注解配置springMVC问题求指导

码拜

8年 ago

最近在自学springMVC 基于注解配置时出现问题，不知道怎么回事，各位高手麻烦帮本人看看
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_2_5.xsd” id=”WebApp_ID” version=”2.5″>
<display-name>springMVC01</display-name>
<servlet>
<servlet-name>springMVC01</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springMVC.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>springMVC01</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<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>
</web-app>
springMVC.xml
<beans xmlns=”http://www.springframework.org/schema/beans”
xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance” xmlns:mvc=”http://www.springframework.org/schema/mvc”
xmlns:context=”http://www.springframework.org/schema/context”
xmlns:aop=”http://www.springframework.org/schema/aop” xmlns:tx=”http://www.springframework.org/schema/tx”
xsi:schemaLocation=”http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.2.xsd “>
<mvc:annotation-driven />
<context:component-scan base-package=”com.test.controller” />
</beans>
controller:
package com.test.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
//实现controller接口的处理器
@Controller
public class Controller2{
@RequestMapping(value=”/sayHello”)
public ModelAndView sayHello() throws Exception {
System.out.println(“hello”);
ModelAndView mav = new ModelAndView();
mav.addObject(“hello”, “hello springMVC”);
mav.setViewName(“WEB-INF/jsp/success.jsp”);
return mav;
}
}
错误信息
HTTP Status 500 – Servlet.init() for servlet springMVC01 threw exception
type Exception report
message Servlet.init() for servlet springMVC01 threw exception
description The server encountered an internal error that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: Servlet.init() for servlet springMVC01 threw exception
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861)
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:612)
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:503)
java.lang.Thread.run(Unknown Source)
root cause
org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: file [E:\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\springMVC01\WEB-INF\classes\com\test\controller\Controller2.class]; nested exception is java.lang.IllegalArgumentException
org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:281)
org.springframework.context.annotation.ClassPathBeanDefinitionScanner.doScan(ClassPathBeanDefinitionScanner.java:242)
org.springframework.context.annotation.ComponentScanBeanDefinitionParser.parse(ComponentScanBeanDefinitionParser.java:84)
org.springframework.beans.factory.xml.NamespaceHandlerSupport.parse(NamespaceHandlerSupport.java:73)
org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1435)
org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1425)
org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:184)
org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.doRegisterBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:140)
org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:111)
org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registerBeanDefinitions(XmlBeanDefinitionReader.java:493)
org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:390)
org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:334)
org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:302)
org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:174)
org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:209)
org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:180)
org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:125)
org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:94)
org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:131)
org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:537)
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:451)
org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:647)
org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:598)
org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:661)
org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:517)
org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:458)
org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:138)
javax.servlet.GenericServlet.init(GenericServlet.java:212)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861)
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:612)
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:503)
java.lang.Thread.run(Unknown Source)

解决方案

mav.setViewName(“WEB-INF/jsp/success.jsp”);这里设置错了，指定文件名就行了，而且路径也不用写全，相对于你mvc里的前缀路径就行了。

<bean
class=”org.springframework.web.servlet.view.InternalResourceViewResolver”
p:prefix=”/WEB-INF/views/” p:suffix=”.jsp” />
你不配置视图解析吗?

引用:

Quote: 引用:
<bean
class=”org.springframework.web.servlet.view.InternalResourceViewResolver”
p:prefix=”/WEB-INF/views/” p:suffix=”.jsp” />
你不配置视图解析吗?

本人的理解是这样的，就算不配视图解析器，不是有默认的吗？而且假如是试图解析器的原因的话，本人控制器中的断点应该可以进去，现在进不去，求指导

你先配置一个视图解析试试看. 不配置视图解析,spring mvc怎么知道你要使用哪种页面技术?modelandview.setViewName()是设置的视图名称.

可能在web.xml中<servlet></servlet>中少了<load-on-startup>1</load-on-startup>

javax.servlet.ServletException: Servlet.init() for servlet springMVC01 threw exception
init方法异常，加一句试试：

<servlet>
  	<servlet-name>springMVC01</servlet-name>
  	<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  	<init-param>
  	<param-name>contextConfigLocation</param-name>
  	<param-value>classpath:springMVC.xml</param-value>
  	</init-param>
        <load-on-startup>1</load-on-startup>
  </servlet>

视图解析器要配，你那个servlet也要加<load-on-startup>1</load-on-startup>