在單元測試類上方引入註解：RunWith並指定Spring單元測試類。同時引入ContextConfiguration註解，利用locations引入多個配置文件。代碼如下：
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = { "classpath*:config/spring/spring-database.xml", "classpath*:config/spring/spring-sharding.xml" })