springmvc返回json的全局异常统一处理demo

package com.yang; import org.slf4j.Logger; import org.slf4j.LoggerFactory; 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; } }