- (NSString *)SaveFileToDocuments:(NSString *)url
{
// NSString *url = @"http://172.28.250.70/ad/20140210151602.jpg";
NSString *FileName = [url lastPathComponent];
NSString *resultFilePath = @"";
if (url.length > 7) {
NSString *destFolderPath = [[NSHomeDirectory() stringByAppendingPathComponent:@"Documents"] stringByAppendingPathComponent:@"IadImages"];
NSString *destFilePath = [destFolderPath stringByAppendingPathComponent:url];
if (! [[NSFileManager defaultManager] fileExistsAtPath:destFolderPath]) { //判断文件夹是否存在
[[NSFileManagerdefaultManager] createDirectoryAtPath:destFolderPath withIntermediateDirectories:YESattributes:nilerror:nil];
}
if ([[NSFileManager defaultManager] fileExistsAtPath:destFilePath]) { //判断文件是否存在
resultFilePath = destFilePath;
} else {
NSData *imageData = [NSData dataWithContentsOfURL:[NSURL URLWithString:url]];
if ([imageData writeToFile:destFilePath atomically:YES]) {
resultFilePath = destFilePath;
}
else {
resultFilePath = destFilePath;
}
}
}
return resultFilePath;
}
- (NSString*)UTF8_To_GB2312:(NSString*)utf8string
{
NSStringEncoding encoding =CFStringConvertEncodingToNSStringEncoding(kCFStringEncodingGB_18030_2000);
NSData* gb2312data = [utf8string dataUsingEncoding:encoding];
return [[NSString alloc] initWithData:gb2312data encoding:encoding];
}