常用类型转换

package com.core.util;

 

 

 

import java.text.SimpleDateFormat;

import java.util.Date;

import java.util.Random;

import java.util.regex.Matcher;

import java.util.regex.Pattern;

import java.text.ParseException;

 

import org.apache.commons.lang.StringEscapeUtils;

 

import net.sourceforge.pinyin4j.PinyinHelper;

import net.sourceforge.pinyin4j.format.HanyuPinyinOutputFormat;

import net.sourceforge.pinyin4j.format.HanyuPinyinToneType;

import net.sourceforge.pinyin4j.format.HanyuPinyinVCharType;

import net.sourceforge.pinyin4j.format.exception.BadHanyuPinyinOutputFormatCombination;

 

public class Utility {

private static final SimpleDateFormat sdf = new SimpleDateFormat(

"yyyy-MM-dd HH:mm:ss");

private static final SimpleDateFormat sdfshort = new SimpleDateFormat(

"yyyy-MM-dd");

private static final Random randoms = new Random();

/**

* yyyy-MM-dd HH:mm:ss

* 

* @param date

* @return

*/

public static String formatDate(Date date) {

if (date == null)

return "0000-00-00 00:00:00";

 

return sdf.format(date);

}

 

/**

* yyyy-MM-dd

* 

* @param date

* @return

*/

public static String shortFormatDate(Date date) {

if (date == null)

return "0000-00-00";

 

return sdfshort.format(date);

}

 

/**

* yyyy-MM-dd HH:mm:ss

* 

* @param str

* @return

* @throws ParseException

*/

public static Date parseDate(String str) {

if (str == null)

return null;

 

Date date = null;

 

try {

date = sdf.parse(str);

} catch (ParseException pe) {

}

 

return date;

}

 

/**

* 判断字符是否是数字

* 

* @param str

* @return

*/

public static boolean isNumberString(String str) {

if (str == null || str.length() == 0)

return false;

 

int i = 0;

 

while (true) {

if (i >= str.length())

break;

 

char ch = str.charAt(i);

 

if (ch > '9' || ch < '0')

break;

 

i++;

}

 

return i == str.length();

}

 

/**

* 用户名为字母、数字或下划线、并不能以数字打头和纯数字

* 

* @param userName

* @return

*/

public static boolean isUserName(String userName) {

boolean is = true;

String regEx = "^[a-zA-Z]{1}([a-zA-Z0-9]|[_]){3,15}$";

Pattern p = Pattern.compile(regEx);

Matcher m = p.matcher(userName);

is = m.find();

return is;

}

/**

* 判断是否是邮箱地址

* 

* @param eMail

* @return

*/

public static boolean isEmail(String eMail) {

boolean is = true;

String regEx = "^\\w+((-\\w+)|(\\.\\w+))*\\@[A-Za-z0-9]+((\\.|-)[A-Za-z0-9]+)*\\.[A-Za-z0-9]+$";

Pattern p = Pattern.compile(regEx);

Matcher m = p.matcher(eMail);

is = m.find();

return is;

}

/**

* 防SQL注入

* 

* @param sqlStr

* @return

*/

public static String escapeSql(String sqlStr) {

sqlStr = StringEscapeUtils.escapeSql(sqlStr);

return sqlStr;

}

/**

* 过滤request

* 

* @param sqlStr

* @return

*/

public static String requestEscape(String str) {

if (str == null) {

return null;

}

str = Utility.escapeSql(str);

return str;

}

public static String wipescript(String html) { 

Pattern pattern1 = Pattern.compile("<script[^>]+>.*<\\/script>");

Pattern pattern2 = Pattern.compile(" href *= *[\\s\\s]*script *:");

Pattern pattern3 = Pattern.compile(" on[\\s\\s]*=");

Pattern pattern4 = Pattern.compile("<iframe[\\s\\s]+</iframe *>");

Pattern pattern5 = Pattern.compile("<frameset[\\s\\s]+</frameset *>");

Matcher matcher1 = pattern1.matcher(html);

html = matcher1.replaceAll(" ");

Matcher matcher2 = pattern2.matcher(html);

html = matcher2.replaceAll(" ");

Matcher matcher3 = pattern3.matcher(html);

html = matcher3.replaceAll(" ");

Matcher matcher4 = pattern4.matcher(html);

html = matcher4.replaceAll(" ");

Matcher matcher5 = pattern5.matcher(html);

html = matcher5.replaceAll(" ");

return html; 

}

/** 生成序号 */

public static String getRedPagerNo(String str) {

String no = Utility.formatDate(new Date());

no = no.replaceAll("-", "");

no = no.replaceAll(":", "");

no = no.replaceAll(" ", "");

String sRand = "";

for (int i = 0; i < 5; i++) {

String rand = String.valueOf(randoms.nextInt(10));

sRand += rand;

}

return str + no + sRand;

}

/**

* 把汉字转换为拼音

* 

* @param input

* @return

*/

public static String toPinyin(String input) {

StringBuilder sb = new StringBuilder();

HanyuPinyinOutputFormat PINYIN_FORMAT = new HanyuPinyinOutputFormat();

PINYIN_FORMAT.setToneType(HanyuPinyinToneType.WITHOUT_TONE);

PINYIN_FORMAT.setVCharType(HanyuPinyinVCharType.WITH_V);

for (int i = 0; i < input.length(); i++) {

char c = input.charAt(i);

if (c <= 255) {

sb.append(c);

} else {

String pinyin = null;

try {

String[] pinyinArray = PinyinHelper

.toHanyuPinyinStringArray(c, PINYIN_FORMAT);

pinyin = pinyinArray[0];

} catch (BadHanyuPinyinOutputFormatCombination e) {

e.printStackTrace();

} catch (NullPointerException e) {

// 如果是日文，可能抛出该异常

e.printStackTrace();

}

if (pinyin != null) {

sb.append(pinyin);

sb.append(" ");

}

}

}

return sb.toString();

}

public static Long dateToLong(Date date) {

String strDate = formatDate(date);

strDate = strDate.replaceAll("-", "");

strDate = strDate.replaceAll(":", "");

strDate = strDate.replaceAll(" ", "");

return Long.valueOf(strDate);

}

public static void main(String[] arg) {

System.out.println(Utility.wipescript("<script>var d = 0;</script>"));

}

}