有很多情况下，App客户端需要上传图片到后台，我实现的一种方法是把图片转成base64位，上传到后台，后台返回保存图片的链接地址，然后把链接地址在上传到后台，多个图片时，就把得到的多个链接地址上传到后台，代码如下:
- (void)chooseImageWithIndex:(NSInteger)ind{
_imgIndex = ind;
ChooseImgView *view = [LZ_NibViewHelper viewWithNibName:@"ChooseImgView"];
view.theWayChooseImg = ^(NSInteger index){
if(index==2) return;
// act_flag=index;
UIImagePickerControllerSourceType sourceType=UIImagePickerControllerSourceTypePhotoLibrary;
if(index==0){//拍照
sourceType=UIImagePickerControllerSourceTypeCamera;
if (![UIImagePickerController isSourceTypeAvailable:sourceType]){
kAlertMessage(@"检测到无效的摄像头设备");
return ;
}
}
UIImagePickerController * picker = [[UIImagePickerController alloc]init];
picker.delegate = self;
picker.allowsEditing=YES;
picker.sourceType=sourceType;
picker.modalTransitionStyle = UIModalTransitionStyleCoverVertical;
[self presentViewController:picker animated:YES completion:nil];
};
[view showInTheView:self.view.window withCustomerType:self.customerType buttonndex:ind isQiye:0];
}
-(void)imagePickerController:(UIImagePickerController*)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
[picker dismissViewControllerAnimated:YES completion:nil];
NSString* imme_type;
if(picker.sourceType==UIImagePickerControllerSourceTypePhotoLibrary){
NSString *url;
NSURL *imageurl;
imageurl=[info objectForKey:UIImagePickerControllerReferenceURL];
url=[imageurl absoluteString];
NSRange range=[url rangeOfString:@"ext="];
imme_type =[[url substringFromIndex:range.location+4] lowercaseString];
if(![imme_type isEqualToString:@"png"] &&
![imme_type isEqualToString:@"jpeg"] &&
![imme_type isEqualToString:@"jpg"]){
kAlertMessage(@"图片非PNG、JPEG、JPG格式");
return;
}
}
else
imme_type=@"png";
UIImage* image = [info objectForKey:UIImagePickerControllerOriginalImage];
[self performSelector:@selector(selectPic:) withObject:image afterDelay:0.1];
}
- (void)selectPic:(UIImage*)image{
[self uploading:image];
}
#pragma mark-上传图片
-(void)uploading:(UIImage*)image1{
[self showLoading:YES AndText:@"请稍等"];
NSData *imageData = UIImageJPEGRepresentation(image1, 0.2);
NSString *base64Image=[imageData base64Encoding];
NSDictionary * dic = @{
@"base64":base64Image
};
[requestManager requestWebWithParaWithURL:url Parameter:dic Finish:^(NSDictionary *resultDic) {//请求成功
if ([resultDic objectForKey:@"data"]) {
[self hideLoading];
//得到的图片地址预保存在字典中
[self.dataImgDict setObject:[resultDic objectForKey:@"data"] forKey:[NSString stringWithFormat:@"%ld",(long)_imgIndex + 1]];
}
[self.tableView reloadData];
} Error:^(AFHTTPRequestOperation *operation, NSError *error, NSString *description) {//请求失败
[self showAllTextDialog:description];
[self hideLoading];
}];
}
多个图片上传就可以得到多个图片地址，再次上传图片地址就行了.