java - springmvc显示页面问题

Question

我一直在努力建立一个 mvc 项目，并且已经有一段时间我一直在尝试显示welcome.html页面但没有成功。

以上是项目的结构

我的家庭 Controller

        /**
 * 
 */
package com.knockknocks.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

    /**
     * @author vimal
     *
     */
    @Controller

    public class HomeController {
        @RequestMapping(value="/welcome")
        public ModelAndView home(){
            String message = "This is your home";
            System.out.println(123456);
             return new ModelAndView("welcome", "message", message);
        }

    }

works-servlet.xml

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans     
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/mvc 
        http://www.springframework.org/schema/mvc/spring-mvc.xsd
        http://www.springframework.org/schema/context 
        http://www.springframework.org/schema/context/spring-context.xsd">

    <context:component-scan base-package="com.knockknocks.controller" />
<mvc:annotation-driven />
    <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/jsp/" />
        <property name="suffix" value=".jsp" />
    </bean>

</beans>

web.xml

<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>Knockknocks</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
  <servlet>
    <servlet-name>works</servlet-name>
    <servlet-class>
            org.springframework.web.servlet.DispatcherServlet
        </servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>works</servlet-name>
    <url-pattern>/welcome.jsp</url-pattern>
    <url-pattern>/welcome.html</url-pattern>
    <url-pattern>*.html</url-pattern>
  </servlet-mapping>
</web-app>

pom文件

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>KnockKnocks</groupId>
  <artifactId>KnockKnocks</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>
  <build>
    <sourceDirectory>src</sourceDirectory>
    <plugins>
      <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.5</version>
        <configuration>
          <source>1.8</source>
          <target>1.8</target>
        </configuration>
      </plugin>
      <plugin>
        <artifactId>maven-war-plugin</artifactId>
        <version>2.6</version>
        <configuration>
          <warSourceDirectory>WebContent</warSourceDirectory>
          <failOnMissingWebXml>false</failOnMissingWebXml>
        </configuration>
      </plugin>


    </plugins>
  </build>
  <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>4.2.5.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>4.2.5.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>4.2.5.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>4.2.5.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>

        <dependency>
            <groupId>commons-logging</groupId>
            <artifactId>commons-logging</artifactId>
            <version>1.1.3</version>
        </dependency>
    </dependencies>
</project>

日志

Apr 23, 2016 9:23:04 PM org.apache.jasper.servlet.TldScanner scanJars
INFO: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
Apr 23, 2016 9:23:05 PM org.apache.catalina.core.ApplicationContext log
INFO: No Spring WebApplicationInitializer types detected on classpath
Apr 23, 2016 9:23:05 PM org.apache.catalina.core.ApplicationContext log
INFO: Initializing Spring FrameworkServlet 'works'
Apr 23, 2016 9:23:05 PM org.springframework.web.servlet.DispatcherServlet initServletBean
INFO: FrameworkServlet 'works': initialization started
Apr 23, 2016 9:23:05 PM org.springframework.web.context.support.XmlWebApplicationContext prepareRefresh
INFO: Refreshing WebApplicationContext for namespace 'works-servlet': startup date [Sat Apr 23 21:23:05 MUT 2016]; root of context hierarchy
Apr 23, 2016 9:23:06 PM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from ServletContext resource [/WEB-INF/works-servlet.xml]
Apr 23, 2016 9:23:10 PM org.springframework.web.servlet.DispatcherServlet initServletBean
INFO: FrameworkServlet 'works': initialization completed in 5153 ms
Apr 23, 2016 9:23:10 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-nio-8080"]
Apr 23, 2016 9:23:10 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-nio-8009"]
Apr 23, 2016 9:23:10 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 12093 ms

当我尝试访问 url http://localhost:8080/KnockKnocks/welcome.html 时，出现错误 HTTP 状态 404 -/KnockKnocks/welcome.html。

我希望有人能帮助我。

问候

Answer 1

用途:

<mvc:annotation-driven />

在你的works-servlet.xml中

它将设置您的 Spring 上下文以允许将请求分派(dispatch)到 Controller 。

希望这对您有帮助。