最近我在練習(xí)jdbc時(shí)做了個(gè)測(cè)試jsp頁(yè)面，但是發(fā)現(xiàn)一個(gè)惱人的問題，就是我無(wú)法使用ojdbc5.jar作為驅(qū)動(dòng)jar包連接oracle數(shù)據(jù)庫(kù)(因?yàn)榭偸菆?bào)異常)，而使用ojdbc14.jar卻可以正常連接數(shù)據(jù)庫(kù) (plsql也能正常連接)。小弟在網(wǎng)上尋找可是總也找不到解決辦法，所以想請(qǐng)教各位究竟是什么原因造成這個(gè)問題的呢？

代碼如下：

login_check.jsp:

String url="jdbc:oracle:thin:@localhost:1521:HDGATE1";

String db_user="HD_GATE";

String db_pwd="HD_GATE";

Class.forName("oracle.jdbc.driver.OracleDriver"); //oracle.jdbc.driver.OracleDriver

Connection conn=DriverManager.getConnection(url,db_user,db_pwd);

String sql= "select * from tb_users";

Statement stmt=conn.createStatement();

ResultSet rs=stmt.executeQuery(sql);

rs.next();

String i = rs.getString("USER_NAME");

String s = rs.getString("PASSWORD");

System.out.println("ROW = " + i + " " + s );

%>

異常信息：

嚴(yán)重: Servlet.service() for servlet [jsp] in context with path [/test_connection] threw exception [javax.servlet.ServletException: java.sql.SQLException: IO 錯(cuò)誤: Undefined Error] with root cause

oracle.net.ns.NetException: Undefined Error

at oracle.net.ns.NSProtocol.connect(NSProtocol.java:395)

at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1102)

at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:320)

at oracle.jdbc.driver.PhysicalConnection.(PhysicalConnection.java:546)

at oracle.jdbc.driver.T4CConnection.(T4CConnection.java:236)

at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)

at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:521)

at java.sql.DriverManager.getConnection(DriverManager.java:571)

at java.sql.DriverManager.getConnection(DriverManager.java:215)

at org.apache.jsp.login_005fcheck_jsp._jspService(login_005fcheck_jsp.java:103)

at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)

at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)

at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)

at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)

at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)

at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)

at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)

at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)

at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1852)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)

at java.lang.Thread.run(Thread.java:745)

我的項(xiàng)目環(huán)境是：

OS:windows8.1 專業(yè)版

數(shù)據(jù)庫(kù):oracle 11g 64位

服務(wù)器：tomcat 7

java：jdk:1.7

總結(jié)

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