Question

我正在尝试连接外部MySQL服务器的OpenShift站点。下面是我到目前为止的代码。

public class BaseDAO {
static final String DB_DRIVER = "com.mysql.jdbc.Driver";
DataSource datasource;


public BaseDAO() {
    System.out.println("+++++ " +Calendar.getInstance().getTime());
    try{
        InitialContext ic = new InitialContext();
        Context initialContext = (Context) ic.lookup("java:comp/env");
        datasource = (DataSource) initialContext.lookup("jdbc/MySQLDS");
        Class.forName(DB_DRIVER).newInstance();
    } catch(Exception e){
        e.printStackTrace();
        throw new RuntimeException(e.getCause());
    }
  }
}

我所有的DAO课程都扩展了BaseDAO，因此我不必输入所有这些5-6次。

经过一些配置后，这适用于本地MySQL服务器。我创建了一个小应用程序，当从数据库收集的数组不为空或不为空时，将我发送到index.jsp，如果它为空或为null，则将我发送到about.jsp。

现在在本地和外部数据库中，我创建了一个具有相同名称，列＆＃39; day＆＃39;并插入1个值。当我在本地运行时，它会将我发送到索引页面，但是当我通过我的OpenShift网页运行它时，它会将我发送到about页面。

这是在SSH / app-root / logs / jbossews.log中发现的错误（用户名和serverip已注释掉）：

注意：服务器和登录信息是由OPANSHIFT提供的

DAO的路径是：OpeningsTijdenServlet - ＆gt; （静态）ServiceProvider - ＆gt; OTService - ＆gt; OpeningsTijdenDAO（扩展BaseDAO）

INFO: Server startup in 10894 ms
+++++ Mon Oct 12 16:07:51 EDT 2015
org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create      PoolableConnectionFactory (Access denied for user '<<USERNAME>>'@'SERVERIP' (using password: YES))
    at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:1551)
    at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1390)
    at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:1046)
    at main.java.database.OpeningsTijdenDAO.selectTijden(OpeningsTijdenDAO.java:16)
    at main.java.database.OTService.getTijden(OTService.java:13)
    at main.java.servlets.GetTijdenServlet.doPost(GetTijdenServlet.java:17)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    at org.apache.catalina.valves.RemoteIpValve.invoke(RemoteIpValve.java:683)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1042)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.sql.SQLException: Access denied for user '<<USERNAME>>'@'SERVERNAME' (using password: YES)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1078)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4187)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4119)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:927)

Answer 1

您的凭据有问题。尝试更改凭据或服务器配置。您必须选择任何托管服务器＆＃34; localhost＆＃34; /＆＃34; 127.0.0.1＆＃34;作为您的数据库主机。

SQLNestedException：无法创建PoolableConnectionFactory（用户访问被拒绝＆＃39;＆lt; <用户名>＆gt;＆＃39; @＆＃39;服务器＆＃39;（使用密码：是））

1 个答案: