图书管理系统数据库源代码(5)

JOptionPane.showMessageDialog(null,\可借天数文本框不可为空\

return; } if(!check.isNumeric(days.getText().trim())) { JOptionPane.showMessageDialog(null,\可借天数必须为数字\ return; } if(fakuan.getText().length()==0) { JOptionPane.showMessageDialog(null,\罚款文本框不可为空\ return; } if(!check.isNumeric(fakuan.getText().trim())) { JOptionPane.showMessageDialog(null,\罚款必须为数字\ return; } int

i=Business.InsertBookType(bookTypeName.getText().trim(),days.getText().trim(),Double.valueof(fakuan.getText.trim())/10); if(i==1) { JOptionPane.showMessageDialog(null,\添加成功！\ doDefaultCloseAction(); } } });

panel_6.add(button);

final JButton buttonDel=new JButton(); buttonDel.setText(\关闭\；

buttonDel.addActionListener(new ActionListener(){ public void actionPerformed(final ActionEvent e){ doDefaultCloseAction(); } });

panel_6.add(buttonDel); setVisibel(true); }

//修改图书类

class ButtonAddListener implements ActionListener{ public void actionPerformed(ActionEvent e){

Object selectedItem=bookTypeModel.getSelectedItem(); int

i=Business.UpdatebookType(BookTypeId.getText().trim(),selectedItem.toString(),days.getText().trim(),fk.getText().trim()); if(i==1) { JOptionPane.showMessageDialog(null,\修改成功\ object[][] results=getFileStates(Business.selectBookCategory()); model.setDataVector(results.columnNames); } } }

table.setModel(model);

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