6. SpringBoot中Json串處理
阿新 • • 發佈：2021-10-11
SpringBoot中的Json字串處理
1.0 統一響應結果集
SpringBoot 專案主要作用於前後端分離專案，為了方便前後端進行資料互動，我們需要統一後端的返回資料格式，封裝出一個統一框架響應狀態碼和統一響應類
/** * Constants enumerating the HTTP status codes. * All status codes defined in RFC1945 (HTTP/1.0), RFC2616 (HTTP/1.1), and * RFC2518 (WebDAV) are listed. * * @since 4.0 */ public interface HttpStatus { // --- 1xx Informational --- /** * {@code 100 Continue} (HTTP/1.1 - RFC 2616) */ int SC_CONTINUE = 100; /** * {@code 101 Switching Protocols} (HTTP/1.1 - RFC 2616) */ int SC_SWITCHING_PROTOCOLS = 101; /** * {@code 102 Processing} (WebDAV - RFC 2518) */ int SC_PROCESSING = 102; // --- 2xx Success --- /** * {@code 200 OK} (HTTP/1.0 - RFC 1945) */ int SC_OK = 200; /** * {@code 201 Created} (HTTP/1.0 - RFC 1945) */ int SC_CREATED = 201; /** * {@code 202 Accepted} (HTTP/1.0 - RFC 1945) */ int SC_ACCEPTED = 202; /** * {@code 203 Non Authoritative Information} (HTTP/1.1 - RFC 2616) */ int SC_NON_AUTHORITATIVE_INFORMATION = 203; /** * {@code 204 No Content} (HTTP/1.0 - RFC 1945) */ int SC_NO_CONTENT = 204; /** * {@code 205 Reset Content} (HTTP/1.1 - RFC 2616) */ int SC_RESET_CONTENT = 205; /** * {@code 206 Partial Content} (HTTP/1.1 - RFC 2616) */ int SC_PARTIAL_CONTENT = 206; /** * {@code 207 Multi-Status} (WebDAV - RFC 2518) * or * {@code 207 Partial Update OK} (HTTP/1.1 - draft-ietf-http-v11-spec-rev-01?) */ int SC_MULTI_STATUS = 207; // --- 3xx Redirection --- /** * {@code 300 Mutliple Choices} (HTTP/1.1 - RFC 2616) */ int SC_MULTIPLE_CHOICES = 300; /** * {@code 301 Moved Permanently} (HTTP/1.0 - RFC 1945) */ int SC_MOVED_PERMANENTLY = 301; /** * {@code 302 Moved Temporarily} (Sometimes {@code Found}) (HTTP/1.0 - RFC 1945) */ int SC_MOVED_TEMPORARILY = 302; /** * {@code 303 See Other} (HTTP/1.1 - RFC 2616) */ int SC_SEE_OTHER = 303; /** * {@code 304 Not Modified} (HTTP/1.0 - RFC 1945) */ int SC_NOT_MODIFIED = 304; /** * {@code 305 Use Proxy} (HTTP/1.1 - RFC 2616) */ int SC_USE_PROXY = 305; /** * {@code 307 Temporary Redirect} (HTTP/1.1 - RFC 2616) */ int SC_TEMPORARY_REDIRECT = 307; // --- 4xx Client Error --- /** * {@code 400 Bad Request} (HTTP/1.1 - RFC 2616) */ int SC_BAD_REQUEST = 400; /** * {@code 401 Unauthorized} (HTTP/1.0 - RFC 1945) */ int SC_UNAUTHORIZED = 401; /** * {@code 402 Payment Required} (HTTP/1.1 - RFC 2616) */ int SC_PAYMENT_REQUIRED = 402; /** * {@code 403 Forbidden} (HTTP/1.0 - RFC 1945) */ int SC_FORBIDDEN = 403; /** * {@code 404 Not Found} (HTTP/1.0 - RFC 1945) */ int SC_NOT_FOUND = 404; /** * {@code 405 Method Not Allowed} (HTTP/1.1 - RFC 2616) */ int SC_METHOD_NOT_ALLOWED = 405; /** * {@code 406 Not Acceptable} (HTTP/1.1 - RFC 2616) */ int SC_NOT_ACCEPTABLE = 406; /** * {@code 407 Proxy Authentication Required} (HTTP/1.1 - RFC 2616) */ int SC_PROXY_AUTHENTICATION_REQUIRED = 407; /** * {@code 408 Request Timeout} (HTTP/1.1 - RFC 2616) */ int SC_REQUEST_TIMEOUT = 408; /** * {@code 409 Conflict} (HTTP/1.1 - RFC 2616) */ int SC_CONFLICT = 409; /** * {@code 410 Gone} (HTTP/1.1 - RFC 2616) */ int SC_GONE = 410; /** * {@code 411 Length Required} (HTTP/1.1 - RFC 2616) */ int SC_LENGTH_REQUIRED = 411; /** * {@code 412 Precondition Failed} (HTTP/1.1 - RFC 2616) */ int SC_PRECONDITION_FAILED = 412; /** * {@code 413 Request Entity Too Large} (HTTP/1.1 - RFC 2616) */ int