可见路线returns 404

Question

当尝试访问 /Example/Site 时，将显示 404 找不到页面，但 jsp 在 webapp/WEB-INF/jsp/ 中。为什么这不起作用？

<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>jmattheis rest app</display-name>

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext.xml</param-value>
    </context-param>

    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>


    <servlet>
        <servlet-name>jersey-servlet</servlet-name>
        <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
        <init-param>
            <param-name>jersey.config.server.provider.packages</param-name>
            <param-value>com.Whosebug.jmattheis.rest</param-value>
        </init-param>
        <init-param>
            <param-name>jersey.config.servlet.filter.forwardOn404</param-name>
            <param-value>true</param-value>
        </init-param>
        <init-param>
            <param-name>jersey.config.server.provider.classnames</param-name>
            <param-value>org.glassfish.jersey.server.mvc.jsp.JspMvcFeature</param-value>
        </init-param>
        <init-param>
            <param-name>jersey.config.server.mvc.templateBasePath.jsp</param-name>
            <param-value>/WEB-INF/jsp</param-value>
        </init-param>
        <init-param>
            <param-name>jersey.config.server.tracing</param-name>
            <param-value>ALL</param-value>
        </init-param>
    </servlet>

    <servlet-mapping>
        <servlet-name>jersey-servlet</servlet-name>
        <url-pattern>/*</url-pattern>
    </servlet-mapping>

</web-app>

这里是资源：

@Component
@Path("Example")
public class Example {
    @GET
    @Path("/Site")
    @Produces(MediaType.TEXT_HTML)
    public Response getSite() {
        return Response.ok(new Viewable("/test")).build();
    }
}

Answer 1

Have a look at the Jersey2 MVC documentation

Jersey web applications that want to use JSP templating support should be registered as Servlet filters rather than Servlets in the application's web.xml. The web.xml-less deployment style introduced in Servlet 3.0 is not supported at the moment for web applications that require use of Jersey MVC templating support.

因此您需要将您的 servlet 更改为过滤器以使其工作。

可能这在 jersey 2 的早期版本中并不需要，但我找不到相关的旧文档，所以我们永远不会知道。

像这样：

<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>jmattheis rest app</display-name>

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext.xml</param-value>
    </context-param>

    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>


    <filter>
        <filter-name>jersey-filter</filter-name>
        <filter-class>org.glassfish.jersey.servlet.ServletContainer</filter-class>
        <init-param>
            <param-name>jersey.config.server.provider.packages</param-name>
            <param-value>com.Whosebug.jmattheis.rest</param-value>
        </init-param>
        <init-param>
            <param-name>jersey.config.servlet.filter.forwardOn404</param-name>
            <param-value>true</param-value>
        </init-param>
        <init-param>
            <param-name>jersey.config.server.provider.classnames</param-name>
            <param-value>org.glassfish.jersey.server.mvc.jsp.JspMvcFeature</param-value>
        </init-param>
        <init-param>
            <param-name>jersey.config.server.mvc.templateBasePath.jsp</param-name>
            <param-value>/WEB-INF/jsp</param-value>
        </init-param>
        <init-param>
            <param-name>jersey.config.server.tracing</param-name>
            <param-value>ALL</param-value>
        </init-param>
    </filter>

    <filter-mapping>
        <filter-name>jersey-filter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

</web-app>

可见路线returns 404

Viewable route returns 404

rest

jsp

jersey

jersey-2.0