iOS 多图上传


开始学习Objc20多天了，最近在弄多文件上传，在网上找了些代码，只是单文件的，折腾了两天，终于改成多文件上传的了。

xcode 6.1

iOS 8.0测试成功

希望别的人不要像我一样花时间在修改上。时间就是生命啊。。

+(NSString *)PostImagesToServer:(NSString *) strUrl dicPostParams:(NSMutableDictionary *)params dicImages:(NSMutableDictionary *) dicImages{
NSString * res;

//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:strUrl] cachePolicy:NSURLRequestReloadIgnoringLocalCacheData timeoutInterval:10];

NSURL *url = [NSURL URLWithString:strUrl];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
//分界线 --AaB03x
NSString *MPboundary=[[NSString alloc]initWithFormat:@"--%@",TWITTERFON_FORM_BOUNDARY];
//结束符 AaB03x--
NSString *endMPboundary=[[NSString alloc]initWithFormat:@"%@--",MPboundary];
//要上传的图片
UIImage *image;//=[params objectForKey:@"pic"];
//得到图片的data
//NSData* data = UIImagePNGRepresentation(image);
//http body的字符串
NSMutableString *body=[[NSMutableString alloc]init];
//参数的集合的所有key的集合
NSArray *keys= [params allKeys];

//遍历keys
for(int i=0;i<[keys count];i++) {
//得到当前key
NSString *key=[keys objectAtIndex:i];
//如果key不是pic，说明value是字符类型，比如name：Boris
//if(![key isEqualToString:@"pic"]) {
//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];
//[body appendString:@"Content-Transfer-Encoding: 8bit"];
//添加字段的值
[body appendFormat:@"%@\r\n",[params objectForKey:key]];
//}
}
////添加分界线，换行
//[body appendFormat:@"%@\r\n",MPboundary];

//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]];

//循环加入上传图片
keys = [dicImages allKeys];
for(int i = 0; i< [keys count] ; i++){
//要上传的图片
image = [dicImages objectForKey:[keys objectAtIndex:i ]];
//得到图片的data
NSData* data =  UIImageJPEGRepresentation(image, 0.0);
NSMutableString *imgbody = [[NSMutableString alloc] init];
//此处循环添加图片文件
//添加图片信息字段
//声明pic字段，文件名为boris.png
//[body appendFormat:[NSString stringWithFormat: @"Content-Disposition: form-data; name=\"File\"; filename=\"%@\"\r\n", [keys objectAtIndex:i]]];

////添加分界线，换行
[imgbody appendFormat:@"%@\r\n",MPboundary];
[imgbody appendFormat:@"Content-Disposition: form-data; name=\"File%d\"; filename=\"%@.jpg\"\r\n", i, [keys objectAtIndex:i]];
//声明上传文件的格式
[imgbody appendFormat:@"Content-Type: application/octet-stream; charset=utf-8\r\n\r\n"];

NSLog(@"上传的图片：%d  %@", i, [keys objectAtIndex:i]);

//将body字符串转化为UTF8格式的二进制
//[myRequestData appendData:[body dataUsingEncoding:NSUTF8StringEncoding]];
[myRequestData appendData:[imgbody dataUsingEncoding:NSUTF8StringEncoding]];
//将image的data加入
[myRequestData appendData:data];
[myRequestData appendData:[ @"\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
}
//声明结束符：--AaB03x--
NSString *end=[[NSString alloc]initWithFormat:@"%@\r\n",endMPboundary];
//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"];
//[request setValue:@"keep-alive" forHTTPHeaderField:@"connection"];
//[request setValue:@"UTF-8" forHTTPHeaderField:@"Charsert"];
//设置Content-Length
[request setValue:[NSString stringWithFormat:@"%lu", (unsigned long)[myRequestData length]] forHTTPHeaderField:@"Content-Length"];
//设置http body
[request setHTTPBody:myRequestData];
//http method
[request setHTTPMethod:@"POST"];

//建立连接，设置代理
//NSURLConnection *conn = [[NSURLConnection alloc] initWithRequest:request delegate:self];

//设置接受response的data
NSData *mResponseData;
NSError *err = nil;
mResponseData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:&err];

if(mResponseData == nil){
NSLog(@"err code : %@", [err localizedDescription]);
}
res = [[NSString alloc] initWithData:mResponseData encoding:NSUTF8StringEncoding];
/*
if (conn) {
mResponseData = [NSMutableData data];
mResponseData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:&err];

if(mResponseData == nil){
NSLog(@"err code : %@", [err localizedDescription]);
}
res = [[NSString alloc] initWithData:mResponseData encoding:NSUTF8StringEncoding];
}else{
res = [[NSString alloc] init];
}*/
NSLog(@"服务器返回：%@", res);
return res;
}