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iOS 发布时间：2022-03-30 发布网站：大佬教程 code.js-code.com

大佬教程收集整理的这篇文章主要介绍了ipad – 什么原因错误NSNetServicesErrorCode =“ – 72000”？，大佬教程大佬觉得挺不错的，现在分享给大家，也给大家做个参考。

我创建了@L_772_0@简单的浏览器,可以使用UIWebview加载本地文件.首先,当我尝试预览html文件时,uiwebview可以加载源文件并进行预览.但在我最小化应用程序(应用程序进入后台),然后再次打开应用程序后,我有这个错误：

Error Dict: {
    NSNetservicesErrorCode = "-72000";
    NSNetservicesErrorDomain = 10;
}

之后,uiwebview无法加载源文件,当我在(void)webView：(UIWebView *)webView didFailLoadWithError：(NSError *)错误中记录错误时,它显示以下消息：

Error Domain=NSURLErrorDomain Code=-1004 "Could not connect to the server." UserInfo=0x53d610 {NSErrorFailingURLStringKey=http://localhost:9898/local/a.html?83C66B33-874C-41A7-BBF5-78D1615512DF,NSErrorFailingURLKey=http://localhost:9898/local/a.html?83C66B33-874C-41A7-BBF5-78D1615512DF,NSLocalizedDescription=Could not connect to the server.,NSUnderlyingError=0x5ccaa0 "Could not connect to the server."}

应用程序没有崩溃,但旋转指示器永远不会停止.

有人能告诉我这个案子的原因是什么？以及如何解决它？

谢谢：)

解决方法

如果您查看NSNetservices标头内部,您将看到以下枚举解释每个错误：

typedef NS_ENUM(NSInteger,NSNetservicesError) {

/* An unkNown error occured during resolution or publication.
*/
    NSNetservicesUnkNownError = -72000L,/* An NSNetservice with the same domain,type and name was already present when the publication request was made.
*/
    NSNetservicesCollisionError = -72001L,/* The NSNetservice was not found when a resolution request was made.
*/
    NSNetservicesnotFoundError  = -72002L,/* A publication or resolution request was sent to an NSNetservice instance which was already published or a search request was made of an NSNetserviceBrowser instance which was already searching.
*/
    NSNetservicesActivityInProgress = -72003L,/* An required argument was not provided when initializing the NSNetservice instance.
*/
    NSNetservicesBadArgumentError = -72004L,/* The operation being performed by the NSNetservice or NSNetserviceBrowser instance was cancelled.
*/
    NSNetservicesCancelledError = -72005L,/* An invalid argument was provided when initializing the NSNetservice instance or starTing a search with an NSNetserviceBrowser instance.
*/
    NSNetservicesInvalidError = -72006L,/* Resolution of an NSNetservice instance Failed because the timeout was reached.
*/
    NSNetservicesTimeoutError = -72007L,};