Spring使用Spring6的JakartaEE的Resource注解完成注入-----Spring框架

ゝ一纸荒年。 2024-03-23 22:15 39阅读 0赞

>     package cn.powernode.service;
>     
>     import cn.powernode.dao.StudentDao;
>     import cn.powernode.dao.impl.StudentDaoImplForMySQL;
>     import jakarta.annotation.Resource;
>     import org.slf4j.Logger;
>     import org.slf4j.LoggerFactory;
>     import org.springframework.stereotype.Service;
>     
>     @Service("studentService")
>     public class StudentService
>     {
>     //    @Resource(name = "studentDaoImplForMySQL")
>         private StudentDao studentDao;
>     //    @Resource(name = "studentDaoImplForMySQL")
>         public void setStudentDao(StudentDao studentDao) {
>             this.studentDao = studentDao;
>         }
>         //不能出现在构造方法上,只能出现在类上方法上属性上
>     //    @Resource(name = "studentDaoImplForMySQL")
>         public StudentService(StudentDao studentDao) {
>             this.studentDao = studentDao;
>         }
>     
>         public void deleteStudent()
>         {
>             studentDao.deleteById();
>         }
>     }
> 
> package cn.powernode.service;  
>   
> import cn.powernode.dao.StudentDao;  
> import cn.powernode.dao.impl.StudentDaoImplForMySQL;  
> import jakarta.annotation.Resource;  
> import org.slf4j.Logger;  
> import org.slf4j.LoggerFactory;  
> import org.springframework.stereotype.Service;  
>   
> @Service("studentService")  
> public class StudentService  
> \{  
> // @Resource(name = "studentDaoImplForMySQL")  
> private StudentDao studentDao;  
> // @Resource(name = "studentDaoImplForMySQL")  
> public void setStudentDao(StudentDao studentDao) \{  
> this.studentDao = studentDao;  
> \}  
> //不能出现在构造方法上,只能出现在类上方法上属性上  
> // @Resource(name = "studentDaoImplForMySQL")  
> public StudentService(StudentDao studentDao) \{  
> this.studentDao = studentDao;  
> \}  
>   
> public void deleteStudent()  
> \{  
> studentDao.deleteById();  
> \}  
> \}  
>

>     <?xml version="1.0" encoding="UTF-8"?>
>     <beans xmlns="http://www.springframework.org/schema/beans"
>            xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>            xmlns:context="http://www.springframework.org/schema/context"
>            xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
>                                 http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
>         <context:component-scan base-package="cn.powernode.dao.impl,cn.powernode.service" use-default-filters="true">
>     
>         </context:component-scan>
>     </beans>
> 
> <?xml version="1.0" encoding="UTF-8"?>  
> <beans xmlns="http://www.springframework.org/schema/beans"  
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
> xmlns:context="http://www.springframework.org/schema/context"  
> xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd  
> http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">  
> <context:component-scan base-package="cn.powernode.dao.impl,cn.powernode.service" use-default-filters="true">  
>   
> </context:component-scan>  
> </beans>

>     package cn.powernode.dao.impl;
>     
>     import cn.powernode.dao.StudentDao;
>     import org.slf4j.Logger;
>     import org.slf4j.LoggerFactory;
>     import org.springframework.stereotype.Repository;
>     
>     @Repository("studentDaoImplForOracle")
>     public class StudentDaoImplForOracle implements StudentDao
>     {
>         private static final Logger logger = LoggerFactory.getLogger(StudentDaoImplForOracle.class);
>         @Override
>         public void deleteById()
>         {
>             logger.info("Oracle数据库正在删除学生信息");
>         }
>     }
> 
> package cn.powernode.dao.impl;  
>   
> import cn.powernode.dao.StudentDao;  
> import org.slf4j.Logger;  
> import org.slf4j.LoggerFactory;  
> import org.springframework.stereotype.Repository;  
>   
> @Repository("studentDaoImplForOracle")  
> public class StudentDaoImplForOracle implements StudentDao  
> \{  
> private static final Logger logger = LoggerFactory.getLogger(StudentDaoImplForOracle.class);  
> @Override  
> public void deleteById()  
> \{  
> logger.info("Oracle数据库正在删除学生信息");  
> \}  
> \}

