package com.how2java.pojo; import org.springframework.beans.factory.annotation.Autowired; public class Product { private int id; private String name; @Autowired
// 等价于 @Resource(name="c") private Category category; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public Category getCategory() { return category; } // @Autowired public void setCategory(Category category) { this.category = category; } }
--------------------Category类-----------------
package com.how2java.pojo;
public class Category {
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
private int id;
private String name;
}
-------------------------- <?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:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd"> <context:annotation-config/> //使用注解 <bean name="c" class="com.how2java.pojo.Category"> <property name="name" value="category 1" /> </bean> <bean name="p" class="com.how2java.pojo.Product"> <property name="name" value="product1" /> <!-- <property name="category" ref="c" /> --> //已经注解 @Resource </bean> </beans>
-----------------------
package com.how2java.test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.how2java.pojo.Product;
public class TestSpring {
public static void main(String[] args) {
ApplicationContext context = new ClassPathXmlApplicationContext(new String[] { "applicationContext.xml" });
Product p = (Product) context.getBean("p");
System.out.println(p.getName());
System.out.println(p.getCategory().getName());
}
}