一個已經寫好的項目中有多個WebService,由於之前沒有記錄請求信息的,有時候需要查錯等需要找到當次的請求信息,所以需要加入記錄請求信息的功能。
首先想到的是在每一個帶有WebMethod特性的方法里調用記錄請求信息的方法,這樣可以記錄信息,但是太多帶WebMethod特性的方法了,於是想在全局中攔截並捕獲,於是想到了Global.asax

public class Global : System.Web.HttpApplication { protected void Application_Start(object sender, EventArgs e) { } protected void Session_Start(object sender, EventArgs e) { } protected void Application_BeginRequest(object sender, EventArgs e) { if (Request != null) { try { if (".asmx".Equals(Request.CurrentExecutionFilePathExtension,StringComparison.OrdinalIgnoreCase) && Request.ContentLength > 0) { using (MemoryStream ms = new MemoryStream()) { Request.InputStream.CopyTo(ms); ms.Position = 0; using (StreamReader reader = new StreamReader(ms)) { LogHelper.Info(reader.ReadToEnd()); } } } } catch (Exception) { } finally { Request.InputStream.Position = 0; } } } protected void Application_AuthenticateRequest(object sender, EventArgs e) { } protected void Application_Error(object sender, EventArgs e) { } protected void Session_End(object sender, EventArgs e) { } protected void Application_End(object sender, EventArgs e) { } }

[WebMethod] public string HelloWorld() { return "Hello World"; } [WebMethod] public string QueryBalance(string username,string password) { if (username == "test" && password == "abcd") { return "1000000"; } else { return "用戶名或密碼錯誤"; } }
這里使用了Log4Net將請求信息記錄起來
另一種調用方式是在另一個項目中添加了WerService的引用,

public partial class WebForm1 : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { TestWebServiceSoapClient client = new TestWebServiceSoapClient(); Response.Write(client.QueryBalance("test","abcd")); } }