/// <summary>
/// 设置调用参数并调用API
/// </summary>
/// <param name="paramsTable"></param>
/// <returns></returns>
public static string InvokeAPI(TopDictionary paramsTable, APIInvokeType invokeType)
{
#region 获取SessionKey
string url = string.Empty;
APIType apiType = APIType.Real;
if (apiType == APIType.Real)
{
url = Constants.TOP_API_URL;
}
else
{
url = Constants.TOP_SANDBOX_API_URL;
}
#endregion
#region 设置API调用系统级参数
string resBody = string.Empty;
Dictionary <string, string> req_params = new Dictionary <string, string>();
req_params.Add("format", "json");
req_params.Add("timestamp", DateTime.Now.ToString(Constants.DATE_TIME_FORMAT));
req_params.Add("app_key", Constants.APP_KEY);
req_params.Add("sign_method", "md5");
req_params.Add("v", "2.0");
#endregion
#region 添加调用方法和参数
IDictionaryEnumerator enumerator = paramsTable.GetEnumerator();
while (enumerator.MoveNext())
{
req_params.Add(enumerator.Key.ToString(), enumerator.Value.ToString());
}
#endregion
#region 方法签名
string sign = EncryptUtil.Signature(req_params, Constants.APP_SECRET);
req_params.Add("sign", sign);
#endregion
#region 判定调用图片API或者普通API
TopJsonRestClient client = new TopJsonRestClient();
string apiname = req_params.Where(m => m.Key == "method").First().Value;
if (apiname == "taobao.item.img.upload" || apiname == "taobao.item.propimg.upload")
{
Byte[] picBytes = paramsTable.PictureBytes;
resBody = client.InvokUpImageAPI(picBytes, req_params, url);
}
else
{
resBody = client.InvokeAPI(req_params, url);
}
#endregion
#region API异常处理
if (resBody.Contains("error_response") || resBody.Contains("error_rsp"))
{
if (resBody.Contains("?xml"))
{
return(string.Empty);
}
int startIndex = resBody.IndexOf(":") + 1;
/*截掉首尾的{}，截取长度修改为resBody.LastIndexOf('}') - startIndex，不用resBody.Length,有可能统计不准*/
int length = resBody.LastIndexOf('}') - startIndex;
resBody = resBody.Substring(startIndex, length);
TopException exception = DeserializeObject <TopException>(resBody);
throw new Exception(string.Format("错误代码：{0}，错误信息：{1}，错误子代码：{2}，错误子信息：{3}", exception.Code, exception.Msg, exception.SubCode, exception.SubMsg));
}
#endregion
#region 获得API调用结果
if (!string.IsNullOrEmpty(resBody))
{
int startIndex = resBody.IndexOf(":") + 1;
/*截掉首尾的{}，截取长度修改为resBody.LastIndexOf('}') - startIndex，不用resBody.Length,有可能统计不准*/
resBody = resBody.Substring(startIndex, resBody.LastIndexOf('}') - startIndex);
}
#endregion
return(resBody);
}