java接口报错500自定义异常信息返回

ゝ一纸荒年。 2022-09-03 04:26 406阅读 0赞

import com.sun.java.browser.plugin2.liveconnect.v1.Result;
    import com.techno.util.ResponseData;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.web.bind.annotation.ControllerAdvice;
    import org.springframework.web.bind.annotation.ExceptionHandler;
    import org.springframework.web.bind.annotation.ResponseBody;
    
    /**
     * 捕获异常的类，返回信息给浏览器，可以自定义返回的code,msg等信息
     */
    @ControllerAdvice
    public class ExceptionHandle {
        private final static Logger logger = LoggerFactory.getLogger(ExceptionHandle.class);
        @ExceptionHandler(value = Exception.class)
        @ResponseBody
        public ResponseData handle(Exception e) {
            ResponseData res = ResponseData.serverInternalError();
            if (e instanceof OwnException) {   //判断异常是否是我们定义的异常
                OwnException ownException = (OwnException) e;
                return res.putDataValue(ownException.getCode()+"", ownException.getMessage());
            }else {
                logger.error("【系统异常】{}", e);
                return res.putDataValue("-1", "系统异常");
            }
        }
    }
    
    class OwnException extends RuntimeException{    //注意：spring中，只有RuntimeException才会进行事务回滚，Exception不会进行事务回滚
    
        private Integer code;
    
        public OwnException(ResultEnum resultEnum) {
            super(resultEnum.getMsg());
            this.code = resultEnum.getCode();
        }
    
        public Integer getCode() {
            return code;
        }
    
        public void setCode(Integer code) {
            this.code = code;
        }
    }
    
    
    enum ResultEnum {
        UNKONW_ERROR(-1, "未知错误"),
        SERVER_ERROR(500,"系统异常"),
        SUCCESS(0, "成功"),
        ;
    
        private Integer code;
    
        private String msg;
    
        ResultEnum(Integer code, String msg) {
            this.code = code;
            this.msg = msg;
        }
    
        public Integer getCode() {
            return code;
        }
    
        public String getMsg() {
            return msg;
        }
    }

@ControllerAdvice会拦截系统controller或service抛出的异常