- (NSMutableURLRequest *)PostImageRequest:(NSString *)URLString
                                  UIImage:(UIImage*)image
                               parameters:(NSDictionary *)parameters
                                  success:(void (^)(id))success
                                  failure:(void (^)(NSError *))failure
{
    _success = [success copy];
    _failure = [failure copy];
    //分界線(xiàn)的標(biāo)識(shí)符
    NSString *TWITTERFON_FORM_BOUNDARY = @"AaB03x";
    //根據(jù)url初始化request
    _request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:URLString]
                                                           cachePolicy:NSURLRequestReloadIgnoringLocalCacheData
                                                       timeoutInterval:10];
    //分界線(xiàn) --AaB03x
    NSString *MPboundary=[[NSString alloc]initWithFormat:@"--%@",TWITTERFON_FORM_BOUNDARY];
    //結(jié)束符 AaB03x--
    NSString *endMPboundary=[[NSString alloc]initWithFormat:@"%@--",MPboundary];
    //得到圖片的data
    NSData* data = UIImageJPEGRepresentation(image, 1);
    //http body的字符串
    NSMutableString *body=[[NSMutableString alloc]init];
    //參數(shù)的集合的所有key的集合
    NSArray *keys= [parameters allKeys];
 
    //遍歷keys
    for(int i=0;i<[keys count];i++)
    {
        //得到當(dāng)前key
        NSString *key=[keys objectAtIndex:i];
        //如果key不是pic，說(shuō)明value是字符類(lèi)型，比如name：Boris
        if(![key isEqualToString:@"pic"])
        {
            //添加分界線(xiàn)，換行
            [body appendFormat:@"%@\r\n",MPboundary];
            //添加字段名稱(chēng)，換2行
            [body appendFormat:@"Content-Disposition: form-data; name=\"%@\"\r\n\r\n",key];
            //添加字段的值
            [body appendFormat:@"%@\r\n",[parameters objectForKey:key]];
        }
    }
 
    ////添加分界線(xiàn)，換行
    [body appendFormat:@"%@\r\n",MPboundary];
    //聲明pic字段，文件名為boris.png
    [body appendFormat:@"Content-Disposition: form-data; name=\"ImageField\"; filename=\"x1234.png\"\r\n"];
    //聲明上傳文件的格式
    [body appendFormat:@"Content-Type: image/jpeg\r\n\r\n"];
 
    //聲明結(jié)束符：--AaB03x--
    NSString *end=[[NSString alloc]initWithFormat:@"\r\n%@",endMPboundary];
    //聲明myRequestData，用來(lái)放入http body
    NSMutableData *myRequestData=[NSMutableData data];
    //將body字符串轉(zhuǎn)化為UTF8格式的二進(jìn)制
    [myRequestData appendData:[body dataUsingEncoding:NSUTF8StringEncoding]];
    //將image的data加入
    [myRequestData appendData:data];
    //加入結(jié)束符--AaB03x--
    [myRequestData appendData:[end dataUsingEncoding:NSUTF8StringEncoding]];
 
    //設(shè)置HTTPHeader中Content-Type的值
    NSString *content=[[NSString alloc] initWithFormat:@"multipart/form-data; boundary=%@",TWITTERFON_FORM_BOUNDARY];
    //設(shè)置HTTPHeader
    [_request setValue:content forHTTPHeaderField:@"Content-Type"];
    //設(shè)置Content-Length
    [_request setValue:[NSString stringWithFormat:@"%d", [myRequestData length]] forHTTPHeaderField:@"Content-Length"];
    //設(shè)置http body
    [_request setHTTPBody:myRequestData];
    //http method
    [_request setHTTPMethod:@"POST"];
     
    return _request;
}

標(biāo)簽： isp

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