java常用工具类 XML工具类、数据验证工具类

本文实例为大家分享了java常用工具类的具体代码，供大家参考，具体内容如下

package com.jarvis.base.util;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.StringReader;
import java.io.StringWriter;
import java.net.URL;
import java.util.Properties;

import javax.xml.transform.OutputKeys;
import javax.xml.transform.Result;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;

import org.dom4j.Document;
import org.dom4j.Element;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.SAXReader;
import org.dom4j.io.XMLWriter;

/**
 *
 *
 * @Title: XMLHelper.java
 * @Package com.jarvis.base.util
 * @Description:XML工具类
 * @version V1.0
 */
public final class XMLHelper {
 /**
 * 把XML按照给定的XSL进行转换，返回转换后的值
 *
 * @param xml
 *   xml
 * @param xsl
 *   xsl
 * @return
 * @throws Exception
 */
 public static String xml2xsl(String xml, URL xsl) throws Exception {
 if (StringHelper.isEmpty(xml)) {
 throw new Exception("xml string is empty");
 }
 if (xsl == null) {
 throw new Exception("xsl string is empty");
 }

 StringWriter writer = new StringWriter();
 Source xmlSource = null;
 Source xslSource = null;
 Result result = null;

 try {
 xmlSource = new StreamSource(new StringReader(xml));
 xslSource = new StreamSource(xsl.openStream());
 result = new StreamResult(writer);

 TransformerFactory transFact = TransformerFactory.newInstance();
 Transformer trans = transFact.newTransformer(xslSource);
 trans.transform(xmlSource, result);
 return writer.toString();
 } catch (Exception ex) {
 throw new Exception(ex);
 } finally {
 writer.close();
 writer = null;
 xmlSource = null;
 xslSource = null;
 result = null;
 }
 }

 /**
 * 把XML按用户定义好的XSL样式进行输出
 *
 * @param xmlFilePath
 *   XML文档
 * @param xsl
 *   XSL样式
 * @return 样式化后的字段串
 */
 public static String xml2xsl(String xmlFilePath, String xsl) throws Exception {
 if (StringHelper.isEmpty(xmlFilePath)) {
 throw new Exception("xml string is empty");
 }
 if (StringHelper.isEmpty(xsl)) {
 throw new Exception("xsl string is empty");
 }

 StringWriter writer = new StringWriter();
 Source xmlSource = new StreamSource(new File(xmlFilePath));
 Source xslSource = new StreamSource(new File(xsl));
 Result result = new StreamResult(writer);

 try {
 TransformerFactory transFact = TransformerFactory.newInstance();
 Transformer trans = transFact.newTransformer(xslSource);
 Properties properties = trans.getOutputProperties();
 properties.setProperty(OutputKeys.ENCODING, "UTF-8");
 properties.put(OutputKeys.METHOD, "html");
 trans.setOutputProperties(properties);

 trans.transform(xmlSource, result);
 return writer.toString();
 } finally {
 writer.close();
 writer = null;

 xmlSource = null;
 xslSource = null;
 result = null;
 }
 }

 /**
 * 读取XML文档，返回Document对象.<br>
 *
 * @param xmlFile
 *   XML文件路径
 * @return Document 对象
 */
 public static Document getDocument(String xmlFile) throws Exception {
 if (StringHelper.isEmpty(xmlFile)) {
 return null;
 }

 File file = null;
 SAXReader saxReader = new SAXReader();

 file = new File(xmlFile);
 return saxReader.read(file);
 }

 /**
 * 读取XML文档，返回Document对象.<br>
 *
 * @param xmlFile
 *   file对象
 * @return Document 对象
 */
 public static Document getDocument(File xmlFile) {
 try {
 SAXReader saxReader = new SAXReader();
 return saxReader.read(xmlFile);
 } catch (Exception ex) {
 ex.printStackTrace();
 System.err.println("读取xml文件出错，返回null");
 return null;
 }
 }

 /**
 * 读取XML字串，返回Document对象
 *
 * @param xmlString
 *   XML文件路径
 * @return Document 对象
 */
 public static Document getDocumentFromString(String xmlString) {
 if (StringHelper.isEmpty(xmlString)) {
 return null;
 }
 try {
 SAXReader saxReader = new SAXReader();
 return saxReader.read(new StringReader(xmlString));
 } catch (Exception ex) {
 ex.printStackTrace();
 System.err.println("读取xml文件出错，返回null");
 return null;
 }
 }

 /**
 * 描述：把xml输出成为html 作者： 时间：Oct 29, 2008 4:57:56 PM
 *
 * @param xmlDoc
 *   xmlDoc
 * @param xslFile
 *   xslFile
 * @param encoding
 *   编码
 * @return
 * @throws Exception
 */
 public static String xml2html(String xmlDoc, String xslFile, String encoding) throws Exception {
 if (StringHelper.isEmpty(xmlDoc)) {
 throw new Exception("xml string is empty");
 }
 if (StringHelper.isEmpty(xslFile)) {
 throw new Exception("xslt file is empty");
 }

 StringWriter writer = new StringWriter();
 Source xmlSource = null;
 Source xslSource = null;
 Result result = null;
 String html = null;
 try {
 xmlSource = new StreamSource(new StringReader(xmlDoc));
 xslSource = new StreamSource(new File(xslFile));

 result = new StreamResult(writer);

 TransformerFactory transFact = TransformerFactory.newInstance();
 Transformer trans = transFact.newTransformer(xslSource);
 Properties properties = trans.getOutputProperties();
 properties.put(OutputKeys.METHOD, "html");
 properties.setProperty(OutputKeys.ENCODING, encoding);
 trans.setOutputProperties(properties);

 trans.transform(xmlSource, result);

 html = writer.toString();
 writer.close();

 return html;
 } catch (Exception ex) {
 throw new Exception(ex);
 } finally {
 writer = null;

 xmlSource = null;
 xslSource = null;
 result = null;
 }
 }

 /**
 * 描述：把xml输出成为html
 *
 * @param xmlFile
 *   xmlFile
 * @param xslFile
 *   xslFile
 * @param encoding
 *   编码
 * @return
 * @throws Exception
 */
 public static String xmlFile2html(String xmlFile, String xslFile, String encoding) throws Exception {
 if (StringHelper.isEmpty(xmlFile)) {
 throw new Exception("xml string is empty");
 }
 if (StringHelper.isEmpty(xslFile)) {
 throw new Exception("xslt file is empty");
 }

 StringWriter writer = new StringWriter();
 Source xmlSource = null;
 Source xslSource = null;
 Result result = null;
 String html = null;
 try {
 xmlSource = new StreamSource(new File(xmlFile));
 xslSource = new StreamSource(new File(xslFile));

 result = new StreamResult(writer);

 TransformerFactory transFact = TransformerFactory.newInstance();
 Transformer trans = transFact.newTransformer(xslSource);
 Properties properties = trans.getOutputProperties();
 properties.put(OutputKeys.METHOD, "html");
 properties.setProperty(OutputKeys.ENCODING, encoding);
 trans.setOutputProperties(properties);

 trans.transform(xmlSource, result);

 html = writer.toString();
 writer.close();

 return html;
 } catch (Exception ex) {
 throw new Exception(ex);
 } finally {
 writer = null;

 xmlSource = null;
 xslSource = null;
 result = null;
 }
 }

 /**
 * 描述：
 *
 * @param name
 *   名
 * @param element
 *   元素
 * @return
 */
 public static String getString(String name, Element element) {
 return (element.valueOf(name) == null) ? "" : element.valueOf(name);
 }

 /**
 * 将一个XML文档保存至文件中.
 *
 * @param doc
 *   要保存的XML文档对象.
 * @param filePath
 *   要保存到的文档路径.
 * @param format
 *   要保存的输出格式
 * @return true代表保存成功，否则代表不成功.
 */
 public static boolean savaToFile(Document doc, String filePathName, OutputFormat format) {
 XMLWriter writer;
 try {
 String filePath = FileHelper.getFullPath(filePathName);
 // 若目录不存在，则建立目录
 if (!FileHelper.exists(filePath)) {
 if (!FileHelper.createDirectory(filePath)) {
  return false;
 }
 }

