css" rel="stylesheet">
</head>
<body>
<div class="main">
<div class="image-container">
<img src="./resources/images/logo.png" alt="Logo">
</div>
<div class="Login">
<h1>Willkommen beim IUBH-Quiz!</h1>
<form action="login" method="post">
E-Mail:<input type="text" id="fmail" name="fmail"><br><br>
Passwort: <input type="password" id="fpw" name="fpw"><br><br>
<input type="submit" value="Log In" class="button">
</form>
</div>
<div class="Links">
<a href="#">Passwort vergessen</a>
<a href="#">Registrieren</a>
</div>
</div>
</body>
</html>
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
version="4.0">
</web-app>
推荐答案
我在复制由于在Piotr P. Karwasz的回答中描述的原因，它无法与Tomcat 10配合使用，但是它可以在Tomcat 9.0.44和更早版本中正常工作.
It didn't work with Tomcat 10 for the reasons described in the answer by Piotr P. Karwasz, but it works just fine with Tomcat 9.0.44 and earlier versions.
这篇关于Tomcat 10.0.4不会加载404错误的Servlet(@WebServlet类)的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
