如何使用Java將數據從4個文本字段發送到Netbeans中的Derby數據庫

Question

我有一個注冊頁面，可以在4個文本字段中輸入客戶信息，即客戶名稱，客戶地址，客戶電子郵件和客戶聯系電話。

我想知道如何使用Java從文本字段獲取數據並將其放入netbeans的Derby數據庫中。

Answer 1

好吧，您需要首先從字段中獲取文本，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();

現在我們有了所有數據，我們可以執行數據庫插入

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();
   }
}