java泛型响应封装

@Data
public class ResponseBean implements Serializable {
    private static final long serialVersionUID = 3532176852796649340L;

    private T t;
    private String message;
    private Integer code;

    public static  ResponseBean build(Integer code,String message,T t){
        ResponseBean responseBean =new ResponseBean();
        responseBean.setCode(code);
        responseBean.setMessage(message);
        responseBean.setT(t);
        return responseBean;
    }

    
    public static  ResponseBean success(){
        ResponseBean responseBean=build(SysConstants.SUCCESS,SysConstants.SUCCESS_MSG,null);
        return responseBean;
    }

    
    public static  ResponseBean success(T t){
        ResponseBean responseBean=build(SysConstants.SUCCESS,SysConstants.SUCCESS_MSG,t);
        return responseBean;
    }

    
    public static  ResponseBean success(String message,T t){
        ResponseBean responseBean=build(SysConstants.SUCCESS,message,t);
        return responseBean;
    }

    
    public static  ResponseBean error(){
        ResponseBean responseBean=build(SysConstants.ERROR,SysConstants.ERROR_MSG,null);
        return responseBean;
    }

    
    public static  ResponseBean error(String message){
        ResponseBean responseBean=build(SysConstants.ERROR,message,null);
        return responseBean;
    }

    
    public static  ResponseBean error(Integer code,String message){
        ResponseBean responseBean=build(code,message,null);
        return responseBean;
    }
}

**
 * @描述
 * @创建人 admin
 * @创建时间 2022/6/1 14:44
 **/
public class SysConstants {
    
    public static final Integer SUCCESS = 200;

    
    public static final Integer REFUSE = 202;

    
    public static final Integer ERROR = 500;

    
    public static final String SUCCESS_MSG = "请求成功";

    
    public static final String ERROR_MSG = "请求失败";
}

​使用：

private static ResponseBean getUser() {
    List list= new ArrayList();
    User user =new User();
    user.setAge(1);
    user.setId("1");
    user.setName("sahs");
    User user2 =new User();
    user2.setAge(2);
    user2.setId("2");
    user2.setName("s233");
    list.add(user);
    list.add(user2);

    Map map =new HashMap();
    map.put("1","sss");
    return ResponseBean.success(list);
}