01项目了解

标签：code String 项目 errorMessage ResponseResult 了解 01 public size

1.前后端交互

 

 

 2.dto:数据传输对象，不往数据库里存储，用来接收页面过来的数据

    公共分页请求对象======

import lombok.Setter;

/**
 * 公共分页请求对象
 */
@Setter
public class PageRequestDto {
    /**
     * 每页条数
     */
    protected Integer size;
    /**
     * 当前页
     */
    protected Long page;

    public Integer getSize() {
        if (this.size == null || this.size <= 0 || this.size > 100) {
            setSize(10);
        }
        return size;
    }

    public Long getPage() {
        if (this.page == null || this.page <= 0) {
            setPage(1L);
        }
        return page;
    }
}

　　

通用分页结果=====

 1 /**
 2  * 通用分页结果
 3  *
 4  * @param <T>
 5  */
 6 @Data
 7 @NoArgsConstructor
 8 @EqualsAndHashCode(callSuper = true)
 9 public class PageResponseResult<T> extends ResponseResult<T> implements Serializable {
10     /**
11      * 当前页
12      */
13     private Long currentPage;
14     /**
15      * 每页条数
16      */
17     private Integer size;
18     /**
19      * 总数
20      */
21     private Long total;
22 
23     public PageResponseResult(Long currentPage, Integer size, Long total) {
24         this.currentPage = currentPage;
25         this.size = size;
26         this.total = total;
27     }
28 
29     public PageResponseResult(Long currentPage, Integer size, Long total, T data) {
30         this.currentPage = currentPage;
31         this.size = size;
32         this.total = total;
33         this.setData(data);
34     }
35 }

           通用的结果返回类==========

 1 import com.heima.common.enums.AppHttpCodeEnum;
 2 import lombok.Data;
 3 
 4 import java.io.Serializable;
 5 
 6 
 7 /**
 8  * 通用的结果返回类
 9  * @param <T>
10  */
11 @Data
12 public class ResponseResult<T> implements Serializable {
13     /**
14      * 返回码
15      */
16     private Integer code;
17     /**
18      * 错误提示
19      */
20     private String errorMessage;
21     /**
22      * 返回数据
23      */
24     private T data;
25 
26     public ResponseResult() {
27         this.code = AppHttpCodeEnum.SUCCESS.getCode();
28     }
29 
30     public ResponseResult(Integer code, T data) {
31         this.code = code;
32         this.data = data;
33     }
34 
35     public ResponseResult(Integer code, String msg) {
36         this.code = code;
37         this.errorMessage = msg;
38     }
39 
40     public static ResponseResult okResult() {
41         return okResult(null);
42     }
43 
44     public static <T> ResponseResult okResult(T data) {
45         return new ResponseResult(AppHttpCodeEnum.SUCCESS.getCode(), data);
46     }
47 
48     public static ResponseResult errorResult(int code, String msg) {
49         return new ResponseResult(code, msg);
50     }
51 
52     public static ResponseResult errorResult(AppHttpCodeEnum enums) {
53         return new ResponseResult(enums.getCode(), enums.getErrorMessage());
54     }
55 
56     public static ResponseResult errorResult(AppHttpCodeEnum enums, String errorMessage) {
57         return new ResponseResult(enums.getCode(), errorMessage);
58     }
59 
60 }



测试：

public enum GenderEnum {

    NAN(1,"男"),
    NV(0,"女"),
    NO(-1,"未知");


    
    int code;
    String value;

    GenderEnum(int code, String value) {
        this.code = code;
        this.value = value;
    }
}

    ===相应状态码枚举类

 1 public enum AppHttpCodeEnum {
 2 
 3     // 成功段0
 4     SUCCESS(0,"操作成功"),
 5     // 登录段1~50
 6     NEED_LOGIN(1,"需要登录后操作"),
 7     LOGIN_PASSWORD_ERROR(2,"密码错误"),
 8     // TOKEN50~100
 9     TOKEN_INVALID(50,"无效的TOKEN"),
10     TOKEN_EXPIRE(51,"TOKEN已过期"),
11     TOKEN_REQUIRE(52,"TOKEN是必须的"),
12     // SIGN验签 100~120
13     SIGN_INVALID(100,"无效的SIGN"),
14     SIG_TIMEOUT(101,"SIGN已过期"),
15     // 参数错误 500~1000
16     PARAM_REQUIRE(500,"缺少参数"),
17     PARAM_INVALID(501,"无效参数"),
18     PARAM_IMAGE_FORMAT_ERROR(502,"图片格式有误"),
19     SERVER_ERROR(503,"服务器内部错误"),
20     // 数据错误 1000~2000
21     DATA_EXIST(1000,"数据已经存在"),
22     AP_USER_DATA_NOT_EXIST(1001,"ApUser数据不存在"),
23     DATA_NOT_EXIST(1002,"数据不存在"),
24     // 数据错误 3000~3500
25     NO_OPERATOR_AUTH(3000,"无权限操作"),
26     NEED_ADMIND(3001,"需要管理员权限");
27 
28     int code;
29     String errorMessage;
30 
31     AppHttpCodeEnum(int code, String errorMessage){
32         this.code = code;
33         this.errorMessage = errorMessage;
34     }
35 
36     public int getCode() {
37         return code;
38     }
39 
40     public String getErrorMessage() {
41         return errorMessage;
42     }
43 }

 

    

 

标签：code,String,项目,errorMessage,ResponseResult,了解,01,public,size
From： https://www.cnblogs.com/xwz0705/p/16794987.html