<bean id="UserDAO" class="dao.UserDAO">
    <property name="sessionFactory">
    <ref bean="sessionFactory" />
    </property>
</bean>

<bean id="AdminRegAction" class="action.AdminRegAction">
    <property name="userDAO">
        <ref bean="UserDAO"/>
    </property>
</bean>    

action里：

private UserDAO userDAO;
public UserDAO getUserDAO() {
    return userDAO;
}
public void setUserDAO(UserDAO userDAO) {
    this.userDAO = userDAO;
}
public String adminReg(){
User user = new User();
。。。。。。
userDAO.save(user);
return "success";
}

这样的流程对吗？

我一直看不明白，一扯到数据库操作就完蛋
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
java.lang.NullPointerException
    action.AdminRegAction.adminReg(AdminRegAction.java:91)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    java.lang.reflect.Method.invoke(Method.java:597)
    com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:441)
    com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:280)
    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:243)
        。。。。。。
    就到这句userDAO.save(user);

我怀疑我的bean文件有问题，但是一直找不出来毛病

我输出了一下userDAO，但是显示是null不是一个对象，应该是我这个dao没在bean文件里，但是不知道怎么修改。。

    <bean id="sessionFactory"
        class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
        <property name="dataSource">
            <ref bean="dataSource" />
        </property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">
                    org.hibernate.dialect.MySQLDialect
                </prop>
            </props>
        </property>
        <property name="mappingResources">
            <list>
                <value>model/User.hbm.xml</value>
                <value>model/Usersearch.hbm.xml</value>
                <value>model/Img.hbm.xml</value></list>
        </property></bean>
    <bean id="UserDAO" class="dao.UserDAO">
        <property name="sessionFactory">
            <ref bean="sessionFactory" />
        </property>
    </bean>
    <bean id="UsersearchDAO" class="dao.UsersearchDAO">
        <property name="sessionFactory">
            <ref bean="sessionFactory" />
        </property>
    </bean>
    <bean id="ImgDAO" class="dao.ImgDAO">
        <property name="sessionFactory">
            <ref bean="sessionFactory" />
        </property>
    </bean>
    <bean id="AdminLoginAction" scope="prototype" class="action.AdminLoginAction">
   
    </bean>
   

    <bean id="AdminRegAction" class="action.AdminRegAction">
        <property name="userDAO">
            <ref bean="UserDAO"/>
        </property>
    </bean>   

bean里就是这样的，您看下有没有问题。。

    <bean id="dataSource"
        class="org.
        <property name="driverClassName"
            value="com.mysql.jdbc.Driver">
        </property>
        <property name="url"
            value="jdbc:mysql://localhost:3306/androidserver">
        </property>
        <property name="username" value="root"></property>
    </bean>
    <bean id="sessionFactory"
        class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
        <property name="dataSource">
            <ref bean="dataSource" />
        </property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">
                    org.hibernate.dialect.MySQLDialect
                </prop>
            </props>
        </property>
        <property name="mappingResources">
            <list>
                <value>model/User.hbm.xml</value>
                <value>model/Usersearch.hbm.xml</value>
                <value>model/Img.hbm.xml</value></list>
        </property></bean>

没有粘上来而已。。

我在上边写了没有粘出来而已

是啊，看来要去哪个企业找大佬了

是啊，看来要去哪个企业找大佬了