querystudentjpanel.java

用Java做的一个学生考试分析程序

/*
 * QueryStudentJPanel.java
 *
 * Created on 2007年12月13日, 下午8:13
 */

package 考试成绩分析程序;
import javax.swing.*;
/**
 *
 * @author  drawen
 */
public class QueryStudentJPanel extends javax.swing.JPanel {
    
    /** Creates new form QueryStudentJPanel */
    public QueryStudentJPanel() {
        initComponents();
    }
    
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc=" 生成的代码 ">//GEN-BEGIN:initComponents
    private void initComponents() {
        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        jLabel3 = new javax.swing.JLabel();
        inputStudentId = new javax.swing.JTextField();
        studentName = new javax.swing.JTextField();
        confirm = new javax.swing.JButton();
        jLabel4 = new javax.swing.JLabel();
        studentId = new javax.swing.JTextField();

        jLabel1.setText("\u67e5\u8be2\u5b66\u751f\u4fe1\u606f");

        jLabel2.setText("\u8f93\u5165\u5b66\u751f\u5b66\u53f7\uff1a");

        jLabel3.setText("\u5b66\u751f\u59d3\u540d\uff1a");

        inputStudentId.setText("1");

        studentName.setEditable(false);

        confirm.setText("\u786e\u5b9a");
        confirm.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                confirmButtonActionListener(evt);
            }
        });

        jLabel4.setText("\u5b66\u751f\u5b66\u53f7\uff1a");

        studentId.setEditable(false);

        org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(this);
        this.setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(layout.createSequentialGroup()
                        .add(58, 58, 58)
                        .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING, false)
                            .add(jLabel2, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                            .add(jLabel4, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                            .add(jLabel3, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                        .add(95, 95, 95)
                        .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING, false)
                            .add(inputStudentId, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 120, Short.MAX_VALUE)
                            .add(studentId)
                            .add(studentName)))
                    .add(layout.createSequentialGroup()
                        .add(158, 158, 158)
                        .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                            .add(confirm)
                            .add(jLabel1))))
                .addContainerGap(43, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .add(40, 40, 40)
                .add(jLabel1)
                .add(41, 41, 41)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jLabel2)
                    .add(inputStudentId, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .add(28, 28, 28)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jLabel4)
                    .add(studentId, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .add(15, 15, 15)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jLabel3)
                    .add(studentName, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .add(31, 31, 31)
                .add(confirm)
                .addContainerGap(47, Short.MAX_VALUE))
        );
    }// </editor-fold>//GEN-END:initComponents

    private void confirmButtonActionListener(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_confirmButtonActionListener
        try{
            long id=Long.parseLong(inputStudentId.getText());
            Student student=Student.queryFromFile(id);
            if(student!=null){
                studentId.setText(String.valueOf(student.getId()));
                studentName.setText(student.getName());
                JOptionPane.showMessageDialog(null,"查询学生信息成功","查询结果",JOptionPane.WARNING_MESSAGE);
            }
            else{
                studentId.setText("");
                studentName.setText("");
                JOptionPane.showMessageDialog(null,"查询不到相应学生信息","查询结果",JOptionPane.WARNING_MESSAGE);                
            }
        }catch(Exception e){
            JOptionPane.showMessageDialog(null,"输入数据有误","出错",JOptionPane.ERROR_MESSAGE);
        }
    }//GEN-LAST:event_confirmButtonActionListener
    
    
    // 变量声明 - 不进行修改//GEN-BEGIN:variables
    private javax.swing.JButton confirm;
    private javax.swing.JTextField inputStudentId;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JTextField studentId;
    private javax.swing.JTextField studentName;
    // 变量声明结束//GEN-END:variables
    
}