import java.util.ArrayList;
import java.util.Arrays;
import java.util.Random;
/**
* 字符随机生成类
* @author ASUS
*
*/
public class PassWord {
/**
* 密码类型枚举
* @author ASUS
*/
public static enum TYPE {
/**
* 字符型
*/
LETTER,
/**
* 大写字符型
*/
CAPITAL,
/**
* 数字型
*/
NUMBER,
/**
* 符号型
*/
SIGN,
/**
* 大+小字符 型
*/
LETTER_CAPITAL,
/**
* 小字符+数字 型
*/
LETTER_NUMBER,
/**
* 大+小字符+数字 型
*/
LETTER_CAPITAL_NUMBER,
/**
* 大+小字符+数字+符号 型
*/
LETTER_CAPITAL_NUMBER_SIGN
}
private static String[] lowercase = {
"a","b","c","d","e","f","g","h","i","j","k",
"l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"};
private static String[] capital = {
"A","B","C","D","E","F","G","H","I","J","K",
"L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"};
private static String[] number = {
"1","2","3","4","5","6","7","8","9","0"};
private static String[] sign = {
"~","!","@","#","$","%","^","&","*","(",")","_","+","`","-","=",
"{","}","|",":","\"","<",">","?",
"[","]","\\",";","'",",",".","/"};
/**
* 静态随机数
*/
private static Random random = new Random();
public static void main(String[] args) {
System.out.println(PassWord.getRandom(24, PassWord.TYPE.CAPITAL));
}
/**
* 获取随机组合码
* @param num 位数
* @param type 类型
* @type
* <br>字符型 LETTER,
* <br>大写字符型 CAPITAL,
* <br>数字型 NUMBER,
* <br>符号型 SIGN,
* <br>大+小字符型 LETTER_CAPITAL,
* <br>小字符+数字 型 LETTER_NUMBER,
* <br>大+小字符+数字 型 LETTER_CAPITAL_NUMBER,
* <br>大+小字符+数字+符号 型 LETTER_CAPITAL_NUMBER_SIGN
*/
public static String getRandom(int num,TYPE type){
ArrayList<String> temp = new ArrayList<String>();
StringBuffer code = new StringBuffer();
if(type == TYPE.LETTER){
temp.addAll(Arrays.asList(lowercase));
}else if(type == TYPE.CAPITAL){
temp.addAll(Arrays.asList(capital));
}else if(type == TYPE.NUMBER){
temp.addAll(Arrays.asList(number));
}else if(type == TYPE.SIGN){
temp.addAll(Arrays.asList(sign));
}else if(type == TYPE.LETTER_CAPITAL){
temp.addAll(Arrays.asList(lowercase));
temp.addAll(Arrays.asList(capital));
}else if(type == TYPE.LETTER_NUMBER){
temp.addAll(Arrays.asList(lowercase));
temp.addAll(Arrays.asList(number));
}else if(type == TYPE.LETTER_CAPITAL_NUMBER){
temp.addAll(Arrays.asList(lowercase));
temp.addAll(Arrays.asList(capital));
temp.addAll(Arrays.asList(number));
}else if(type == TYPE.LETTER_CAPITAL_NUMBER_SIGN){
temp.addAll(Arrays.asList(lowercase));
temp.addAll(Arrays.asList(capital));
temp.addAll(Arrays.asList(number));
temp.addAll(Arrays.asList(sign));
}
for (int i = 0; i < num; i++) {
code.append(temp.get(random.nextInt(temp.size())));
}
return code.toString();
}
}
