JAVA进销存管理系统的研究与应用+ER图(12)
时间:2017-02-13 13:31 来源:毕业论文 作者:毕业论文 点击:次
public void actionPerformed(final ActionEvent e) { diZhiF.setText(""); bianMaF.setText(""); chuanZhenF.setText(""); jianChengF.setText(""); lianXiRenF.setText(""); lianXiRenDianHuaF.setText(""); EMailF.setText(""); quanChengF.setText(""); dianHuaF.setText(""); yinHangF.setText(""); } } (3)创建TjActionListener类,该类是“添加”按钮的事件监听器,它必须实现ActionListener接口,并在actionPerformed()方法中实现用户输入的验证和供应商的保存,关键代码如下。 class TjActionListener implements ActionListener {// 添加按钮的事件监听类 public void actionPerformed(final ActionEvent e) { if (diZhiF.getText().equals("") || quanChengF.getText().equals("") || chuanZhenF.getText().equals("") || jianChengF.getText().equals("") || yinHangF.getText().equals("") || bianMaF.getText().equals("") || diZhiF.getText().equals("") || lianXiRenF.getText().equals("") || lianXiRenDianHuaF.getText().equals("") || EMailF.getText().equals("") || dianHuaF.getText().equals("")) { JOptionPane.showMessageDialog(GysTianJiaPanel.this, "请填写全部信息"); return; } try { ResultSet haveUser = Dao .query("select * from tb_gysinfo where name='" + quanChengF.getText().trim() + "'"); if (haveUser.next()) { JOptionPane.showMessageDialog(GysTianJiaPanel.this, (责任编辑:qin) |