Java Applet可以运行在网页上面，实现功能是通过调用Java来获取本地硬盘信息，前提是本机必须安装Java环境才能运行，不然会提示你安装。
下面是代码：
package com.test;
import java.applet.Applet;
import java.awt.Graphics;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileWriter;
import java.io.InputStreamReader;
import java.net.InetAddress;
import java.net.NetworkInterface;
public class HardWareUtils extends Applet{
public HardWareUtils(){
}
private static final long serialVersionUID = 1L;
@Override
public void paint(Graphics paint) {
super.paint(paint);
paint.drawString("获取硬件信息", 10, 10);
paint.drawString("CPU SN:" + HardWareUtils.getCPUSerial(), 10, 30);
paint.drawString("主板 SN:" + HardWareUtils.getMotherboardSN(), 10, 50);
paint.drawString("C盘 SN:" + HardWareUtils.getHardDiskSN("c"), 10, 70);
paint.drawString("MAC SN:" + HardWareUtils.getMac(), 10, 90);
}
/**
* 获取主板序列号
*
* @return
*/
public static String getMotherboardSN() {
String result = "";
try {
File file = File.createTempFile("realhowto", ".vbs");
file.deleteOnExit();
FileWriter fw = new java.io.FileWriter(file);
String vbs = "Set objWMIService = GetObject(\"winmgmts:\\\\.\\root\\cimv2\")\n"
+ "Set colItems = objWMIService.ExecQuery _ \n"
+ " (\"Select * from Win32_BaseBoard\") \n"
+ "For Each objItem in colItems \n"
+ " Wscript.Echo objItem.SerialNumber \n"
+ " exit for ‘ do the first cpu only! \n" + "Next \n";
fw.write(vbs);
fw.close();
Process p = Runtime.getRuntime().exec(
"cscript //NoLogo " + file.getPath());
BufferedReader input = new BufferedReader(new InputStreamReader(p
.getInputStream()));
String line;
while ((line = input.readLine()) != null) {
result += line;
}
input.close();
} catch (Exception e) {
e.printStackTrace();
}
return result.trim();
}
/**
* 获取硬盘序列号
*
* @param drive
* 盘符
* @return
*/
public static String getHardDiskSN(String drive) {
String result = "";
try {
File file = File.createTempFile("realhowto", ".vbs");
file.deleteOnExit();
FileWriter fw = new java.io.FileWriter(file);
String vbs = "Set objFSO = CreateObject(\"Scripting.FileSystemObject\")\n"
+ "Set colDrives = objFSO.Drives\n"
+ "Set objDrive = colDrives.item(\""
+ drive
+ "\")\n"
+ "Wscript.Echo objDrive.SerialNumber"; // see note
fw.write(vbs);
fw.close();
Process p = Runtime.getRuntime().exec(
"cscript //NoLogo " + file.getPath());
BufferedReader input = new BufferedReader(new InputStreamReader(p
.getInputStream()));
String line;
while ((line = input.readLine()) != null) {
result += line;
}
input.close();
} catch (Exception e) {
e.printStackTrace();
}
return result.trim();
}
/**
* 获取CPU序列号
*
* @return
*/
public static String getCPUSerial() {
String result = "";
try {
File file = File.createTempFile("tmp", ".vbs");
file.deleteOnExit();
FileWriter fw = new java.io.FileWriter(file);
String vbs = "Set objWMIService = GetObject(\"winmgmts:\\\\.\\root\\cimv2\")\n"
+ "Set colItems = objWMIService.ExecQuery _ \n"
+ " (\"Select * from Win32_Processor\") \n"
+ "For Each objItem in colItems \n"
+ " Wscript.Echo objItem.ProcessorId \n"
+ " exit for ‘ do the first cpu only! \n" + "Next \n";
fw.write(vbs);
fw.close();
Process p = Runtime.getRuntime().exec(
"cscript //NoLogo " + file.getPath());
BufferedReader input = new BufferedReader(new InputStreamReader(p
.getInputStream()));
String line;
while ((line = input.readLine()) != null) {
result += line;
}
input.close();
file.delete();
} catch (Exception e) {
e.fillInStackTrace();
}
if (result.trim().length() < 1 || result == null) {
result = "无CPU_ID被读取";
}
return result.trim();
}
/**
* 获取MAC地址
*/
public static String getMac() {
try {
byte[] mac = NetworkInterface.getByInetAddress(InetAddress.getLocalHost()).getHardwareAddress();
StringBuffer sb = new StringBuffer();
for (int i = 0; i < mac.length; i++) {
if (i != 0) {
sb.append("-");
}
String s = Integer.toHexString(mac[i] & 0xFF);
sb.append(s.length() == 1 ? 0 + s : s);
}
return sb.toString().toUpperCase();
} catch (Exception e) {
return "";
}
}
}
运行效果如下：
注意：如果直接在Eclipse里面运行正常，如果嵌入到网页中想要正常获取必须进行签名。
对Java Applet进行签名的方法如下：
怎样对java小程序签名受到很多人的关注，网上也有这些方面可供参考的文档，但都不是完整，在这里我给出一份可具体操作的文档，希望能给大家一些帮助。 场景：test.jar：内含待签名的java小程序 结果：签名后，客户端能自动下载java小程序，且java小程序能访问客户端的任何资源
步骤：
(1)将java小程序打包
jar cvf test.jar test.class
(2)生成名为chinani.store的密钥库,别名为chinani
keytool -genkey -keystore chinani.store -alias chinani
密码：123456 (根据需要自己输入) 以下根据需要输入，最后确认：y
(3)导出chinani.cer数字证书
keytool -export -keystore chinani.store -alias chinani -file chinani.cer
密码：123456 (根据需要自己输入)
(4)对test.jar文件进行签名
jarsigner -keystore chinani.store test.jar chinani
密码：123456 (根据需要自己输入)
最后写一个html文件，运行此文件即可自动下载安装运行java小程序HTML文件内容如下：
<applet code=Test
archive="Test.jar"
width=320 height=300>
</applet>