框架组合问题集

1、一、 Servlete action is not available说明：这种问题是SSH框架结合使用最长出现的问题。问题现象：2010-9-8 进行SSH组合时出现Servlete action is not available.现象开发环境：项目名(spring3) struts1.0 spring2.0 hibernate3.1分析：项目spring3三大框架部署完后，没有添加log4j。导致项目运行时只提示servletAction is not available !第一步：把log4j.jar 包导入项目spring第二步：设置perties文件log4j.ro

2、otLogger=info,appender1,appender2log4j.appender.appender1=log4j.appender.appender2=log4j.appender.appender1.File=c:log4j.loglog4j.appender.appender1.DatePattern='.'yyyy-MM-dd'.log'log4j.appender.appender1.layout=log4j.appender.appender2.layout=log4j.appender.appender1.layout.Conversi

3、onPattern=%-5p%dyyyy-MM-ddHH:mm:ssMethod:%l%n%m%nlog4j.appender.appender2.layout.ConversionPattern=%r%t%p-%c-%l-%m%n第三步：重新启动服务后，就报一下错误：Log4j.log日志：INFO2010-09-0905:21:38 Method: org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:303)Loading

4、 XML bean definitions from ServletContext resource /WEB-INF/classes/applicationContext.xmlINFO 2010-09-09 05:21:39 Method: org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:393)Bean factory for application context org.springframewor

5、k.web.context.support.XmlWebApplicationContext176343e: org.springframework.beans.factory.support.DefaultListableBeanFactory1d317abINFO 2010-09-09 05:21:40 Method: org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:276)Pre-ins

6、tantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory1d317ab: defining beans ds,sessionfactory,TblFwxxDAO,listdao,listbiz,/list; root of factory hierarchyINFO 2010-09-09 05:21:40 Method: org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.de

7、stroySingletons(DefaultSingletonBeanRegistry.java:282)Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory1d317ab: defining beans ds,sessionfactory,TblFwxxDAO,listdao,listbiz,/list; root of factory hierarchyERROR 2010-09-09 05:21:45 Method: org.springframewor

8、k.web.struts.ContextLoaderPlugIn.init(ContextLoaderPlugIn.java:229)Context initialization failedorg.springframework.beans.factory.BeanCreationException: Error creating bean with name 'ds' defined in ServletContext resource /WEB-INF/classes/applicationContext.xml: Instantiation of bean failed

9、; nested exception is java.lang.NoClassDefFoundError: org/apache/commons/pool/impl/GenericObjectPoolCaused by: java.lang.NoClassDefFoundError: org/apache/commons/pool/impl/GenericObjectPoolat java.lang.Class.getDeclaredConstructors0(Native Method)at java.lang.Class.privateGetDeclaredConstructors(Unk

10、nown 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).第四步：跟据日志提示：java.lang.NoClassDefFoundError: org/apache/commo

11、ns/pool/impl/GenericObjectPool由于未找到org/apache/commons/pool/impl/GenericObjectPool/impl/GenericObjectPool这个类导致Context initialization failed第五步：看到第四步的分析后,检查了项目中的jar包，发现项目中加载框架时没有导入commons-pool.jar包解决办法：从网上下载了commons-pool.jar包后。从新运行就运行正常了。项目spring3的代码如下：项目结构如下：struts-config.xml文件内容如下<?xml version=&q

12、uot;1.0" encoding="UTF-8"?><!DOCTYPE struts-config PUBLIC "-/Apache Software Foundation/DTD Struts Configuration 1.2/EN" "/dtds/struts-config_1_2.dtd"><struts-config><data-sources /><form-beans ><form-bean name=&

13、quot;listForm" type="com.pcx.struts.form.ListForm" /></form-beans><global-exceptions /><global-forwards /><action-mappings ><actionattribute="listForm"name="listForm"path="/list"scope="request" type="org.spring

14、framework.web.struts.DelegatingActionProxy"><forward name="list" path="/list.jsp" /></action></action-mappings><message-resources parameter="com.pcx.struts.ApplicationResources" /> <plug-in className="org.springframework.web.strut

15、s.ContextLoaderPlugIn"> <set-property property="contextConfigLocation" value="/WEB-INF/classes/applicationContext.xml"/> </plug-in></struts-config>说明：红色字体是把struts和spring 集成在一起了applicationContext.xml文件内容如下：<?xml version="1.0" encoding="U

16、TF-8"?><beansxmlns="/schema/beans"xmlns:xsi="/2001/XMLSchema-instance"xsi:schemaLocation="/schema/beans /schema/beans/spring-beans-2.0.xsd"><bean id=&

17、quot;ds" class="mons.dbcp.BasicDataSource"><property name="driverClassName"value="com.microsoft.sqlserver.jdbc.SQLServerDriver"></property><property name="url"value="jdbc:sqlserver:/localhost:1433;databaseName=zf"></prope

18、rty><property name="username" value="sa"></property><property name="password" value="xiaoli82102983"></property></bean><bean id="sessionfactory"class="org.springframework.orm.hibernate3.LocalSessionFactoryBean

19、"><property name="dataSource"><ref bean="ds" /></property><property name="hibernateProperties"><props><prop key="hibernate.dialect"></prop></props></property><property name="mappingResources"><list><value></value></list></property></bean><!- dao -><bean id="TblFwxxDAO" class="com.pcx.hb.entity.TblFwxxDAO"><property name="se