IBM Worklight - 使用 IP 地址而不是 localhost 时无法连接到数据库

Question

我目前正在创建一个 Worklight 应用程序，该应用程序从我计算机的 MySQL 数据库中检索一些数据。

当我尝试运行应用程序时，它无法连接到数据库。当我将数据库的 URL 更改为 IP 地址（192.168.6.1（我的计算机的本地主机））时，就会发生错误。

当我通过调用 worklight 过程（地址是 localhost）从我的计算机上对其进行测试时，它工作正常，但是当我将 URL 更改为 IP 地址时，它显示错误：

[ERROR   ] FWLSE0012E: ERROR: Could not connect to database. Cannot create PoolableConnectionFactory (null,  message from server: "Host 'stephen-PC' is not allowed to connect to this MySQL server"). [project BarcodeScannerSample]
[ERROR   ] FWLSE0012E: ERROR: Could not connect to database. Cannot create PoolableConnectionFactory (null,  message from server: "Host 'stephen-PC' is not allowed to connect to this MySQL server"). [project BarcodeScannerSample]
[ERROR   ] FWLSE0012E: ERROR: Could not connect to database. Cannot create PoolableConnectionFactory (null,  message from server: "Host 'stephen-PC' is not allowed to connect to this MySQL server"). [project BarcodeScannerSample]
[ERROR   ] FWLSE0012E: ERROR: Could not connect to database. Cannot create PoolableConnectionFactory (Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.). [project BarcodeScannerSample]
[ERROR   ] FWLSE0012E: ERROR: Could not connect to database. Cannot create PoolableConnectionFactory (Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.). [project BarcodeScannerSample]
[ERROR   ] FWLSE0020E: Ajax request exception: There is no application in the DB with the id 'BarcodeScannerSampleApp'. [project BarcodeScannerSample]
[ERROR   ] FWLSE0117E: Error code: 1, error description: INTERNAL_ERROR, error message: FWLSE0069E: An internal error occurred during gadget request  [project BarcodeScannerSample]There is no application in the DB with the id 'BarcodeScannerSampleApp'., User Identity {SubscribeServlet=null, wl_authenticityRealm=null, wl_remoteDisableRealm=null, SampleAppRealm=null, wl_antiXSRFRealm=null, wl_deviceAutoProvisioningRealm=null, WorklightConsole=null, wl_deviceNoProvisioningRealm=null, wl_anonymousUserRealm=null}. [project BarcodeScannerSample] 
                                                                                                               com.worklight.common.log.filters.ErrorFilter
[ERROR   ] FWLSE0012E: ERROR: Could not connect to database. Cannot create PoolableConnectionFactory (null,  message from server: "Host 'stephen-PC' is not allowed to connect to this MySQL server"). [project BarcodeScannerSample]
[ERROR   ] FWLSE0020E: Ajax request exception: There is no application in the DB with the id 'BarcodeScannerSampleApp'. [project BarcodeScannerSample]
[ERROR   ] FWLSE0117E: Error code: 1, error description: INTERNAL_ERROR, error message: FWLSE0069E: An internal error occurred during gadget request  [project BarcodeScannerSample]There is no application in the DB with the id 'BarcodeScannerSampleApp'., User Identity {SubscribeServlet=null, wl_authenticityRealm=null, wl_remoteDisableRealm=null, SampleAppRealm=null, wl_antiXSRFRealm=null, wl_deviceAutoProvisioningRealm=null, WorklightConsole=null, wl_deviceNoProvisioningRealm=null, wl_anonymousUserRealm=null}. [project BarcodeScannerSample] 
                                                                                                               com.worklight.common.log.filters.ErrorFilter
[ERROR   ] FWLSE0020E: Ajax request exception: There is no application in the DB with the id 'BarcodeScannerSampleApp'. [project BarcodeScannerSample]
[ERROR   ] FWLSE0117E: Error code: 1, error description: INTERNAL_ERROR, error message: FWLSE0069E: An internal error occurred during gadget request  [project BarcodeScannerSample]There is no application in the DB with the id 'BarcodeScannerSampleApp'., User Identity {SubscribeServlet=null, wl_authenticityRealm=null, wl_remoteDisableRealm=null, SampleAppRealm=null, wl_antiXSRFRealm=null, wl_deviceAutoProvisioningRealm=null, WorklightConsole=null, wl_deviceNoProvisioningRealm=null, wl_anonymousUserRealm=null}. [project BarcodeScannerSample] 
                                                                                                               com.worklight.common.log.filters.ErrorFilter
[ERROR   ] FWLSE0020E: Ajax request exception: There is no application in the DB with the id 'BarcodeScannerSampleApp'. [project BarcodeScannerSample]
[ERROR   ] FWLSE0117E: Error code: 1, error description: INTERNAL_ERROR, error message: FWLSE0069E: An internal error occurred during gadget request  [project BarcodeScannerSample]There is no application in the DB with the id 'BarcodeScannerSampleApp'., User Identity {SubscribeServlet=null, wl_authenticityRealm=null, wl_remoteDisableRealm=null, SampleAppRealm=null, wl_antiXSRFRealm=null, wl_deviceAutoProvisioningRealm=null, WorklightConsole=null, wl_deviceNoProvisioningRealm=null, wl_anonymousUserRealm=null}. [project BarcodeScannerSample] 
                                                                                                               com.worklight.common.log.filters.ErrorFilter
[ERROR   ] FWLSE0020E: Ajax request exception: There is no application in the DB with the id 'BarcodeScannerSampleApp'. [project BarcodeScannerSample]
[ERROR   ] FWLSE0117E: Error code: 1, error description: INTERNAL_ERROR, error message: FWLSE0069E: An internal error occurred during gadget request  [project BarcodeScannerSample]There is no application in the DB with the id 'BarcodeScannerSampleApp'., User Identity {SubscribeServlet=null, wl_authenticityRealm=null, wl_remoteDisableRealm=null, SampleAppRealm=null, wl_antiXSRFRealm=null, wl_deviceAutoProvisioningRealm=null, WorklightConsole=null, wl_deviceNoProvisioningRealm=null, wl_anonymousUserRealm=null}. [project BarcodeScannerSample] 
                                                                                                               com.worklight.common.log.filters.ErrorFilter
[WARNING ] FWLSE0082W: Failed to deploy adapter. This may be due to a JavaScript error in your adapter implementation (archive:  'C:\Users\stephen\AppData\Local\Temp\loginAdapter7158962596204999276.adapter'). [project mywatermelon]
The 'adapter' version '6.1.0.00.20131219-1900' is different than the version of Worklight Server '6.0.0'. 
Use Worklight Studio '6.0.0' to build and deploy the application.
[WARNING ] FWLSE0082W: Failed to deploy adapter. This may be due to a JavaScript error in your adapter implementation (archive:  'C:\Users\stephen\AppData\Local\Temp\myRESTAdapter36508485292314915.adapter'). [project mywatermelon]
The 'adapter' version '6.1.0.00.20131219-1900' is different than the version of Worklight Server '6.0.0'. 
Use Worklight Studio '6.0.0' to build and deploy the application.
[ERROR   ] FWLSE0012E: ERROR: Could not connect to database. Cannot create PoolableConnectionFactory (null,  message from server: "Host 'stephen-PC' is not allowed to connect to this MySQL server"). [project BarcodeScannerSample]

