/**
* 根据虚拟机类型生成随机Mac地址
*
* @param hypervType 虚拟机类型
* KVM: QEMU虚拟机
* vmware: Vmware虚拟机
* 其他： 生成随机的Mac地址
* @return
*/
private String createRandomMacAddress(String hypervType){
String macAddress = null;
if ("QEMU".equalsIgnoreCase(hypervType)){//根据不同的虚拟化类型生成前缀
String prefix = "52:54:00";
macAddress = prefix.concat(":").concat(getRandChars(3));
} else {
macAddress = getRandChars(6);
}
return macAddress;
}
/**
* 生成 2个随机的小写字母或者数字组成的串
*
* @return
*/
private static String getRandChars(int len){
String multiChars = "";
for (int i=0;i<len;i++){
multiChars = multiChars.concat(":");
String chars = getRandTwoChars();
multiChars = multiChars.concat(chars);
}
if (len > 0){
multiChars = multiChars.substring(1);
}
return multiChars;
}
/**
* 生成2个随机的小写字母或者数字
*
* @return
*/
private static String getRandTwoChars(){
String chars = createRandomChar();
return chars.concat(createRandomChar());
}
/**
* 生成随机的小写字母或者数字
*
* @return 随机的小写字母或者数字
*/
private static String createRandomChar(){
String[] chars= new String[]{
"a","b","c","d","e","f","0",
"1","2","3","4","5","6","7","8","9",
};
Random rand = new Random();
int rInt = rand.nextInt(chars.length);
return chars[rInt];
}
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