System.ComponentModel.Win32Exception (0x80004005) AWS VM IIS

Question

我正在尝试让我的 handler.ashx 页面在我们的新 AWS Windows 实例上运行，我已经安装了 IIS 以及处理程序在该实例上运行所需的一切，但是当我向处理程序传递一个值，它尝试连接到我们的 MSSQL 数据库，我抛出了这个异常。

System.ComponentModel.Win32Exception (0x80004005): The network path was not found

我不确定会出现什么问题，我在网上到处查了一下，大多数帖子都与不正确的连接字符串有关，但是我 100% 肯定我的连接字符串是正确的，因为我使用的是同一个处理程序我的个人服务器托管在 hostbuddy 上。我的本地主机上也有处理程序运行ning。

处理程序代码：

<%@ WebHandler Language="C#" Class="PassHandler" %>

using System;
using System.Web;
using System.Data.SqlClient;

public class PassHandler : IHttpHandler
{

    //www.mammothvr.com/PASSHandler/PassHandler.ashx?Key=

    public void ProcessRequest(HttpContext context)
    {
        context.Response.ContentType = "text/plain";


        //GET from UE4 PASS
        if (context.Request.HttpMethod.ToString() == "GET")
        {

            //context.Response.Write("You sent a post!");

            //get key from UE4
            string KeyFromUE4 = context.Request.QueryString["Key"];
            if (KeyFromUE4 == null)
            {
                context.Response.Write("ITS WORKING WITHOUT DB CONNECTION");
                return;
            }

            //variables for later use
            bool Validated = false;
            int timetrial = 0;
            int TrialDays = 0;

            string temp = "";

            //create reader obj
            SqlDataReader rdr = null;

            //create a connection object
            SqlConnection conn = new SqlConnection(@"DeletedConnectionStringForThisPost");

            conn.Close();
            //create a command object
            SqlCommand cmd = new SqlCommand("select * from PASSDBKEYS.dbo.Keys", conn);

            try
            {
                // open the connection
                conn.Open();
                     temp += " opened the connection";
                // 1. get an instance of the SqlDataReader
                rdr = cmd.ExecuteReader();
                    temp += " executed reader";
                //while connection is reading rows
                while (rdr.Read())
                {
                    // get the results of each column
                    string Key = (string)rdr["PassKey"];
                    bool used = (bool)rdr["Used"];
                    bool Valid = (bool)rdr["Valid"];
                    bool IsTrial = (bool)rdr["IsTrialKey"];

                    temp += Key;

                    //check to see if key is used and if it is valid
                    if (Key == KeyFromUE4)
                    {
                        if (Valid == true)
                        {

                            if (IsTrial == true)
                            {
                                //check time left on trial
                                TrialDays = Convert.ToInt32(rdr["TrialDays"]);
                                DateTime DateActivated = (DateTime)rdr["DateActivated"];
                                timetrial = DateTime.Now.DayOfYear - DateActivated.DayOfYear;

                                if (TrialDays < timetrial) //if time is up on trial, set not valid anymore
                                {
                                    Validated = false;
                                    rdr.Close();

                                    //new SqlCommand(" UPDATE Account  SET name = Aleesha, CID = 24 Where name =Areeba and CID =11 )";
                                    SqlCommand CMD = new SqlCommand("Update PASSDBKEYS.dbo.Keys SET Valid = 0 WHERE PassKey = @PassKey;", conn);
                                    CMD.Parameters.Add(new SqlParameter("@PassKey", KeyFromUE4));
                                    CMD.ExecuteNonQuery();
                                    break;
                                }

                            }
                            else  //not a trial account
                            {
                                Validated = true;
                                break;
                            }

                        }
                        else  //key not valid anymore
                        {
                            Validated = false;
                        }


                    }
                    else if (Key != KeyFromUE4) //not a valid key
                    {
                        Validated = false;
                    }

                }
            }
            //catch exception
            catch (SqlException ex)
            {

temp +=  ex.InnerException;
                //rdr.Close();
                conn.Close();
            }
            finally
            {
                //close the reader if it is done rading
                if (rdr != null)
                {
                    //close the reader
                    rdr.Close();
                    conn.Close();
                }
                else
                {
                    //rdr.Close();
                    conn.Close();
                }
            }

            //Send message back to UE4
            if (Validated == true)
            {
                context.Response.Write("1");
            }
            else
            {
                context.Response.Write("Tried to read" +temp);
            }


        }
    }

    public bool IsReusable
    {
        get
        {
            return false;
        }
    }

}

如果我只是运行 AWS 实例上的处理程序，没有关键参数，一切都很好，因为在这种情况下我没有连接到我的数据库，但是当我传递参数时是我收到错误的时候（因为只有那时脚本才应该连接到数据库）

任何帮助都会很棒，我在这里慢慢开始失去理智，已经花了几个小时无济于事。

Answer 1

弄清楚了，我不得不更改允许访问数据库的 IP 的传入设置。

如果以后有人遇到这个问题，请检查您的数据库实例传入端口和 IP 设置！！！

System.ComponentModel.Win32Exception (0x80004005) AWS VM IIS

System.ComponentModel.Win32Exception (0x80004005) AWS VM IIS

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