insert时不发sql,update时发了sql

在insert时不发sql,update时发了sql
代码如下:
jsp页面
<html:form action="/insertCity" method="post">
城市ID:<html:text property="citypk"/><html:errors property="citypk"/><br/>
       城市名称 : <html:text property="name"/><html:errors property="name"/><br/>
简码 : <html:text property="shortcode"/><html:errors property="shortcode"/><br/>
编码 : <html:text property="code"/><html:errors property="code"/><br/>
      <html:hidden property="status" value="insert"/>
      <html:hidden property="type" value="1"/>
      <html:submit value="添加"/><html:reset value="重置"/>
</html:form>

action

public class InsertCityAction extends DispatchAction {
private ICityDAO icitydao;


public ActionForward insert(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
InsertCityForm insertCityForm = (InsertCityForm) form;

String code=insertCityForm.getCode();
String shortcode=insertCityForm.getShortcode();

TCity tcity=null;


try {
tcity=new TCity();
tcity.setCityPk(insertCityForm.getCitypk());
tcity.setName(insertCityForm.getName());
tcity.setCode(insertCityForm.getCode());
tcity.setShortcode(insertCityForm.getShortcode());
tcity.setDr(0);

this.icitydao.insert(tcity);
return mapping.findForward("insertcitysuccess");
} catch (Exception e) {
e.printStackTrace();
request.setAttribute("insertcityflag", "true");
return mapping.getInputForward();
}

}

public ICityDAO getIcitydao() {
return icitydao;
}

public void setIcitydao(ICityDAO icitydao) {
this.icitydao = icitydao;
}
}

DAO部分
public interface ICityDAO {
public boolean insert(TCity tcity) throws Exception;
}

DAOImpl部分:

public class ICityDAOImpl extends HibernateDaoSupport implements ICityDAO {

@Override
public boolean insert(TCity tcity) throws Exception {

boolean flag=false;
try{
super.getSession().save(tcity);
super.getSession().flush();
flag=true;
}catch(Exception e){
e.printStackTrace();
}
System.out.println(flag);
return flag;

}
}

struts-config.xml配置

<action
      attribute="insertCityForm"
      input="/insertCity.jsp"
      name="insertCityForm"
      parameter="status"
      path="/insertCity"
      scope="request"
      type="com.luluto.struts.action.InsertCityAction">
      <forward name="insertcityfailure" path="/insertcityfailure.jsp" />
      <forward name="insertcitysuccess" path="/insertcitysuccess.jsp" />
</action>

applicationContext.xml的配置
        <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.SQLServerDialect
    </prop>
    <prop key="hibernate.connection.autocommit">true</prop>
    <!-- 显示sql语句 -->
    <prop key="hibernate.show_sql">true</prop>

</props>
</property>
<property name="mappingResources">
<list>
<value>com/luluto/pub/vo/TCity.hbm.xml</value>
<value>com/luluto/pub/vo/TStation.hbm.xml</value>
</list>
</property>
</bean>

<bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate">
<property name="sessionFactory">
<ref bean="sessionFactory"/>
</property>
</bean>
<bean id="icitydao" class="com.luluto.pub.dao.ICityDAO" abstract="true"></bean>
<bean id="icitydaoimpl" class="com.luluto.pub.impl.ICityDAOImpl" parent="icitydao">
<property name="hibernateTemplate">
<ref bean="hibernateTemplate"/>
</property>
</bean>
<bean name="/insertCity" class="com.luluto.struts.action.InsertCityAction">
<property name="icitydao">
<ref bean="icitydaoimpl"/>
</property>
</bean>


TCity.hbm.xml配置部分
<hibernate-mapping>
    <class name="com.luluto.pub.vo.TCity" table="T_CITY">
        <id name="cityPk" type="java.lang.Integer">
            <column name="CITY_PK" />
            <generator class="assigned"></generator>
        </id>
        <property name="code" type="java.lang.String">
            <column name="CODE" length="30" not-null="true" />
        </property>
        <property name="name" type="java.lang.String">
            <column name="NAME" length="30" not-null="true" />
        </property>
        <property name="shortcode" type="java.lang.String">
            <column name="SHORTCODE" length="10" not-null="true" />
        </property>
        <property name="dr" type="java.lang.Integer">
            <column name="DR" not-null="true" />
        </property>
        <set name="TStations" inverse="true">
            <key>
                <column name="CITY_PK" not-null="true" />
            </key>
            <one-to-many class="com.luluto.pub.vo.TStation" />
        </set>
    </class>
</hibernate-mapping>