带有应答的远端信息注册系统设计

package course; import java.awt.Button; import java.awt.GridLayout; import java.awt.Label; import java.awt.Panel; import java.awt.TextField; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.awt.event.MouseListener; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.net.Socket; import javax.swing.JFrame; import javax.xml.soap.Text; public class C { private static String stu_information = "无"; //学生信息 private static TextField test = new TextField("",10);//校验结果最终显示的地方 public static void main(String[] args) { //客户端线程 new Thread () { @Override public void run() { try { String s = "无"; //发送字符串 byte[] b = new byte[1024]; String bs = "无";//校验结果 Socket socket = new Socket("127.0.0.1", 6667); OutputStream os = socket.getOutputStream(); InputStream is = socket.getInputStream(); int len = 0; //如果学生信息改变 while (true) { try { //发送消息 Thread.sleep(1000); //没有sleep(),则无法进行if语句的判断？ if (!stu_information.equals(s)) { //这里为什么要改为static才行 s = stu_information; b = s.getBytes(); os.write(b); System.out.println("已经发送"); //接收消息 len = is.read(b); bs = new String(b,0,len); test.setText(bs); System.out.println("已经接收" + bs); } } catch (InterruptedException e) { e.printStackTrace(); } } } catch (IOException e) { e.printStackTrace(); } } }.start(); //--------------------------------------------------------------------------------------------------------------// //界面线程 new Thread() { private JFrame jframe = new JFrame("test"); private Button sure = new Button("确认注册"); private Label id = new Label("学号",Label.CENTER); private Label clazz = new Label("班级",Label.CENTER); private Label name = new Label("姓名",Label.CENTER); private Label age = new Label("年龄",Label.CENTER); private Label pass = new Label("密码",Label.CENTER); private TextField idtext = new TextField("",1); private TextField clazztext = new TextField("",1); private TextField nametext = new TextField("",1); private TextField agetext = new TextField("",1); private TextField passtext = new TextField("",1); @Override public void run() { init(); panel(); listener(); } private void listener() { sure.addMouseListener(new MouseAdapter() { @Override public void mouseReleased(MouseEvent e) { //把学生信息放在stu_information里面 //想要在这里使用stu_information需要设置成static，为什么 stu_information = idtext.getText() + "," + clazztext.getText() + "," + nametext.getText() + "," + agetext.getText() + "," + passtext.getText(); } }); } private void panel() { Panel panel = new Panel(); Panel panel2 = new Panel(); Panel panel3 = new Panel(); panel.setLayout(new GridLayout(5, 2)); panel.add(id); panel.add(idtext); panel.add(clazz); panel.add(clazztext); panel.add(name); panel.add(nametext); panel.add(age); panel.add(agetext); panel.add(pass); panel.add(passtext); panel2.add(sure); panel3.add(test); jframe.add(panel); jframe.add(panel2); jframe.add(panel3); } private void init() { jframe.setLayout(new GridLayout(3, 1)); jframe.setLocation(500, 50); jframe.setSize(300, 280); jframe.setVisible(true); } }.start(); } }