spring boot 系统异常统一处理

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分类

python/Java

正文

系统异常捕获

@ControllerAdvice(annotations = {RestController.class})
public class GlobalExceptionHandler {
    private Logger logger = LoggerFactory.getLogger(GlobalExceptionHandler.class);
    /**
     * 系统异常处理，比如：404,500
     * @param req
     * @param e
     * @return
     * @throws Exception
     */
    @ExceptionHandler(value = Exception.class)
    @ResponseBody
    public BaseResp<?> defaultErrorHandler(HttpServletRequest req, Exception e) throws Exception {
 
        logger.error("", e);
        BaseResp baseResp = new BaseResp();
        baseResp.setMessage(e.getMessage());
        if (e instanceof org.springframework.web.servlet.NoHandlerFoundException) {
            baseResp.setCode(ResultStatus.http_status_not_found.getErrorCode());
        } else {
            baseResp.setCode(ResultStatus.http_status_internal_server_error.getErrorCode());
        }
        baseResp.setData("");
        return baseResp;
    }
}

数据返回统一格式

public class BaseResp<T> {
    private int code;//返回码
    private String message;//返回信息描述
    private T data;//返回数据
    private long currentTime;//返回时间戳
 
    public BaseResp(int code,String message,T data){
        this.code = code;
        this.message = message;
        this.data = data;
        this.currentTime = System.currentTimeMillis();
    }
 
    public BaseResp(ResultStatus resultStatus){
        this(resultStatus.getErrorCode(),resultStatus.getErrorMsg(),null);
    }
 
    public BaseResp(ResultStatus resultStatus,T data){
        this(resultStatus.getErrorCode(),resultStatus.getErrorMsg(),data);
    }
 
    public int getCode() {
        return code;
    }
 
    public void setCode(int code) {
        this.code = code;
    }
 
    public String getMessage() {
        return message;
    }
 
    public void setMessage(String message) {
        this.message = message;
    }
 
    public T getData() {
        return data;
    }
 
    public void setData(T data) {
        this.data = data;
    }
 
    public long getCurrentTime() {
        return currentTime;
    }
 
    public void setCurrentTime(long currentTime) {
        this.currentTime = currentTime;
    }
}

错误码

public enum ResultStatus {
 
    // -1为通用失败（根据ApiResult.java中的构造方法注释而来）
    FAIL(-1, "common fail"),
    // 0为成功
    SUCCESS(0, "success"),
 
    error_pic_file(3,"非法图片文件"),
    error_pic_upload(4,"图片上传失败"),
    error_record_not_found(5, "没有找到对应的数据"),
    error_max_page_size(6, "请求记录数超出每次请求最大允许值"),
    error_create_failed(7,"新增失败"),
    error_update_failed(8,"修改失败"),
    error_delete_failed(9,"删除失败"),
    error_search_failed(10,"查询失败"),
    error_count_failed(11,"查询数据总数失败"),
    error_string_to_obj(12,"字符串转java对象失败"),
    error_invalid_argument(13,"参数不合法"),
    error_update_not_allowed(14,"更新失败：%s"),
    error_duplicated_data(15,"数据已存在"),
    error_unknown_database_operation(16,"未知数据库操作失败，请联系管理员解决"),
    error_column_unique(17,"字段s%违反唯一约束性条件"),
    error_file_download(18,"文件下载失败"),
    error_file_upload(19,"文件上传失败"),
 
    //100-511为http 状态码
    // --- 4xx Client Error ---
    http_status_bad_request(400, "Bad Request"),
    http_status_unauthorized(401, "Unauthorized"),
    http_status_payment_required(402, "Payment Required"),
    http_status_forbidden(403, "Forbidden"),
    http_status_not_found(404, "Not Found"),
    http_status_method_not_allowed(405, "Method Not Allowed"),
    http_status_not_acceptable(406, "Not Acceptable"),
    http_status_proxy_authentication_required(407, "Proxy Authentication Required"),
    http_status_request_timeout(408, "Request Timeout"),
    http_status_conflict(409, "Conflict"),
    http_status_gone(410, "Gone"),
    http_status_length_required(411, "Length Required"),
    http_status_precondition_failed(412, "Precondition Failed"),
    http_status_payload_too_large(413, "Payload Too Large"),
    http_status_uri_too_long(414, "URI Too Long"),
    http_status_unsupported_media_type(415, "Unsupported Media Type"),
    http_status_requested_range_not_satisfiable(416, "Requested range not satisfiable"),
    http_status_expectation_failed(417, "Expectation Failed"),
    http_status_im_a_teapot(418, "I'm a teapot"),
    http_status_unprocessable_entity(422, "Unprocessable Entity"),
    http_status_locked(423, "Locked"),
    http_status_failed_dependency(424, "Failed Dependency"),
    http_status_upgrade_required(426, "Upgrade Required"),
    http_status_precondition_required(428, "Precondition Required"),
    http_status_too_many_requests(429, "Too Many Requests"),
    http_status_request_header_fields_too_large(431, "Request Header Fields Too Large"),
 
    // --- 5xx Server Error ---
    http_status_internal_server_error(500, "系统错误"),
    http_status_not_implemented(501, "Not Implemented"),
    http_status_bad_gateway(502, "Bad Gateway"),
    http_status_service_unavailable(503, "Service Unavailable"),
    http_status_gateway_timeout(504, "Gateway Timeout"),
    http_status_http_version_not_supported(505, "HTTP Version not supported"),
    http_status_variant_also_negotiates(506, "Variant Also Negotiates"),
    http_status_insufficient_storage(507, "Insufficient Storage"),
    http_status_loop_detected(508, "Loop Detected"),
    http_status_bandwidth_limit_exceeded(509, "Bandwidth Limit Exceeded"),
    http_status_not_extended(510, "Not Extended"),
    http_status_network_authentication_required(511, "Network Authentication Required"),
 
    // --- 8xx common error ---
    EXCEPTION(800, "exception"),
    INVALID_PARAM(801, "invalid.param"),
    INVALID_PRIVI(802, "invalid.privi"),
 
    //1000以内是系统错误，
    no_login(1000,"没有登录"),
    config_error(1001,"参数配置表错误"),
    user_exist(1002,"用户名已存在"),
    userpwd_not_exist(1003,"用户名不存在或者密码错误"),
    ;
    private static final Logger LOGGER =       LoggerFactory.getLogger(ResultStatus.class);
 
    private int code;
    private String msg;
 
    ResultStatus(int code, String msg){
        this.code = code;
        this.msg = msg;
    }
 
    public static int getCode(String define){
        try {
            return ResultStatus.valueOf(define).code;
        } catch (IllegalArgumentException e) {
            LOGGER.error("undefined error code: {}", define);
            return FAIL.getErrorCode();
        }
    }
 
    public static String getMsg(String define){
        try {
            return ResultStatus.valueOf(define).msg;
        } catch (IllegalArgumentException e) {
            LOGGER.error("undefined error code: {}", define);
            return FAIL.getErrorMsg();
        }
    }
 
    public static String getMsg(int code){
        for(ResultStatus err : ResultStatus.values()){
            if(err.code==code){
                return err.msg;
            }
        }
        return "errorCode not defined ";
    }
 
    public int getErrorCode(){
        return code;
    }
 
    public String getErrorMsg(){
        return msg;
    }
 
}