很少Jdbc問題

任何人都可以請告訴我使用哪個jdbc驅動程序與oracle 9.0.1.1連接？很少Jdbc問題

我使用jdk1.6。

我已使用classes12和ojdbc6但它們導致錯誤。

以下是我的代碼

繼Bean的數據庫相關的代碼是工作在簡單的Java應用程序，但是當我JSF頁面中使用它，它是給Java的空指針異常錯誤。在此先感謝。

Bean類：

import java.io.Serializable; 
import javax.faces.bean.ManagedBean; 
import javax.faces.bean.SessionScoped; 
import java.sql.Connection; 
import java.sql.DriverManager; 
import java.sql.PreparedStatement; 
@ManagedBean 
@SessionScoped  

public class Db implements Serializable{ 
    int eId; 
    public int geteId() { 
     return eId; 
    } 
    public void seteId(int eId) { 
     this.eId = eId; 
    } 
    public static Connection getConnection() throws Exception { 
     String driver = "oracle.jdbc.driver.OracleDriver"; 
     String url = "jdbc:oracle:thin:@localhost:1521:globldb3"; 
     String username = "scott"; 
     String password = "tiger"; 
     Class.forName(driver); 
     Connection conn = DriverManager.getConnection(url, username, password); 
     return conn; 
     } 
    public String addEmployee() throws Exception{ 
     Connection conn = null; 
     PreparedStatement pstmt = null; 
      try { 
        int a = this.eId; 
        conn = getConnection(); 
        String query = "INSERT INTO c(n) VALUES(?)"; 
        pstmt = conn.prepareStatement(query); 
        pstmt.setInt(1,a); 
        pstmt.executeUpdate(); // execute insert statement 
        return "success"; 
       } catch (Exception e) { 
         e.printStackTrace(); 
         return "failure"; 
       } finally { 
         pstmt.close(); 
         conn.close(); 
       } 
    }  
}

以下是我的JSF頁面

<html xmlns="http://www.w3.org/1999/xhtml" 
     xmlns:ui="http://java.sun.com/jsf/facelets" 
     xmlns:h="http://java.sun.com/jsf/html" 
     xmlns:f="http://java.sun.com/jsf/core"> 
<body> 
<h:form> 
<p>Enter value <h:inputText value="#{db.eId}"/> </p> 
<p> <h:commandButton value="Add record" action="#{db.addEmployee}"/> </p> 
</h:form> 
</body> 
</html>

以下異常，同時使用ojdbc6.jar comeing。

值java.sql.SQLException：ORA-03120：雙任務轉換程序：整數溢出

按照上面的異常

java.sql.SQLException: ORA-03120: two-task conversion routine: integer overflow 

at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:440) 
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:396) 
at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:837) 
at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:445) 
at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:191) 
at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:523) 
at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:207) 
at oracle.jdbc.driver.T4CPreparedStatement.executeForRows(T4CPreparedStatement.java:1010) 
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1315) 
at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3576) 
at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:3657) 
at oracle.jdbc.driver.OraclePreparedStatementWrapper.executeUpdate(OraclePreparedStatementWrapper.java:1350) 
at erpJavaFiles.Employee.addEmployee(Employee.java:113) 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
at java.lang.reflect.Method.invoke(Method.java:597) 
at org.apache.el.parser.AstValue.invoke(AstValue.java:262) 
at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:278) 
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105) 
at  javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88) 
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102) 
at javax.faces.component.UICommand.broadcast(UICommand.java:315) 
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:787) 
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1252) 
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81) 
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) 
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) 
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:312) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:306) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240) 
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) 
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164) 
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:108) 
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:558) 
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) 
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:379) 
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:243) 
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:259) 
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:237) 
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:281) 
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) 
at java.lang.Thread.run(Thread.java:619)

來源

2011-05-05 Adnan

然後告訴我們錯誤是什麼。 – skaffman 2011-05-05 14:18:05

ojdbc6.jar對於Oracle 9和JDK 6應該沒問題。用於連接和堆棧異常跟蹤的代碼確實很有用。就像傑裏·馬奎爾說的，「幫助我幫助你。」 – Paul 2011-05-05 14:23:24

我在問題中添加了異常，請注意觀看。 – Adnan 2011-05-05 16:07:21