/**
* 上传带图片的内容，允许多张图片上传（URL）POST
*
* @param url 网络请求地址
* @param images 要上传的图片数组（注意数组内容需是图片）
* @param parameter 图片数组对应的参数
* @param parameters 其他参数字典
* @param ratio 图片的压缩比例（0.0~1.0之间）
* @param succeedBlock 成功的回调
* @param failedBlock 失败的回调
* @param uploadProgressBlock 上传进度的回调
*/
+(void)startMultiPartUploadTaskWithURL:(NSString *)url
imagesArray:(NSArray *)images
parameterOfimages:(NSString *)parameter
parametersDict:(NSDictionary *)parameters
compressionRatio:(float)ratio
succeedBlock:(void(^)(id operation, id responseObject))succeedBlock
failedBlock:(void(^)(id operation, NSError *error))failedBlock
uploadProgressBlock:(void(^)(float uploadPercent,long long totalBytesWritten,long long totalBytesExpectedToWrite))uploadProgressBlock;
实现：
+(void)startMultiPartUploadTaskWithURL:(NSString *)url
imagesArray:(NSArray *)images
parameterOfimages:(NSString *)parameter
parametersDict:(NSDictionary *)parameters
compressionRatio:(float)ratio
succeedBlock:(void (^)(id, id))succeedBlock
failedBlock:(void (^)(id, NSError *))failedBlock
uploadProgressBlock:(void (^)(float, long long, long long))uploadProgressBlock{
if (images.count == 0) {
NSLog(@"上传内容没有包含图片");
return;
}
for (int i = 0; i < images.count; i++) {
if (![images isKindOfClass:[UIImage class]]) {
NSLog(@"images中第%d个元素不是UIImage对象",i+1);
return;
}
}
AFHTTPRequestOperation *operation = [[self sharedOperation].operationManager POST:url parameters:parameters constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
int i = 0;
//根据当前系统时间生成图片名称
NSDate *date = [NSDate date];
NSDateFormatter *formatter = [[NSDateFormatter alloc]init];
[formatter setDateFormat:@"yyyy年MM月dd日"];
NSString *dateString = [formatter stringFromDate:date];
for (UIImage *image in images) {
NSString *fileName = [NSString stringWithFormat:@"%@%d.png",dateString,i];
NSData *imageData;
if (ratio > 0.0f && ratio < 1.0f) {
imageData = UIImageJPEGRepresentation(image, ratio);
}else{
imageData = UIImageJPEGRepresentation(image, 1.0f);
}
[formData appendPartWithFileData:imageData name:parameter fileName:fileName mimeType:@"image/jpg/png/jpeg"];
}
} success:^(AFHTTPRequestOperation *operation, id responseObject) {
succeedBlock(operation,responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(@"%@",error);
failedBlock(operation,error);
}];
[operation setUploadProgressBlock:^(NSUInteger bytesWritten, long long totalBytesWritten, long long totalBytesExpectedToWrite) {
CGFloat percent = totalBytesWritten * 1.0 / totalBytesExpectedToWrite;
uploadProgressBlock(percent,totalBytesWritten,totalBytesExpectedToWrite);
}];
}
