静态变量与类如果被注解使用

静态变量

@Component
@PropertySource("classpath:mail.properties")
public class TestUtil {

private static String star;

@Autowired
public TestUtil(@Value("${mail.smtp.username}")String star) {
TestUtil.star = star;
}

静态类

@Component
public class StaticFactory {

    @Autowired
    public  void setDataSource(DataSource dataSource) {
        StaticFactory.dataSource = dataSource;
    }

 private static   DataSource dataSource;
 }