private void rtrBtnActionPerformed(java.awt.event.ActionEvent evt) {
DefaultTableModel model = (DefaultTableModel) depTbl.getModel();
try{
Class.forName("java.sql.Driver");
Connection con = DriverManager.getConnection("jdbc:mysql://localhost/test1","admin","root");
Statement stmt = con.createStatement();
String query = "SELECT * FROM dept;";
ResultSet rs = stmt.executeQuery(query);
while(rs.next()){
String dno = rs.getString("deptno");
String dName = rs.getString("dname");
String lc = rs.getString("loc");
model.addRow(new Object[] {dno,dName,lc});
}
rs.close();
stmt.close();
con.close();
}
catch(Exception e){
JOptionPane.showMessageDialog(null,"Error In Connectivity");
}
}
我試圖將我的JForm連接到mysql數據庫,但無法連接到數據庫,連續執行catch語句「連接錯誤」,請幫助我該如何解決此問題。 .................................................. ...........................JAVA:執行Catch not try
你有什麼異常?在catch中打印異常。 – Tunaki
編譯和運行無錯,但無法從數據庫中檢索數據 – ASK