How can I save data from JTextField into the mysql database?
import java.awt.Panel;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.Statement;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;
import com.mysql.jdbc.Connection;
public class one {
JFrame frame = new JFrame("ghar hisab");
JButton b = new JButton("save");
Panel p = new Panel();
JTextField f = new JTextField(20);
JTextField f1 = new JTextField(20);
JLabel l = new JLabel("Enter the first name");
JLabel l1 = new JLabel("Enter the first name");
String s1,s2;
String ppl;
int people;
void display() throws Exception{
p.add(l);
p.add(f);
p.add(l1);
p.add(f1);
p.add(b);
frame.setSize(400,400);
frame.setVisible(true);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().add(p);
s1=f.getText();
s2=f1.getText();
Class.forName("com.mysql.jdbc.Driver");
Connection con = (Connection) DriverManager.getConnection("jdbc:mysql://localhost:3306/people","root","desire");
Statement stat = con.createStatement();
// String s3= "insert into name values s1 +开发者_如何学Go s2";
// stat.executeUpdate(s3);
stat.executeQuery("insert into name (first,last) values('"s1"','"s2"')");
// ResultSet rs= stat.executeQuery("insert into name (first,last) values("arun","yadav"));
//while(rs.next()){
// System.out.println(rs.getString(1)+" "+rs.getString(2));
// }
}
}
When I try to update the database using s1 and s2 an error occurs.
Not sure this can be the issue but your stat.executeQuery(...)
statement is wrong it should be:
stat.executeQuery("insert into name (first,last) values('"+s1+"','"+s2+"')");
To concat string with variables use +
operator.
Copy and paste this code into your project it is 100% work
data insert method:
public void insert()
{
try {
// connection string
Class.forName("com.mysql.jdbc.Driver").newInstance();
Connection con = DriverManager
.getConnection("jdbc:mysql://localhost:3306/Project?user=root&password=root");
Statement st = con.createStatement();
st.executeUpdate("insert into Register VALUES('"
+ tf1.getText() + "','" + tf2.getText() + "','"
+ tf3.getText() + "','" + cb1.getSelectedItem()
+ "','" + tf4.getText() + "','" + tf5.getText()
+ "','" + tf6.getText() + "','" + tf7.getText()
+ "','" + tf8.getText() + "','" + tf9.getText()
+ "'," + "'" + tf10.getText() + "','"
+ tf11.getText() + "','" + tf12.getText() + "','"
+ tf13.getText() + "','" + tf14.getText() + "',"
+ "'" + tf15.getText() + "','" +tf16.getText()
+ "','" + tf17.getText() + "','" + tf18.getText()
+ "'," + "'" + tf19.getText() + "','"
+ p1.getText() + "','" + p2.getText() + "')");
JOptionPane.showConfirmDialog(null, "Your Data Has been Inserted",
"Result", JOptionPane.DEFAULT_OPTION,
JOptionPane.PLAIN_MESSAGE);
st.close();
con.close();
}
catch (Exception e1)
{
System.out.println("Exception:" + e1);
}
}
Then call the method using button:
b1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
insert();
}
});
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