404错误-教程中的Eclipse中使用Maven的Java Spring MVC [英] 404 Error - Java Spring MVC using Maven in Eclipse from Tutorial
问题描述
我的系统: 操作系统:Ubuntu Linux 16.04 IDE:带有Servlet引擎的Eclipse Neon:Apache Tomcat/8.0.48
My System: OS: Ubuntu Linux 16.04 IDE: Eclipse Neon with Servlet Engine: Apache Tomcat/8.0.48
我尝试通过使用Maven和Example的教程来学习Spring MVC. 我正确地遵循了这些步骤，但是浏览器出现404-错误.
I try to learn the Spring MVC via the Tutorial using Maven with Example. I followed these steps accurately but i get an 404 - Error on my Browser.
我的文件结构: 文件结构
我的pom.xml
<!-- lines ommited -->
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.1.8.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.1.8.RELEASE</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.36</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
</dependencies>
<build>
<finalName>DemoMVC2</finalName>
</build>
<!-- lines ommited -->
这是我的web.xml
heres my web.xml
<!-- lines ommited -->
<web-app>
<display-name>Archetype Created Web Application</display-name>
<servlet>
<servlet-name>telusko</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>telusko</servlet-name>
<url-pattern>*.html</url-pattern>
</servlet-mapping>
</web-app>
我的AddController.java
my AddController.java
package com.telusko;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
public class AddController {
@RequestMapping("/add")
public String add(){
return "display.jsp";
}
}
telusko-servlet.xml
telusko-servlet.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:ctx="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-2.5.xsd ">
<ctx:annotation-config></ctx:annotation-config>
<ctx:component-scan base-package="com.telusko"></ctx:component-scan>
</beans>
我的index.jsp
my index.jsp
<html>
<body>
<h2>MVC Tutorial second attempt!</h2>
<form action="add"><!-- call servlet "add" Class AddController method "add"-->
<input type="text" name="t1"><br>
<input type="text" name="t2"><br>
<input type=submit>
</form>
</body>
</html>
display.jsp
display.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>
<p>I'm here</p>
</body>
</html>
当我在服务器上运行index.jsp时，它会显示在浏览器中. 但是在填写表格并通过提交按钮发送数据之后 它显示此404错误:
When i run the index.jsp on server, it is displayed on the browser. But after filling the form, and sending the data via submit button it show this 404 error:
我多次尝试了本教程.我也尝试了注释部分中的错误修正以及关于stackoverflow的类似文章，但没有任何效果.
I tried this Tutorial many times. I tried also the bugfixes in the comment section and similar posts on stackoverflow, but nothing worked.
推荐答案
感谢您的回答
我通过以下步骤解决了这个问题:
I solved the problem with following steps :
首先，我用/修改了WEB-INF/web.xml中的内容:
First i edited the in WEB-INF/web.xml with an / :
<url-pattern>/</url-pattern>
然后将tomcat配置中的Web应用程序版本从3.1设置为2.5 在本地tomcat配置中-> web.xml
And set the web-app version from the tomcat-configuration from 3.1 to 2.5 in the local tomcat configuration -> web.xml
<web-app version="2.5" 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_2_5.xsd">
最后右键单击该项目，然后以运行方式->在服务器上运行...
Finally right-clicked on the Project and run-as -> run on server ...
该解决方案有效！
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