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  • spring07

    关于spring的泛型依赖注入主要是继承等方面的知识

    具体实现的简单的代码如下:

    package bao1;
    
    public class BaseRepository <T>{
    
    }
    package bao1;
    
    import org.springframework.beans.factory.annotation.Autowired;
    
    public class BaseService<T> {
        //这样写注解的话会被子类继承
        @Autowired
        protected BaseRepository<T> repository;
        public void add()
        {
            System.out.println("add>>>>>>>>>");
            System.out.println(repository);
        }
    
    }
    package bao1;
    
    import org.springframework.stereotype.Service;
    
    @Service
    public class UserSrevice  extends BaseService<User> {
    
    }
    package bao1;
    
    public class User {
    
    }
    package bao1;
    
    import org.springframework.stereotype.Repository;
    //交个ioc容器管理
    @Repository
    public class UserRepository extends BaseRepository<User> {
    
    }
    <?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-4.3.xsd">
    <context:component-scan base-package="bao1"></context:component-scan>
    
    </beans>
    package bao1;
    
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.support.ClassPathXmlApplicationContext;
    
    public class Spring {
    
        public static void main(String[] args) {
            // TODO Auto-generated method stub
    ApplicationContext ct=new ClassPathXmlApplicationContext("bean-06.xml");
    UserSrevice userSrevice= (UserSrevice) ct.getBean("userSrevice");
    userSrevice.add();
        }
    
    }

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  • 原文地址:https://www.cnblogs.com/dazhi151/p/12642834.html
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