将数据发布到服务器和响应是：{" Message"：“发生了错误。”} [英] Posting data to server and response is :{"Message":"An error has occurred."}

问题描述

我尝试了很多方法将数据发布到服务器，但没有一种方法可以工作，只有响应才是：

I have tried many methods of posting data to server but none of them worked and only response am getting is:

{消息：发生了错误。}

{"Message":"An error has occurred."}

以下是我最近尝试过的方法。

Below is the method I've tried recently.

NSString *cust_id=@"2";
NSString *Prod_ID=@"18";
NSString *Vend_ID=@"1";
NSString *Quant=@"2";
NSString *post =[NSString stringWithFormat:@"customerid=%@&productid=%@&vendorid=%@&quantity=%@",cust_id,Prod_ID,Vend_ID,Quant];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSURL *url = [NSURL URLWithString:@"http://dealnxt.com/api/addtocart"];
NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url];
[theRequest setHTTPMethod:@"POST"];
[theRequest setHTTPBody:postData];
NSURLResponse *response;
NSError *error;
NSData *urlData=[NSURLConnection sendSynchronousRequest:theRequest returningResponse:&response error:&error];
NSString *str=[[NSString alloc]initWithData:urlData encoding:NSUTF8StringEncoding];
NSLog(@"str:%@",str);

推荐答案

谢谢@ Tj3N，您的回答很有帮助。

Thank You @Tj3N, your answer was helpful.

只需更改编码类型即可。从NSASCIIStringEncoding到NSUTF8StringEncoding。
以下是更新后的代码。

Just needed to change encoding type. From NSASCIIStringEncoding to NSUTF8StringEncoding. Below is the Updated code.

NSString *post =[NSString stringWithFormat:@"customerid=%@&productid=%@&vendorid=%@&quantity=%@",cid,PID,VID,QQ];
NSData *postData = [post dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:YES];
NSURL *url = [NSURL URLWithString:@"URL"];
NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url];
[theRequest setHTTPMethod:@"POST"];
[theRequest setHTTPBody:postData];
NSURLResponse *response;
NSError *error;
NSData *urlData=[NSURLConnection sendSynchronousRequest:theRequest returningResponse:&response error:&error];
NSString *str=[[NSString alloc]initWithData:urlData encoding:NSUTF8StringEncoding];
NSLog(@"str:%@",str);

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