下面的截图，就是Img以file文件类型上传:
1.AFNetworking最新，3.0中也有封装好的方法，不过暂时没弄出来，项目做完在总结。
2.就是用系统自带就行处理.
下面是封装好的，绝对可用,只需要改变参数就可以了
下面加粗，斜线的地方，就是你参数名，需要修改的地方
+ (void)uploadImg:(UIImage *)image
urlString:(NSString *)urlString
parameters:(NSDictionary *)parameters
callBack:(RequestCallback)callBack {
//分界线的标识符
NSString *TWITTERFON_FORM_BOUNDARY = @"AaB03x";
//根据url初始化request
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:urlString]
cachePolicy:NSURLRequestReloadIgnoringLocalCacheData
timeoutInterval:30];
//分界线 --AaB03x
NSString *MPboundary=[[NSString alloc] initWithFormat:@"--%@", TWITTERFON_FORM_BOUNDARY];
//结束符 AaB03x--
NSString *endMPboundary=[[NSString alloc] initWithFormat:@"%@--", MPboundary];
//得到图片的data
// 压缩图片
NSData *imageData = nil;
CGFloat compression = 1.0;
do {
imageData = UIImageJPEGRepresentation(image, compression);
compression -= 0.1;
} while (imageData.length / 1024.0 > 300);
//http body的字符串
NSMutableString *body = [[NSMutableString alloc] init];
//参数的集合的所有key的集合
for (NSString *key in [parameters allKeys]) {
//添加分界线，换行
[body appendFormat:@"%@\r\n",MPboundary];
//添加字段名称，换2行
[body appendFormat:@"Content-Disposition: form-data; name=\"%@\"\r\n\r\n",key];
//添加字段的值
[body appendFormat:@"%@\r\n",[parameters objectForKey:key]];
}
////添加分界线，换行
[body appendFormat:@"%@\r\n",MPboundary];
//声明pic字段，文件名为boris.png
[body appendFormat:@"Content-Disposition: form-data; name=\"headPortrait\"; filename=\"headPortrait.png\"\r\n"];
//声明上传文件的格式
[body appendFormat:@"Content-Type: image/png\r\n\r\n"];
//声明结束符：--AaB03x--
NSString *end=[[NSString alloc]initWithFormat:@"\r\n%@",endMPboundary];
//声明myRequestData，用来放入http body
NSMutableData *myRequestData=[NSMutableData data];
//将body字符串转化为UTF8格式的二进制
[myRequestData appendData:[body dataUsingEncoding:NSUTF8StringEncoding]];
//将image的data加入
[myRequestData appendData:imageData];
//加入结束符--AaB03x--
[myRequestData appendData:[end dataUsingEncoding:NSUTF8StringEncoding]];
//设置HTTPHeader中Content-Type的值
NSString *content=[[NSString alloc]initWithFormat:@"multipart/form-data; boundary=%@",TWITTERFON_FORM_BOUNDARY];
//设置HTTPHeader
[request setValue:content forHTTPHeaderField:@"Content-Type"];
//设置Content-Length
[request setValue:[NSString stringWithFormat:@"%ld", (long)[myRequestData length]] forHTTPHeaderField:@"Content-Length"];
//设置http body
[request setHTTPBody:myRequestData];
//http method
[request setHTTPMethod:@"POST"];
NSOperationQueue *queue = [[NSOperationQueue alloc] init];
[NSURLConnection sendAsynchronousRequest:request
queue:queue
completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {
dispatch_sync(dispatch_get_main_queue(), ^{
// 请求失败，返回错误对象
if (connectionError) {
if (callBack) {
callBack(RequestFailed, connectionError);
} else {
NSLog(@"Request failed with reason '%@'", [connectionError localizedDescription]);
}
return;
}
id object = [TYTools JSONObjectWithData:data];
// 请求成功，解析成功，返回json对象
if (object) {
if (callBack) {
callBack(RequestSuccess, object);
}
}
// 请求成功，解析失败，返回反馈字符串
else {
if (callBack) {
callBack(RequestException, object);
NSLog(@"数据异常：%@", object);
}
}
});
}];
}
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