SSI框架研究了N久后，开始试着搭建简单的小功能，经历的什么找不到，那个不可以，这个定义不正确等等让人崩溃的异常后，终于是有个页面出来了，但我一点，你妹的有给了我个空指针异常！！！折腾近两天了，发现该异常是由于spring依赖注入没有成功导致的，但看配置文件看了几百遍都没有看出错在哪里……
现贴出配置文件如下：
web.xml<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_9" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> <!-- 配置Spring -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
classpath:/applicationContext.xml
</param-value>
</context-param>
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<display-name>Struts Blank</display-name> <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> <welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list></web-app>
struts.xml<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<constant name="struts.objectTypeDeterminer" value="notiger" />
<constant name="struts.objectFactory" value="spring" />
<constant name="struts.objectFactory.spring.autoWire" value="name" />
<package name="test" namespace="/test" extends="struts-default">
<action name="select" class="test.User">
<result>/test/result.jsp</result>
</action>
<!--
<action name="insert" class="test.userDAO">
<result>/test/result.jsp</result>
</action>
-->
</package>
</struts>
applicationContext.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: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-2.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd"> <bean id="dataSource"
class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="oracle.jdbc.driver.OracleDriver" />
<property name="url"
value="jdbc:oracle:thin:@localhost:1521:orcl" />
<property name="username" value="system" />
<property name="password" value="+1101+" />
</bean>
<!-- spring的ibatis 配制 -->
<bean id="sqlMapClient"
class="org.springframework.orm.ibatis.SqlMapClientFactoryBean">
<property name="configLocation" value="classpath:/sqlMapConfig.xml" />
<property name="dataSource" ref="dataSource" />
</bean>
<!-- spring 的事务处理类配置 -->
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource">
<ref local="dataSource" />
</property>
</bean>
<!-- 实体DAO类 -->
<bean id="userDAO" class="test.UserDAO">
<property name="sqlMapClient">
<ref local="sqlMapClient" />
</property>
</bean>
<!-- Struts2 action类 -->
<bean id="user" class="test.User" >
<property name="userdao">
<ref bean="userDAOProxy"/>
</property>
</bean>
<bean id="name" class="test.User">
<property name="name" value="张大三"/>
</bean>
<!-- 实体DAO类的代理类 -->
<bean id="userDAOProxy"
class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
<property name="transactionManager">
<ref bean="transactionManager" />
</property>
<property name="target">
<ref local="userDAO" />
</property>
<property name="transactionAttributes">
<props>
<prop key="insert*">PROPAGATION_REQUIRED</prop>
<prop key="select*">PROPAGATION_REQUIRED</prop>
<prop key="delete*">PROPAGATION_REQUIRED</prop>
<prop key="update*">PROPAGATION_REQUIRED</prop>
<prop key="get*">PROPAGATION_REQUIRED,readOnly</prop>
</props>
</property>
</bean>
</beans>
sqlMapConfig.xml<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE sqlMap PUBLIC "-//ibatis.apache.org//DTD SQL Map 2.0//EN"
"http://ibatis.apache.org/dtd/sql-map-2.dtd">
<sqlMap namespace="test">
<resultMap id="User-result-list"
class="test.User"> <result property="id" column="ID" /> <result property="name" column="name" /> <result property="sex" column="sex" /> </resultMap>
<select id="selectUser" resultMap="User-result-list">
select id,name,sex from test
</select></sqlMap>
User.java
package test;import java.util.List;
import javax.servlet.http.HttpServletRequest;
import com.opensymphony.xwork2.ActionSupport;
import org.apache.struts2.ServletActionContext;
import javax.annotation.Resource;
@Resource(name="user")
public class User extends ActionSupport {
private String id;
private String name;
private String sex;
@Resource
private IuserDAO userdao;
private List userList;
//省略各种setter,getter方法……
public void setUserdao(IuserDAO userdao) {
this.userdao = userdao;
}
public String execute() throws Exception
{
HttpServletRequest request = ServletActionContext.getRequest();
userList = userdao.selectUser();
request.setAttribute("userList",userList);
return SUCCESS;
}
}
==============================
