[英]Insert Mulitple Row Data from Jtable into database
I am trying to save Multiple row data from JTable into Database, Here is my code for reference: 我试图将多行数据从JTable保存到数据库中,这是我的代码供参考:
try{
int rows=tblCO2.getRowCount();
for(int row = 0; row<rows; row++)
{
String coitemname = (String)tblCO2.getValueAt(row, 0);
String cocateg = (String)tblCO2.getValueAt(row, 1);
String codesc = (String)tblCO2.getValueAt(row, 2);
String coloc = (String)tblCO2.getValueAt(row, 3);
String coitemtagno = (String)tblCO2.getValueAt(row, 4);
try
{
Class.forName("com.mysql.jdbc.Driver").newInstance();
conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/iotams",user,pass);
conn.setAutoCommit(false);
String queryco = "Insert into tblcheckout(CheckoutID,ItemTagNo,ItemName,Category,Description,Location) values (?,?,?,?,?)";
pst = conn.prepareStatement(queryco);
pst.setString(1, coitemname);
pst.setString(2, cocateg);
pst.setString(3, codesc);
pst.setString(4, coloc);
pst.setString(5, coitemtagno);
pst.addBatch();
}
catch(Exception e)
{
}
}
pst.executeBatch();
conn.commit();
}
catch(Exception e){
JOptionPane.showMessageDialog(this,e.getMessage());
}
The Problem is, it is only inserting one row data into database. 问题是,它只是将一行数据插入数据库。 Can someone please help me? 有人可以帮帮我吗? :( thanks! :( 谢谢!
Remove following line codes from loop and place before loop 从循环中删除以下行代码并在循环之前放置
Class.forName("com.mysql.jdbc.Driver").newInstance();
conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/iotams",user,pass);
conn.setAutoCommit(false);
String queryco = "Insert into tblcheckout(CheckoutID,ItemTagNo,ItemName,Category,Description,Location) values (?,?,?,?,?)";
pst = conn.prepareStatement(queryco);
Example: Replace your code by following code 示例:通过以下代码替换代码
try{
int rows=tblCO2.getRowCount();
Class.forName("com.mysql.jdbc.Driver").newInstance();
conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/iotams",user,pass);
conn.setAutoCommit(false);
String queryco = "Insert into tblcheckout(CheckoutID,ItemTagNo,ItemName,Category,Description,Location) values (?,?,?,?,?)";
pst = conn.prepareStatement(queryco);
for(int row = 0; row<rows; row++)
{
String coitemname = (String)tblCO2.getValueAt(row, 0);
String cocateg = (String)tblCO2.getValueAt(row, 1);
String codesc = (String)tblCO2.getValueAt(row, 2);
String coloc = (String)tblCO2.getValueAt(row, 3);
String coitemtagno = (String)tblCO2.getValueAt(row, 4);
pst.setString(1, coitemname);
pst.setString(2, cocateg);
pst.setString(3, codesc);
pst.setString(4, coloc);
pst.setString(5, coitemtagno);
pst.addBatch();
}
pst.executeBatch();
conn.commit();
}
catch(Exception e){
JOptionPane.showMessageDialog(this,e.getMessage());
}
Then run it think it work. 然后运行它认为它工作。
For Batch insert example is here https://my.vertica.com/docs/5.0/HTML/Master/14878.htm 对于批量插入示例,请访问https://my.vertica.com/docs/5.0/HTML/Master/14878.htm
the code above is not able to run in netbeans , However I made a version for netbeans. 上面的代码无法在netbeans中运行,但我为netbeans创建了一个版本。
try{
int rows=jTable1.getRowCount();
for(int row = 0; row<rows; row++)
{
Integer qty = (Integer)jTable1.getValueAt(row, 0);
Double unitprice = (Double) jTable1.getValueAt(row, 1);
String description = (String)jTable1.getValueAt(row, 2);
Double total = (Double)jTable1.getValueAt(row, 3);
String queryco = "Insert into invoice(qty,unitprice,description,total) values ('"+qty+"','"+unitprice+"','"+description+"','"+total+"')";
pst = conn.prepareStatement(queryco);
pst.execute();
}
JOptionPane.showMessageDialog(null, "Successfully Save");
}
catch(Exception e){
JOptionPane.showMessageDialog(this,e.getMessage());
}
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