<分区>
我是 Java 的初学者，正在尝试向数据库中插入值。请找到附件中的代码
我有这两张表-
创建表 user_data(uname varchar(50) ,info varchar(1000),title varchar(100));
创建表用户(uname varchar(20), email varchar(20), pswd varchar(20), country varchar(20), state varchar(20), phone_no varchar(20));
public void actionPerformed(ActionEvent e) {
if (e.getSource() == encode)
{
String s1 = ta.getText();
//System.out.println(s1);
String s2 = tf.getText();
int i=0;
String[] datas = new String[20];
for (String line : ta.getText().split("\\n"))
{
datas[i]=line ;
i=i+1;
}
StringBuilder strBuilder = new StringBuilder();
for (int j = 0; j < i; j++) {
strBuilder.append(datas[j]+'\n');
}
String newString = strBuilder.toString();
//System.out.println(newString);
String s3 = tf1.getText();
try
{
Connection con=ConnectionProvider.getCon();
AES a=new AES(newString,s2,0);
//RSA rs = new RSA(newString);
PreparedStatement ps=con.prepareStatement("INSERT INTO user_data (uname, info, title) VALUES (?,?,?,?)");
ps.setString(1, st);
ps.setString(2, newString);
ps.setString(3, s3);
ps.setString(4, s2);
ps.executeUpdate();
JOptionPane.showMessageDialog(null,"Database Updated");
this.dispose();
new reservations(st);
}
catch (Exception ex)
{
System.out.println(ex);
}
}
else if(e.getSource()== reset)
{
ta.setText("");
tf.setText("");
tf1.setText("");
}
else{
this.dispose();
new reservations(st);
}
}
我希望插入值。请帮助我找到结果。
提前致谢。