[英]Is This Overkill to Retrieve an Int from a Web API REST call?
該代碼有效,但可能僅與112歲的酒精飲料一樣有表現:
try
{
const string uri = "http://localhost:28642/api/departments/Count";
var webRequest = (HttpWebRequest)WebRequest.Create(uri);
webRequest.Method = "GET";
var webResponse = (HttpWebResponse)webRequest.GetResponse();
if ((webResponse.StatusCode == HttpStatusCode.OK) && (webResponse.ContentLength > 0))
{
var reader = new StreamReader(webResponse.GetResponseStream());
string s = reader.ReadToEnd();
MessageBox.Show(string.Format("Content from HttpWebRequest is {0}", s));
}
else
{
MessageBox.Show(string.Format("Status code == {0}", webResponse.StatusCode));
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
調用的Web API REST方法僅返回一個int。 StreamReader爵士樂是為了獲得一個簡單的價值而矯kill過正? 如果是這樣,首選的方法是什么?
喬恩·斯凱特(Jon Skeet)就是案例-WebClient.DownloadString很容易(吃)餡餅:
var client = new WebClient();
MessageBox.Show(client.DownloadString("http://localhost:28642/api/departments/Count"));
IOW,我最初顯示的代碼對於檢索標量值肯定是過大的。
更好的是:
private void buttonGetDeptCount2_Click(object sender, EventArgs e)
{
MessageBox.Show(GetScalarVal("http://localhost:28642/api/departments/Count"));
}
private string GetScalarVal(string uri)
{
var client = new WebClient();
return client.DownloadString(uri);
}
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