1. - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
  2. {
  3. // 1.URL
  4. NSURL *url = [NSURL URLWithString:@"http://localhost:8080/MJServer/order"];
  6. // 2.请求
  7. NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
  9. // 3.请求方法
  10. request.HTTPMethod = @"POST";
  12. // 4.设置请求体（请求参数）
  13. // 创建一个描述订单信息的JSON数据
  14. NSDictionary *orderInfo = @{
  15. @"shop_id" : @"1243324",
  16. @"shop_name" : @"啊哈哈哈",
  17. @"user_id" : @"899"
  18. };
  19. //把字典转换为可以传输的NSData类型
  20. NSData *json = [NSJSONSerialization dataWithJSONObject:orderInfo options:NSJSONWritingPrettyPrinted error:nil];
  21. request.HTTPBody = json;
  23. // 5.设置请求头：这次请求体的数据不再是普通的参数，而是一个JSON数据
  24. [request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
  26. // 6.发送请求
  27. [NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {
  28. if (data == nil || connectionError) return;
  29. NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableLeaves error:nil];
  30. NSString *error = dict[@"error"];
  31. if (error) {
  32. [MBProgressHUD showError:error];
  33. } else {
  34. NSString *success = dict[@"success"];
  35. [MBProgressHUD showSuccess:success];
  36. }
  37. }];
  39. }