以下是适配器 XML 的连接设置：

<?xml version="1.0" encoding="UTF-8"?>
...
...
  <connectivity>
    <connectionPolicy xsi:type="sql:SQLConnectionPolicy">
      <!-- Example for using a JNDI data source, replace with actual data source name -->
      <!-- <dataSourceJNDIName>java:/data-source-jndi-name</dataSourceJNDIName> -->

      <!-- Example for using MySQL connector, do not forget to put the MySQL connector library in the project's lib folder -->
      <dataSourceDefinition>
        <driverClass>com.mysql.jdbc.Driver</driverClass>
        <url>jdbc:mysql://192.168.6.1:3306/barcode</url>
          <user>root</user>
          <password>170693</password> 
      </dataSourceDefinition>
    </connectionPolicy>
    <loadConstraints maxConcurrentConnectionsPerNode="5" />
  </connectivity>
  ...
  ...
</wl:adapter>

Answer 1

我不知道您使用的是哪个数据库前端，但您需要转到用户创建/权限屏幕并确保您已授予用户“root”权限以连接到 localhost 和%（全部），这样 IP 地址也会被接受。

例如：root@% 而不是/除了root@localhost。

这是提到in slide #14 of the SQL adapter training module。

顺便说一句，您可以将其保留为 localhost 而不是 IP 地址（只要您在本地网络中进行测试）。对设备来说应该没关系。你试过了吗？