 writer = new XMLWriter(new FileWriter(new File(filePathName)), format);
 writer.write(doc);
 writer.close();
 return true;
 } catch (IOException ex) {
 ex.printStackTrace();
 System.err.println("写文件出错");
 }

 return false;
 }

 /**
 * 将一个XML文档保存至文件中.
 *
 * @param filePath
 *   要保存到的文档路径.
 * @param doc
 *   要保存的XML文档对象.
 * @return true代表保存成功，否则代表不成功.
 */
 public static boolean writeToXml(String filePathName, Document doc) {
 OutputFormat format = OutputFormat.createCompactFormat();
 format.setEncoding("UTF-8");
 return savaToFile(doc, filePathName, format);
 }
}

数据验证工具类

package com.jarvis.base.util;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * 说明: 常用的数据验证工具类。
 *
 */
public class ValidateUtil {

 public static final Pattern CODE_PATTERN = Pattern.compile("^0\\d{2,4}$");
 public static final Pattern POSTCODE_PATTERN = Pattern.compile("^\\d{6}$");
 public static final Pattern BANK_CARD_PATTERN = Pattern.compile("^\\d{16,30}$");
 /**
  * 匹配图象
  *
  *
  * 格式: /相对路径/文件名.后缀 (后缀为gif,dmp,png)
  *
  * 匹配 : /forum/head_icon/admini2005111_ff.gif 或 admini2005111.dmp
  *
  *
  * 不匹配: c:/admins4512.gif
  *
  */
  public static final String ICON_REGEXP = "^(/{0,1}//w){1,}//.(gif|dmp|png|jpg)$|^//w{1,}//.(gif|dmp|png|jpg)$"; 

  /**
  * 匹配email地址
  *
  *
  * 格式: XXX@XXX.XXX.XX
  *
  * 匹配 : foo@bar.com 或 foobar@foobar.com.au
  *
  * 不匹配: foo@bar 或 $$$@bar.com
  *
  */
  public static final String EMAIL_REGEXP = "(?://w[-._//w]*//w@//w[-._//w]*//w//.//w{2,3}$)"; 

  /**
  * 匹配并提取url
  *
  *
  * 格式: XXXX://XXX.XXX.XXX.XX/XXX.XXX?XXX=XXX
  *
  * 匹配 : http://www.suncer.com 或news://www
  *
  * 不匹配: c:/window
  *
  */
  public static final String URL_REGEXP = "(//w+)://([^/:]+)(://d*)?([^#//s]*)"; 

  /**
  * 匹配并提取http
  *
  * 格式: http://XXX.XXX.XXX.XX/XXX.XXX?XXX=XXX 或 ftp://XXX.XXX.XXX 或
  * https://XXX
  *
  * 匹配 : http://www.suncer.com:8080/index.html?login=true
  *
  * 不匹配: news://www
  *
  */
  public static final String HTTP_REGEXP = "(http|https|ftp)://([^/:]+)(://d*)?([^#//s]*)"; 

  /**
  * 匹配日期
  *
  *
  * 格式(首位不为0): XXXX-XX-XX或 XXXX-X-X
  *
  *
  * 范围:1900--2099
  *
  *
  * 匹配 : 2005-04-04
  *
  *
  * 不匹配: 01-01-01
  *
  */
  public static final String DATE_BARS_REGEXP = "^((((19){1}|(20){1})\\d{2})|\\d{2})-[0,1]?\\d{1}-[0-3]?\\d{1}$"; 

  /**
  * 匹配日期
  *
  *
  * 格式: XXXX/XX/XX
  *
  *
  * 范围:
  *
  *
  * 匹配 : 2005/04/04
  *
  *
  * 不匹配: 01/01/01
  *
  */
  public static final String DATE_SLASH_REGEXP = "^[0-9]{4}/(((0[13578]|(10|12))/(0[1-9]|[1-2][0-9]|3[0-1]))|(02-(0[1-9]|[1-2][0-9]))|((0[469]|11)/(0[1-9]|[1-2][0-9]|30)))$"; 

  /**
  * 匹配电话
  *
  *
  * 格式为: 0XXX-XXXXXX(10-13位首位必须为0) 或0XXX XXXXXXX(10-13位首位必须为0) 或
  *
  * (0XXX)XXXXXXXX(11-14位首位必须为0) 或 XXXXXXXX(6-8位首位不为0) 或
  * XXXXXXXXXXX(11位首位不为0)
  *
  *
  * 匹配 : 0371-123456 或 (0371)1234567 或 (0371)12345678 或 010-123456 或
  * 010-12345678 或 12345678912
  *
  *
  * 不匹配: 1111-134355 或 0123456789
  *
  */
  public static final String PHONE_REGEXP = "^(?:0[0-9]{2,3}[-//s]{1}|//(0[0-9]{2,4}//))[0-9]{6,8}$|^[1-9]{1}[0-9]{5,7}$|^[1-9]{1}[0-9]{10}$"; 

  /**
  * 匹配身份证
  *
  * 格式为: XXXXXXXXXX(10位) 或 XXXXXXXXXXXXX(13位) 或 XXXXXXXXXXXXXXX(15位) 或
  * XXXXXXXXXXXXXXXXXX(18位)
  *
  * 匹配 : 0123456789123
  *
  * 不匹配: 0123456
  *
  */
  public static final String ID_CARD_REGEXP = "^//d{10}|//d{13}|//d{15}|//d{18}$"; 

  /**
  * 匹配邮编代码
  *
  * 格式为: XXXXXX(6位)
  *
  * 匹配 : 012345
  *
  * 不匹配: 0123456
  *
  */
  public static final String ZIP_REGEXP = "^[0-9]{6}$";// 匹配邮编代码 

  /**
  * 不包括特殊字符的匹配 (字符串中不包括符号 数学次方号^ 单引号' 双引号" 分号; 逗号, 帽号: 数学减号- 右尖括号> 左尖括号< 反斜杠/
  * 即空格,制表符,回车符等 )
  *
  * 格式为: x 或 一个一上的字符
  *
  * 匹配 : 012345
  *
  * 不匹配: 0123456 // ;,:-<>//s].+$";//
  */
  public static final String NON_SPECIAL_CHAR_REGEXP = "^[^'/";
  // 匹配邮编代码 

  /**
  * 匹配非负整数（正整数 + 0)
  */
  public static final String NON_NEGATIVE_INTEGERS_REGEXP = "^//d+$"; 

  /**
  * 匹配不包括零的非负整数（正整数 > 0)
  */
  public static final String NON_ZERO_NEGATIVE_INTEGERS_REGEXP = "^[1-9]+//d*$"; 

  /**
  *
  * 匹配正整数
  *
  */
  public static final String POSITIVE_INTEGER_REGEXP = "^[0-9]*[1-9][0-9]*$"; 

  /**
  *
  * 匹配非正整数（负整数 + 0）
  *
  */
  public static final String NON_POSITIVE_INTEGERS_REGEXP = "^((-//d+)|(0+))$"; 

  /**
  *
  * 匹配负整数
  *
  */
  public static final String NEGATIVE_INTEGERS_REGEXP = "^-[0-9]*[1-9][0-9]*$"; 

  /**
  *
  * 匹配整数
  *
  */
  public static final String INTEGER_REGEXP = "^-?//d+$"; 

  /**
  *
  * 匹配非负浮点数（正浮点数 + 0）
  *
  */
  public static final String NON_NEGATIVE_RATIONAL_NUMBERS_REGEXP = "^//d+(//.//d+)?$"; 

  /**
  *
  * 匹配正浮点数
  *
  */
  public static final String POSITIVE_RATIONAL_NUMBERS_REGEXP = "^(([0-9]+//.[0-9]*[1-9][0-9]*)|([0-9]*[1-9][0-9]*//.[0-9]+)|([0-9]*[1-9][0-9]*))$"; 

  /**
  *
  * 匹配非正浮点数（负浮点数 + 0）
  *
  */
  public static final String NON_POSITIVE_RATIONAL_NUMBERS_REGEXP = "^((-//d+(//.//d+)?)|(0+(//.0+)?))$"; 

