执行程序后出现以下错误
java.sql.SQLNonTransientConnectionException: Connection authentication failure occurred. Reason: Userid or password invalid.
at org.apache.derby.client.am.SQLExceptionFactory.getSQLException(Unknown Source)
at org.apache.derby.client.am.SqlException.getSQLException(Unknown Source)
at org.apache.derby.jdbc.ClientDriver.connect(Unknown Source)
at java.sql.DriverManager.getConnection(DriverManager.java:664)
at java.sql.DriverManager.getConnection(DriverManager.java:247)
at sfsfinal.Login.J_LoginActionPerformed(Login.java:481)
at sfsfinal.Login.access$1200(Login.java:29)
at sfsfinal.Login$14.actionPerformed(Login.java:366)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6535)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
at java.awt.Component.processEvent(Component.java:6300)
at java.awt.Container.processEvent(Container.java:2236)
at java.awt.Component.dispatchEventImpl(Component.java:4891)
at java.awt.Container.dispatchEventImpl(Container.java:2294)
at java.awt.Component.dispatchEvent(Component.java:4713)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4525)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466)
at java.awt.Container.dispatchEventImpl(Container.java:2280)
at java.awt.Window.dispatchEventImpl(Window.java:2750)
at java.awt.Component.dispatchEvent(Component.java:4713)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.awt.EventQueue$4.run(EventQueue.java:729)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
Caused by: ERROR 08004: Connection authentication failure occurred. Reason: Userid or password invalid.
at org.apache.derby.client.net.NetConnection.mapSecchkcd(Unknown Source)
at org.apache.derby.client.net.NetConnection.securityCheckComplete(Unknown Source)
at org.apache.derby.client.net.NetConnectionReply.parseSECCHKRM(Unknown Source)
at org.apache.derby.client.net.NetConnectionReply.parseSECCHKreply(Unknown Source)
at org.apache.derby.client.net.NetConnectionReply.readSecurityCheck(Unknown Source)
at org.apache.derby.client.net.NetConnection.readSecurityCheckAndAccessRdb(Unknown Source)
at org.apache.derby.client.net.NetConnection.flowSecurityCheckAndAccessRdb(Unknown Source)
at org.apache.derby.client.net.NetConnection.flowUSRIDPWDconnect(Unknown Source)
at org.apache.derby.client.net.NetConnection.flowConnect(Unknown Source)
at org.apache.derby.client.net.NetConnection.<init>(Unknown Source)
at org.apache.derby.client.net.ClientJDBCObjectFactoryImpl.newNetConnection(Unknown Source)
... 42 more
我的源代码如下：
private void J_LoginActionPerformed(java.awt.event.ActionEvent evt) {
Object selected = loginas.getSelectedItem();
if(loginas.getSelectedItem().toString().equals("Login As Student")){
Connection connection;
PreparedStatement ps = null;
try {
int flag=1;
try {
Class.forName("com.mysql.jdbc.Driver");
} catch (Exception ex) {
System.out.println("Error"+ex);
}
connection = DriverManager.getConnection("jdbc:derby://localhost:1527/loginDB","login_user","root");
Statement st = connection.createStatement();
ResultSet rs = st.executeQuery("SELECT * FROM LOGIN_USER.LOGINDETAILS");
while(rs.next()){
if(rs.getString(2).equals(jTextField_Username.getText()) && rs.getString(5).equals(new String(pass.getPassword()))){
flag=0;
break;
}}
if(flag == 0){
Student_Sfs sfs=new Student_Sfs();
sfs.setVisible(true);
sfs.pack();
sfs.setLocationRelativeTo(null);
sfs.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.dispose();
}
else{
JOptionPane.showMessageDialog(null,"Invalid UserID or Password");
jTextField_Username.setText(null);
pass.setText(null);
}
} catch (SQLException ex) {
Logger.getLogger(Login.class.getName()).log(Level.SEVERE, null, ex);
}
}
else{
Connection connection;
PreparedStatement ps = null;
try {
int flag=1;
try {
Class.forName("com.mysql.jdbc.Driver");
} catch (Exception ex) {
System.out.println("Error"+ex);
}
connection = DriverManager.getConnection("jdbc:derby://localhost:1527/loginDB","login_user","root");
Statement st = connection.createStatement();
ResultSet rs = st.executeQuery("SELECT * FROM LOGIN_USER.ADMINLOGIN");
while(rs.next()){
if(rs.getString(1).equals(jTextField_Username.getText()) && rs.getString(2).equals(new String(pass.getPassword()))){
flag=0;
break;
}}
if(flag == 0){
AdminDashboard add=new AdminDashboard();
add.setVisible(true);
add.pack();
add.setLocationRelativeTo(null);
add.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.dispose();
}
else{
JOptionPane.showMessageDialog(null,"Invalid UserID or Password");
jTextField_Username.setText(null);
pass.setText(null);
}
} catch (SQLException ex) {
Logger.getLogger(Login.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
请帮忙