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      MyEclipse下struts2、spring、hibernate整合

       旭龍 2011-03-14

      1、MyEclipse下建立新的Web Porject 

      2、Copy Struts2的lib文件到工程的WEB-INF/lib下非*-plugin-2.0.6.jar的所有的包加上struts2-spring- plugin-2.0.6.jar,最小的包可以在struts-2.0.6\apps\struts2-blank-2.0.6\WEB-INF\ lib下找到,不過因為使用Spring、Hiberate那點包是不夠用的 

      3.1、工程名上右鍵->MyEclipse->Add Spring Capabilities點擊出現(xiàn)對話框 

      3.2、由于我用的MyEclipse中Spring的插件是1.2的,所以沒使用MyEclipse下的包,不選擇MyEclipse Libraries 

      3.3、選中Copy checked library contents to project folder (TLDs always copied) 

      3.4、使用默認的Library Folder:/WebRoot/WEB-INF/lib,Next 

      3.5、Folder點周Brower選中項目的WebRoot/WEB-INF/ 

      3.6、點擊Finish 

      4、配置MyEclipse數(shù)據(jù)庫設置 

      4.1、菜單Windows->Preferences->MyEclipse->Database Explorer->Drivers 

      4.2、點擊New設置數(shù)據(jù)庫連接,例: 
      Driver template : Oracle (Thin driver) 
      Driver name : Oracle (Thin driver) 
      Connection URL : jdbc:oracle:thin:@<server>[:<1521>]:<database_name> 
      Driver JARs: ojdbc14.jar 
      Dirver classname : oracle.jdbc.driver.OracleDriver 

      4.3、點擊OK、OK 

      5、忘了Copy Spring 2的jar包到工程中了,不過沒關系,現(xiàn)在Copy也一樣,Copy spring-framework-2.0.3\dist\spring.jar 到/WebRoot/WEB-INF/lib下就可以了,如果想Copy專用的包可以Copy spring-framework-2.0.3\dist\modules下的 

      5.1、菜單Windows->Open perspective->MyEclipse Database Explorer 

      5.2、在DB Brower點右鍵->New 

      5.3、配置例子如下: 
      Profile name: test 
      Driver: Oracle (Thin driver) 
      URL: jdbc:oracle:thin:@127.0.0.1:1521:test 
      User name: test 
      Password: test 
      選中Save password 

      5.4、點擊Finish 

      6.1、配置Hibernate 

      6.2 工程名上右鍵->MyEclipse->Add Hiberate Capabilities點擊出現(xiàn)對話框 

      6.3、選中Copy checked Library Jars to project forlder and add to build-path 點擊Next 

      6.4、選中Spring configuration file (applicationContext.xml)點擊Next 

      6.5、選中Existing Spring configuration file,MyEclipse會幫你自動找到Spring Config文件的 

      6.6、SessionFactory ID填寫sessionFactory點擊Next 

      6.7、Bean Id填寫dataSource,選中DB Profile下剛才建好的test,點擊Next 

      6.8、不選擇Create SessionFactory class?點擊Finish 

      7、這時候會提示你某些類沒發(fā)現(xiàn),Copy commons-dbcp-1.2.1.jar到lib下就OK了 


      8 配置struts.properties文件,指定spring作為struts的IoC容器
      struts.objectFactory = spring
      (1)默認的autowiring模式是:by name
      即如果applicationContext.xml文件中的bean id與struts.xml文件中的action name相同,就
      (2)如果要改為其他模式:
      struts.objectFactory.spring.autoWire = name|type|auto|constructor

      例:

      struts.i18n.encoding=ISO-8859-1
      struts.locale=de_DE
      struts.objectFactory=spring
      ### Load custom default resource bundles
      struts.custom.i18n.resources=testmessages
      ### XSLT Cache
      struts.xslt.nocache = true


      9配置web.xml文件,啟動Spring偵聽器
      <listener>
      <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
      </listener>

      10 在WEB-INF目錄下的applicationContext.xml文件
      例:
      <?xml version="1.0" encoding="UTF-8"?>
      <!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www./dtd/spring-beans.dtd">
      <beans default-autowire="autodetect">
      <bean id="personManager" class="com.acme.PersonManager"/>
      </beans >

      11 設置由Spring來初始化action
      11.1  在Spring的applicationContext.xml文件中配置bean(即action類)
      11.2  將struts.xml中的action的class屬性,由class名改為Spring中定義的bean名
      例如:
      (1)applicationContext.xml中,定義bean id是bar
      <beans default-autowire="autodetect">
      <bean id="bar" class="com.my.BarClass" singleton="false"/>
      ...
      </beans>
      (2)struts.xml中,action的class="bar",而不是通常的類名
      <package name="secure" namespace="/secure" extends="default">
      <action name="bar" class="bar">
      <result>bar.ftl</result>
      </action>
      </package >