  /**
  *
  * 匹配负浮点数
  *
  */
  public static final String NEGATIVE_RATIONAL_NUMBERS_REGEXP = "^(-(([0-9]+//.[0-9]*[1-9][0-9]*)|([0-9]*[1-9][0-9]*//.[0-9]+)|([0-9]*[1-9][0-9]*)))$"; 

  /**
  *
  * 匹配浮点数
  *
  */
  public static final String RATIONAL_NUMBERS_REGEXP = "^(-?//d+)(//.//d+)?$"; 

  /**
  *
  * 匹配由26个英文字母组成的字符串
  *
  */
  public static final String LETTER_REGEXP = "^[A-Za-z]+$"; 

  /**
  *
  * 匹配由26个英文字母的大写组成的字符串
  *
  */
  public static final String UPWARD_LETTER_REGEXP = "^[A-Z]+$"; 

  /**
  *
  * 匹配由26个英文字母的小写组成的字符串
  *
  */
  public static final String LOWER_LETTER_REGEXP = "^[a-z]+$"; 

  /**
  *
  * 匹配由数字和26个英文字母组成的字符串
  *
  */
  public static final String LETTER_NUMBER_REGEXP = "^[A-Za-z0-9]+$"; 

  /**
  *
  * 匹配由数字、26个英文字母或者下划线组成的字符串
  *
  */
  public static final String LETTER_NUMBER_UNDERLINE_REGEXP = "^//w+$"; 

 public static boolean validateEmail(String str) {
 if (str == null || str.trim().length() == 0) {
 return false;
 }
 Pattern pattern = Pattern.compile(
 "^([\\w-\\.]+)@((\\[[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.)|(([\\w-]+\\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\\]?)$");

 // Pattern pattern =
 // Pattern.compile("^([a-zA-Z0-9_-])+@(([a-zA-z0-9]-*){1,}\\.){1,3}[a-zA-z\\-]{1,}");
 Matcher matcher = pattern.matcher(str);

 return matcher.matches();

 }

 public static boolean validateMoblie(String str) {
 if (str == null || str.trim().length() == 0) {
 return false;
 }
 Pattern pattern = Pattern.compile("^(13|14|15|17|18)[0-9]{9}$");
 Matcher matcher = pattern.matcher(str);

 return matcher.matches();

 }

 /**
  * 验证区号是否有效.
  *
  * @param code 要验证的区号
  * @return 是否正确身份证
  */
 public static boolean validateCode(String code) {
  if (StringHelper.isEmpty(code)) {
   return false;
  }
  Matcher m = CODE_PATTERN.matcher(code);
  return m.matches();
 }

 /**
  * 验证邮政编码是否有效.
  *
  * @param postcode 要验证的邮政编码
  * @return 是否正确邮政编码
  */
 public static boolean validatePostcode(String postcode) {
  if (StringHelper.isEmpty(postcode)) {
   return false;
  }
  Matcher m = POSTCODE_PATTERN.matcher(postcode);
  return m.matches();
 }

 /**
  * 验证银行卡是否有效.
  *
  * @param bankCardNumber 要验证的银行卡号
  * @return 是否正确银行卡号
  */
 public static boolean validateBankCardNumber(String bankCardNumber) {
  if (StringHelper.isEmpty(bankCardNumber)) {
   return false;
  }
  Matcher m = BANK_CARD_PATTERN.matcher(bankCardNumber);
  return m.matches();
 }

 /**
  * 通过身份证获取生日
  *
  * @param idNumber 身份证号
  * @return 返回生日, 格式为 yyyy-MM-dd 的字符串
  */
 public static String getBirthdayByIdNumber(String idNumber) {

  String birthday = "";

  if (idNumber.length() == 15) {
   birthday = "19" + idNumber.substring(6, 8) + "-" + idNumber.substring(8, 10) + "-" + idNumber.substring(10, 12);
  } else if (idNumber.length() == 18) {
   birthday = idNumber.substring(6, 10) + "-" + idNumber.substring(10, 12) + "-" + idNumber.substring(12, 14);
  }

  return birthday;