最后贴上貌似用不上的UserDAO.javapackage test;import java.util.List;
import java.util.ArrayList;import org.springframework.orm.ibatis.support.SqlMapClientDaoSupport;public class UserDAO extends SqlMapClientDaoSupport implements IuserDAO{
public List selectUser()
{
try {
List list = (List) getSqlMapClientTemplate().queryForList(
"selectUser");
return list;
} catch (Exception e) {
e.printStackTrace();
}
List list2=new ArrayList();
list2.add("aaa");
return list2;
}
}经调试发现程序根本没走这个悲催的UserDAO
现贴出配置文件如下：
web.xml<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_9" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> <!-- 配置Spring -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
classpath:/applicationContext.xml
</param-value>
</context-param>
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<display-name>Struts Blank</display-name> <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> <welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list></web-app>
struts.xml<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<constant name="struts.objectTypeDeterminer" value="notiger" />
<constant name="struts.objectFactory" value="spring" />
<constant name="struts.objectFactory.spring.autoWire" value="name" />
<package name="test" namespace="/test" extends="struts-default">
<action name="select" class="test.User">
<result>/test/result.jsp</result>
</action>
<!--
<action name="insert" class="test.userDAO">
<result>/test/result.jsp</result>
</action>
-->
</package>
</struts>
applicationContext.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: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-2.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd"> <bean id="dataSource"
class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="oracle.jdbc.driver.OracleDriver" />
<property name="url"
value="jdbc:oracle:thin:@localhost:1521:orcl" />
<property name="username" value="system" />
<property name="password" value="+1101+" />
</bean>
<!-- spring的ibatis 配制 -->
<bean id="sqlMapClient"
class="org.springframework.orm.ibatis.SqlMapClientFactoryBean">
<property name="configLocation" value="classpath:/sqlMapConfig.xml" />
<property name="dataSource" ref="dataSource" />
</bean>
<!-- spring 的事务处理类配置 -->
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource">
<ref local="dataSource" />
</property>
</bean>
<!-- 实体DAO类 -->
<bean id="userDAO" class="test.UserDAO">
<property name="sqlMapClient">
<ref local="sqlMapClient" />
</property>
</bean>
<!-- Struts2 action类 -->
<bean id="user" class="test.User" >
<property name="userdao">
<ref bean="userDAOProxy"/>
</property>
</bean>
<bean id="name" class="test.User">
<property name="name" value="张大三"/>
</bean>
<!-- 实体DAO类的代理类 -->
<bean id="userDAOProxy"
class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
<property name="transactionManager">
<ref bean="transactionManager" />
</property>
<property name="target">
<ref local="userDAO" />
</property>
<property name="transactionAttributes">
<props>
<prop key="insert*">PROPAGATION_REQUIRED</prop>
<prop key="select*">PROPAGATION_REQUIRED</prop>
<prop key="delete*">PROPAGATION_REQUIRED</prop>
<prop key="update*">PROPAGATION_REQUIRED</prop>
<prop key="get*">PROPAGATION_REQUIRED,readOnly</prop>
</props>
</property>
</bean>
</beans>
sqlMapConfig.xml<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE sqlMap PUBLIC "-//ibatis.apache.org//DTD SQL Map 2.0//EN"
"http://ibatis.apache.org/dtd/sql-map-2.dtd">
<sqlMap namespace="test">
<resultMap id="User-result-list"
class="test.User"> <result property="id" column="ID" /> <result property="name" column="name" /> <result property="sex" column="sex" /> </resultMap>
<select id="selectUser" resultMap="User-result-list">
select id,name,sex from test
</select></sqlMap>
User.java
package test;import java.util.List;
import javax.servlet.http.HttpServletRequest;
import com.opensymphony.xwork2.ActionSupport;
import org.apache.struts2.ServletActionContext;
import javax.annotation.Resource;
@Resource(name="user")
public class User extends ActionSupport {
private String id;
private String name;
private String sex;
@Resource
private IuserDAO userdao;
private List userList;
