我的Web服务运行正常。当文件大于2MB时，它将在System.Private.CoreLib.dll中引发System.AggregateException。
你能给我一些建议吗？
以下是例外：
引发的异常：System.Private.CoreLib.dll中的“ System.AggregateException” System.Private.CoreLib.dll中发生了类型为'System.AggregateException'的未处理异常 发生一个或多个错误。
System.AggregateException HResult = 0x80131500 Message =发生一个或多个错误。 （由于内部错误，服务器无法处理请求。有关该错误的更多信息，请打开服务器上的IncludeExceptionDetailInFaults（来自ServiceBehaviorAttribute或来自配置行为），以便将异常信息发送回客户端。 ，或按照Microsoft .NET Framework SDK文档打开跟踪并检查服务器跟踪日志。） 来源= System.Private.CoreLib 堆栈跟踪： 在System.Threading.Tasks.Task.Wait（Int32毫秒超时，CancellationToken cancelToken） 在System.Threading.Tasks.Task.Wait（） 在C：\ Users \ Qihong.Kuang \ source \ repos \ WebService \ sharepoint \ Program.cs：line 11中的sharepoint.Program.Main（String [] args）中
内部异常1： FaultException：服务器由于内部错误而无法处理请求。有关错误的更多信息，请打开服务器上的IncludeExceptionDetailInFaults（从ServiceBehaviorAttribute或从配置行为），以便将异常信息发送回客户端，或者按照Microsoft .NET Framework SDK文档和检查服务器跟踪日志。
static void Main(string[] args)
{
Console.WriteLine("Uploading...");
ServiceReference1.ServiceClient ws = new ServiceReference1.ServiceClient();
//something happened in this Async task;
ws.start_processAsync().Wait();
Console.WriteLine("Upload Finished!");
}
public class Service : IService
{
public string GetData(int value)
{
return string.Format("You entered: {0}", value);
}
public CompositeType GetDataUsingDataContract(CompositeType composite)
{
if (composite == null)
{
throw new ArgumentNullException("composite");
}
if (composite.BoolValue)
{
composite.StringValue += "Suffix";
}
return composite;
}
public void start_process()
{
WebService ws = new WebService();
ws.GetCredentials();
}
}
public class WebService : System.Web.Services.WebService
{
OracleConnection con;
List<int> file_ids = new List<int>();
int file_id2;
string queryString;
OracleCommand cmd;
OracleDataReader dtr;
byte[] g_file = new byte[0];
string file_name;
ClientContext ctx;
public WebService()
{
//Uncomment the following line if using designed components
//InitializeComponent();
}
public void StartProcess()
{
var startTimeSpan = TimeSpan.Zero;
var periodTimeSpan = TimeSpan.FromSeconds(30);
var timer = new System.Threading.Timer((e) =>
{
GetCredentials();
}, null, startTimeSpan, periodTimeSpan);
}
public void GetCredentials()
{
var siteUrl = "siteURL";
var user = "USER";
var password = "PASSWORD";
var pwd = new SecureString();
string docLib = "testtest";
foreach (var c in password) pwd.AppendChar(c);
var SPOCredentials = new SharePointOnlineCredentials(user, pwd);
var SPCredentials = new NetworkCredential(user, pwd);
string subfolderPath = GetSubFolder();
file_ids = GetFileID();
//string uploadLocation = GetFileName();
foreach (var file_id in file_ids)
{
file_id2 = file_id;
ExecuteType("file_name");
string uploadLocation = file_name;
using (ctx = new ClientContext(siteUrl))
{
try
{
ctx.Credentials = SPOCredentials;
ctx.ExecuteQuery();
}
catch (ClientRequestException)
{
ctx.Credentials = SPCredentials;
ctx.ExecuteQuery();
}
catch (NotSupportedException)
{
ctx.Credentials = SPCredentials;
ctx.ExecuteQuery();
Console.WriteLine("SharePoint On-Premise");
}
var library = ctx.Web.Lists.GetByTitle(docLib);
var fileBytes = new byte[] { };
//fileBytes = ReadData();
ExecuteType("blob");
FileStream fileStream;
fileBytes = g_file;
//fileStream = new FileStream(g_file, FileMode.Open);
var fileCreationInformation = new FileCreationInformation();
uploadLocation = string.Format("{0}/{1}", subfolderPath, uploadLocation);
