简易的Spring/Boot接口定义,统一处理 (异常/识别码)

最快捷的统一异常处理

方法/步骤

• 结果集实体类

package entity;
public class Result {
    private boolean flag;//是否成功
    private Integer code;// 返回码
    private String message;//返回信息
    private Object data;// 返回数据
    
    //省略Get / Set
    
}

• 分页结果集实体类

package entity;

import java.util.List;

public class PageResult<T> {
    private Long total;
    private List<T> rows;

   //省略Get / Set
}  

• 状态码实体类

package entity;

public class StatusCode {
    public static final int OK=20000;//成功
    public static final int ERROR =20001;//失败
    public static final int LOGINERROR =20002;//用户名或密码错误
    public static final int ACCESSERROR =20003;//权限不足
    public static final int REMOTEERROR =20004;//远程调用失败
    public static final int REPERROR =20005;//重复操作
}

• 接口返回异常处理

@RestControllerAdvice
public class BaseExceptionHandler {

    @ExceptionHandler(value = Exception.class)
    public Result exception(Exception e){
        e.printStackTrace();
        return new Result(false, StatusCode.ERROR,e.getMessage(),"");
    }
}

• 测试Controller

@RestController
@CrossOrigin
@RequestMapping("/label")
public class LabelController {

    @Autowired
    private LabelService labelService;
    
    @RequestMapping(method = RequestMethod.GET)
    public Result findAll(){
        return new Result(true, StatusCode.OK, "查询成功",labelService.findAll());
    }
}

参考文档