如何使用Java将数据从4个文本字段发送到Netbeans中的Derby数据库

Question

我有一个注册页面，可以在4个文本字段中输入客户信息，即客户名称，客户地址，客户电子邮件和客户联系电话。

我想知道如何使用Java从文本字段获取数据并将其放入netbeans的Derby数据库中。

Answer 1

好吧，您需要首先从字段中获取文本，如下所示：

//Replace the textfield names with your textfield variable names
String customerName = txtFieldCustomerName.getText();
String customerAddress = txtFieldCustomerAddress.getText();
String customerEmail = txtFieldCustomerEmail.getText();
String customerContactNumber = txtFieldCustomerContactNumber.getText();

现在我们有了所有数据，我们可以执行数据库插入

Connection con = null;
PreparedStatement pstmt = null;
try {
   Class.forName("org.apache.derby.jdbc.ClientDriver").newInstance();
        //Get a connection
   con = DriverManager.getConnection("jdbc:derby://localhost:1527/myDB;create=true;user=me;password=mine");//Replace this with your information to your database

   //now we have a connection, we can perform the insert
   pstmt = con.prepareStatement("insert into TABLE_NAME_HERE (customerName, customerAddress, customerEmail, customerContactNumber) VALUES (?, ?, ?, ?)");
   pstmt.prepareString(1, customerName);
   pstmt.prepareString(2, customerAddress);
   pstmt.prepareString(3, customerEmail);
   pstmt.prepareString(4, customerContactNumber);

   pstmt.executeUpdate(); //execute the insert
} catch(SQLException sqle) {
   sqle.printStackTrace();
}
finally { //close the connection after everything is done.
   try {
      con.close();
      pstmt.close();
   } catch(SQLException sqle) {
       sqle.printStackTrace();
   }
}