java - 找不到 HTTP Spring MVC 的映射

Question

我正在使用 spring mvc 做一个小演示，但在部署应用程序时遇到问题。我使用的是 Wildfly 10.0.0

不明白发生了什么

在我的 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">

<display-name>Archetype Created Web Application</display-name>

<servlet>
    <servlet-name>simu-cmac</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/spring/app-config.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>simu-cmac</servlet-name>
    <url-pattern>*.htm</url-pattern>
</servlet-mapping>

在我的 app-config.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: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.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd
    http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd">

<context:component-scan base-package="com.cmac.simu" />

<mvc:annotation-driven/>

还有我的 Controller

@Controller
public class SimuAPIController {

protected final Log logger = LogFactory.getLog(getClass());

@RequestMapping("/home.htm")
public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    logger.info("Returning home view");
    System.out.println("To home view");
    return new ModelAndView("home.jsp");
}

}

部署应用程序时，控制台上会显示以下错误

19:50:39,417 WARN  [org.springframework.web.servlet.PageNotFound] (default task-3) No mapping found for HTTP request with URI [/simu-cmac/home.htm] in DispatcherServlet with name 'simu-cmac'

Answer 1

似乎您的 Controller 没有被 Spring 应用程序扫描。正如您所定义的:

<context:component-scan base-package="com.cmac.simu" />

因此您的 Controller 必须位于 com.cmac.simu 包内。所以 spring config 可以扫描你的 Controller 。