注解、context和util的使用
注解、context和util的使用
@Autowired
@PostConstruct
@PreDestroy
@Test
以上这都是注解
cn.csdn.service. Address
package cn.csdn.service;
import java.util.List;
public class Address {
??? private List<String> list;
??? public List<String> getList() {
?????? return list;
??? }
??? public void setList(List<String> list) {
?????? this.list = list;
??? }
}
cn.csdn.service. Emp
package cn.csdn.service;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import org.springframework.beans.factory.annotation.Autowired;
public class Emp {
??? private Address address;
??? public Address getAddress() {
?????? return address;
??? }
??? @Autowired
??? public void setAddress(Address address) {
?????? this.address = address;
??? }
??? @PostConstruct
??? public void init(){
?????? System.out.println("初始化bean的操作...");
??? }
??? public Emp() {
?????? System.out.println("初始化...");
??? }
??? @PreDestroy
??? public void distory(){
?????? System.out.println("销毁的操作...");
??? }
}
配置文件
<?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"
??? ??? xmlns:util="http://www.springframework.org/schema/util"
??? xsi:schemaLocation="http://www.springframework.org/schema/beans
??? http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
??? http://www.springframework.org/schema/context
??? http://www.springframework.org/schema/context/spring-context-2.5.xsd
??? http://www.springframework.org/schema/util
??? http://www.springframework.org/schema/util/spring-util-2.5.xsd">
?
<bean id="address" class="cn.csdn.service.Address">
<property name="list">
??? <util:list>
?????? <value>kouxiaolin</value>
??? </util:list>
</property>
</bean>
<bean id="emp" class="cn.csdn.service.Emp"></bean>
<context:annotation-config/>
<!--
??? //生命周期的bean
??? <bean id="commonAnnotationBeanPostProcessor"
??? style="text-align: left; margin: 0cm 0cm 0pt;">??? //自动装配
bean <bean id="autowiredAnnotationBeanPostProcessor"
??? style="text-align: left; margin: 0cm 0cm 0pt;">??? </bean>
??? -->
</beans>
Context和util
xmlns:context="http://www.springframework.org/schema/context"
xmlns:util="http://www.springframework.org/schema/util"
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-2.5.xsd
http://www.springframework.org/schema/util
http://www.springframework.org/schema/util/spring-util-2.5.xsd">
它们既可以手动配置也可以自动生成
自动生成：在配置文件视图编辑器，右击beans，再点击Editor namespace，出现对话框，点击Add，选择Specify new Namespace，点击Browse选择select xml Catalog entry，选择即可。
Prefix是前缀
Namespace name：命名空间
cn.csdn.service. App
package cn.csdn.service;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class App {
??? @Test
??? public void test(){
?????? ApplicationContext ac = new ClassPathXmlApplicationContext("app*.xml");
?????? Emp emp = (Emp) ac.getBean("emp");
?????? System.out.println(emp);
??? ??? ((AbstractApplicationContext)ac).close();
??? }
}