>     package cn.powernode.dao.impl;
>     
>     import cn.powernode.dao.StudentDao;
>     import org.slf4j.Logger;
>     import org.slf4j.LoggerFactory;
>     import org.springframework.stereotype.Repository;
>     
>     //@Repository("studentDao")
>     public class StudentDaoImplForMySQL implements StudentDao
>     {
>         private static final Logger logger = LoggerFactory.getLogger(StudentDaoImplForMySQL.class);
>         @Override
>         public void deleteById()
>         {
>             logger.info("MySQL数据库正在删除学生信息");
>         }
>     }
> 
> package cn.powernode.dao.impl;  
>   
> import cn.powernode.dao.StudentDao;  
> import org.slf4j.Logger;  
> import org.slf4j.LoggerFactory;  
> import org.springframework.stereotype.Repository;  
>   
> //@Repository("studentDao")  
> public class StudentDaoImplForMySQL implements StudentDao  
> \{  
> private static final Logger logger = LoggerFactory.getLogger(StudentDaoImplForMySQL.class);  
> @Override  
> public void deleteById()  
> \{  
> logger.info("MySQL数据库正在删除学生信息");  
> \}  
> \}

>     package cn.powernode.dao;
>     
>     import org.springframework.stereotype.Repository;
>     
>     @Repository("studentDao")
>     public interface StudentDao
>     {
>         void deleteById();
>     }
> 
> package cn.powernode.dao;  
>   
> import org.springframework.stereotype.Repository;  
>   
> @Repository("studentDao")  
> public interface StudentDao  
> \{  
> void deleteById();  
> \}

>     package com.powernode.spring6.test;
>     
>     import cn.powernode.service.StudentService;
>     import com.powernode.spring6.bean1.MyDataSource;
>     import com.powernode.spring6.bean1.User;
>     import org.junit.Test;
>     import org.powernode.service.OrderService;
>     import org.springframework.context.ApplicationContext;
>     import org.springframework.context.support.ClassPathXmlApplicationContext;
>     
>     public class TestAnnotation
>     {
>         @Test
>         public void TestResource()
>         {
>             ApplicationContext applicationContext = new ClassPathXmlApplicationContext("spring-resource.xml");
>             StudentService studentService = applicationContext.getBean("studentService", StudentService.class);
>             studentService.deleteStudent();
>         }
>         @Test
>         public void TestAutoWired()
>         {
>             ApplicationContext applicationContext = new ClassPathXmlApplicationContext("spring-AutoWired.xml");
>             OrderService orderService = applicationContext.getBean("orderService", OrderService.class);
>             orderService.generate();
>         }
>         @Test
>         public void TestAnnotation()
>         {
>             ApplicationContext applicationContext = new ClassPathXmlApplicationContext("spring.xml");
>         }
>         @Test
>         public void TestDIByAnnotation()
>         {
>             ApplicationContext applicationContext = new ClassPathXmlApplicationContext("spring-di.xml");
>             MyDataSource myDataSource = applicationContext.getBean("myDataSource", MyDataSource.class);
>             System.out.println(myDataSource);
>             User user = applicationContext.getBean("user", User.class);
>             System.out.println(user);
>         }
>     }
> 
> package com.powernode.spring6.test;  
>   
> import cn.powernode.service.StudentService;  
> import com.powernode.spring6.bean1.MyDataSource;  
> import com.powernode.spring6.bean1.User;  
> import org.junit.Test;  
> import org.powernode.service.OrderService;  
> import org.springframework.context.ApplicationContext;  
> import org.springframework.context.support.ClassPathXmlApplicationContext;  
>   
> public class TestAnnotation  
> \{  
> @Test  
> public void TestResource()  
> \{  
> ApplicationContext applicationContext = new ClassPathXmlApplicationContext("spring-resource.xml");  
> StudentService studentService = applicationContext.getBean("studentService", StudentService.class);  
> studentService.deleteStudent();  
> \}  
> @Test  
> public void TestAutoWired()  
> \{  
> ApplicationContext applicationContext = new ClassPathXmlApplicationContext("spring-AutoWired.xml");  
> OrderService orderService = applicationContext.getBean("orderService", OrderService.class);  
> orderService.generate();  
> \}  
> @Test  
> public void TestAnnotation()  
> \{  
> ApplicationContext applicationContext = new ClassPathXmlApplicationContext("spring.xml");  
> \}  
> @Test  
> public void TestDIByAnnotation()  
> \{  
> ApplicationContext applicationContext = new ClassPathXmlApplicationContext("spring-di.xml");  
> MyDataSource myDataSource = applicationContext.getBean("myDataSource", MyDataSource.class);  
> System.out.println(myDataSource);  
> User user = applicationContext.getBean("user", User.class);  
> System.out.println(user);  
> \}  
> \}