Spring MVC。 HTTP状态404
[英]Spring MVC. HTTP Status 404
问题描述
I began to learn "Spring MVC" from this course: http://www.pluralsight.com/training/Courses/TableOfContents/springmvc-intro At step "Building->Run the Application" I'm stuck. 
我从此课程开始学习“ Spring MVC”： http : //www.pluralsight.com/training/Courses/TableOfContents/springmvc-intro在“构建->运行应用程序”步骤中，我遇到了麻烦。
When I try to go to link http://localhost:8080/FitnessTracker/greeting.html I get "HTTP Status 404" 当我尝试链接到http://localhost:8080/FitnessTracker/greeting.html我收到“ HTTP状态404”
HTTP Status 404 - /FitnessTracker/WEB-INF/jsp/Hello.jsp
type Status report
message /FitnessTracker/WEB-INF/jsp/Hello.jsp
description The requested resource is not available.
Apache Tomcat/7.0.50
web.xml web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app 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"
version="2.5">
<servlet>
<servlet-name>fitTrackerServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/config/servlet-config.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>fitTrackerServlet</servlet-name>
<url-pattern>*.html</url-pattern>
</servlet-mapping>
<display-name>Archetype Created Web Application</display-name>
</web-app>
servlet-config.xml servlet-config.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd">
<mvc:annotation-driven />
<context:component-scan base-package="com.pluralsight.controller"></context:component-scan>
<!--
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"/>
<property name="suffix" value=".jsp"/>
</bean>
-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:prefix="/WEB-INF/jsp/" p:suffix=".jsp"/>
</beans>
HelloController.java HelloController.java
package com.pluralsight.controller;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
public class HelloController {
@RequestMapping(value = "/greeting")
public String sayHello (Model model) {
model.addAttribute("greeting", "Hello WorldX");
return "Hello";
}
}
hello.jsp hello.jsp
<%@ page language="java" contentType="text/html; charset=US-ASCII"
pageEncoding="US-ASCII"%>
<!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=US-ASCII">
<title>Insert title here</title>
</head>
<body>
<h1>${greeting}</h1>
</body>
</html>
http://localhost:8080/FitnessTracker/ - it's work (file: webapp/index.jsp) http://localhost:8080/FitnessTracker/ -工作正常（文件：webapp / index.jsp）
3 个解决方案
解决方案1
7 已采纳 2014-02-01 15:12:39
The error message says that it's looking for Hello.jsp . 错误消息表明它正在寻找Hello.jsp 。 And indeed, your controller returns the following view name: "Hello" . 实际上，您的控制器返回了以下视图名称： "Hello" 。 But your screenshot shows that your file is naled hello.jsp . 但是您的屏幕快照显示，您的文件已设置为hello.jsp 。 The case matters. 案件很重要。
解决方案2
4 2014-02-01 15:12:33
Try returning the properly cased view name which matches the JSP hello.jsp from the controller. 尝试从控制器返回与JSP hello.jsp匹配的hello.jsp正确的视图名称。 Currently the controller returns Hello while the JSP is named hello.jsp , causing the 404. 当前，当JSP名为hello.jsp ，控制器返回Hello ，导致404。
@Controller
public class HelloController {
@RequestMapping(value = "/greeting")
public String sayHello (Model model) {
model.addAttribute("greeting", "Hello WorldX");
//return "Hello";
return "hello";
}
}
解决方案3
0 2016-11-24 04:07:19
Change in your web.xml the to 在您的web.xml中更改为
<servlet-mapping>
<servlet-name>fitTrackerServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
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