Java Can';t运行';“你好,世界”;Spring MVC代码
我从Spring的网站上取了下面的例子,试图理解基本概念,但到目前为止,我只在配置方面遇到了困难 下面是web.xml:Java Can';t运行';“你好,世界”;Spring MVC代码,java,spring,jsp,spring-mvc,Java,Spring,Jsp,Spring Mvc,我从Spring的网站上取了下面的例子,试图理解基本概念,但到目前为止,我只在配置方面遇到了困难 下面是web.xml: <?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="ht
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 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">
<!-- Processes application requests -->
<servlet>
<servlet-name>appServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/appServlet/servlet-context.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>appServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
最后是home.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@ page session="false" %>
<!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>
<p>Hello World!
</body>
</html>
我试着玩弄路径名之类的东西,但似乎什么都没用。我不明白为什么我在直接从马口中获取了这么简单的代码后,在运行它时会遇到这么多麻烦。您尝试过哪些URL?
我认为
web.xml
映射中的URL模式应该是/*
,而不是/
,因为您将所有类都放在资源目录中,它们不会被编译。将所有包移动到src/main/java。我还处理了控制器中的内部路径和dispatcher servlet中的包名。我也试过使用/*了,我也有同样的想法error@spacitron这是正确的答案。您需要将/src/main/java
设置为一个源文件夹。您的日志中是否仍有org.springframework.web.servlet.DispatcherServlet noHandlerFound消息?因为这表明在类路径上找不到带注释的控制器。
package xyz.sample.baremvc;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
/**
* Handles requests for the application home page.
*/
@Controller
public class HomeController {
@RequestMapping(value = "/")
public String home() {
System.out.println("HomeController: Passing through...");
return "WEB-INF/views/home.jsp";
}
}
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@ page session="false" %>
<!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>
<p>Hello World!
</body>
</html>
Nov 29, 2013 11:14:33 PM org.springframework.web.servlet.DispatcherServlet noHandlerFound
WARNING: No mapping found for HTTP request with URI [/Springer2/] in DispatcherServlet with name 'appServlet'