//省略各种setter,getter方法……
public void setUserdao(IuserDAO userdao) {
this.userdao = userdao;
}
public String execute() throws Exception
{
HttpServletRequest request = ServletActionContext.getRequest();
userList = userdao.selectUser();
request.setAttribute("userList",userList);
return SUCCESS;
}
}
==============================
最后贴上貌似用不上的UserDAO.javapackage test;import java.util.List;
import java.util.ArrayList;import org.springframework.orm.ibatis.support.SqlMapClientDaoSupport;public class UserDAO extends SqlMapClientDaoSupport implements IuserDAO{
public List selectUser()
{
try {
List list = (List) getSqlMapClientTemplate().queryForList(
"selectUser");
return list;
} catch (Exception e) {
e.printStackTrace();
}
List list2=new ArrayList();
list2.add("aaa");
return list2;
}
}经调试发现程序根本没走这个悲催的UserDAO
==============================
严重: Servlet.service() for servlet [default] in context with path [/FK_SSI] threw exception [java.lang.NullPointerException] with root cause
java.lang.NullPointerException
at test.User.execute(User.java:60)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:404)
at com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:267)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:229)
at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:221)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:150)
at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:48)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:123)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:184)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:105)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:83)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:207)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:74)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:127)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
at org.apache.struts2.interceptor.ProfilingActivationInterceptor.intercept(ProfilingActivationInterceptor.java:107)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
=======================
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:206)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:115)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:143)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:121)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:170)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:123)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:176)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:50)
at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:507)
at org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:421)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:242)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:201)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:163)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:108)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:556)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:401)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:242)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:267)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:245)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:260)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
<constant name="struts.objectTypeDeterminer" value="notiger" />
<constant name="struts.objectFactory" value="spring" />
<constant name="struts.objectFactory.spring.autoWire" value="name" /> 是这部分吗？？？这段是刚刚在网上看到的，不懂什么意思，然后直接贴上去的，刚刚试过了
只用
<constant name="struts.objectFactory" value="spring" />
也不对………………
再测试是否有问题；
我的是这样的
<a href="<s:url action="/test/select"/>">点我看结果</a>
class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
<property name="transactionManager">
<ref bean="transactionManager" />
</property>
<property name="target"> //应该不是在这里进行DAO的注入。应当提到UERS下。
<ref local="userDAO" />
</property>
<property name="transactionAttributes">
<props>
<prop key="insert*">PROPAGATION_REQUIRED</prop>
<prop key="select*">PROPAGATION_REQUIRED</prop>
<prop key="delete*">PROPAGATION_REQUIRED</prop>
<prop key="update*">PROPAGATION_REQUIRED</prop>
<prop key="get*">PROPAGATION_REQUIRED,readOnly</prop>
