Question

我尝试捕获两个异常，一个异常有效，但NumberFormatException f无效。

try
{
  String url = "jdbc:mysql://localhost/pokemonliste";
  con = DriverManager.getConnection( url, "root", "" );
  stmt = con.createStatement();

  String sqlQuery= ("INSERT INTO Pokemon (PName, Entwicklungsstufe) Values ('"+j+"',"+k+");");

  stmt.executeUpdate(sqlQuery);

  stmt.close();
  con.close();

      lblErfolgreich.setForeground(Color.BLUE);
      lblErfolgreich.setText("Pokemon wurde hinzugefügt");
      lblErfolgreich.setVisible(true);

}
 catch (NumberFormatException f) {

      lblErfolgreich.setForeground(Color.RED);
      lblErfolgreich.setText("Für PokedexID nur Zahlen eingeben!");
      lblErfolgreich.setVisible(true);

     return;
  }


 catch (SQLException e){

  System.out.println( "Fehler bei Tabellenabfrage" + e );
  return;

}

}

例外

线程“ AWT-EventQueue-0”中的异常 java.lang.NumberFormatException：对于输入字符串：“ eqw”位于 java.lang.NumberFormatException.forInputString（NumberFormatException.java:65）在java.lang.Integer.parseInt（Integer.java:580）在 java.lang.Integer.parseInt（Integer.java:615）在 pokemonHinzufuegen $ 2.actionPerformed（pokemonHinzufuegen.java:94）在 javax.swing.AbstractButton.fireActionPerformed（AbstractButton.java:2022）在 javax.swing.AbstractButton $ Handler.actionPerformed（AbstractButton.java:2348）在 javax.swing.DefaultButtonModel.fireActionPerformed（DefaultButtonModel.java:402）在 javax.swing.DefaultButtonModel.setPressed（DefaultButtonModel.java:259）在 javax.swing.plaf.basic.BasicButtonListener.mouseReleased（BasicButtonListener.java:252）在java.awt.Component.processMouseEvent（Component.java:6533）在 javax.swing.JComponent.processMouseEvent（JComponent.java:3324）在 java.awt.Component.processEvent（Component.java:6298）在 java.awt.Container.processEvent（Container.java:2236）在 java.awt.Component.dispatchEventImpl（Component.java:4889）在 java.awt.Container.dispatchEventImpl（Container.java:2294）在 java.awt.Component.dispatchEvent（Component.java:4711）在 java.awt.LightweightDispatcher.retargetMouseEvent（Container.java:4888）在 java.awt.LightweightDispatcher.processMouseEvent（Container.java:4525）在java.awt.LightweightDispatcher.dispatchEvent（Container.java:4466）在java.awt.Container.dispatchEventImpl（Container.java:2280）在 java.awt.Window.dispatchEventImpl（Window.java:2746）在 java.awt.Component.dispatchEvent（Component.java:4711）在 java.awt.EventQueue.dispatchEventImpl（EventQueue.java:758）在 java.awt.EventQueue.access $ 500（EventQueue.java:97）在 java.awt.EventQueue $ 3.run（EventQueue.java:709）在 java.awt.EventQueue $ 3.run（EventQueue.java:703）在 java.security.AccessController.doPrivileged（本机方法），位于 java.security.ProtectionDomain $ JavaSecurityAccessImpl.doIntersectionPrivilege（ProtectionDomain.java:80）在 java.security.ProtectionDomain $ JavaSecurityAccessImpl.doIntersectionPrivilege（ProtectionDomain.java:90）在java.awt.EventQueue $ 4.run（EventQueue.java:731）在 java.awt.EventQueue $ 4.run（EventQueue.java:729）在 java.security.AccessController.doPrivileged（本机方法），位于 java.security.ProtectionDomain $ JavaSecurityAccessImpl.doIntersectionPrivilege（ProtectionDomain.java:80）在java.awt.EventQueue.dispatchEvent（EventQueue.java:728）在 java.awt.EventDispatchThread.pumpOneEventForFilters（EventDispatchThread.java:201）在 java.awt.EventDispatchThread.pumpEventsForFilter（EventDispatchThread.java:116）在 java.awt.EventDispatchThread.pumpEventsForHierarchy（EventDispatchThread.java:105）在 java.awt.EventDispatchThread.pumpEvents（EventDispatchThread.java:101）在 java.awt.EventDispatchThread.pumpEvents（EventDispatchThread.java:93）在java.awt.EventDispatchThread.run（EventDispatchThread.java:82）

尝试捕获NumberFormatException

0 个答案: