问题
I am working on a spring-mvc project. After many tries, I am unable to the map the controller in spring. As a result, the below url always returns as 404 not found.
http://localhost:8080/EcommerceBookStore/rest/welcome
Here is the web.xml
<?xml version="1.0" encoding="UTF-8"?>
<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_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>EcommerceBookStore</display-name>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/applicationContext.xml,
/WEB-INF/Ecommerce-servlet.xml
</param-value>
</context-param>
<servlet>
<servlet-name>Ecommerce</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Ecommerce</servlet-name>
<url-pattern>/rest/</url-pattern>
</servlet-mapping>
<!-- <servlet>
<servlet-name>Ecommerce</servlet-name>
<servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>com.java.Client</param-name>
<param-value>com.java.Client</param-value>
</init-param>
<init-param>
<param-name>com.sun.jersey.api.json.POJOMappingFeature</param-name>
<param-value>true</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>-->
</web-app>Here is the Ecommerce-servlet.xml
<?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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:tx="http://www.springframework.org/schema/tx"
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 http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<mvc:default-servlet-handler/>
<mvc:annotation-driven>
<mvc:argument-resolvers>
<bean class="org.springframework.security.web.bind.support.AuthenticationPrincipalArgumentResolver" />
</mvc:argument-resolvers>
</mvc:annotation-driven>
<!-- bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WebContent" />
<property name="suffix" value=".jsp" />
</bean-->
<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>
<mvc:annotation-driven />
<context:component-scan base-package="com.webspider"/>
<mvc:resources mapping="/Resources/**" location="/Resources/" />
</beans>Here is the
<?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:security="http://www.springframework.org/schema/security"
xmlns:webflow-config="http://www.springframework.org/schema/webflow-config"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security.xsd http://www.springframework.org/schema/webflow-config http://www.springframework.org/schema/webflow-config/spring-webflow-config.xsd">
<bean class="org.springframework.jdbc.datasource.DriverManagerDataSource"
id="dataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
<property name="url" value="jdbc:mysql://localhost:3306/Ecommerce"></property>
<property name="username" value="root"></property>
<property name="password" value="pass"></property>
</bean>
<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean" >
<property name="dataSource" ref="dataSource"></property>
<property name="hibernateProperties" >
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.format_sql">true</prop>
</props>
</property>
<property name="packagesToScan">
<list>
<value>com.webspider</value>
</list>
</property>
</bean>
<bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="maxUploadSize" value="10240000" />
</bean>
<security:http auto-config="true">
<security:intercept-url pattern="/admin/**" access="ROLE_ADMIN" />
<security:intercept-url pattern="/customer/**" access="ROLE_USER" />
<security:form-login
login-page="/login"
default-target-url="/product/productList"
authentication-failure-url="/login?error"
username-parameter="username"
password-parameter="password" />
<security:logout
logout-success-url="/login?logout" />
</security:http>
<security:authentication-manager>
<security:authentication-provider>
<security:jdbc-user-service
data-source-ref="dataSource"
authorities-by-username-query="SELECT username, authority FROM authorities WHERE username = ?"
users-by-username-query="SELECT username, password, enabled FROM users WHERE username = ?" />
</security:authentication-provider>
</security:authentication-manager>
<webflow-config:flow-executor id="flowExecutor" flow-registry="flowRegistry" />
<webflow-config:flow-registry id="flowRegistry" base-path="/WEB-INF/flows">
<webflow-config:flow-location path="/checkout/checkout-flow.xml" id="checkout" />
</webflow-config:flow-registry>
<bean id="flowHandlerMapping" class="org.springframework.webflow.mvc.servlet.FlowHandlerMapping">
<property name="flowRegistry" ref="flowRegistry" />
</bean>
<bean id="flowHandlerAdapter" class="org.springframework.webflow.mvc.servlet.FlowHandlerAdapter">
<property name="flowExecutor" ref="flowExecutor" />
</bean>
</beans>Here is the helloworld controller
package com.webspider.Controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
/*
* author: Crunchify.com
*
*/
@Controller
public class HelloWorld {
@RequestMapping("/welcome")
public ModelAndView helloWorld() {
String message = "<br><div style='text-align:center;'>"
+ "<h3>********** Hello World, Spring MVC Tutorial</h3>This message is coming from CrunchifyHelloWorld.java **********</div><br><br>";
return new ModelAndView("welcome", "message", message);
}
}
Here is the tomcat output
Nov 23, 2016 12:41:14 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dfile.encoding=UTF-8
Nov 23, 2016 12:41:14 AM org.apache.catalina.core.AprLifecycleListener lifecycleEvent
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /Users/atishpatra/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.
Nov 23, 2016 12:41:15 AM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-nio-8080"]
Nov 23, 2016 12:41:15 AM org.apache.tomcat.util.net.NioSelectorPool getSharedSelector
INFO: Using a shared selector for servlet write/read
Nov 23, 2016 12:41:15 AM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["ajp-nio-8009"]
Nov 23, 2016 12:41:15 AM org.apache.tomcat.util.net.NioSelectorPool getSharedSelector
INFO: Using a shared selector for servlet write/read
Nov 23, 2016 12:41:15 AM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 972 ms
Nov 23, 2016 12:41:15 AM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
Nov 23, 2016 12:41:15 AM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/8.0.38
Nov 23, 2016 12:41:18 AM 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.
