http://www.cnblogs.com/guzhulangzi/articles/6796317.html 实现功能类似这个 只不过这次用的是注解
1.
1.扫描含有注解的类
<context:component-scan base-package="....">
2.常见的注解
@Component 组件，任意bean
WEB
@Controller web层
@Service service层
@Repository dao层
注入 --> 字段或setter方法
普通值：@Value
引用值：
类型：@Autowired
名称1：@Autowired @Qualifier("名称")
名称2：@Resource("名称")
作用域：@Scope("prototype")
生命周期：
初始化：@PostConstruct
销毁方法：@PreDestroy
1测试类
package com.spring.demo1.TestXmlSettervalue;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class TestIoc {
// public TestIoc name() {
//
// }
//
@Test
public void Test()
{
String xmlPahtString="com/spring/demo1/TestXmlSettervalue/SpringConfig.xml";
ApplicationContext applicationContext = new ClassPathXmlApplicationContext(xmlPahtString);
StudentService userService = (StudentService) applicationContext.getBean("StudentServiceid");
userService.add();
}
}
2.Dao接口
package com.spring.demo1.TestXmlSettervalue;
public interface StudentDao {
public void save();
}
3.Dao接口实现类
package com.spring.demo1.TestXmlSettervalue;
import org.springframework.stereotype.Repository;
import org.springframework.stereotype.Service;
@Repository //注解类
//@Repository("studentdao") 提供名字 bean id=“”
public class StudentDaoImp implements StudentDao {
@Override
public void save() {
// TODO Auto-generated method stub
System.out.print("11111111");
}
}
4.Service接口
package com.spring.demo1.TestXmlSettervalue;
public interface StudentService {
public void add();
}
5.service接口实现类别
package com.spring.demo1.TestXmlSettervalue;
import javax.annotation.Resource;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Service;
@Service("StudentServiceid")
public class StudentServiceImp implements StudentService {
@Autowired //自动根据类型注入
private StudentDao studentDao;
//@Autowired
// @Qualifier("studentdao") //根据名字注入
// public void setStudentDao(StudentDao studentDao) {
// this.studentDao = studentDao;
// }
@Override
public void add() {
// TODO Auto-generated method stub
studentDao.save();
}
}
