iOS批量上传图片(多图上传)

发布时间:2017-5-23 3:37:24 编辑:www.fx114.net 分享查询网我要评论
本篇文章主要介绍了"iOS批量上传图片(多图上传)",主要涉及到iOS批量上传图片(多图上传)方面的内容,对于iOS批量上传图片(多图上传)感兴趣的同学可以参考一下。

由于iOS无法通过html表单来上传图片,因此想要上传图片,必须实现http请求,而不能像其他语言那样通过html表单的post就能上传,做单图上传时参考网上的例子可以实现,但是发现网上的例子不支持多张上传,所以自己仿照单图的格式写了一个多图上传的。其实只要格式拼接正确就可以实现多图上传的功能。 .h文件实现 #import <Foundation/Foundation.h> @interface PicUpload : NSObject + (NSString *)postRequestWithURL: (NSString *)url // IN postParems: (NSMutableDictionary *)postParems // IN picFilePath: (NSMutableArray *)picFilePath // IN picFileName: (NSMutableArray *)picFileName ; @end .m文件实现 // Copyright (c) 2014年 Clover. All rights reserved. #import "PicUpload.h" #import "SVProgressHUD.h" #import "SBJson.h" #import "Singleton.h" @implementation PicUpload static NSString * const FORM_FLE_INPUT = @"file1"; + (NSString *)postRequestWithURL: (NSString *)url postParems: (NSMutableDictionary *)postParems picFilePath: (NSMutableArray *)picFilePath picFileName: (NSMutableArray *)picFileName { NSString *hyphens = @"--"; NSString *boundary = @"*****"; NSString *end = @"\r\n"; NSMutableData *myRequestData1=[NSMutableData data]; //遍历数组,添加多张图片 for (int i = 0; i < picFilePath.count; i ++) { NSData* data; UIImage *image=[UIImage imageWithContentsOfFile:[picFilePath objectAtIndex:i]]; //判断图片是不是png格式的文件 if (UIImagePNGRepresentation(image)) { //返回为png图像。 data = UIImagePNGRepresentation(image); }else { //返回为JPEG图像。 data = UIImageJPEGRepresentation(image, 1.0); } //所有字段的拼接都不能缺少,要保证格式正确 [myRequestData1 appendData:[hyphens dataUsingEncoding:NSUTF8StringEncoding]]; [myRequestData1 appendData:[boundary dataUsingEncoding:NSUTF8StringEncoding]]; [myRequestData1 appendData:[end dataUsingEncoding:NSUTF8StringEncoding]]; NSMutableString *fileTitle=[[NSMutableString alloc]init]; //要上传的文件名和key,服务器端用file接收 [fileTitle appendFormat:@"Content-Disposition:form-data;name=\"%@\";filename=\"%@\"",[NSString stringWithFormat:@"file%d",i+1],[NSString stringWithFormat:@"image%d.png",i+1]]; [fileTitle appendString:end]; [fileTitle appendString:[NSString stringWithFormat:@"Content-Type:application/octet-stream%@",end]]; [fileTitle appendString:end]; [myRequestData1 appendData:[fileTitle dataUsingEncoding:NSUTF8StringEncoding]]; [myRequestData1 appendData:data]; [myRequestData1 appendData:[end dataUsingEncoding:NSUTF8StringEncoding]]; } [myRequestData1 appendData:[hyphens dataUsingEncoding:NSUTF8StringEncoding]]; [myRequestData1 appendData:[boundary dataUsingEncoding:NSUTF8StringEncoding]]; [myRequestData1 appendData:[hyphens dataUsingEncoding:NSUTF8StringEncoding]]; [myRequestData1 appendData:[end dataUsingEncoding:NSUTF8StringEncoding]]; //参数的集合的所有key的集合 NSArray *keys= [postParems allKeys]; //添加其他参数 for(int i=0;i<[keys count];i++) { NSMutableString *body=[[NSMutableString alloc]init]; [body appendString:hyphens]; [body appendString:boundary]; [body appendString:end]; //得到当前key NSString *key=[keys objectAtIndex:i]; //添加字段名称 [body appendFormat:@"Content-Disposition: form-data; name=\"%@\"",key]; [body appendString:end]; [body