Monthly Archive for 三月, 2007

发现经常要用,懒得每次都写了,直接写个类,然后以后调用下就好了,
传递过来定义的窗体的高和宽,然后自动设置居中了.
把变量名字都写错勒.- -#寒一个,懒得改了.
/*
* 获取屏幕分辨率,然后使窗体位于屏幕中央的操作,
* FreamCenter.java
*/
package com.hmilyld.common;
import java.awt.Dimension;
import java.awt.Toolkit;
public class FreamCenter {
static Toolkit myTool = Toolkit.getDefaultToolkit();
static Dimension dimn = myTool.getScreenSize();
public static int FreamCenterWitdh(int x) {
int width;
width=(dimn.width-x)/2;
return width;
}
public static int FreamCenterHeight(int y) {
int hieght;
hieght=(dimn.height-y)/2;
return hieght;
}
}

使用的时间,对要居中的窗体使用
frame.setLocation(FreamCenter.FreamCenterWitdh(frame.getWidth()),
FreamCenter.FreamCenterHeight(frame.getHeight()));
就可以勒.

package com.hmilyld;
import java.awt.BorderLayout;
import java.lang.reflect.InvocationTargetException;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import javax.swing.tree.DefaultMutableTreeNode;
public class DemoTree {
private static void createUI() {
DefaultMutableTreeNode home = new DefaultMutableTreeNode("学生管理系统");
DefaultMutableTreeNode stu1 = new DefaultMutableTreeNode(new UserInfo("测试1","地址1","电话1"));
DefaultMutableTreeNode stu2 = new DefaultMutableTreeNode(new UserInfo("测试2","地址2","电话2"));
DefaultMutableTreeNode stu3 = new DefaultMutableTreeNode(new UserInfo("测试3","地址3","电话3"));
home.add(stu1);home.add(stu2);home.add(stu3);
JTree tree = new JTree(home);
tree.addTreeSelectionListener(new TreeSelectionListener(){
public void valueChanged(TreeSelectionEvent e) {
JTree tree = (JTree)e.getSource();
DefaultMutableTreeNode node = (DefaultMutableTreeNode)tree.getLastSelectedPathComponent();
UserInfo user = (UserInfo)node.getUserObject();
System.out.println("姓名为:"+user.getUsername()+" 地址为:"+user.getAddress()+" 电话为:"+user.getPhone());
}
}
);
JFrame frame = new JFrame("学生管理系统示意图");
JScrollPane scrollPane = new JScrollPane(tree);
frame.getContentPane().add(scrollPane,BorderLayout.CENTER);
frame.pack();
frame.setVisible(true);
frame.setBounds(100, 100, 500, 500);
frame.setDefaultCloseOperation(frame.EXIT_ON_CLOSE);
}
public static void main(String[] args) {
try {
javax.swing.SwingUtilities.invokeAndWait(new Runnable() {
public void run() {
createUI();
}
});
} catch (InterruptedException e) {
// TODO 自动生成 catch 块
e.printStackTrace();
} catch (InvocationTargetException e) {
// TODO 自动生成 catch 块
e.printStackTrace();
}
}
}
class UserInfo {
private String username;
private String address;
private String phone;
UserInfo(String username, String address, String phone) {
this.username = username;
this.address = address;
this.phone = phone;
}
public String toString() {
return username;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
}


Client.java
package com.hmilyld;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.Socket;
import java.net.UnknownHostException;
public class Client {
public static void main(String[] args) {
try {
Socket socket = new Socket("192.168.2.93",10009);
InputStream input = socket.getInputStream();
OutputStream output = socket.getOutputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
BufferedReader readerSocket = new BufferedReader(new InputStreamReader(input));
PrintWriter writer = new PrintWriter(output);
while(true){
String temp = reader.readLine();
writer.println(temp);
writer.flush();
if(temp.equals("exit")){
break;
}
System.out.println(readerSocket.readLine());
}
socket.close();
} catch (UnknownHostException e) {
// TODO 自动生成 catch 块
e.printStackTrace();
} catch (IOException e) {
// TODO 自动生成 catch 块
e.printStackTrace();
}

}
}

server.java Continue reading ‘实现socket和server通话–多线程’