什么方法可以用post向网络传递多个参数

Question

如题，最好有代码谢谢

Answer 1

  NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];  
  [request setHTTPMethod:@"POST"];  
  [request setValue:[NSString stringWithFormat:@"%d", postData.length] forHTTPHeaderField:@"Content-Length"];  
  [request setValue:@"application/x-www-form-urlencoded charset=utf-8" forHTTPHeaderField:@"Content-Type"];  
  [request setHTTPBody:postData];  
  
  NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request   
                                                                delegate:self];  

Answer 2

[request setValue:[NSString stringWithFormat:@"%d", postData.length] forHTTPHeaderField:@"Content-Length"];  这一句有什么用？好像不加也行

Answer 3

NSURL *url = [NSURL URLWithString:@"http://xx.ss.ss.ss/"];
    //ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
    ASIFormDataRequest *request=[ASIFormDataRequest requestWithURL:url];
    [request setPostValue:appraiseTextField.text forKey:@"app"];
    [request setPostValue:numberTextField.text   forKey:@"count"];
    [request setPostValue:goodsTextField.text    forKey:@"name"];
    [request setPostValue:priceTextField.text    forKey:@"price"];