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- (void)pause{
[self.uploadTask cancel];
}
- (void)startUploadWithPath:(NSString *)path data:(NSData *)data fileName:(NSString *)fileName{
//1.創(chuàng)建會(huì)話(huà)對(duì)象,設(shè)置代理
NSURLSession *session = [NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration] delegate:self delegateQueue:[NSOperationQueue mainQueue]];
//2.創(chuàng)建請(qǐng)求對(duì)象
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:path.jq_URL];
//2.1 修改請(qǐng)求方法
request.HTTPMethod = @"POST";
//2.2 設(shè)置請(qǐng)求頭
NSString *header = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",kBoundary];
[request setValue:header forHTTPHeaderField:@"Content-Type"];
//3.創(chuàng)建上傳task
/*
第一個(gè)參數(shù):請(qǐng)求對(duì)象
第二個(gè)參數(shù):要上傳文件的參數(shù)(二進(jìn)制數(shù)據(jù)
第三個(gè)參數(shù):completionHandler
data:服務(wù)器返回的結(jié)果(響應(yīng)體信息)
response:響應(yīng)頭
*/
self.uploadTask = [session uploadTaskWithRequest:request fromData:[self getBodyDataWithImageData:data fileName:fileName] completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
//更新數(shù)據(jù)庫(kù)
RLMRealm *realm = [RLMRealm defaultRealm];
[[RLMRealm defaultRealm] beginWriteTransaction];
[UPModel createOrUpdateInRealm:realm withValue:@{@"fileName": self.name, @"finish": @(YES), @"finishTime": [Tool getNowTime], }];
[[RLMRealm defaultRealm] commitWriteTransaction];
//結(jié)束定時(shí)器
[self.timer invalidate];
//5.解析結(jié)果
NSLog(@"%@",[[NSString alloc]initWithData:data encoding:NSUTF8StringEncoding]);
//移除通知
[[NSNotificationCenter defaultCenter] removeObserver:self name:@"pauseUpload" object:nil];
}];
//4.執(zhí)行任務(wù)
[self.uploadTask resume];
}
#define kBoundary @"----WebKitFormBoundary0IQAt0HA7oxwIx3f"
#define KNewLine [@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]
-(NSData *)getBodyDataWithImageData:(NSData *)imageData fileName:(NSString *)fileName{
//5.拼接數(shù)據(jù)
NSMutableData *fileData = [NSMutableData data];
//5.1 拼接文件參數(shù)
/*
--分隔符
Content-Disposition: form-data; name="file"; filename="Snip20151228_572.png"
Content-Type: image/png
空行
文件二進(jìn)制數(shù)據(jù)
*/
[fileData appendData:[[NSString stringWithFormat:@"--%@",kBoundary] dataUsingEncoding:NSUTF8StringEncoding]];
[fileData appendData:KNewLine];
// name="file":參數(shù),是固定的
// filename:文件上傳到服務(wù)器以什么名字來(lái)保存,隨便
[fileData appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"file\"; filename=\"%@\"", fileName] dataUsingEncoding:NSUTF8StringEncoding]];
[fileData appendData:KNewLine];
//Content-Type:要上傳的文件的類(lèi)型 (MIMEType)
[fileData appendData: [@"Content-Type: image/png" dataUsingEncoding:NSUTF8StringEncoding]];
[fileData appendData:KNewLine];
[fileData appendData:KNewLine];
[fileData appendData:imageData];
[fileData appendData:KNewLine];
//5.2 拼接非文件參數(shù)
/*
--分隔符
Content-Disposition: form-data; name="username"
空行
非文件參數(shù)的二進(jìn)制數(shù)據(jù)
*/
[fileData appendData:[[NSString stringWithFormat:@"--%@",kBoundary] dataUsingEncoding:NSUTF8StringEncoding]];
[fileData appendData:KNewLine];
//username:同file 是服務(wù)器規(guī)定
[fileData appendData:[@"Content-Disposition: form-data; name=\"username\"" dataUsingEncoding:NSUTF8StringEncoding]];
[fileData appendData:KNewLine];
[fileData appendData:KNewLine];
[fileData appendData:[@"dashen9" dataUsingEncoding:NSUTF8StringEncoding]];
[fileData appendData:KNewLine];
//5.3 拼接結(jié)尾標(biāo)識(shí)
/*
--分隔符--
*/
[fileData appendData:[[NSString stringWithFormat:@"--%@--",kBoundary] dataUsingEncoding:NSUTF8StringEncoding]];
return fileData;
}
