当我运行我的应用程序时，我收到此消息（java.sql.sqlexception：没有合适的驱动程序（数据库链接）） 我搜索了13个小时，尝试了10多个解决方案。 这是我的连接代码
package khaledbayzav0.pkg1;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;
import javax.swing.*;
public class MySQLconn {
public static Connection mkmbhs(){
try{
Connection con = DriverManager.getConnection("jdbc:mysql://localhost/fuchs","root","mkmbhs");
Statement stmt = (Statement) con.createStatement();
}
catch(SQLException e){
JOptionPane.showMessageDialog(null, e);
}
return null;
}
}
这是Db（我的按钮和字段（jFrame）
的动作 package khaledbayzav0.pkg1;
import java.awt.event.* ;
import java.awt.* ;
import java.sql.*;
import javax.swing.JOptionPane;
import javax.swing.*;
public class NewCustomers extends javax.swing.JFrame {
Connection con = null;
ResultSet rs = null;
PreparedStatement pst = null;
public NewCustomers() {
initComponents();
con = MySQLconn.mkmbhs();
}
@SuppressWarnings("unchecked")
private void initComponents() {
jPanel1 = new javax.swing.JPanel();
jPanel2 = new javax.swing.JPanel();
jLabel5 = new javax.swing.JLabel();
jLabel4 = new javax.swing.JLabel();
jLabel3 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
name = new javax.swing.JTextField();
tele = new javax.swing.JTextField();
adrs = new javax.swing.JTextField();
sv = new javax.swing.JTextField();
add = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
jLabel6 = new javax.swing.JLabel();
setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
jPanel1.setBackground(new java.awt.Color(255, 255, 255));
jPanel1.setBorder(javax.swing.BorderFactory.createTitledBorder(null, "New Customer Form", javax.swing.border.TitledBorder.DEFAULT_JUSTIFICATION, javax.swing.border.TitledBorder.DEFAULT_POSITION, new java.awt.Font("Times New Roman", 1, 11))); // NOI18N
jLabel5.setText("Supervisor:");
jLabel4.setText("Address:");
jLabel3.setText("Telphone:");
jLabel2.setText("Customer Name:");
javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
jPanel2.setLayout(jPanel2Layout);
jPanel2Layout.setHorizontalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel2Layout.createSequentialGroup()
.addContainerGap()
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel2)
.addComponent(jLabel3)
.addComponent(jLabel4)
.addComponent(jLabel5))
.addGap(79, 79, 79)
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(sv, javax.swing.GroupLayout.DEFAULT_SIZE, 301, Short.MAX_VALUE)
.addComponent(adrs)
.addComponent(tele)
.addComponent(name))
.addContainerGap(55, Short.MAX_VALUE))
);
jPanel2Layout.setVerticalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel2Layout.createSequentialGroup()
.addContainerGap()
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel2Layout.createSequentialGroup()
.addComponent(name, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(tele, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(adrs, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(sv, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(jPanel2Layout.createSequentialGroup()
.addComponent(jLabel2)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jLabel3)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jLabel4)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jLabel5)))
.addContainerGap(23, Short.MAX_VALUE))
);
add.setText("ADD");
add.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
addActionPerformed(evt);
}
});
jButton2.setText("BACK");
jButton2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton2ActionPerformed(evt);
}
});
jLabel6.setFont(new java.awt.Font("Blackadder ITC", 0, 12)); // NOI18N
jLabel6.setForeground(new java.awt.Color(204, 0, 0));
jLabel6.setText("Designed By Mkmbhs");
javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addComponent(jPanel2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addContainerGap())
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
.addGap(58, 58, 58)
.addComponent(jButton2, javax.swing.GroupLayout.PREFERRED_SIZE, 174, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 99, Short.MAX_VALUE)
.addComponent(add, javax.swing.GroupLayout.PREFERRED_SIZE, 174, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(40, 40, 40))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
.addContainerGap(230, Short.MAX_VALUE)
.addComponent(jLabel6)
.addGap(219, 219, 219))
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(32, 32, 32)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(add)
.addComponent(jButton2))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 28, Short.MAX_VALUE)
.addComponent(jLabel6)
.addContainerGap())
);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jPanel1, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
pack();
}// </editor-fold>
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
close();
CustomersSelection CS = new CustomersSelection();
CS.setVisible(true);
}
private void addActionPerformed(java.awt.event.ActionEvent evt) {
try {
String sql = "INSERT INTO customerinof(CustomerName, CustomerAddress, CustomerTelephone, CustomerSupervisor) values (?,?,?,?)";
pst = con.prepareStatement(sql);
pst.setString(1, name.getText());
pst.setString(2, adrs.getText());
pst.setString(3, tele.getText());
pst.setString(4, sv.getText());
pst.execute();
JOptionPane.showMessageDialog(null, "New Customer added to your table ");
}
catch (Exception e){
JOptionPane.showMessageDialog(null, e);
}
}
public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new NewCustomers().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton add;
private javax.swing.JTextField adrs;
private javax.swing.JButton jButton2;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JLabel jLabel4;
private javax.swing.JLabel jLabel5;
private javax.swing.JLabel jLabel6;
private javax.swing.JPanel jPanel1;
private javax.swing.JPanel jPanel2;
private javax.swing.JTextField name;
private javax.swing.JTextField sv;
private javax.swing.JTextField tele;
// End of variables declaration
private void close() {
WindowEvent closeW = new WindowEvent(this,WindowEvent.WINDOW_CLOSING);
Toolkit.getDefaultToolkit().getSystemEventQueue().postEvent(closeW);
}
}
答案 0 :(得分：1)
将 mysql驱动程序jar （mysql-connector.jar）放入服务器lib文件夹中。这需要存在于classpath中，以便与数据库进行交互。
答案 1 :(得分：0)
您未加载驱动程序类
Class.forName("com.mysql.jdbc.Driver");
您需要在类路径中使用mysql-connector jar来加载Driver类以上
您可以从MySQL site