我看到类似的问题并尝试将 URL 从/* 映射到/但它不起作用。 我也尝试过直接从浏览器访问该 URL,但也不起作用。 我是 Spring 新手,有人可以帮助我吗?
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Archetype Created Web Application</display-name>
<servlet>
<servlet-name>dispatcherservlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- <init-param>
<param-name>contextConfigLocation</param-name>
<param-value></param-value>
</init-param> -->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherservlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
我的dispatcherservlet-servlet.xml是
<?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"
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
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
<mvc:resources mapping="/style/**" location="/style/"/>
<mvc:default-servlet-handler/>
<context:annotation-config/>
<context:component-scan base-package="com"/>
</beans>
最后是我的 Controller
package com;
import javax.annotation.Resource;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
public class addition {
@RequestMapping("/add")
void add() {
System.out.println("im addint");
}
}
我的index.jsp作为欢迎文件
<html>
<body>
<h2>Hello World!</h2>
<form action="add">
<input type="text" name="first number">first number<br>
<input type="text" name="second number">second number<br>
<input type="submit" name="add two numbers"><br>
</form>
</body>
</html>
当我运行时,我可以提交并点击添加方法的 URL,但我收到警告:在名为“dispatcherservlet”的 DispatcherServlet 中找不到带有 URI [/mvc/add] 的 HTTP 请求的映射
最佳答案
您缺少<mvc:annotation-driven />
上dispatcherservlet-servlet.xml
,这使得@Controller
注释。
关于java - 警告 : No mapping found for HTTP request with URI [/mvc/add] in DispatcherServlet with name 'dispatcherservlet' ,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/52315494/