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나는 값을 수동으로 지정하고 저장 (jButton2) 버튼을 클릭하여 sql에 데이터를 저장하는 jtable을 만들었습니다. 문제는 그 때입니다. jtable을 공백으로 유지하고 저장합니다. 데이터는 저장되지만 데이터베이스에는 저장되지 않습니다.데이터가 jtable (편집 됨)을 통해 데이터베이스에 저장되지 않음
그리고 jtable에 데이터를 넣을 때 예외를 저장하려고합니다.
열 (I, 5) 열을 곱한 값을 얻고 (I, 3), 열 (I, 4)
jButton2ActionPerformed 다음 방법은 (저장 버튼)
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
try {
String sql="insert into `sampleDB`.`Item_detail` (P_name,Manuf_name,Model_no,Purchase_price,Available,total Price,Sell_price,Quality,Color,Description,profit,Cost_price,idDealerItem) values(?,?,?,?,?,?,?,?,?,?,?,?,?)";
pst=con.prepareStatement(sql);
int last=jTable1.getRowCount();
for(int i=0;i<last;i++){
if(((String) jTable1.getValueAt(i,0))!=null){
String column1= (String) jTable1.getValueAt(i,0);
String column2= (String) jTable1.getValueAt(i,1);
String column3= (String) jTable1.getValueAt(i,2);
String column4= (String) jTable1.getValueAt(i,3);
String column5= (String) jTable1.getValueAt(i,4);
String column6= (String) jTable1.getValueAt(i,5);
String column7= (String) jTable1.getValueAt(i,6);
pst.setString(1,column1);
pst.setString(2,column2);
pst.setString(3,column3);
pst.setString(4,column4);
pst.setString(5,column5);
pst.setString(6,column6);
pst.setString(7,null);
pst.setString(8,column7);
pst.setString(9,null);
pst.setString(10,null);
pst.setString(11,null);
pst.setString(12,null);
pst.setString(13,null);
pst.execute();
}
}
JOptionPane.showMessageDialog(null, "data saved");
}
catch(Exception e) {
e.printStackTrace();
}
방법 따라 :
private void jTable1KeyPressed(java.awt.event.KeyEvent evt) {
// TODO add your handling code here:
if(evt.getKeyCode()==KeyEvent.VK_TAB){
int r = jTable1.getRowCount();
for (int i = 0; i < r; i++){
if(jTable1.getValueAt(i,3)!=null && jTable1.getValueAt(i,4)!=null){
int a=Integer.parseInt(jTable1.getValueAt(i,3).toString());
int b=Integer.parseInt(jTable1.getValueAt(i,4).toString());
int d= a*b;
jTable1.setValueAt(d,i,5);
}
}
}
}
새로운 오류가 같은 곳에 열을 곱해지고 것은 :
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'Price,Sell_price,Quality,Color,Description,profit,Cost_price,idDealerItem) value' at line 1
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:409)
at com.mysql.jdbc.Util.getInstance(Util.java:384)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1054)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3566)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3498)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1959)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2113)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2568)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2113)
at com.mysql.jdbc.PreparedStatement.execute(PreparedStatement.java:1364)
at Extra.jButton2ActionPerformed(Extra.java:331)
at Extra.access$300(Extra.java:14)
at Extra$4.actionPerformed(Extra.java:121)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6505)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3311)
at java.awt.Component.processEvent(Component.java:6270)
at java.awt.Container.processEvent(Container.java:2229)
at java.awt.Component.dispatchEventImpl(Component.java:4861)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
at java.awt.Container.dispatchEventImpl(Container.java:2273)
at java.awt.Window.dispatchEventImpl(Window.java:2719)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:694)
at java.awt.EventQueue$3.run(EventQueue.java:692)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.awt.EventQueue$4.run(EventQueue.java:708)
at java.awt.EventQueue$4.run(EventQueue.java:706)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:705)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)
도와주세요 .. 미리 감사 ..
의 working..now 내가 다시 problem..Please 내가 코드 및 오류를 편집 한 확인 만드는 database..its에서 다른 테이블에 데이터를 저장하려고 .. – AM26
문제 : 그로 변경 해결 .. – AM26
그거 좋은데 ...) – alex2410