PageNotFound：在DispatcherServlet中找不到带有URI的HTTP请求的映射

时间：2015-10-11 21:51:09

标签： java spring maven spring-mvc

遇到 DispatcherServlet 的问题，我确实认为问题出在其中一个xmls中，但在Spring I中是新的，我无法识别它。

HotelController.java （src \ main \ java \ hotelbooking \ controller）

@Transactional
@Controller
public class HotelController {

    @Autowired
    HotelService hotels;

    @RequestMapping(value="/hotels", method=RequestMethod.GET)
    public String index(Model model) {
        System.out.println("test");
        model.addAttribute("hotels", hotels.findAllHotels());
        return "allhotels";
    }
}

web.xml （src \ main \ webapp \ WEB-INF）

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 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_2_5.xsd">

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/spring/root-context.xml</param-value>
    </context-param>

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

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

    <servlet-mapping>
         <servlet-name>mvc-dispatcher</servlet-name>
         <url-pattern>/</url-pattern>
    </servlet-mapping>
</web-app>

pom.xml （）

<?xml version="1.0" encoding="UTF-8"?>
<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>
<name>hotelbookings</name>
<groupId>CIAI_T1</groupId>
<artifactId>hotelbookings</artifactId>
<version>0.1.0</version>

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.3.0.M5</version>
</parent>

<properties>
    <hibernate.version>4.3.6.Final</hibernate.version>
    <mysql.connector.version>5.1.31</mysql.connector.version>
    <joda-time.version>2.3</joda-time.version>
    <testng.version>6.9.4</testng.version>
    <mockito.version>1.10.19</mockito.version>
    <h2.version>1.4.187</h2.version>
    <dbunit.version>2.2</dbunit.version>
    <java.version>1.8</java.version>
</properties>

<dependencies>
<!-- Spring -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
    </dependency>
            <dependency>
        <groupId>org.apache.tomcat.embed</groupId>
        <artifactId>tomcat-embed-jasper</artifactId>
        <scope>provided</scope>
    </dependency> 
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-tx</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-orm</artifactId>
    </dependency>

    <!-- Hibernate -->
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-core</artifactId>

    </dependency>

    <!-- jsr303 validation -->
    <dependency>
        <groupId>javax.validation</groupId>
        <artifactId>validation-api</artifactId>
        <version>1.1.0.Final</version>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-validator</artifactId>
    </dependency>

    <!-- MySQL -->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
    </dependency>

    <!-- Joda-Time -->       
    <dependency>
        <groupId>joda-time</groupId>
        <artifactId>joda-time</artifactId>
    </dependency>

    <!-- To map JodaTime with database type -->      
    <dependency>
        <groupId>org.jadira.usertype</groupId>
        <artifactId>usertype.core</artifactId>
        <version>3.0.0.CR1</version>
    </dependency>

    <!-- Servlet+JSP+JSTL -->
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>          
    </dependency>
    <dependency>
        <groupId>javax.servlet.jsp</groupId>
        <artifactId>javax.servlet.jsp-api</artifactId>
        <version>2.3.1</version>
    </dependency>
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>jstl</artifactId>
    </dependency>


    <!-- Testing dependencies -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.testng</groupId>
        <artifactId>testng</artifactId>
        <version>${testng.version}</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.mockito</groupId>
        <artifactId>mockito-all</artifactId>
        <version>${mockito.version}</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>com.h2database</groupId>
        <artifactId>h2</artifactId>
         <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>dbunit</groupId>
        <artifactId>dbunit</artifactId>
        <version>${dbunit.version}</version>
        <scope>test</scope>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-thymeleaf</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-devtools</artifactId>
    </dependency>
</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
            <dependencies>
                <dependency>
                    <groupId>org.springframework</groupId>
                    <artifactId>springloaded</artifactId>
                    <version>1.2.4.RELEASE</version>
                </dependency>
            </dependencies>
        </plugin>
        <plugin> <!-- enable java 1.7 -->
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>          
            <configuration>
                <source>1.7</source>
                <target>1.7</target>
            </configuration>
        </plugin>
    </plugins>
</build>

