本文为大家介绍了iOS开发ASIHttpRequest发送数据的内容,其中包括设定request头,使用ASIFormDataRequest POST表单,PUT请求、自定义POST请求等等内容。
设定request头
- ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
- [request addRequestHeader:@"Referer" value:@"http://www.dreamingwish.com/"];
使用ASIFormDataRequest POST表单
通常数据是以’application/x-www-form-urlencoded’格式发送的,如果上传了二进制数据或者文件,那么格式将自动变为‘multipart/form-data’ 。
文件中的数据是需要时才从磁盘加载,所以只要web server能处理,那么上传大文件是没有问题的。
- ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url];
- [request setPostValue:@"Ben" forKey:@"first_name"];
- [request setPostValue:@"Copsey" forKey:@"last_name"];
- [request setFile:@"/Users/ben/Desktop/ben.jpg" forKey:@"photo"];
数据的mime头是自动判定的,但是如果你想自定义mime头,那么这样:
- ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url];
- // Upload a file on disk
- [request setFile:@"/Users/ben/Desktop/ben.jpg" withFileName:@"myphoto.jpg" andContentType:@"image/jpeg"
- forKey:@"photo"];
- // Upload an NSData instance
- [request setData:imageData withFileName:@"myphoto.jpg" andContentType:@"image/jpeg" forKey:@"photo"];
你可以使用addPostValue方法来发送相同name的多个数据(梦维:服务端会以数组方式呈现):
- ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url];
- [request addPostValue:@"Ben" forKey:@"names"];
- [request addPostValue:@"George" forKey:@"names"];
- [request addFile:@"/Users/ben/Desktop/ben.jpg" forKey:@"photos"];
- [request addData:imageData withFileName:@"george.jpg" andContentType:@"image/jpeg" forKey:@"photos"];
PUT请求、自定义POST请求
如果你想发送PUT请求,或者你想自定义POST请求,使用appendPostData: 或者 appendPostDataFromFile:
- ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
- [request appendPostData:[@"This is my data" dataUsingEncoding:NSUTF8StringEncoding]];
- // Default becomes POST when you use appendPostData: / appendPostDataFromFile: / setPostBody:
- [request setRequestMethod:@"PUT"];