Question

我正在尝试创建一个简单的Web应用程序，它具有使用Spring MVC的登录和欢迎页面。代码如下：

的web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.4"
    xmlns="http://java.sun.com/xml/ns/j2ee" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee 
    http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

    <display-name>Spring MVC Application</display-name>

   <servlet>
      <servlet-name>spring</servlet-name>
      <servlet-class>
         org.springframework.web.servlet.DispatcherServlet
      </servlet-class>
   </servlet>

   <servlet-mapping>
      <servlet-name>spring</servlet-name>
      <url-pattern>/</url-pattern>
   </servlet-mapping>

</web-app>

弹簧servlet.xml中

<?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="com.test"></context:component-scan>  

<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">  
<property name="prefix" value="/WEB-INF/jsp/"></property>  
<property name="suffix" value=".jsp"></property>  
</bean>  

</beans>

Controller.java

@Controller
@RequestMapping("/Authentication")
public class TestController{
    @RequestMapping(value="/")
    public String Login(){
        return "Login";
    }

    @RequestMapping(value="Authenticate", method=RequestMethod.GET)
    public String Authenticate(){
        //Authenticates and returns "Welcome"
    }
}

项目名称为Authentication。 / WEB-INF / jsp /.

下有Login.jsp和Welcome.jsp

但是，当我尝试运行该项目时，我收到HTTP状态404错误并发出以下警告：

org.springframework.web.servlet.PageNotFound noHandlerFound 警告：在名为'spring'的dispatcherservlet中找不到带有uri [/ Authentication /]的http请求的映射

为什么即使映射看起来很好，我也会收到此警告？

Answer 1

您没有指定spring-servlet的位置。将这些添加到您的web.xml文件中：

<listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>
        /WEB-INF/spring-servlet.xml
    </param-value>
</context-param>

警告：在名为“spring”的dispatcherservlet中找不到带有uri [/ Authentication /]的http请求的映射

1 个答案: