socket上传图片的处理方法

//HTTP协议相关代码

[[NetManager sharedManager] sendPictureWithusername:name  msgtype:msgtype  files:path  hudDic:nil success:^(id responseDic) {
        
        NSString *fileID=[[responseDic objectForKey:@"data"]objectForKey:@"fileid"];
        /*
        responseDic----{
            data =     {
                fileid = 7203;
            };
            msg = ok;
            status = 0;
        }
         */
        
   
        //socket 提交服务器

       //要传到服务器的参数
        NSDictionary* jsonDic = [NSDictionary dictionaryWithObjectsAndKeys:fileID,@"fileID",@"picture",@"type",nil];
       
       //将字典转化为json字符串
       NSString *jsonString=[jsonDic JSONString];
       
       //将字符串变为流。
       NSData *data = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
       
      //将流传到服务器。
       [chatSocket writeData:data withTimeout:-1 tag:300];
        
    } fail:^(id errorString) {
        NSLog(@"上传服务器失败“);
    }];