[.Net] 编译调试时正常，发布后无法正常运行

1 private void SetConfig()
2 {
3    try
4    {
5         Configuration config = GetConfiguration();//ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
6
7         if (config.AppSettings.Settings["dbconnect_read"] != null && config.AppSettings.Settings["dbconnect_write"] != null)
8         {
9               _dbConnectStrRead = config.AppSettings.Settings["dbconnect_read"].Value;
10               _dbConnectStrWrite = config.AppSettings.Settings["dbconnect_write"].Value;
11               _dbContext = new DBContext(_dbConnectStrRead, _dbConnectStrWrite);
12          }
13     }
14     catch (Exception ex)
15     {
16         _logger.Debug(ex.Message);
17     }
18 }
19
20 private static Configuration GetConfiguration()
21 {
22    string configFileName = string.Empty;
23
24    try
25    {
26        ExeConfigurationFileMap configFileMap = new ExeConfigurationFileMap();
27        var path = "./App.config";
28        configFileMap.ExeConfigFilename = path;
29        Configuration configObj = ConfigurationManager.OpenMappedExeConfiguration(configFileMap, ConfigurationUserLevel.None);
30
31        return configObj;
32     }
33     catch (Exception ex)
34     {
35         throw ex;
36     }
37 }