Nov 23, 2016 12:41:18 AM org.apache.catalina.core.ApplicationContext log
INFO: No Spring WebApplicationInitializer types detected on classpath
Nov 23, 2016 12:41:18 AM org.apache.catalina.core.ApplicationContext log
INFO: Initializing Spring FrameworkServlet 'Ecommerce'
Nov 23, 2016 12:41:18 AM org.springframework.web.servlet.FrameworkServlet initServletBean
INFO: FrameworkServlet 'Ecommerce': initialization started
Nov 23, 2016 12:41:18 AM org.springframework.context.support.AbstractApplicationContext prepareRefresh
INFO: Refreshing WebApplicationContext for namespace 'Ecommerce-servlet': startup date [Wed Nov 23 00:41:18 CST 2016]; root of context hierarchy
Nov 23, 2016 12:41:18 AM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from ServletContext resource [/WEB-INF/Ecommerce-servlet.xml]
Nov 23, 2016 12:41:19 AM org.springframework.beans.factory.support.DefaultListableBeanFactory registerBeanDefinition
INFO: Overriding bean definition for bean 'org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping' with a different definition: replacing [Root bean: class [org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null] with [Root bean: class [org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null]
Nov 23, 2016 12:41:19 AM org.springframework.beans.factory.support.DefaultListableBeanFactory registerBeanDefinition
INFO: Overriding bean definition for bean 'org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter' with a different definition: replacing [Root bean: class [org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null] with [Root bean: class [org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null]
Nov 23, 2016 12:41:19 AM org.springframework.beans.factory.support.DefaultListableBeanFactory registerBeanDefinition
INFO: Overriding bean definition for bean 'mvcUriComponentsContributor' with a different definition: replacing [Root bean: class [org.springframework.web.servlet.config.AnnotationDrivenBeanDefinitionParser$CompositeUriComponentsContributorFactoryBean]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null] with [Root bean: class [org.springframework.web.servlet.config.AnnotationDrivenBeanDefinitionParser$CompositeUriComponentsContributorFactoryBean]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null]
Nov 23, 2016 12:41:19 AM org.springframework.web.servlet.handler.AbstractUrlHandlerMapping registerHandler
INFO: Mapped URL path [/**] onto handler 'org.springframework.web.servlet.resource.DefaultServletHttpRequestHandler#0'
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Nov 23, 2016 12:41:20 AM org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter initControllerAdviceCache
INFO: Looking for @ControllerAdvice: WebApplicationContext for namespace 'Ecommerce-servlet': startup date [Wed Nov 23 00:41:18 CST 2016]; root of context hierarchy
Nov 23, 2016 12:41:20 AM org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter initControllerAdviceCache
INFO: Looking for @ControllerAdvice: WebApplicationContext for namespace 'Ecommerce-servlet': startup date [Wed Nov 23 00:41:18 CST 2016]; root of context hierarchy
Nov 23, 2016 12:41:20 AM org.springframework.web.servlet.handler.AbstractUrlHandlerMapping registerHandler
INFO: Mapped URL path [/Resources/**] onto handler 'org.springframework.web.servlet.resource.ResourceHttpRequestHandler#0'
Nov 23, 2016 12:41:20 AM org.springframework.web.servlet.FrameworkServlet initServletBean
INFO: FrameworkServlet 'Ecommerce': initialization completed in 2089 ms
Nov 23, 2016 12:41:21 AM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-nio-8080"]
Nov 23, 2016 12:41:21 AM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-nio-8009"]
Nov 23, 2016 12:41:21 AM org.apache.catalina.startup.Catalina start
INFO: Server startup in 5855 msI dont see any error in tomcat output. I expected something similar to appear
INFO: Mapped URL path [/welcome] onto handler HelloWorld.
I have no clue what's wrong. Can anyone please point out what I am missing ?
Thanks in advance.
回答1:
I think you have mixed here:
If your project name is rest and you are deploying it as rest.war then you don't need this line in web.xml
<url-pattern>/rest/</url-pattern>
change it to
<url-pattern>/</url-pattern>
but if you are running it with ROOT.war and you want /rest in url then you have to do as below:
@Controller
@RequestMapping("/rest")
public class HelloWorld {
and then access with below url: localhost:8080//rest/welcome
回答2:
Try following,
@RequestMapping("/welcome", method = RequestMethod.GET)
public ModelAndView helloWorld() {...
Make sure your mapping is,
<servlet-mapping>
<servlet-name>Ecommerce</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
Customize your default servlet name as,
<mvc:default-servlet-handler default-servlet-name="Ecommerce"/>
URL to try : localhost:8080/Ecommerce/welcome
来源：https://stackoverflow.com/questions/40757899/spring-mvc-controller-mapping-does-not-work