Spring中@Value注解的使用方法详解

server:
 port: 8129

    @Value("${server.port}")
    private String port;

    @Test
    public  void  getPort(){
        System.out.println("############"+port+"############");
    }

    // 测试自定义的配置文件
    @Value("${user.password}")
    private String password;

    @Test
    public  void  getPassword(){

        System.out.println(password);
    }
    
    //测试配置多个值
    @Value("${users}")
    private String[] toolArray;

    @Value("${users}")
    private List<String> toolList;
    @Test
    public  void  getTools(){
        System.out.println(toolArray);
        // 反射得到其类型
        String typeName = toolList.getClass().getTypeName();
        System.out.println(typeName);
        System.out.println(toolList);
    }

   @Value("hello")
    private String value;
    @Test
    public void getValue(){
        System.out.println(value);
    }

@Component("myBeans")
public class other {
    @Value("hello")
    private String name;

    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
}

  // 注入其他Bean的属性
    @Value("#{myBeans.name}")
    private String fromAnotherBean;

    @Test
    public  void  getFromAnotherBean(){

        System.out.println(fromAnotherBean);
    }