Spring MVC Hello World应用程序无法正常工作 [英] Spring MVC Hello World application not working
问题描述
我是Spring MVC的新手，我正在尝试编写一个简单的Web应用程序来开始使用Spring。
I'm new to Spring MVC and I'm trying to write a simple web app to get started with Spring.
这就是我所拥有的：
web.xml：
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
id="WebApp_ID" version="2.5">
<display-name>HatifimWeb</display-name>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>main</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>main</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
main-servlet.xml
main-servlet.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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<context:component-scan base-package="springapp.controller" />
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass"
value="org.springframework.web.servlet.view.JstlView" />
<property name="prefix" value="/WEB-INF/jsps/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
LoginController.java
LoginController.java
package springapp.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
@Controller
public class LoginController {
@RequestMapping("/Login")
public ModelAndView handleRequest() throws Exception {
System.out.println("Login...");
return new ModelAndView("Login", "message", "test");
}
}
index.jsp
index.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!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>
Hello.
<br />
<a href="Login">login</a>
</body>
</html>
Login.jsp
Login.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!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>poopidipoo</title>
</head>
<body>
${message}
</body>
</html>
index.jsp启动良好，但当我点击导航到登录页面时，我得到404 。
我正在使用Tomcat 7.而且我没有想法，看起来DispatcherServlet由于某种原因没有被调用。
The index.jsp starts well, but when I click to navigate to the login page, I get 404. I'm using Tomcat 7. And I'm out of ideas, it looks like the DispatcherServlet is not being invoked for some reason.
什么可以是问题吗？
提前致谢。
推荐答案
问题可能是你错过了页面中的上下文路径，请尝试这种方式：
The issue could be that you are missing the context path in your page, try this way:
<a href="${pageContext.request.contextPath}/Login">login</a>
更新：
您还可以将
< mvc：annotation-driven /> 添加到 main-servlet.xml
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