JDBC connection errors
Hi I am getting the following errors while trying to make a JDBC connection. Please help. description The server encountered an internal error () that prevented it from fulfilling this request. exception javax.servlet.ServletException: Unable to get connection, DataSource invalid: org.apache.commons.dbcp.SQLNestedException: Cannot create JDBC driver of class '' for connect URL 'null' org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:825) org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:758) org.apache.jsp.test_jsp._jspService(test_jsp.java:82) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) root cause javax.servlet.jsp.JspException: Unable to get connection, DataSource invalid: org.apache.commons.dbcp.SQLNestedException: Cannot create JDBC driver of class '' for connect URL 'null' org.apache.taglibs.standard.tag.common.sql.QueryTagSupport.getConnection(Unknown Source) org.apache.taglibs.standard.tag.common.sql.QueryTagSupport.doStartTag(Unknown Source) org.apache.jsp.test_jsp._jspx_meth_sql_query_0(test_jsp.java:101) org.apache.jsp.test_jsp._jspService(test_jsp.java:58) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236) javax.servlet.http.HttpServlet.service(HttpServlet.java:802 __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
RE: JDBC connection errors
Hi, Looks like you are using the Tomcat Connection pool. Refer to the attached file and verify that you have done these steps. I think it should solve your problem. -Original Message- From: deepak suldhal [mailto:[EMAIL PROTECTED] Sent: Monday, February 21, 2005 11:43 AM To: tomcat users Subject: JDBC connection errors Hi I am getting the following errors while trying to make a JDBC connection. Please help. description The server encountered an internal error () that prevented it from fulfilling this request. exception javax.servlet.ServletException: Unable to get connection, DataSource invalid: org.apache.commons.dbcp.SQLNestedException: Cannot create JDBC driver of class '' for connect URL 'null' org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextI mpl.java:825) org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImp l.java:758) org.apache.jsp.test_jsp._jspService(test_jsp.java:82) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:3 24) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) root cause javax.servlet.jsp.JspException: Unable to get connection, DataSource invalid: org.apache.commons.dbcp.SQLNestedException: Cannot create JDBC driver of class '' for connect URL 'null' org.apache.taglibs.standard.tag.common.sql.QueryTagSupport.getConnection(Unk nown Source) org.apache.taglibs.standard.tag.common.sql.QueryTagSupport.doStartTag(Unknow n Source) org.apache.jsp.test_jsp._jspx_meth_sql_query_0(test_jsp.java:101) org.apache.jsp.test_jsp._jspService(test_jsp.java:58) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:3 24) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236) javax.servlet.http.HttpServlet.service(HttpServlet.java:802 __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com http://www.patni.com World-Wide Partnerships. World-Class Solutions. _ This e-mail message may contain proprietary, confidential or legally privileged information for the sole use of the person or entity to whom this message was originally addressed. Any review, e-transmission dissemination or other use of or taking of any action in reliance upon this information by persons or entities other than the intended recipient is prohibited. If you have received this e-mail in error kindly delete this e-mail from your records. If it appears that this mail has been forwarded to you without proper authority, please notify us immediately at [EMAIL PROTECTED] and delete this mail. _ Settings for Tomcat Connection Pool *** 1) Put classes12.jar file in path = CATALINA_HOME\common\lib 2) Add the Tag given below into server.xml file DefaultContext Resource name=jdbc/myOracle type=javax.sql.DataSource/ ResourceParams name=jdbc/myOracle parameter namefactory/name valueorg.apache.commons.dbcp.BasicDataSourceFactory/value /parameter parameter namedriverClassName/name valueoracle.jdbc.driver.OracleDriver/value /parameter parameter nameurl/name valuejdbc:oracle:thin:[EMAIL PROTECTED]:1521:PKGSFT/value /parameter parameter nameusername/name valuepswtoshiba/value /parameter parameter namepassword/name valuepswtoshiba/value /parameter parameter namemaxActive/name value50/value /parameter parameter namemaxIdle/name value10/value /parameter parameter namemaxWait/name value3/value /parameter parameter nameremoveAbandoned/name valuetrue/value /parameter parameter nameremoveAbandonedTimeout/name value300/value /parameter parameter namelogAbandoned/name valuetrue/value /parameter /ResourceParams /DefaultContext 3) Change the values of url, username, password as per the environment setup at Toshiba side. 4) Significance of following tags: maxActive : Maximum number of dB connections in pool. Make sure the max_connections of DB are large enough to handle this limit. Set to 0 for no limit. maxIdle : Maximum number of idle dB connections to retain in pool. Set to 0 for no limit. maxWait : Maximum time to wait for a dB connection to become available
RE: JDBC connection errors
You are not giving the correct parameters for the connection, see '' and null, correct them ... Best Regards, S H A K E E L A H M A D http://members.fortunecity.com/javaclub/shakeel.htm Voice: 00923002723316 Senior Software Engineer. NorthStar Technologies. www.globalnorthstar.com EE(Computer Engineering), UET Lahore, Pakistan. SCJP,SCWCD SCBCD Sun Microsystems, Inc. Brain Bench Certified Java Programmer. -Original Message- From: deepak suldhal [mailto:[EMAIL PROTECTED] Sent: 21 February, 2005 11:13 AM To: tomcat users Subject: JDBC connection errors Hi I am getting the following errors while trying to make a JDBC connection. Please help. description The server encountered an internal error () that prevented it from fulfilling this request. exception javax.servlet.ServletException: Unable to get connection, DataSource invalid: org.apache.commons.dbcp.SQLNestedException: Cannot create JDBC driver of class '' for connect URL 'null' org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextI mpl.java:825) org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImp l.java:758) org.apache.jsp.test_jsp._jspService(test_jsp.java:82) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:3 24) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) root cause javax.servlet.jsp.JspException: Unable to get connection, DataSource invalid: org.apache.commons.dbcp.SQLNestedException: Cannot create JDBC driver of class '' for connect URL 'null' org.apache.taglibs.standard.tag.common.sql.QueryTagSupport.getConnection(Unk nown Source) org.apache.taglibs.standard.tag.common.sql.QueryTagSupport.doStartTag(Unknow n Source) org.apache.jsp.test_jsp._jspx_meth_sql_query_0(test_jsp.java:101) org.apache.jsp.test_jsp._jspService(test_jsp.java:58) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:3 24) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236) javax.servlet.http.HttpServlet.service(HttpServlet.java:802 __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