      啟動運行:
      報錯
      log4j:WARN No appenders could be found for logger (org.springframework.core.CollectionFactory).
      log4j:WARN Please initialize the log4j system properly.
      2008-8-6 9:29:16 org.apache.catalina.core.ApplicationContext log
      信息: Initializing Spring root WebApplicationContext
      2008-8-6 9:29:18 org.apache.catalina.core.StandardContext listenerStart
      嚴重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
      org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Instantiation of bean failed; nested exception is java.lang.NoClassDefFoundError:org/apache/commons/pool/impl/GenericObjectPool
       at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:883)
       at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:839)
       at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:440)
       at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
       at java.security.AccessController.doPrivileged(Native Method)
       at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
       at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
       at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221)
       at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
       at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
       at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
       at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
       at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:729)
       at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:381)
       at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)
       at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199)
       at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45)
       at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3827)
       at org.apache.catalina.core.StandardContext.start(StandardContext.java:4334)
       at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
       at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
       at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
       at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:920)
       at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:883)
       at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
       at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1138)
       at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
       at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
       at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
       at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
       at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
       at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
       at org.apache.catalina.core.StandardService.start(StandardService.java:516)
       at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
       at org.apache.catalina.startup.Catalina.start(Catalina.java:566)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
       at java.lang.reflect.Method.invoke(Unknown Source)
       at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
       at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
      Caused by: java.lang.NoClassDefFoundError: org/apache/commons/pool/impl/GenericObjectPool
       at java.lang.Class.getDeclaredConstructors0(Native Method)
       at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
       at java.lang.Class.getConstructor0(Unknown Source)
       at java.lang.Class.getDeclaredConstructor(Unknown Source)
       at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:54)
       at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:877)
       ... 40 more
      2008-8-6 9:29:18 org.apache.catalina.core.StandardContext start
      嚴重: Error listenerStart
      2008-8-6 9:29:18 org.apache.catalina.core.StandardContext start
      嚴重: Context [/ssh] startup failed due to previous errors

      原因:
      找不到 Caused by: java.lang.NoClassDefFoundError: org/apache/commons/pool/impl/GenericObjectPool
      就Apache所提供的基本對象池。

      解決:
      到這里http://commons./downloads/download_pool.cgi下載包,然后,把里面的commons-pool-x.jar復制到項目的lib文件夾下

      錯誤:
      log4j:WARN No appenders could be found for logger (org.springframework.core.CollectionFactory).
      log4j:WARN Please initialize the log4j system properly.

      解決:
      在WEB-INF/class 目錄下建立一個log4j.properties文件,內(nèi)容如下: 
      log4j.rootLogger=DEBUG,stdout 
      log4j.appender.stdout=org.apache.log4j.ConsoleAppender 
      log4j.appender.stdout.layout=org.apache.log4j.PatternLayout 
      log4j.appender.stdout.layout.ConversionPattern=%d %5p (%F:%L) - %m%n 

      警告:

      信息: Starting Servlet Engine: Apache Tomcat/6.0.13
      log4j:WARN No appenders could be found for logger (org.apache.struts.util.PropertyMessageResources).
      log4j:WARN Please initialize the log4j system properly.
      2008-8-6 9:40:09 org.apache.catalina.core.ApplicationContext log
      信息: Initializing WebApplicationContext for Struts ActionServlet 'action', module ''
      2008-08-06 09:40:29,859 DEBUG (CollectionFactory.java:195) - Creating [java.util.concurrent.ConcurrentHashMap]
       2008-8-6 9:40:29 org.apache.catalina.core.ApplicationContext log
      信息: Initializing Spring root WebApplicationContext
      2008-08-06 09:40:29,906  INFO (ContextLoader.java:189) - Root WebApplicationContext: initialization started
       2008-08-06 09:40:30,203  INFO (AbstractApplicationContext.java:412) - Refreshing org.springframework.web.context.support.XmlWebApplicationContext@1df59bd: display name [Root WebApplicationContext]; startup date [Wed Aug 06 09:40:30 CST 2008]; root of context hierarchy
       2008-08-06 09:40:30,406 DEBUG (CollectionFactory.java:195) - Creating [java.util.concurrent.ConcurrentHashMap]


      index.jsp

      <%@ page language="java" pageEncoding="GBK"%>
      <%@ taglib prefix="s" uri="/struts-tags"%>
      <html>
       <head>
        <title>登錄</title>
        <style type="text/css">
      .label {
       font-style: italic;
      }

      .errorLabel {
       font-style: italic;
       color: red;
      }

      .errorMessage {
       font-weight: bold;
       color: red;
      }
      </style>
       </head>
       <s:head theme="ajax" />
       <body>
       <s:debug>
        <s:form action="First">
         <s:textfield name="username" label="用戶名" />
         <s:textfield name="password" label="密碼" />
         <s:submit value="登錄" />
         <s:a href="First.action">登錄</s:a>
        </s:form>
      </s:debug>
       </body>
      </html>



      BUG:
      2008-8-6 10:58:02 org.apache.catalina.core.StandardWrapperValve invoke
      嚴重: Servlet.service() for servlet jsp threw exception
      The Struts dispatcher cannot be found.  This is usually caused by using Struts tags without the associated filter. Struts tags are only usable when the request has passed through its servlet filter, which initializes the Struts dispatcher needed for this tag. - [unknown location]
       at org.apache.struts2.views.jsp.TagUtils.getStack(TagUtils.java:60)
       at org.apache.struts2.views.jsp.StrutsBodyTagSupport.getStack(StrutsBodyTagSupport.java:52)
       at org.apache.struts2.views.jsp.ComponentTagSupport.doStartTag(ComponentTagSupport.java:49)
       at org.apache.jsp.index_jsp._jspx_meth_s_005fhead_005f0(index_jsp.java:126)
       at org.apache.jsp.index_jsp._jspService(index_jsp.java:94)
       at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
       at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
       at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
       at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
       at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
       at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
       at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
       at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
       at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
       at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:261)
       at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
       at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:581)
       at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
       at java.lang.Thread.run(Unknown Source)

      解決:web.xml添加
      <filter>
        <filter-name>struts2</filter-name>
        <filter-class>
         org.apache.struts2.dispatcher.FilterDispatcher
        </filter-class>
       </filter>
       <filter-mapping>
        <filter-name>struts2</filter-name>
        <url-pattern>/*</url-pattern>
       </filter-mapping>

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