创建项目
项目名称:spring092601
2.引入相关jar包--日志记录
commons-logging.jar--单元测试
junit-4.4.jar--日志
log4j.jar
--SpringIoC(依赖注入)的基础实现
spring-beans-3.2.0.RELEASE.jar
--Spring提供在基础IoC功能上的扩展服务,此外还提供许多企业级服务的支持
spring-context-3.2.0.RELEASE.jar
--Spring3.0的核心工具包
spring-core-3.2.0.RELEASE.jar
--Spring表达式语言
spring-expression-3.2.0.RELEASE.jar
3.添加配置文件
在项目中创建conf源文夹,并在conf目录下创建applicationContext.xml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:p="http://www.springframework.org/schema/p"
xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">
</beans>
4.创建业务bean
在src目录下创建HelloSpring业务Bean
包名:cn.jbit.spring092601.domain
package cn.jbit.spring092601.domain;
import java.io.Serializable;
/**
* spring入门
* @author Administrator
*
*/
public class HelloSpring implements Serializable {
private String name;//名称
public void setName(String name) {
this.name = name;
}
public String getName() {
return name;
}
}
5.在配置文件中配置HelloSpring业务bean,在applicationContext.xml文件中的beans节点下配置, 配置完成后的applicationContext.xml文件如下:
<?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:p="http://www.springframework.org/schema/p"
xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">
<!-- spring入门
控制反转IOC
-->
<bean id="helloSpring" class="cn.jbit.spring092601.domain.HelloSpring">
<!--
给属性注入一个值:hello
-->
<property name="name">
<value>hello</value>
</property>
</bean>
</beans>
6.测试spring是否工作
在项目中创建test源文件夹,在test目录下创建测试类
包名:cn.jbit.spring092601.domain
package cn.jbit.spring092601.domain;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class HelloSpringTest {
/**
* 依赖注入方式实现
*/
@Test
public void testHellpSpring3(){
/*
* 对象由spring创建
*/
ApplicationContext context = new ClassPathXmlApplicationContext("classpath:applicationContext.xml");
HelloSpring helloSpring = (HelloSpring) context.getBean("helloSpring");
System.out.println(helloSpring.getName());
}
/**
* 控制反转方式实现
* IOC方式
*/
@Test
public void testHellpSpring2(){
/*
* 对象由spring创建
*/
ApplicationContext context = new ClassPathXmlApplicationContext("classpath:applicationContext.xml");
HelloSpring helloSpring = (HelloSpring) context.getBean("helloSpring");
helloSpring.setName("张三");
System.out.println(helloSpring.getName());
}
/**
* 传统方式实现
*/
@Test
public void testHellpSpring1(){
HelloSpring helloSpring = new HelloSpring();
helloSpring.setName("zhangsan");
System.out.println(helloSpring.getName());
}
}
转载于:https://blog.51cto.com/suyanzhu/1558436