spring注入为空

Posted 2023-04-17

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spring 配置：
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName" value="oracle.jdbc.driver.OracleDriver"/>
<property name="username" value="ssi"/>
<property name="password" value="ssi"/>
<property name="url" value="jdbc:oracle:thin:@localhost:1521:xe"/>
<property name="initialSize" value="1"/>
<property name="maxActive" value="4"/>
</bean>

<bean id="sqlMapClient" class="org.springframework.orm.ibatis.SqlMapClientFactoryBean">
<property name="configLocation" value="classpath:SqlMapConfig.xml">
</property>
<property name="dataSource" ref="dataSource">
</property>
</bean>

<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>

<bean id="sqlMapClientProxyFactoryBean" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean" abstract="true">
<property name="transactionManager" ref="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>

<bean id="sqlMapClientTemplate" class="org.springframework.orm.ibatis.SqlMapClientTemplate">
<property name="sqlMapClient" ref="sqlMapClient"></property>
</bean>

<bean id="userDao" class="com.soft.ssi.dao.UserDaoImpl">
<property name="sqlMapClientTemplate" ref="sqlMapClientTemplate"></property>
</bean>

<bean id="userService" class="com.soft.ssi.service.UserServiceImpl">
<property name="userDao" ref="userDao"></property>
</bean>

<bean id="userServicePrxy" parent="sqlMapClientProxyFactoryBean">
<property name="target" ref="userService"></property>
</bean>

<bean id="UserAction" class="com.soft.ssi.web.UserAction">
<property name="userService" ref="userService"></property>
</bean>

</beans>

action：
public class UserAction extends ActionSupport

private UserService userService;

private UserInfo userInfo;

public UserInfo getUserInfo()
return userInfo;

public void setUserInfo(UserInfo userInfo)
this.userInfo = userInfo;

public UserService getUserService()
return userService;

public void setUserService(UserService userService)
this.userService = userService;

public String execute() throws Exception
return super.execute();

public String regedit() throws Exception

boolean flag = false;
System.out.println(userInfo);
System.out.println(this.userService);
flag = userService.insertUser(userInfo);
if(flag)
return "ok";
else
return "error";

userService对象为空

检查 struts.xml配置中是否正确，以及struts.properties中是否配置了struts.objectFactory=spring 参考技术A 不建议用xml配置注入对象，建议用注解，@components("userService")
@Resource 参考技术B 没有用过sqlMapClientProxyFactoryBean 是不是被代理了，原型找不到了。你跟下代码吧参考技术C userService被代理了