在DispatcherServlet中找不到带有URI [/ HelloWeb /]的HTTP请求的映射，名称为“HelloWeb” [英] No mapping found for HTTP request with URI [/HelloWeb/] in DispatcherServlet with name 'HelloWeb'
问题描述
我正在tomcat上部署我的项目，然后我收到此错误在DispatcherServlet中找不到带有URI [/ HelloWeb /]的HTTP请求的映射，名称为'HelloWeb'。
I am deploying my project on tomcat,then I am getting this error "No mapping found for HTTP request with URI [/HelloWeb/] in DispatcherServlet with name 'HelloWeb'".
这是我的网络xml文件
web.xml
this is my web xml file web.xml
<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_3_0.xsd"
version="3.0"
metadata-complete="true">
<display-name>Spring MVC Application</display-name>
<servlet>
<servlet-name>HelloWeb</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>HelloWeb</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
</web-app>
我的 HelloWeb-servlet.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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="com.tutorialspoint.controller" />
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
我的控制器 HelloController.java
package com.tutorialspoint.controller;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
@Controller
public class HelloController {
@RequestMapping(value = "/hello", method = RequestMethod.GET)
public String printHello(ModelMap model) {
model.addAttribute("message", "Hello Spring MVC Framework!");
return "hello";
}
}
hello.jsp
<%@ page contentType="text/html; charset=UTF-8" %>
<html>
<head>
<title>Hello World</title>
</head>
<body>
<h2>${message}</h2>
</body>
</html>
有人可以告诉我代码中有什么问题吗？
Can anyone please suggest me what is wrong in code?
推荐答案
我相信您正在遵循 tutorialspoint - Spring MVC的HelloWorld。我遇到了同样的问题，因为DispatcherServlet试图解决。
I believe that you are following the tutorial of tutorialspoint - HelloWorld for Spring MVC. I have the same issue which happens because DispatcherServlet try to resolve.
http://localhost:8080/HelloWeb/
它应该是：
http://localhost:8080/HelloWeb/hello
（把它放在你的网站上-browser）
(Put this in your web-browser)
或者它可以用另一种方式完成（如教程中所建议的）
Or it can be done another way (as suggested in that tutorial)
您应该注意，在给定的URL中，HelloWeb是应用程序
名称，hello是我们在
控制器中使用@RequestMapping（/ hello）提到的虚拟子文件夹。使用@RequestMapping（/）映射URL时可以使用直接root
，在这种情况下，
可以使用短URL访问同一页面
http： // localhost：8080 / HelloWeb /但建议在不同文件夹下使用不同的
功能。
You should note that in the given URL, HelloWeb is the application name and hello is the virtual subfolder which we have mentioned in our controller using @RequestMapping("/hello"). You can use direct root while mapping your URL using @RequestMapping("/"), in this case you can access the same page using short URL
http://localhost:8080/HelloWeb/but it is advised to have different functionalities under different folders.
在 HelloWorldController 类中，你改变了这个：
in HelloWorldController class, you change this:
@RequestMapping("/hello")
到此：
@RequestMapping("/")
结果是你可以打电话 http：// localhost：8080 / HelloWeb / 没有任何问题。
the result is that you can call http://localhost:8080/HelloWeb/ without any problem.
希望有所帮助！
这篇关于在DispatcherServlet中找不到带有URI [/ HelloWeb /]的HTTP请求的映射，名称为“HelloWeb”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！
