Spring4.0学习笔记(9) —— Spring泛型依赖注入
1、定义基础仓库
package com.spring.generic.di; public class BaseRepository<T> { }
2、定义基础服务层
package com.spring.generic.di; import org.springframework.beans.factory.annotation.Autowired; public class BaseService<T> { @Autowired protected BaseRepository<T> repository; public void add(){ System.out.println("add..."); System.out.println(repository); } }
3、定义User服务层
package com.spring.generic.di; import org.springframework.stereotype.Service; @Service public class UserService extends BaseService<User>{ }
4、定义仓库服务层
package com.spring.generic.di; import org.springframework.stereotype.Repository; @Repository public class UserRepository extends BaseRepository<User>{ }
5、测试类
package com.spring.generic.di; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; public class Main { public static void main(String[] args) { ApplicationContext ctx = new ClassPathXmlApplicationContext("bean-generic.xml"); UserService userService = (UserService)ctx.getBean("userService"); userService.add(); } }
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