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API / @angular/common/http

HttpErrorResponse

A response that represents an error or failure, either from a non-successful HTTP status, an error while executing the request, or some other failure which occurred during the parsing of the response.

一个用于表示错误或失败的响应对象，或者来自执行请求时发生的错误给出的失败的 HTTP 状态码，或者来自在解析响应对象期间发生的其它错误。

class HttpErrorResponse extends HttpResponseBase implements Error { constructor(init: {...}) get name: 'HttpErrorResponse' get message: string get error: any | null get ok: false // 继承自 common/http/HttpResponseBase constructor(init: {...}, defaultStatus: number = 200, defaultStatusText: string = 'OK') get headers: HttpHeaders get status: number get statusText: string get url: string | null get ok: boolean get type: HttpEventType.Response | HttpEventType.ResponseHeader }

说明

Any error returned on the Observable response stream will be wrapped in an HttpErrorResponse to provide additional context about the state of the HTTP layer when the error occurred. The error property will contain either a wrapped Error object or the error response returned from the server.

任何从 Observable 响应流中返回的错误都会被包装成 HttpErrorResponse 对象，以便在发生错误时，提供关于 HTTP 层状态的额外上下文信息。 该错误或者包含一个包装好的错误对象，或者包含一个从服务端返回的错误响应体。

构造函数

constructor(init: { error?: any; headers?: HttpHeaders; status?: number; statusText?: string; url?: string; })

参数

init

Type: { error?: any; headers?: HttpHeaders; status?: number; statusText?: string; url?: string; }.

属性

属性名类型说明
name只读
message只读
error只读
ok只读

Errors are never okay, even when the status code is in the 2xx success range.

只要是错误，其 ok 就永远为 false，就算其 HTTP 状态码是 2xx 也一样。