方法一:表单提交
NSString *fileName = [[NSBundle mainBundle] pathForResource:@"imageName" ofType:@"png"];//获取图片在本地的地址
ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL: [NSURL URLWithString: url]];
[request setFile:fileName forKey:@"image"];
[request setDelegate:delegate];
[request setTimeOutSeconds:TIME_OUT_SECONDS];
[request startAsynchronous];
方法二:POST:
/*
ios中获取图片的方法有两种,一种是UIImageJPEGRepresentation(image,0-1之间的压缩比例),一种是UIImagePNGRepresentation(直接放UIImage)
前者获取到图片的数据量要比后者的小很多。。
*/
UIImage *im = [UIImage imageNamed:@"imageName"];//通过path图片路径获取图片
NSData *data = UIImagePNGRepresentation(im);//获取图片数据
NSMutableData *imageData = [NSMutableData dataWithData:data];//ASIFormDataRequest 的setPostBody 方法需求的为NSMutableData类型
ASIFormDataRequest *aRequest = [[ASIFormDataRequest alloc] initWithURL:[NSURL URLWithString:url]];
[aRequest setDelegate:delegate];//代理
[aRequest setRequestMethod:@"POST"];
[aRequest setPostBody:imageData];
[aRequest addRequestHeader:@"Content-Type" value:@"image/png"];//这里的value值 需与服务器端 一致
[aRequest startAsynchronous];//开始。异步
[aRequest setDidFinishSelector:@selector(headPortraitSuccess)];//当成功后会自动触发 headPortraitSuccess 方法
[aRequest setDidFailSelector:@selector(headPortraitFail)];//如果失败会 自动触发 headPortraitFail 方法