首先,按照Spring系列一中的环境搭建方式搭建好我们的开发环境,如下图所示:
从图中我们可以看到需要创建的包以及类和接口:
cs.csdn.Junit为JUnit测试包
cs.csdn.Service为服务类包
GreetingService接口源码:
package cn.csdn.service;
public interface GreetingService {
void sayGreeting();
}
GreetingServiceImpl接口实现类源码:
package cn.csdn.service;
public class GreetingServiceImpl implements GreetingService{
private String say;
@Override
public void sayGreeting() {
System.out.println("我说的是:"+say);
}
/**通过set方法进行赋值*/
public void setSay(String say) {
this.say = say;
}
}
GreetingTest测试类源码:
package cn.csdn.juint;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import cn.csdn.service.GreetingServiceImpl;
public class GreetingTest {
@Test
public void test(){
/**解析applicationContext.xml文件*/
ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
/**调用getBean方法获取bean对象 需要强制造型*/
GreetingServiceImpl gsi = (GreetingServiceImpl) ac.getBean("greetingServiceImpl");
/**调用对象相应的方法*/
gsi.sayGreeting();
}
}
ApplicationContext.xml文件的配置:
1 <?xml version="1.0" encoding="UTF-8"?>
2
3 <beans xmlns="http://www.springframework.org/schema/beans"
4
5 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
6
7 xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">
8
9
10
11
12
13 <bean id="greetingServiceImpl" class="cn.csdn.service.GreetingServiceImpl">
14
15 <property name="say" value="Hello"></property>
16
17 </bean>
18
19 </beans>
2
3 <beans xmlns="http://www.springframework.org/schema/beans"
4
5 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
6
7 xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">
8
9
10
11
12
13 <bean id="greetingServiceImpl" class="cn.csdn.service.GreetingServiceImpl">
14
15 <property name="say" value="Hello"></property>
16
17 </bean>
18
19 </beans>
运行JUnit测试类结果:
我说的是:Hello