标签：framework one system frame use sch version lap []
主要讲泛型依赖注入，所以核心在java文件，配置文件中只需配置扫描包即可，如下：
<?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="spring.beans.generic.di"></context:component-scan> </beans>
spring.beans.generic.di包中有两个配置的泛型的父类，有两个继承这两个父类的子类，还有一个实体bean，先看实体bean：
由于只是模拟一下，没必要写属性，创建一个类即可。
package spring.beans.generic.di; public class User { }
再看两个泛型的父类：
package spring.beans.generic.di; public class BaseRepository<T> { }
package spring.beans.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); } }
子类：
package spring.beans.generic.di; import org.springframework.stereotype.Repository; @Repository public class UserRepository extends BaseRepository<User>{ }
package spring.beans.generic.di; import org.springframework.stereotype.Service; @Service public class UserService extends BaseService<User> { }
测试：
package spring.beans.generic.di.test; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; import spring.beans.generic.di.UserService; public class Main { public static void main(String[] args) { ApplicationContext ctx=new ClassPathXmlApplicationContext("beans-generic-di.xml"); UserService userService=(UserService) ctx.getBean("userService"); userService.add();//输出的是子类的对象 } }
输出：
add...
spring.beans.generic.di.UserRepository@8646db9
标签：framework one system frame use sch version lap []
原文地址：http://www.cnblogs.com/hyyq/p/6701831.html
