最近搞图片上传，折腾了一个星期终于做出来了，网上搜出来的方法几乎都是好几年前的，试了好多都不能用，此次把代码公布出来供大家参考。
注：部分代码是后台写的，此方法没用到第三方库。
1.图片保存到本地同时上传服务器
(void)saveImage:(UIImage *)image {
//NSLog(@“保存头像！”);
//[userPhotoButton setImage:image forState:UIControlStateNormal];
BOOL success;
NSFileManager *fileManager = [NSFileManager defaultManager];
NSError *error;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *imageFilePath = [documentsDirectory stringByAppendingPathComponent:@“selfPhoto.jpg”];
NSLog(@“imageFile->>%@”,imageFilePath);
success = [fileManager fileExistsAtPath:imageFilePath];
if(success) {
success = [fileManager removeItemAtPath:imageFilePath error:&error];
}
//UIImagesmallImage=[self scaleFromImage:image toSize:CGSizeMake(80.0f, 80.0f)];//将图片尺寸改为8080
UIImage *smallImage = [self thumbnailWithImageWithoutScale:image size:CGSizeMake(93, 93)];
[UIImageJPEGRepresentation(smallImage, 1.0f) writeToFile:imageFilePath atomically:YES];//写入文件
UIImage *selfPhoto = [UIImage imageWithContentsOfFile:imageFilePath];//读取图片文件
self.img.image = selfPhoto;
NSLog(@“selfPhoto = %@”,selfPhoto);
NSURL * url = [NSURL URLWithString:@"http://blog.sina.com.cn/tmyij"];
NSData *imageData = UIImageJPEGRepresentation(selfPhoto,1.0f);
[self uploadFileWithURL:url data:imageData];
}
2.下面俩个方法都是设置请求参数
static NSString *boundaryStr = @"–";
static NSStringrandomIDStr = @"****";
static NSString *uploadID = @“file”;
(NSString *)topStringWithMimeType:(NSString *)mimeType uploadFile:(NSString *)uploadFile
{
NSMutableString *strM = [NSMutableString string];
[strM appendFormat:@"%@%@\r\n", boundaryStr, randomIDStr];
[strM appendFormat:@“Content-Disposition: form-data; name=”%@"; filename="%@"\r\n", uploadID, uploadFile];
[strM appendFormat:@“Content-Type: %@\r\n”, mimeType];
[strM appendFormat:@"\r\n"];
NSLog(@"%@", strM);
return [strM copy];
}
(NSString *)bottomString
{
NSMutableString *strM = [NSMutableString string];
[strM appendFormat:@"%@%@\r\n", boundaryStr, randomIDStr];
[strM appendString:@“Content-Disposition:form-data; name=“number”\r\n”];
[strM appendFormat:@"\r\n"];
[strM appendString:@“1234566788”];//上传的参数parameter
[strM appendFormat:@"\r\n"];
NSLog(@"%@", strM);
return [strM copy];
}
3.图片上传服务器
(void)uploadFileWithURL:(NSURL *)url data:(NSData *)data
{
NSString *topStr = [self topStringWithMimeType:@“application/img” uploadFile:@“myHead.jpg”];
NSString *bottomStr = [self bottomString];
NSMutableData *dataM = [NSMutableData data];
[dataM appendData:[bottomStr dataUsingEncoding:NSUTF8StringEncoding]];
[dataM appendData:[topStr dataUsingEncoding:NSUTF8StringEncoding]];
[dataM appendData:data];
[dataM appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
NSString * s = [NSString stringWithFormat:@"%@%@%@\r\n",boundaryStr, randomIDStr, boundaryStr];
[dataM appendData:[str22 dataUsingEncoding:NSUTF8StringEncoding]];
NSLog(@"%@%@%@",topStr,data,bottomStr);
// 1. Request
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url cachePolicy:0 timeoutInterval:20.0f];
request.HTTPBody = dataM;
request.HTTPMethod = @“POST”;
NSString *strLength = [NSString stringWithFormat:@"%ld", (long)dataM.length];
[request setValue:strLength forHTTPHeaderField:@“Content-Length”];
NSString *strContentType = [NSString stringWithFormat:@“multipart/form-data;boundary=%@”, randomIDStr];
[request setValue:strContentType forHTTPHeaderField:@“Content-Type”];
[NSURLConnection sendAsynchronousRequest:request
queue:[[NSOperationQueue alloc] init] completionHandler:^(NSURLResponse
*response, NSData *data, NSError *connectionError) {
NSString *result = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
NSLog(@"%@", result);
}];
}
