public class TdUserDAO extends BaseHibernateDAO {
public void save(TdUser tdUser) throws HibernateException{
try {
Transaction transaction = getSession().getTransaction();
transaction.begin();
getSession().save(tdUser);
transaction.commit();
} catch (HibernateException e) {
throw e;
}
}
public void delete(TdUser tdUser) throws HibernateException{
try {
Transaction transaction = getSession().getTransaction();
transaction.begin();
getSession().delete(tdUser);
transaction.commit();
} catch (HibernateException e) {
throw e;
}
}
public void attachDirty(TdUser instance) {
try {
getSession().saveOrUpdate(instance);
} catch (RuntimeException re) {
throw re;
}
}
public List findAll() {
try {
String queryString = "from TdUser";
Query queryObject = getSession().createQuery(queryString);
return queryObject.list();
} catch (RuntimeException re) {
throw re;
}
}
public TdUser findById(String id) {
try {
TdUser instance = (TdUser) getSession().get(
"myNewTest.dao.entity.TdUser", id);
return instance;
} catch (RuntimeException re) {
throw re;
}
}
}
public void save(TdUser tdUser) throws HibernateException{
try {
Transaction transaction = getSession().getTransaction();
transaction.begin();
getSession().save(tdUser);
transaction.commit();
} catch (HibernateException e) {
throw e;
}
}
public void delete(TdUser tdUser) throws HibernateException{
try {
Transaction transaction = getSession().getTransaction();
transaction.begin();
getSession().delete(tdUser);
transaction.commit();
} catch (HibernateException e) {
throw e;
}
}
public void attachDirty(TdUser instance) {
try {
getSession().saveOrUpdate(instance);
} catch (RuntimeException re) {
throw re;
}
}
public List findAll() {
try {
String queryString = "from TdUser";
Query queryObject = getSession().createQuery(queryString);
return queryObject.list();
} catch (RuntimeException re) {
throw re;
}
}
public TdUser findById(String id) {
try {
TdUser instance = (TdUser) getSession().get(
"myNewTest.dao.entity.TdUser", id);
return instance;
} catch (RuntimeException re) {
throw re;
}
}
}
public TdUser getTdUser(String id);
public List getAllTdUser();
public boolean addTdUser(TdUser tdUser);
public boolean deleteTdUser(String id);
public boolean editTdUser(TdUser tdUser);
}
public class TdUserService implements ITdUserService{ private TdUserDAO tdUserDAO;
public TdUserDAO getTdUserDAO() {
return tdUserDAO;
} public void setTdUserDAO(TdUserDAO tdUserDAO) {
this.tdUserDAO = tdUserDAO;
} public boolean addTdUser(TdUser tdUser) {
// TODO Auto-generated method stub
getTdUserDAO().save(tdUser);
System.out.println("增加用户:"+tdUser.getEmpName()+"成功");
return true;
} public boolean deleteTdUser(String id) {
// TODO Auto-generated method stub
TdUser user = new TdUser();
user.setEmpId(id);
getTdUserDAO().delete(user);
return true;
} public boolean editTdUser(TdUser tdUser) {
Transaction tran= getTdUserDAO().getSession().beginTransaction();
getTdUserDAO().getSession().update(tdUser);
tran.commit();
System.out.println("修改用户:"+tdUser.getEmpName()+"成功");
// 模拟网络延迟, 停2秒
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return true;
} public List getAllTdUser() {
return getTdUserDAO().findAll();
} public TdUser getTdUser(String id) {
// TODO Auto-generated method stub
return getTdUserDAO().findById(id);
}}
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">
<bean id="userDAO" class="myNewTest.dao.TdUserDAO"/>
<bean id="userservice" class="myNewTest.ServiceImpl.TdUserService">
<property name="tdUserDAO">
<ref bean="userDAO"/>
</property>
</bean></beans>单步调试发现
public void setTdUserDAO(TdUserDAO tdUserDAO) {
this.tdUserDAO = tdUserDAO;
}
里tdUserDAO为null
应该是注入没有成功,请高手指点下问题出在哪了
在doPost里调用ITdUserService userService = new TdUserService();这里单步进去的
Transaction 是那个包的?
设置监听器没有?
public class HelloWorld {
public String nameString; public String getNameString() {
return nameString;
} public void setNameString(String nameString) {
this.nameString = nameString;
}
public static void main(Object arg[]){
}
}applicationContext.xml<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC
"-//SPRING//DTD BEAN//EN"
"http://www.springframework.org/dtd/spring-beans.dtd"><beans>
<bean id="helloworld" class="springTest.HelloWorld">
<property name="nameString">
<value>World</value>
</property>
</bean>
</beans>web.xml<?xml version="1.0" encoding="UTF-8"?>
<web-app 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"> <listener>
<listener-class> org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>然后在index.jsp里调用
<% HelloWorld hello = new HelloWorld();
out.println("Hello " + hello.getNameString());
%>
返回hello.getNameString()一直为null