appendString:end]; //添加字段的值 [body appendFormat:@"%@",[postParems objectForKey:key]]; [body appendString:end]; [myRequestData1 appendData:[body dataUsingEncoding:NSUTF8StringEncoding]]; NSLog(@"添加字段的值==%@",[postParems objectForKey:key]); } //根据url初始化request NSMutableURLRequest* request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:url] cachePolicy:NSURLRequestReloadIgnoringLocalCacheData timeoutInterval:20]; //设置HTTPHeader中Content-Type的值 NSString *content=[[NSString alloc]initWithFormat:@"multipart/form-data; boundary=%@",boundary]; //设置HTTPHeader [request setValue:content forHTTPHeaderField:@"Content-Type"]; //设置Content-Length [request setValue:[NSString stringWithFormat:@"%d", [myRequestData1 length]] forHTTPHeaderField:@"Content-Length"]; //设置http body [request setHTTPBody:myRequestData1]; //http method [request setHTTPMethod:@"POST"]; NSHTTPURLResponse *urlResponese = nil; NSError *error = [[NSError alloc]init]; NSData* resultData = [NSURLConnection sendSynchronousRequest:request returningResponse:&urlResponese error:&error]; NSString* result= [[NSString alloc] initWithData:resultData encoding:NSUTF8StringEncoding]; if([urlResponese statusCode] >=200&&[urlResponese statusCode]<300){ NSLog(@"返回结果=====%@",result); SBJsonParser *parser = [[SBJsonParser alloc ] init]; NSDictionary *jsonobj = [parser objectWithString:result]; if (jsonobj == nil || (id)jsonobj == [NSNull null] || [[jsonobj objectForKey:@"flag"] intValue] == 0) { dispatch_async(dispatch_get_main_queue(), ^{ UIAlertView* alert = [[UIAlertView alloc] initWithTitle:@"提示" message:@"提交失败." delegate:nil cancelButtonTitle:@"确定" otherButtonTitles:nil, nil]; [alert show]; }); } else { dispatch_async(dispatch_get_main_queue(), ^{ UIAlertView* alert = [[UIAlertView alloc] initWithTitle:@"提示" message:@"提交成功." delegate:nil cancelButtonTitle:@"确定" otherButtonTitles:nil, nil]; [Singleton sharedSingleton].shopId = [[jsonobj objectForKey:@"shopId"]stringValue]; [alert show]; }); } return result; } else if (error) { NSLog(@"%@",error); [[NSNotificationCenter defaultCenter]postNotificationName:@"dissmissSVP" object:nil]; UIAlertView* alert = [[UIAlertView alloc] initWithTitle:@"提示" message:@"提交失败." delegate:nil cancelButtonTitle:@"确定" otherButtonTitles:nil, nil]; [alert show]; return nil; } else return nil; } @end 在需要上传图片的界面使用如下代码调用该上传类:使用时根据需要进行相应调整就可以。 [SVProgressHUD showWithStatus:@"上传中,请稍候..." maskType:SVProgressHUDMaskTypeClear]; dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ NSMutableDictionary * dir=[NSMutableDictionary dictionaryWithCapacity:7]; //像字典添加除图片之外的相关参数 [dir setValue:@"0" forKey:@"longitude"]; [dir setValue:@"0" forKey:@"latitude"]; NSString *url = [NSString stringWithFormat:@"[email protected]",OA_DOMAIN]; NSLog(@"有图片上传");//self.pathArray存储要被上传的图片的路径,self.nameArray存储要被上传的图片的名称 [PicUpload postRequestWithURL:url postParems:dir picFilePath:self.pathArray picFileName:self.nameArray]; }); 相关代码下载地址:http://download.csdn.net/detail/u011918080/6947253

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