在spring中编写junit测试单元

import javax.annotation.Resource;

import org.junit.Test;

import org.junit.runner.RunWith;

import org.springframework.test.context.ContextConfiguration;

import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

@RunWith(SpringJUnit4ClassRunner.class)

@ContextConfiguration("classpath:applicationContext.xml")

public class demon1 {

@Resource(name="accountService")
private accountService accountService;

@Test
public void demon1(){
accountService.tranfer(in, out, money);

}

}