NSURLSession
Posted 谢小锋
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-(void)get{
NSURLSession * session=[NSURLSession sharedSession];
NSURLSessionTask * task=[session dataTaskWithRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.xiufa.com/BJUI/plugins/kindeditor_4.1.10/attached/image/20160427/20160427020327_69298.png"]] completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
_imageview.image= [ UIImage imageWithData:data];
NSLog(@"%@",[NSThread currentThread]);
}];
[task resume];
}
-(void)get2{
NSURLSession * session=[NSURLSession sharedSession];
NSURLSessionTask * task=[session dataTaskWithURL:[NSURL URLWithString:@"http://www.xiufa.com/BJUI/plugins/kindeditor_4.1.10/attached/image/20160427/20160427020327_69298.png"] completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
_imageview.image= [ UIImage imageWithData:data];
NSLog(@"%@",[NSThread currentThread]);
}];
[task resume];
}//post 请求
-(void)post{
NSURLSession * session=[NSURLSession sharedSession];
NSMutableURLRequest * request=[NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"http://www.xiufa.com/BJUI/plugins/kindeditor_4.1.10/attached/image/20160427/20160427020327_69298.png"]];
[email protected]"GET";
request.HTTPBody=[@"" dataUsingEncoding:NSUTF8StringEncoding];
NSURLSessionTask * task=[session dataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
NSOperationQueue * que=[NSOperationQueue mainQueue];
[que addOperationWithBlock:^{
_imageview.image= [ UIImage imageWithData:data];
NSLog(@"%@",[NSThread currentThread]);
}];
}];
[task resume];
}
-(void)download{
NSURLSession * session=[NSURLSession sharedSession];
NSURLSessionDownloadTask * down= [session downloadTaskWithURL:[NSURL URLWithString:@"http://www.xiufa.com/BJUI/plugins/kindeditor_4.1.10/attached/image/20160427/20160427020327_69298.png"] completionHandler:^(NSURL * _Nullable location, NSURLResponse * _Nullable response, NSError * _Nullable error) {
NSString * file=[[NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES)lastObject] stringByAppendingPathComponent:response.suggestedFilename];
NSFileManager * mag=[NSFileManager defaultManager];
[mag moveItemAtURL:location toURL:[NSURL fileURLWithPath:file] error:nil];
// [mag moveItemAtPath:location toURL:[NSURL fileURLWithPath:file] error:nil];
NSLog(@"%@",location);
}];
[down resume];
}
-(void)down{
NSURLSession * session=[NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration] delegate:self delegateQueue:[[NSOperationQueue alloc]init]];
NSURLSessionDataTask * task=[session dataTaskWithRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.bz55.com/uploads/allimg/140918/138-14091PZ001.jpg"]]];
[task resume];
}
//2接收服务器的数据
-(void)URLSession:(NSURLSession *)session dataTask:(nonnull NSURLSessionDataTask *)dataTask didReceiveData:(nonnull NSData *)data{
NSLog(@"%s",__func__);
[_data appendData:data];
NSOperationQueue * quer=[NSOperationQueue mainQueue];
[quer addOperationWithBlock:^{
_imageview.image=[UIImage imageWithData:_data];
NSLog(@"%@",[NSThread currentThread]);
}];
NSLog(@"%@",data);
}
//1接收服务器响应
-(void)URLSession:(NSURLSession *)session dataTask:(nonnull NSURLSessionDataTask *)dataTask didReceiveResponse:(nonnull NSURLResponse *)response completionHandler:(nonnull void (^)(NSURLSessionResponseDisposition))completionHandler{
completionHandler(NSURLSessionResponseAllow);
NSLog(@"%s",__func__);
}
