网页未找到。 Spring MVC + Jetty

Question

我正在尝试使用包含jsp和@Controller的Spring MVC启动Jetty。 在开始码头后，如果我尝试拨打任何页面，我每次都有WARN。 例如

TTP：//本地主机：8080 / getMessageStats /

在DispatcherServlet中找不到带有URI [/resources/css/bootstrap.min.css]的HTTP请求的映射，名称为'org.springframework.web.servlet.DispatcherServlet-57ad85ed'找不到带URI的HTTP请求的映射[/ resources / js DispatcherServlet中的/bootstrap.min.js]，名称为“org.springframework.web.servlet.DispatcherServlet-57ad85ed”

web.xml中

<web-app 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>mvc-dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
</servlet>

<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/mvc-dispatcher-servlet.xml</param-value>
</context-param>

<servlet-mapping>
    <servlet-name>mvc-dispatcher</servlet-name>
    <url-pattern>/cloud/*</url-pattern>
</servlet-mapping>

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

MVC-调度-servlet.xml中

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

<context:component-scan base-package="net.cloud.web.statistics"/>

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

<mvc:resources mapping="/resources/**" location="/resources/" />

<mvc:annotation-driven />

WebServer.class

public class WebServer {
private static final Logger log = LoggerFactory.getLogger(WebServer.class);

private static final String CONTEXT_PATH = "/";
private Server httpServer;

@Value("${http_statistics_port}")
private Integer port;

@Value("${start_page_path}")
private String startPagePath;

public void init() {
    try {
        httpServer = new Server(port);
        httpServer.setHandler(getServletContextHandler());
        httpServer.setStopAtShutdown(true);

        httpServer.start();
        log.info("WebServer start ...");
        httpServer.join();

    } catch (Exception ex) {
        log.error("Exception in http server. Exception: {}", ex.getMessage());
    }

}

private static ServletContextHandler getServletContextHandler() throws IOException {
    WebAppContext contextHandler = new WebAppContext();
    contextHandler.setErrorHandler(null);
    contextHandler.setContextPath(CONTEXT_PATH);

    WebApplicationContext context = getContext();

    contextHandler.addServlet(new ServletHolder(new DispatcherServlet(context)), CONTEXT_PATH);
    contextHandler.addEventListener(new ContextLoaderListener(context));
    contextHandler.setResourceBase(new ClassPathResource("webapp").getURI().toString());
    contextHandler.setDescriptor("/webapp/WEB-INF/web.xml");
    return contextHandler;
}

private static WebApplicationContext getContext() {
    AnnotationConfigWebApplicationContext context = new AnnotationConfigWebApplicationContext();
    context.setConfigLocation("webapp/WEB-INF/");
    log.info("CONTEXT name {} locations {}", context.getDisplayName(), context.getConfigLocations());

    return context;
}

}

GetMessagesStatsController.class

    @Controller
@RequestMapping("/getMessageStats")
public class GetMessageStatsController {

    @RequestMapping(value = "/", method = RequestMethod.GET)
    public String printWelcome(ModelMap model) {

        GetMessageStatsRPC rpc = new GetMessageStatsRPC();

        model.addAttribute("result", rpc.getResult());

        return "getMessageStats";
    }

    @RequestMapping(value = "/json", method = RequestMethod.GET)
    public @ResponseBody
    String generateJsonResponse() {

        GetMessageStatsRPC rpc = new GetMessageStatsRPC();

        return rpc.getResult().toString();
    }
}

项目树（对不起，没有评级上传图片）。 类别：

src / java / main / net /.../ WebServer.class; src / java / main / net /.../ GetMessagesStatsController.class src / main / webapp / WEB-INF / web.xml; 的src /主/ web应用/ WEB-INF / MVC-调度-servlet.xml中; SRC /主/ web应用/ WEB-INF /页/ * JSP。 src / main / webapp / resources / css和src / main / webapp / resources / js

伙计们，有什么想法吗？

Answer 1

首先，在部署应用程序时，它会检查web.xml并获取

<url-pattern>/*</url-pattern>

然后它初始化DispatcherServlet并使用初始化初始化参数

<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/mvc-dispatcher-servlet.xml</param-value>
</context-param>

（WEB-INF必须以/开头）

然后在mvc-dispatcher-servlet.xml ，视图解析器解析呈现页面。

将<property name="prefix" value="WEB-INF/pages/"/>更改为

<property name="prefix" value="/WEB-INF/pages/"/>

最后在您的控制器中@RequestMapping("/getMessageStats")

所以最后启动应用程序为

http://localhost:8080/ProjectName/getMessageStats/

调用GetMessagesStatsController的printWelcome（）和

 http://localhost:8080/ProjectName/getMessageStats/json

调用generateJsonResponse（）

Answer 2

看起来viewResolver有问题。 将前缀更改为/ WEB-INF / pages / ，如下所示：

<bean id="viewResolver" class="org.springframework.web.servlet.view.UrlBasedViewResolver">
    <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
    <property name="prefix" value="/WEB-INF/pages/"/>
    <property name="suffix" value=".jsp"/>
</bean>

如果没有斜杠，则表示相对路径，因此它将在relativePath（getMessageStats /）+前缀（WEB-INF / pages /）+ request（getMessageStats）+后缀（.jsp）中找到该页面。