Spring MVC URL映射麻烦[重复]

Question

大家好，我正在开发 covoiturage 应用程序，但页面之间的导航出现问题。当我单击链接转到另一个页面时，我遇到了问题“在 dispatcherservlet 中找不到带有 uri 的 http 请求的映射，名称为 mvc-dispatcher” 谢谢你

<annotation-driven />

<!-- Handles HTTP GET requests for /resources/** by efficiently serving up static resources in the ${webappRoot}/resources directory -->
<resources mapping="/resources/**" location="/resources/" />

<!-- Resolves views selected for rendering by @Controllers to .jsp resources in the /WEB-INF/views directory -->
<beans:bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <beans:property name="prefix" value="/WEB-INF/views/" />
    <beans:property name="suffix" value=".jsp" />
</beans:bean>

<context:component-scan base-package="com.covoiturage.app" />


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


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

org.springframework.web.context.ContextLoaderListener

Answer 1

您得到的异常是您尝试导航到的 URL 被转发到 DispatcherServlet，但未映射到任何 Web 控制器上。更具体地说，如果您将 DispatcherServlet 映射到根上下文，像这样

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

然后你就有了，比如说，一个带有这样链接的 HTML 页面

<a href="/my-url">click me</a>

要实现导航，您需要一个带有 @Controller 注释的类，该类具有一个映射 URL 的方法（注意 @RequestMapping 注释）：

@Controller
public class TestPageController
{       
    @RequestMapping(path = "/my-url")
    public String getTestPage()
    {
        return "renderViewName";
    }
}