①统一返回结果
package com.ioc.exception;import lombok.Data;import java.io.Serializable;/*** 后端统一返回结果* @param <T>*/
@Data
//使用泛型对Result返回类进行了封装
public class Result<T> implements Serializable {private Integer code; //编码：1成功，0和其它数字为失败private String msg; //错误信息private T data; //数据public static <T> Result<T> success() {Result<T> result = new Result<T>();result.code = 1;return result;}public static <T> Result<T> success(T object) {Result<T> result = new Result<T>();result.data = object;result.code = 1;return result;}public static <T> Result<T> error(Integer code,String msg) {Result result = new Result();result.msg = msg;result.code = code;return result;}}
②枚举类
package com.ioc.exception;/*** 枚举类*/
public enum ExceptionMsg {;private Integer code;private String msg;public Integer getCode() {return code;}public String getMsg() {return msg;}ExceptionMsg(Integer code, String msg) {this.code = code;this.msg = msg;}
}
③自定义异常类
package com.ioc.exception;/*** 业务异常*/
public class BaseException extends RuntimeException {private Integer code =500;private String msg = "";public BaseException(ExceptionMsg exceptionMsg) {this.code=exceptionMsg.getCode();this.msg = exceptionMsg.getMsg();}public BaseException(Integer code , String msg){super();this.msg=msg;this.code=code;}public BaseException(String msg) {super();this.msg=msg;}public Integer getCode() {return code;}public String getMsg() {return msg;}
}
④全局异常处理类
package com.ioc.exception;import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;/*** 全局异常处理器，处理项目中抛出的业务异常*/
@RestControllerAdvice
@Slf4j
public class GlobalExceptionHandler {/*** 捕获业务异常* @param ex* @return*/@ExceptionHandlerpublic Result exceptionHandler(BaseException ex){log.error("异常信息：{}", ex.getMessage());return Result.error(ex.getCode(),ex.getMsg());}
}