</props>
</property>
</bean>
你把
<property name="userdao">
<ref bean="userDAOProxy"/>
</property>
改为：
<property name="userdao">
<ref bean="userDAO"/>
</property>
先测试下；
class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
<property name="transactionManager">
<ref bean="transactionManager" />
</property> 这个应该是一个事务代理吧。没有对单元DAO的组合，应该用不到这个事务代理。
JSP/Servlet是在Web服务器上解释的；
HTML是在浏览器上解释的；
就可以了；
经证明程序根本就没走userDAO类，所以没办法实现注入
总感觉struts与spring间应该有个交接，但就是不知道该怎么交接
对对对，我也感觉是这样，但不知道该怎么对DAO注入，还有“对单元DAO的组合”是什么意思，初学，不太懂，别笑我，哈哈
<!-- Struts2 action类 -->
<bean id="user" class="test.User" >
<property name="userdao">
<ref bean="userDAO"/>
</property>
</bean>
<!-- 实体DAO类的代理类 -->
<bean id="userDAOProxy"
class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
<property name="transactionManager">
<ref bean="transactionManager" />
</property>
<property name="transactionAttributes">
<props>
<prop key="insert*">PROPAGATION_REQUIRED</prop>
<prop key="select*">PROPAGATION_REQUIRED</prop>
<prop key="delete*">PROPAGATION_REQUIRED</prop>
<prop key="update*">PROPAGATION_REQUIRED</prop>
<prop key="get*">PROPAGATION_REQUIRED,readOnly</prop>
</props>
</property>
</bean>
</beans><bean id="USERBizProxy" parent="userDAOProxy">
<property name="target" ref="user"></property>
</bean>
要用到这个代理类也该这么写，你的三层少了一层。
你的 UserDAO 实现的接口为IuserDAO ，那么
1.将你的sqlMapConfig.xml 改为“IuserDAO.xml”
2.<sqlMap namespace="test">改为 <sqlMap namespace="test.IuserDAO">否则xml找不到对应的接口
我直接用
<bean id="name" class="test.User">
<property name="name" value="张大三"/>
</bean>
注入然后在User类中输出name都没有值，感觉问题还是出在struts托管spring的部分，SSI用不用在ACTION部分实例化spring容器然后getBean啊？如果不用到底该如何配置？？我真都疯了
<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"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
<!--数据源-->
<bean id="dataSource"
class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName"
value="com.microsoft.sqlserver.jdbc.SQLServerDriver">
</property>
<property name="url" value="jdbc:sqlserver://localhost:1433"></property>
<property name="username" value="sa"></property>
</bean>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="configLocation"
value="file:src/hibernate.cfg.xml">
</property>
<property name="dataSource" ref="dataSource"></property>
</bean>
<!--DAO类单元操作-->
<bean id="BankDAO" class="com.aminy.dao.impl.BankDAO">
<property name="sessionFactory">
<ref bean="sessionFactory" />
</property>
</bean>
<!--业务组合操作 何以进行多个DAO的注入 来实现复杂操作-->
<bean id="zhuanzhangBiz" class="com.aminy.biz.impl.Zhuanzhang">
<property name="bankDAO" ref="BankDAO"></property>
</bean>
<!--事务管理类-->
<bean id="tm" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
<!--事务代理工厂类-->
<bean id="abstractProxy" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean" abstract="true">
<property name="transactionManager" ref="tm"></property>
<property name="transactionAttributes">
<props>
<prop key="*">PROPAGATION_REQUIRED</prop>
</props>
</property>
</bean>
<!--具体业务的事务代理，使业务组合操作的事务收事务代理的控制-->
<bean id="zhuanzhangBizProxy" parent="abstractProxy">
<property name="target" ref="zhuanzhangBiz"></property>
</bean>
</beans>
<bean id="name" class="test.User">
<property name="name" value="张大三"/>
</bean>引用得有SET方法吧
你这里是在Action中没有setName方法；不是很了解Strtus2;但是看你这里的配置是：
<constant name="struts.objectFactory" value="spring" />
<constant name="struts.objectFactory.spring.autoWire" value="name" />
spring会根据name注入，你注释下面的配置：
<!-- Struts2 action类 -->
<!-- <bean id="user" class="test.User" >
<property name="userdao">
<ref bean="userDAOProxy"/>
</property>
</bean>
<bean id="name" class="test.User">
<property name="name" value="张大三"/>
</bean>-->
同时把
<bean id="userDAO" class="test.UserDAO">
改为：
<bean id="userdao" class="test.UserDAO">
在测试；
<!-- <bean id="user" class="test.User" >
<property name="userdao">
<ref bean="userDAOProxy"/>
</property>
</bean>
<bean id="name" class="test.User">
<property name="name" value="张大三"/>
</bean>
这是注册两个User BEAN了。你赋值的是名为“name”的这个USER实例。而你使用的是user这个实例，当然没有那些属性的赋值。
把
<bean id="userDAO" class="test.UserDAO">
改为：
<bean id="userdao" class="test.UserDAO">就是大小写的问题，但是为什么会这样啊，太神奇了
我也是刚入JAVA不久，以后还要相互学习，共同进步啊。哈哈。
你得会看 配置文件。这个很关键。ID 就是个别名，表名了 需要注入的是那个确定的JAVA类。不是大小写的问题，那个ID代表了你要注入的具体的bean.再好好理解下，配那个就不难了。