SC_REQUEST_TOO_LONG = 413; /** * {@code 414 Request-URI Too Long} (HTTP/1.1 - RFC 2616) */ int SC_REQUEST_URI_TOO_LONG = 414; /** * {@code 415 Unsupported Media Type} (HTTP/1.1 - RFC 2616) */ int SC_UNSUPPORTED_MEDIA_TYPE = 415; /** * {@code 416 Requested Range Not Satisfiable} (HTTP/1.1 - RFC 2616) */ int SC_REQUESTED_RANGE_NOT_SATISFIABLE = 416; /** * {@code 417 Expectation Failed} (HTTP/1.1 - RFC 2616) */ int SC_EXPECTATION_FAILED = 417; /** * Static constant for a 418 error. * {@code 418 Unprocessable Entity} (WebDAV drafts?) * or {@code 418 Reauthentication Required} (HTTP/1.1 drafts?) */ // not used // int SC_UNPROCESSABLE_ENTITY = 418; /** * Static constant for a 419 error. * {@code 419 Insufficient Space on Resource} * (WebDAV - draft-ietf-webdav-protocol-05?) * or {@code 419 Proxy Reauthentication Required} * (HTTP/1.1 drafts?) */ int SC_INSUFFICIENT_SPACE_ON_RESOURCE = 419; /** * Static constant for a 420 error. * {@code 420 Method Failure} * (WebDAV - draft-ietf-webdav-protocol-05?) */ int SC_METHOD_FAILURE = 420; /** * {@code 422 Unprocessable Entity} (WebDAV - RFC 2518) */ int SC_UNPROCESSABLE_ENTITY = 422; /** * {@code 423 Locked} (WebDAV - RFC 2518) */ int SC_LOCKED = 423; /** * {@code 424 Failed Dependency} (WebDAV - RFC 2518) */ int SC_FAILED_DEPENDENCY = 424; // --- 5xx Server Error --- /** * {@code 500 Server Error} (HTTP/1.0 - RFC 1945) */ int SC_INTERNAL_SERVER_ERROR = 500; /** * {@code 501 Not Implemented} (HTTP/1.0 - RFC 1945) */ int SC_NOT_IMPLEMENTED = 501; /** * {@code 502 Bad Gateway} (HTTP/1.0 - RFC 1945) */ int SC_BAD_GATEWAY = 502; /** * {@code 503 Service Unavailable} (HTTP/1.0 - RFC 1945) */ int SC_SERVICE_UNAVAILABLE = 503; /** * {@code 504 Gateway Timeout} (HTTP/1.1 - RFC 2616) */ int SC_GATEWAY_TIMEOUT = 504; /** * {@code 505 HTTP Version Not Supported} (HTTP/1.1 - RFC 2616) */ int SC_HTTP_VERSION_NOT_SUPPORTED = 505; /** * {@code 507 Insufficient Storage} (WebDAV - RFC 2518) */ int SC_INSUFFICIENT_STORAGE = 507; /** * -------------------------------------------------- * 系統自己定義響應碼 */ // int SC_VALID_EXCEPTION = 1000; }
import lombok.Data; import java.util.List; /** * 統一響應類 */ @Data public class HttpResult { private int code = 200; private String msg; private Object data; public static HttpResult error() { return error(HttpStatus.SC_INTERNAL_SERVER_ERROR, "未知異常，請聯絡管理員"); } public static HttpResult error(String msg) { return error(HttpStatus.SC_INTERNAL_SERVER_ERROR, msg); } public static HttpResult error(int code, String msg) { HttpResult r = new HttpResult(); r.setCode(code); r.setMsg(msg); return r; } public static HttpResult error(List<String> errorList){ HttpResult r = new HttpResult(); r.setData(errorList); r.setCode(1000); return r; } public static HttpResult ok(String msg) { HttpResult r = new HttpResult(); r.setMsg(msg); return r; } public static HttpResult ok(Object data) { HttpResult r = new HttpResult(); r.setData(data); return r; } public static HttpResult ok() { return new HttpResult(); } }
2.0 處理日期時間格式
@JsonFormat主要是後臺到前臺的時間格式的轉換，序列化
@DateTimeFormat主要是前後到後臺的時間格式的轉換，反序列化
2.1 註解式
@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
@DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")
2.2 全域性配置式（實體類必須實現可序列化）
spring: mvc: date-format: yyyy-MM-dd HH:mm:ss jackson: date-format: yyyy-MM-dd HH:mm:ss