上传
单图片上传
- (void)uploadimgWithurl:(NSString *)urlStr image:(UIImage *)image fileName:(NSString *)fileName success:(void (^)(id responseObject))success fail:(void (^)())fail
{
//需要传递的参数,jason格式
NSDictionary *parameter = @{@"Driverid": @"10000"};
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.responseSerializer = [AFHTTPResponseSerializer serializer];
[manager POST:urlStr parameters:parameter constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
/*文件命名参考代码
// 在网络开发中，上传文件时，是文件不允许被覆盖，文件重名
// 要解决此问题，
// 可以在上传时使用当前的系统事件作为文件名
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
// 设置时间格式
formatter.dateFormat = @"yyyyMMddHHmmss";
NSString *str = [formatter stringFromDate:[NSDate date]];
NSString *newfileName = [NSString stringWithFormat:@"%@.png", str];
*/
[formData appendPartWithFileData:UIImagePNGRepresentation(image) name:@"file" fileName:fileName mimeType:@"image/png"];
} success:^(AFHTTPRequestOperation *operation, id responseObject) {
if (success) {
//NSLog(@"success\n");
success(responseObject);
}
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
if (fail) {
//NSLog(@"fail\n");
fail();
}
}];
}
多文件上传
- (void)uploadMutableimgWithurl:(NSString *)urlStr imagearray:(NSMutableArray *)imgarray success:(void (^)(id responseObject))success fail:(void (^)())fail
{
//需要传递的参数,jason格式
NSDictionary *parameter = @{@"Driverid": @"10000"};
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.responseSerializer = [AFHTTPResponseSerializer serializer];
[manager POST:urlStr parameters:parameter constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
/*文件命名参考代码
// 在网络开发中，上传文件时，是文件不允许被覆盖，文件重名
// 要解决此问题，
// 可以在上传时使用当前的系统事件作为文件名
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
// 设置时间格式
formatter.dateFormat = @"yyyyMMddHHmmss";
NSString *str = [formatter stringFromDate:[NSDate date]];
NSString *newfileName = [NSString stringWithFormat:@"%@.png", str];
*/
for (int i=0; i<[imgarray count]; i++) {
[formData appendPartWithFileData:UIImagePNGRepresentation([imgarray objectAtIndex:i]) name:[NSString stringWithFormat:@"file%d",i ] fileName:[NSString stringWithFormat:@"pic%d.png",i] mimeType:@"image/png"];
}
} success:^(AFHTTPRequestOperation *operation, id responseObject) {
if (success) {
//NSLog(@"success\n");
success(responseObject);
}
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
if (fail) {
//NSLog(@"fail\n");
fail();
}
}];
}
下载
NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];
// 1. 创建会话管理者
AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration];
// 2. 创建下载路径和请求对象
NSURL *URL = [NSURL URLWithString:@"http://dldir1.qq.com/qqfile/QQforMac/QQ_V5.4.0.dmg"];
NSURLRequest *request = [NSURLRequest requestWithURL:URL];
// 3.创建下载任务
/**
* 第一个参数 - request：请求对象
* 第二个参数 - progress：下载进度block
* 其中： downloadProgress.completedUnitCount：已经完成的大小
* downloadProgress.totalUnitCount：文件的总大小
* 第三个参数 - destination：自动完成文件剪切操作
* 其中： 返回值:该文件应该被剪切到哪里
* targetPath：临时路径 tmp NSURL
* response：响应头
* 第四个参数 - completionHandler：下载完成回调
* 其中： filePath：真实路径 == 第三个参数的返回值
* error:错误信息
*/
NSURLSessionDownloadTask *downloadTask = [manager downloadTaskWithRequest:request progress:^(NSProgress *downloadProgress) {
// 下载进度
self.progressView.progress = 1.0 * downloadProgress.completedUnitCount / downloadProgress.totalUnitCount;
self.progressLabel.text = [NSString stringWithFormat:@"当前下载进度:%.2f%%",100.0 * downloadProgress.completedUnitCount / downloadProgress.totalUnitCount];
} destination:^NSURL *(NSURL *targetPath, NSURLResponse *response) {
NSURL *path = [[NSFileManager defaultManager] URLForDirectory:NSDocumentDirectory inDomain:NSUserDomainMask appropriateForURL:nil create:NO error:nil];
return [path URLByAppendingPathComponent:@"QQ_V5.4.0.dmg"];
} completionHandler:^(NSURLResponse *response, NSURL *filePath, NSError *error) {
NSLog(@"File downloaded to: %@", filePath);
}];
// 4. 开启下载任务
[downloadTask resume];
AFNetworking 断点下载
@interface ViewController ()
/** 下载进度条 */
@property (weak, nonatomic) IBOutlet UIProgressView *progressView;
/** 下载进度条Label */
@property (weak, nonatomic) IBOutlet UILabel *progressLabel;
/** AFNetworking断点下载（支持离线）需用到的属性 **********/
/** 文件的总长度 */
@property (nonatomic, assign) NSInteger fileLength;
/** 当前下载长度 */
@property (nonatomic, assign) NSInteger currentLength;
/** 文件句柄对象 */
@property (nonatomic, strong) NSFileHandle *fileHandle;
/** 下载任务 */
@property (nonatomic, strong) NSURLSessionDataTask *downloadTask;
/* AFURLSessionManager */
@property (nonatomic, strong) AFURLSessionManager *manager;
@end
/**
* manager的懒加载
*/
- (AFURLSessionManager *)manager {
if (!_manager) {
NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];
// 1. 创建会话管理者
_manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration];
}
return _manager;
}
/**
* downloadTask的懒加载
*/
- (NSURLSessionDataTask *)downloadTask {
if (!_downloadTask) {
// 创建下载URL
NSURL *url = [NSURL URLWithString:@"http://dldir1.qq.com/qqfile/QQforMac/QQ_V5.4.0.dmg"];
// 2.创建request请求
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
// 设置HTTP请求头中的Range
NSString *range = [NSString stringWithFormat:@"bytes=%zd-", self.currentLength];
[request setValue:range forHTTPHeaderField:@"Range"];
__weak typeof(self) weakSelf = self;
_downloadTask = [self.manager dataTaskWithRequest:request completionHandler:^(NSURLResponse * _Nonnull response, id _Nullable responseObject, NSError * _Nullable error) {
NSLog(@"dataTaskWithRequest");
// 清空长度
weakSelf.currentLength = 0;
weakSelf.fileLength = 0;
// 关闭fileHandle
[weakSelf.fileHandle closeFile];
weakSelf.fileHandle = nil;
}];
[self.manager setDataTaskDidReceiveResponseBlock:^NSURLSessionResponseDisposition(NSURLSession * _Nonnull session, NSURLSessionDataTask * _Nonnull dataTask, NSURLResponse * _Nonnull response) {
NSLog(@"NSURLSessionResponseDisposition");
// 获得下载文件的总长度：请求下载的文件长度 + 当前已经下载的文件长度
weakSelf.fileLength = response.expectedContentLength + self.currentLength;
// 沙盒文件路径
NSString *path = [[NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) lastObject] stringByAppendingPathComponent:@"QQ_V5.4.0.dmg"];
NSLog(@"File downloaded to: %@",path);
// 创建一个空的文件到沙盒中
NSFileManager *manager = [NSFileManager defaultManager];
if (![manager fileExistsAtPath:path]) {
// 如果没有下载文件的话，就创建一个文件。如果有下载文件的话，则不用重新创建(不然会覆盖掉之前的文件)
[manager createFileAtPath:path contents:nil attributes:nil];
}
// 创建文件句柄
weakSelf.fileHandle = [NSFileHandle fileHandleForWritingAtPath:path];
// 允许处理服务器的响应，才会继续接收服务器返回的数据
return NSURLSessionResponseAllow;
}];
[self.manager setDataTaskDidReceiveDataBlock:^(NSURLSession * _Nonnull session, NSURLSessionDataTask * _Nonnull dataTask, NSData * _Nonnull data) {
NSLog(@"setDataTaskDidReceiveDataBlock");
// 指定数据的写入位置 -- 文件内容的最后面
[weakSelf.fileHandle seekToEndOfFile];
// 向沙盒写入数据
[weakSelf.fileHandle writeData:data];
// 拼接文件总长度
weakSelf.currentLength += data.length;
// 获取主线程，不然无法正确显示进度。
NSOperationQueue* mainQueue = [NSOperationQueue mainQueue];
[mainQueue addOperationWithBlock:^{
// 下载进度
if (weakSelf.fileLength == 0) {
weakSelf.progressView.progress = 0.0;
weakSelf.progressLabel.text = [NSString stringWithFormat:@"当前下载进度:00.00%%"];
} else {
weakSelf.progressView.progress = 1.0 * weakSelf.currentLength / weakSelf.fileLength;
weakSelf.progressLabel.text = [NSString stringWithFormat:@"当前下载进度:%.2f%%",100.0 * weakSelf.currentLength / weakSelf.fileLength];
}
}];
}];
}
return _downloadTask;
}
/**
* 点击按钮 -- 使用AFNetworking断点下载（支持离线）
*/
- (IBAction)OfflinResumeDownloadBtnClicked:(UIButton *)sender {
// 按钮状态取反
sender.selected = !sender.isSelected;
if (sender.selected) { // [开始下载/继续下载]
// 沙盒文件路径
NSString *path = [[NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) lastObject] stringByAppendingPathComponent:@"QQ_V5.4.0.dmg"];
NSInteger currentLength = [self fileLengthForPath:path];
if (currentLength > 0) { // [继续下载]
self.currentLength = currentLength;
}
[self.downloadTask resume];
} else {
[self.downloadTask suspend];
self.downloadTask = nil;
}
}
/**
* 获取已下载的文件大小
*/
- (NSInteger)fileLengthForPath:(NSString *)path {
NSInteger fileLength = 0;
NSFileManager *fileManager = [[NSFileManager alloc] init]; // default is not thread safe
if ([fileManager fileExistsAtPath:path]) {
NSError *error = nil;
NSDictionary *fileDict = [fileManager attributesOfItemAtPath:path error:&error];
if (!error && fileDict) {
fileLength = [fileDict fileSize];
}
}
return fileLength;
}