//3请求失败或者成功
-(void)URLSession:(NSURLSession *)session task:(NSURLSessionTask *)task didCompleteWithError:(NSError *)error{
NSLog(@"%s",__func__);
NSLog(@"%@",error);
}
大文件下载
-(void)downBig
{
NSURLSession * session=[NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration] delegate:self delegateQueue:[[NSOperationQueue alloc]init]];
NSURLSessionDownloadTask * down=[session downloadTaskWithURL: [NSURL URLWithString:@"http://www.xiufa.com/BJUI/plugins/kindeditor_4.1.10/attached/image/20160427/20160427020327_69298.png"]];
[down resume];
}
#pragma mark NSURLSessionDownloadDelegate
-(void)URLSession:(NSURLSession *)session downloadTask:(NSURLSessionDownloadTask *)downloadTask didResumeAtOffset:(int64_t)fileOffset expectedTotalBytes:(int64_t)expectedTotalBytes{
}
/**
* 每次写入数据到临时文件时，就会调用一次这个方法
* @param bytesWritten 这个词写入多少
* @param totalBytesWritten 已写入多少
* @param totalBytesExpectedToWrite 总大小
*/
-(void)URLSession:(NSURLSession *)session downloadTask:(NSURLSessionDownloadTask *)downloadTask didWriteData:(int64_t)bytesWritten totalBytesWritten:(int64_t)totalBytesWritten totalBytesExpectedToWrite:(int64_t)totalBytesExpectedToWrite{
NSLog(@"---%f---",1.0*totalBytesExpectedToWrite/totalBytesWritten);
}
//下载完毕
-(void)URLSession:(NSURLSession *)session downloadTask:(NSURLSessionDownloadTask *)downloadTask didFinishDownloadingToURL:(NSURL *)location
{
//文件将存放的真实路径
NSString * file=[[NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES)lastObject]stringByAppendingPathComponent:downloadTask.response.suggestedFilename];
NSFileManager * mag=[NSFileManager defaultManager];
[mag moveItemAtURL:location toURL:[NSURL fileURLWithPath:file] error:nil];
}
小文件下载
-(void)download{
NSURLSession * session=[NSURLSession sharedSession];
NSURLSessionDownloadTask * down= [session downloadTaskWithURL:[NSURL URLWithString:@"http://www.xiufa.com/BJUI/plugins/kindeditor_4.1.10/attached/image/20160427/20160427020327_69298.png"] completionHandler:^(NSURL * _Nullable location, NSURLResponse * _Nullable response, NSError * _Nullable error) {
NSString * file=[[NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES)lastObject] stringByAppendingPathComponent:response.suggestedFilename];
NSFileManager * mag=[NSFileManager defaultManager];
[mag moveItemAtURL:location toURL:[NSURL fileURLWithPath:file] error:nil];
// [mag moveItemAtPath:location toURL:[NSURL fileURLWithPath:file] error:nil];
NSLog(@"%@",location);
}];
[down resume];
}
//2接收服务器的数据
-(void)URLSession:(NSURLSession *)session dataTask:(nonnull NSURLSessionDataTask *)dataTask didReceiveData:(nonnull NSData *)data{
NSLog(@"%s",__func__);
[_data appendData:data];
NSOperationQueue * quer=[NSOperationQueue mainQueue];
[quer addOperationWithBlock:^{
_imageview.image=[UIImage imageWithData:_data];
NSLog(@"%@",[NSThread currentThread]);
}];
NSLog(@"%@",data);
}
//1接收服务器响应
-(void)URLSession:(NSURLSession *)session dataTask:(nonnull NSURLSessionDataTask *)dataTask didReceiveResponse:(nonnull NSURLResponse *)response completionHandler:(nonnull void (^)(NSURLSessionResponseDisposition))completionHandler{
completionHandler(NSURLSessionResponseAllow);
NSLog(@"%s",__func__);
}
//3请求失败或者成功
-(void)URLSession:(NSURLSession *)session task:(NSURLSessionTask *)task didCompleteWithError:(NSError *)error{
NSLog(@"%s",__func__);
NSLog(@"%@",error);
}
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