iOS判断网络请求超时的方法

本文介绍了iOS判断网络请求超时的方法，代码具体如下：

 + （AFHTTPRequestOperation *）requestOperationWithUrl:（NSString *）urlrequetMethod:（NSString *）method paramData:（NSDictionary *）aParamData constructingBodyWithBlock:（void （^）（id <AFMultipartFormData> formData））blocksuccess:（successBlock）successfailure:（failureBlock）failure {AFHTTPRequestSerializer *requestSerializer = [AFJSONRequestSerializer serializer];NSMutableURLRequest *request;if （block） {method = @"POST";request = [requestSerializer multipartFormRequestWithMethod:method URLString:url parameters:aParamData constructingBodyWithBlock:block error:nil];}else{request = [requestSerializer requestWithMethod:method URLString:url parameters:aParamData error:nil];} AFHTTPRequestOperation *op = [[AFHTTPRequestOperation alloc] initWithRequest:request];AFJSONResponseSerializer *responseSerializer = [AFJSONResponseSerializer serializer];responseSerializer.removesKeysWithNullValues = YES;responseSerializer.acceptableContentTypes = [NSSet setWithObject:@"text/html"];op.responseSerializer = responseSerializer; __weak AFHTTPRequestOperation *weakOp = op;[op setCompletionBlockWithSuccess:^（AFHTTPRequestOperation *operation, id responseObject） {if （[responseObject[@"code"] integerValue] == 0） {if （success） {//success（weakOp, aParamData, responseObject[@"list"]）;success（weakOp, aParamData, responseObject）;}}else{NSLog（@"operation error msg = [%@]", responseObject[@"description"]）;if （failure） {failure（weakOp, aParamData, [self errorWithRet:responseObject]）;}}} failure:^（AFHTTPRequestOperation *operation, NSError *error） {NSLog（@"operation failed = [%@] error = [%@]", operation, error）;if （failure） {failure（weakOp, aParamData, error）;}}];return op;}

打印 error

Error Domain=NSURLErrorDomain Code=-1001 "请求超时。"UserInfo={NSErrorFailingURLStringKey=http://123.56.109.92/refitcar/service.s?sn=, _kCFStreamErrorCodeKey=-2102, NSErrorFailingURLKey=http://123.56.109.92/refitcar/service.s?sn=, NSLocalizedDescription=请求超时。, _kCFStreamErrorDomainKey=4, NSUnderlyingError=0x167da8e0 {Error Domain=kCFErrorDomainCFNetwork Code=-1001 "请求超时。" UserInfo={_kCFStreamErrorCodeKey=-2102, NSErrorFailingURLStringKey=http://123.56.109.92/refitcar/service.s?sn=, NSErrorFailingURLKey=http://123.56.109.92/refitcar/service.s?sn=, NSLocalizedDescription=请求超时。, _kCFStreamErrorDomainKey=4}}}

可见：
po error.localizedDescription 请求超时。
po error.code -1001

po error.userInfo{NSErrorFailingURLKey = "http://123.56.109.92/refitcar/service.s?sn=";NSErrorFailingURLStringKey = "http://123.56.109.92/refitcar/service.s?sn=";NSLocalizedDescription = "U8bf7U6c42U8d85U65f6U3002";NSUnderlyingError = "Error Domain=kCFErrorDomainCFNetwork Code=-1001 "U8bf7U6c42U8d85U65f6U3002" UserInfo={_kCFStreamErrorCodeKey=-2102, NSErrorFailingURLStringKey=http://123.56.109.92/refitcar/service.s?sn=, NSErrorFailingURLKey=http://123.56.109.92/refitcar/service.s?sn=, NSLocalizedDescription=U8bf7U6c42U8d85U65f6U3002, _kCFStreamErrorDomainKey=4}";"_kCFStreamErrorCodeKey" = "-2102";"_kCFStreamErrorDomainKey" = 4;}

所以使用 error.code是否等于 -1001 判断请求超时

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