first commit

src/main/java/com/greenorange/promotion/common/BaseResponse.java

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+package com.greenorange.promotion.common;
+
+import lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * 通用返回类
+ */
+
+@Data
+@SuppressWarnings("all")
+public class BaseResponse<T> implements Serializable {
+
+    private int code;
+
+    private T data;
+
+    private String message;
+
+    public BaseResponse(int code, T data ,String message) {
+        this.code = code;
+        this.data = data;
+        this.message = message;
+    }
+
+    public BaseResponse(int code , T data) {
+        this(code, data, "");
+    }
+
+    public BaseResponse(ErrorCode errorCode) {
+        this(errorCode.getCode(), null, errorCode.getMessage());
+    }
+}

src/main/java/com/greenorange/promotion/common/ErrorCode.java

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+package com.greenorange.promotion.common;
+
+import lombok.Getter;
+
+@Getter
+public enum ErrorCode {
+
+    SUCCESS(1,"ok"),
+    PARAMS_ERROR(40000,"请求参数错误"),
+    NOT_LOGIN_ERROR(40100,"未登录"),
+    NO_AUTH_ERROR(40101, "无权限"),
+    NOT_FOUND_ERROR(40400,"请求数据不存在"),
+    FORBIDDEN_ERROR(40300,"禁止访问"),
+    SYSTEM_ERROR(50000,"系统内部异常"),
+    OPERATION_ERROR(50001,"操作失败"),
+    DATABASE_ERROR(50002, "数据库内部异常"),
+    LOGIN_ERROR(40110,"登陆状态变更");
+
+    /**
+     * 状态码
+     */
+    private final int code;
+
+    private final String message;
+
+    ErrorCode(int code,String message) {
+        this.code = code;
+        this.message = message;
+    }
+}

src/main/java/com/greenorange/promotion/common/PageRequest.java

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+package com.greenorange.promotion.common;
+
+import com.greenorange.promotion.constant.CommonConstant;
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+
+/**
+ * 分页请求
+ */
+@Data
+public class PageRequest {
+
+    /**
+     * 当前页号
+     */
+    @Schema(description = "当前页码", example = "1")
+    private long current = 1;
+
+    /**
+     * 页面大小
+     */
+    @Schema(description = "每页展示的记录条数", example = "10")
+    private long pageSize = 10;
+
+    /**
+     * 排序字段
+     */
+    @Schema(description = "排序字段", example = "id")
+    private String sortField;
+
+    /**
+     * 排序顺序（默认升序）
+     */
+    @Schema(description = "排序顺序((升:ascend;降:descend", example = "ascend")
+    private String sortOrder = CommonConstant.SORT_ORDER_ASC;
+}

src/main/java/com/greenorange/promotion/common/ResultUtils.java

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+package com.greenorange.promotion.common;
+
+@SuppressWarnings("all")
+public class ResultUtils {
+
+    /**
+     * 成功
+     *
+     * @param data 数据
+     * @param <T> 泛型
+     * @return 成功信息
+     */
+    public static <T> BaseResponse<T> success(T data) {
+        return new BaseResponse<>(1, data , "ok");
+    }
+
+    /**
+     * 成功
+     *
+     * @param data    数据
+     * @param message 成功消息
+     * @return 成功
+     */
+    public static <T> BaseResponse<T> success(T data, String message) {
+        return new BaseResponse<>(1, data, message);
+    }
+
+    /**
+     * 失败
+     *
+     * @param errorCode 自定义错误码
+     * @return 失败信息
+     */
+    public static <T> BaseResponse<T> error(ErrorCode errorCode) {
+        return new BaseResponse<>(errorCode);
+    }
+
+    /**
+     * 失败
+     *
+     * @param code    错误码
+     * @param message 消息
+     * @return 失败信息
+     */
+    public static <T> BaseResponse<T> error(int code, String message) {
+        return new BaseResponse(code, null, message);
+    }
+
+    /**
+     * 失败
+     *
+     * @param errorCode 自定义错误码
+     * @return 失败信息
+     */
+    public static <T> BaseResponse<T> error(ErrorCode errorCode, String message) {
+        return new BaseResponse(errorCode.getCode(), null, message);
+    }
+}