java开发注意事项 (一)

• • • 1.拆分合理
    • 2.与前端交互
    • 3.返回值设置
    • 4.项目推荐

@Data
@ApiModel(value = "全局统一返回结果")
public class Result {

    @ApiModelProperty(value = "返回码")
    private Integer code;

    @ApiModelProperty(value = "返回消息")
    private String message;

    @ApiModelProperty(value = "返回数据")
    private T data;

    public Result(){}

    public static  Result build(T body, Integer code, String message) {
        Result result = new Result();
        if (body != null) {
            result.setData(body);
        }
        result.setCode(code);
        result.setMessage(message);
        return result;
    }

    public static Result ok(){
        return Result.ok(null);
    }

    
    public static Result ok(T data){
        return build(data,20000,"成功");
    }

    public static Result fail(){
        return Result.fail(null);
    }

    
    public static Result fail(T data){
        return build(data, 20001,"失败");
    }

    public Result message(String msg){
        this.setMessage(msg);
        return this;
    }

    public Result code(Integer code){
        this.setCode(code);
        return this;
    }
}

1. 推荐使用lombock
2. 不要AService调用BMapper
3. 少写工具类, 代码冗余
4. 使用新技术