<repositories>
    <repository>
        <id>spring-releases</id>
        <name>Spring Releases</name>
        <url>https://repo.spring.io/libs-release</url>
    </repository>
    <repository>
        <id>org.jboss.repository.releases</id>
        <name>JBoss Maven Release Repository</name>
        <url>https://repository.jboss.org/nexus/content/repositories/releases</url>
    </repository>
    <repository>
        <id>spring-milestone</id>
        <url>https://repo.spring.io/libs-release</url>
    </repository>
</repositories>

<pluginRepositories>
    <pluginRepository>
        <id>spring-releases</id>
        <url>https://repo.spring.io/libs-release</url>
    </pluginRepository>
    <pluginRepository>
        <id>spring-milestone</id>
        <url>https://repo.spring.io/libs-release</url>
    </pluginRepository>
</pluginRepositories>

mvc-dispatcher-servlet.xml （src \ main \ webapp \ WEB-INF）

<?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:p="http://www.springframework.org/schema/p"
    xmlns:jee="http://www.springframework.org/schema/jee"
    xmlns:context="http://www.springframework.org/schema/context" 
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:mvc="http://www.springframework.org/schema/mvc" 
    xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-3.1.xsd
        http://www.springframework.org/schema/jee
        http://www.springframework.org/schema/jee/spring-jee-3.1.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd"> 

<context:component-scan base-package="hotelbooking.controller"/>
<mvc:annotation-driven />

<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/views/" />
    <property name="suffix" value=".jsp"/>
</bean>

</beans>

我的观点是：＆＃34; \ src \ main \ webapp \ WEB-INF \ views＆＃34;我有一个名为＆＃34; allhotels.jsp＆＃34;的文件，我试图用＆＃34; http://localhost:8080/hotels＆＃34;打开页面。 （虽然我不确定这是否正确）。

在上面的文件名前面是它们的相对路径。

我在Maven中使用Spring启动。如果您需要我发布任何其他内容，请告诉我。

2 个答案:

答案 0 :(得分：1)

我可以看到你在web.xml

中配置DispatcherServlet时使用了两个不同的名称 
<servlet>
    <servlet-name>mvc-dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
       <init-param>
           <param-name>contextConfigLocation</param-name>
           <param-value>/WEB-INF/spring/appServlet/mvc-dispatcher-servlet.xml</param-value>
       </init-param>
       <load-on-startup>1</load-on-startup>
</servlet>

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

在mvc-dispatcher-servlet.xml中执行以下更改

<?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:p="http://www.springframework.org/schema/p"
   xmlns:jee="http://www.springframework.org/schema/jee" xmlns:context="http://www.springframework.org/schema/context" 
   xmlns:tx="http://www.springframework.org/schema/tx"
   xmlns:mvc="http://www.springframework.org/schema/mvc" 
   xsi:schemaLocation="http://www.springframework.org/schema/beans   http://www.springframework.org/schema/beans/spring-beans-3.1.xsd  http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd      http://www.springframework.org/schema/jee   http://www.springframework.org/schema/jee/spring-jee-3.1.xsd
   http://www.springframework.org/schema/mvc      http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd"> 

<context:component-scan base-package="hotelbooking.controller"/>
<mvc:annotation-driven />

</beans>

我觉得它更多关于web.xml和spring配置文件的问题，请尝试使用上面修改过的文件并尝试一次。

Url模式应如下所示

  

http://hostname:port/<webapplication-name>/<controller-path>   http://localhost:8080/hotelbookings/hotels（在您的情况下，请尝试此假设＆＃39; hotelbookings＆＃39;作为网络应用程序名称。）

答案 1 :(得分：1)

您可能在mvc-dispatcher-servlet.xml文件中缺少此部分

<context:component-scan base-package="hotelbooking.controller" />

我想我看到了问题。您使用的是价值而不是路径。试试这个：

@RequestMapping(path="/hotels", method=RequestMethod.GET)
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