我有一个try,catch和finally块的函数.如果捕获到异常,那么我会捕获该异常的某些参数,例如其错误代码,错误详细消息和消息,并将其打印在excel文件中.我发布以下相关代码：
public void UpdateGroup(String strSiteID,String strGroup,int row)
{
try
{
Console.WriteLine("UpdateGroup");
Excel1.MWMClient.MWMServiceProxy.Group group = new Excel1.MWMClient.MWMServiceProxy.Group();
group.name = "plumber";
group.description = "he is a plumber";
Console.WriteLine(groupClient.UpdateGroup(strSiteID,group));
ExcelRecorder(0,null,row);
}
catch (System.ServiceModel.FaultException<DefaultFaultContract> ex)
{
ExcelRecorder(ex.Detail.ErrorCode,ex.Detail.Message,ex.Message,row);
}
finally
{
System.GC.Collect();
}
}
public void ExcelRecorder(int error,string detailmessage,string message,int row)
{
Excel.Application xlApp = new Excel.Application();
Excel.Workbook xlWorkbook = xlApp.Workbooks.Open(@"D:/WebServiceTestCases_Output.xlsx");
Excel._Worksheet xlWorksheet = xlWorkbook.Sheets[1];
Excel.Range xlRange = xlWorksheet.UsedRange;
if (!string.IsNullOrEmpty(message))
{
((Range)xlWorksheet.Cells[row,"M"]).Value2 = "FAIL";
((Range)xlWorksheet.Cells[row,"N"]).Value2 = error;
((Range)xlWorksheet.Cells[row,"O"]).Value2 = detailmessage;
((Range)xlWorksheet.Cells[row,"P"]).Value2 = message;
}
else
{
((Range)xlWorksheet.Cells[row,"M"]).Value2 = "PASS";
((Range)xlWorksheet.Cells[row,"N"]).Value2 = "";
((Range)xlWorksheet.Cells[row,"O"]).Value2 = "";
((Range)xlWorksheet.Cells[row,"P"]).Value2 = "";
}
xlWorkbook.Save();
xlWorkbook.Close(0,0);
xlApp.Quit();
}
问题是,早些时候我有一段代码就像
catch(Exception ex)
{
ExcelRecorder(ex.Message);
}
那时,所有例外都被抓住了.但是,后来需求发生了变化,因为我还需要捕获错误详细信息代码和错误详细信息.所以,我用catch(System.ServiceModel.FaultException ex)改变了我的catch块,因为它允许我获取那些参数.但是现在,某些例外情况并没有被捕获.如何更改我的catch块以便能够捕获所有异常？
解决方法
基本上有两种方式：
1：两个捕获块(最具体的第一个)：
catch (System.ServiceModel.FaultException<DefaultFaultContract> ex)
{
ExcelRecorder(ex.Detail.ErrorCode,row);
}
catch (Exception ex)
{
// TODO: simpler error handler
}
2：一个带有测试的catch块：
catch (Exception ex)
{
var fault = ex as System.ServiceModel.FaultException<DefaultFaultContract>;
if(fault != null)
{
ExcelRecorder(fault.Detail.ErrorCode,fault.Detail.Message,fault.Message,row);
}
// TODO: common error handling steps
}
要么可以工作.第一个可能更干净,但是如果你想在捕获物内部做很多常见的事情,第二个可能有优势.
