Spring 弹簧注释HandlerMapping不工作

我不熟悉使用带注释控制器的spring控制器

这是我的配置

Bean定义

<bean
    class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />

---

尝试访问给定URL时，Spring抛出警告org.springframework.web.servlet.PageNotFound-在名为“springapp”的DispatcherServlet中找不到URI为[/Learn/annotation/first.ftl]的HTTP请求的映射。我想您缺少的是组件扫描

<context:component-scan base-package="learn.web.controller" />

将此添加到您的配置中，然后重试

这将从指定的包加载所有带注释的组件

您的配置可能如下所示

<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-2.5.xsd
       http://www.springframework.org/schema/context 
       http://www.springframework.org/schema/context/spring-context-2.5.xsd">

    <context:component-scan base-package="learn.web.controller" />
    <bean
    class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />

</beans>

<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-2.5.xsd
       http://www.springframework.org/schema/context 
       http://www.springframework.org/schema/context/spring-context-2.5.xsd">

    <context:component-scan base-package="learn.web.controller" />
    <bean
    class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />

</beans>