iOS用ASIFormDataRequest实现图片上传

来源：互联网发布：算法设计与分析怎么学编辑：程序博客网时间：2024/06/04 18:09

方法一：表单提交

    NSString *fileName = [[NSBundle mainBundle] pathForResource:@"color_blue" ofType:@"png"];    ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL: [NSURL URLWithString: url]];    //[request setPostValue:@"photo" forKey:@"type"];    [request setFile:fileName forKey:@"image"];//    [request buildRequestHeaders];//    [request buildPostBody];    [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 ，一种是UIImagePNGRepresentation 前者获取到图片的数据量要比后者的小很多。。*/    UIImage *im = [UIImage imageNamed:@"color_blue"];//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