uploadLocation = string.Format("{0}/{1}/{2}", siteUrl, docLib, uploadLocation);
fileCreationInformation.Content = fileBytes;
fileCreationInformation.Overwrite = true;
fileCreationInformation.Url = uploadLocation;
//Upload the file to root folder of the Document library
library.RootFolder.Files.Add(fileCreationInformation);
ctx.ExecuteQuery();
DeleteRecordAfterUploadToSharePoint();
}
}
}
public void ExecuteType(string executeType)
{
con = new OracleConnection(GetConnectionString());
queryString = GetQueryString();
try
{
con.Open();
OracleCommand cmd = new OracleCommand(queryString, con);
dtr = cmd.ExecuteReader();
while (dtr.Read())
{
if (executeType == "file_name")
{
file_name = Convert.ToString(dtr["file_name"]);
}
else if (executeType == "blob")
{
g_file = (byte[])dtr["actual_file"];
}
}
}
catch (Exception ex)
{
string showError = "Error: " + ex.Message;
}
finally
{
dtr.Close();
con.Close();
}
}
public void DeleteRecordAfterUploadToSharePoint()
{
con = new OracleConnection(GetConnectionString());
string queryString = GetDeleteQueryString();
try
{
con.Open();
cmd = new OracleCommand(queryString, con);
cmd.ExecuteNonQuery();
}
catch (Exception ex)
{
string showError = "Error: " + ex.Message;
}
finally
{
con.Close();
}
}
public List<int> GetFileID()
{
con = new OracleConnection(GetConnectionString());
string queryString = "select count(file_id), file_id from nfirs.sharepoint_file group by file_id";
OracleDataReader dtr = null;
try
{
con.Open();
OracleCommand cmd = new OracleCommand(queryString, con);
dtr = cmd.ExecuteReader();
while (dtr.Read())
{
file_ids.Add(Convert.ToInt32(dtr["file_id"]));
}
}
catch (Exception ex)
{
string showError = "Error: " + ex.Message;
}
finally
{
dtr.Close();
con.Close();
}
Console.WriteLine(file_ids);
return file_ids;
}
public int GetIndividualFileID()
{
return file_id2;
}
public string GetSubFolder()
{
DateTime dt = Convert.ToDateTime(DateTime.Now);
string year = dt.Year.ToString();
return year;
}
public string GetConnectionString()
{
return "Data Source=(DESCRIPTION =(connectionStringhere)";
}
public string GetQueryString()
{
return "select file_id, file_type, actual_file, file_name, file_mimetype, file_update_dttm, file_charset from nfirs.Sharepoint_File where file_id = " + GetIndividualFileID();
}
public string GetDeleteQueryString()
{
string deleteQuery = "delete from (" + GetQueryString() + ")";
return deleteQuery;
}
public string GetFileName()
{
con = new OracleConnection(GetConnectionString());
queryString = GetQueryString();
//OracleDataReader dtr = null;
//string file_name = "";
try
{
con.Open();
OracleCommand cmd = new OracleCommand(queryString, con);
dtr = cmd.ExecuteReader();
while (dtr.Read())
{
file_name = Convert.ToString(dtr["file_name"]);
}
}
catch (Exception ex)
{
string showError = "Error: " + ex.Message;
}
finally
{
dtr.Close();
con.Close();
}
return file_name;
}
public byte[] ReadData()
{
//OracleConnection con = new OracleConnection(GetConnectionString());
//List<int> file_ids = GetFileID();
//foreach(var file_id in file_ids)
//{
//}
string queryString = GetQueryString();
//OracleDataReader dtr = null;
//byte[] g_file = new byte[0];
try
{
con.Open();
cmd = new OracleCommand(queryString, con);
dtr = cmd.ExecuteReader();
while (dtr.Read())
{
g_file = (byte[])dtr["actual_file"];
}
}
catch (Exception ex)
{
string showError = "Error: " + ex.Message;
}
finally
{
dtr.Close();
con.Close();
}
return g_file;
}
}
答案 0 :(得分：0)
使用memorystream代替使用byte []