javax.servlet.jsp.JspException: Unable to get connection, DataSource invalid: "java.sql.SQLException: Listener refused the connection with the following error: ORA-12514, TNS:listener does not currently know of service requested in connect descriptor "

forosdelweb.com | 3 months ago
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    javax.servlet.jsp.JspException: Unable to get connection, DataSource invalid: "java.sql.SQLException: Listener refused the connection with the following error: ORA-12514, TNS:listener does not currently know of service requested in connect descriptor "
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    Unable to get connection, DataSource invalid: "java.sql.SQLException: Cannot create PoolableConnectionFactory (Communications link failure

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    javax.servlet.jsp.JspException: Unable to get connection, DataSource invalid: "java.sql.SQLException: 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.)"
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    javax.servlet.jsp.JspException: Unable to get connection, DataSource invalid: "org.postgresql.util.PSQLException: Connection refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections."
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    Stack Overflow | 2 years ago | user3811680
    javax.servlet.jsp.JspException: Unable to get connection, DataSource invalid: "org.apache.tomcat.dbcp.dbcp.SQLNestedException: 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.)"

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    Root Cause Analysis

    1. javax.servlet.jsp.JspException

      Unable to get connection, DataSource invalid: "java.sql.SQLException: Listener refused the connection with the following error: ORA-12514, TNS:listener does not currently know of service requested in connect descriptor "

      at org.apache.taglibs.standard.tag.common.sql.QueryTagSupport.getConnection()
    2. JSTL
      QueryTagSupport.doStartTag
      1. org.apache.taglibs.standard.tag.common.sql.QueryTagSupport.getConnection(QueryTagSupport.java:318)
      2. org.apache.taglibs.standard.tag.common.sql.QueryTagSupport.doStartTag(QueryTagSupport.java:201)
      2 frames
    3. jsp_servlet
      __procesajstl._jspService
      1. jsp_servlet.__procesajstl._jsp__tag1(__procesajstl.java:163)
      2. jsp_servlet.__procesajstl._jspService(procesaJSTL.jsp:19)
      2 frames