本人也是小白，最近在做公司自己的项目，我就把项目中实用的我自己总结了一下，希望能帮助到和我一样刚开发的人，这一次总结得是用AFNetworking 向后台传输一张或多张图片，并且将照片压缩，感觉还是AFNetworking好使，相比原生的NSSURLsession的传输方法，话不多说，开始分享，用的话，代码基本不用改，直接用~
上传一张图片
UIImage *image = [UIImage imageNamed:@"3"];
NSMutableDictionary *photo = [NSMutableDictionary dictionary];
[photo setObject:@"123" forKey:@"phoneNumber"];
[photo setObject:@"123" forKey:@"psw"];
NSLog(@"1111%@",photo);
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
manager.requestSerializer.timeoutInterval = 20;
manager.responseSerializer.acceptableContentTypes = [NSSet setWithArray:@[@"text/plain",@"multipart/form-data"]];
[manager POST:@"http://192.168.0.105:8080/miracle/Upload.action" parameters:photo constructingBodyWithBlock:^(id<AFMultipartFormData> _Nonnull formData) {
NSDate *date = [NSDate date];
NSDateFormatter *formormat = [[NSDateFormatter alloc]init];
[formormat setDateFormat:@"HHmmss"];
NSString *dateString = [formormat stringFromDate:date];
NSString *fileName = [NSString stringWithFormat:@"%@.png",dateString];
NSData *imageData = UIImageJPEGRepresentation(image, 1);
double scaleNum = (double)300*1024/imageData.length;
NSLog(@"图片压缩率：%f",scaleNum);
if(scaleNum <1){
imageData = UIImageJPEGRepresentation(image, scaleNum);
}else{
imageData = UIImageJPEGRepresentation(image, 0.1);
}
[formData appendPartWithFileData:imageData name:@"files" fileName:fileName mimeType:@"image/jpg/png/jpeg"];
} progress:^(NSProgress * _Nonnull uploadProgress) {
NSLog(@"---%@",uploadProgress);
} success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
NSLog(@"`````````%@",responseObject);
NSDictionary *datas = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingMutableContainers | NSJSONReadingMutableLeaves error:nil];
//
NSLog(@"请求成功%@",datas);
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
}];
```
## 上传多张图片
NSArray * _imageArr = @[@"1",@"2",@"3"];
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
manager.requestSerializer.timeoutInterval = 20;
manager.responseSerializer.acceptableContentTypes = [NSSet setWithArray:@[@"text/plain",@"multipart/form-data"]];
[manager POST:@"http://192.168.0.105:8080/miracle/Upload.action" parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> _Nonnull formData) {
for (int i=0; i<_imageArr.count; i++) {
UIImage * image =[UIImage imageNamed:_imageArr[i]];
NSDate *date = [NSDate date];
NSDateFormatter *formormat = [[NSDateFormatter alloc]init];
[formormat setDateFormat:@"HHmmss"];
NSString *dateString = [formormat stringFromDate:date];
NSString *fileName = [NSString stringWithFormat:@"%@.png",dateString];
NSData *imageData = UIImageJPEGRepresentation(image, 1);
double scaleNum = (double)300*1024/imageData.length;
NSLog(@"图片压缩率：%f",scaleNum);
if(scaleNum <1){
imageData = UIImageJPEGRepresentation(image, scaleNum);
}else{
imageData = UIImageJPEGRepresentation(image, 0.1);
}
[formData appendPartWithFileData:imageData name:@"files" fileName:fileName mimeType:@"image/jpg/png/jpeg"];
}
} progress:^(NSProgress * _Nonnull uploadProgress) {
NSLog(@"---%@",uploadProgress);
} success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
NSLog(@"`````````%@",responseObject);
NSDictionary *datas = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingMutableContainers | NSJSONReadingMutableLeaves error:nil];
//
NSLog(@"请求成功%@",datas);
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
}];
```