 }

 /**
  * 通过身份证获取性别
  *
  * @param idNumber 身份证号
  * @return 返回性别, 0 保密 , 1 男 2 女
  */
 public static Integer getGenderByIdNumber(String idNumber) {

  int gender = 0;

  if (idNumber.length() == 15) {
   gender = Integer.parseInt(String.valueOf(idNumber.charAt(14))) % 2 == 0 ? 2 : 1;
  } else if (idNumber.length() == 18) {
   gender = Integer.parseInt(String.valueOf(idNumber.charAt(16))) % 2 == 0 ? 2 : 1;
  }

  return gender;

 }

 /**
  * 通过身份证获取年龄
  *
  * @param idNumber  身份证号
  * @param isNominalAge 是否按元旦算年龄，过了1月1日加一岁 true : 是 false : 否
  * @return 返回年龄
  */
 public static Integer getAgeByIdNumber(String idNumber, boolean isNominalAge) {

  String birthString = getBirthdayByIdNumber(idNumber);
  if (StringHelper.isEmpty(birthString)) {
   return 0;
  }

  return getAgeByBirthString(birthString, isNominalAge);

 }

 /**
  * 通过生日日期获取年龄
  *
  * @param birthDate 生日日期
  * @return 返回年龄
  */
 public static Integer getAgeByBirthDate(Date birthDate) {

  return getAgeByBirthString(new SimpleDateFormat("yyyy-MM-dd").format(birthDate));

 }

 /**
  * 通过生日字符串获取年龄
  *
  * @param birthString 生日字符串
  * @return 返回年龄
  */
 public static Integer getAgeByBirthString(String birthString) {

  return getAgeByBirthString(birthString, "yyyy-MM-dd");

 }

 /**
  * 通过生日字符串获取年龄
  *
  * @param birthString 生日字符串
  * @param isNominalAge 是否按元旦算年龄，过了1月1日加一岁 true : 是 false : 否
  * @return 返回年龄
  */
 public static Integer getAgeByBirthString(String birthString, boolean isNominalAge) {

  return getAgeByBirthString(birthString, "yyyy-MM-dd", isNominalAge);

 }

 /**
  * 通过生日字符串获取年龄
  *
  * @param birthString 生日字符串
  * @param format  日期字符串格式,为空则默认"yyyy-MM-dd"
  * @return 返回年龄
  */
 public static Integer getAgeByBirthString(String birthString, String format) {
  return getAgeByBirthString(birthString, "yyyy-MM-dd", false);
 }

 /**
  * 通过生日字符串获取年龄
  *
  * @param birthString 生日字符串
  * @param format  日期字符串格式,为空则默认"yyyy-MM-dd"
  * @param isNominalAge 是否按元旦算年龄，过了1月1日加一岁 true : 是 false : 否
  * @return 返回年龄
  */
 public static Integer getAgeByBirthString(String birthString, String format, boolean isNominalAge) {
  int age = 0;
  if (StringHelper.isEmpty(birthString)) {
   return age;
  }
  if (StringHelper.isEmpty(format)) {
   format = "yyyy-MM-dd";
  }
  try {

   Calendar birthday = Calendar.getInstance();
   Calendar today = Calendar.getInstance();
   SimpleDateFormat sdf = new SimpleDateFormat(format);
   birthday.setTime(sdf.parse(birthString));
   age = today.get(Calendar.YEAR) - birthday.get(Calendar.YEAR);
   if (!isNominalAge) {
    if (today.get(Calendar.MONTH) < birthday.get(Calendar.MONTH) ||
      (today.get(Calendar.MONTH) == birthday.get(Calendar.MONTH) &&
        today.get(Calendar.DAY_OF_MONTH) < birthday.get(Calendar.DAY_OF_MONTH))) {
     age = age - 1;
    }
   }
  } catch (ParseException e) {
   e.printStackTrace();
  }

  return age;

 }

 /**
  * 大小写敏感的正规表达式批配
  *
  * @param source
  *   批配的源字符串
  * @param regexp
  *   批配的正规表达式
  * @return 如果源字符串符合要求返回真,否则返回假
  */
 public static boolean isHardRegexpValidate(String str, String regexp) {
  if (str == null || str.trim().length() == 0) {
 return false;
 }
   Pattern pattern = Pattern.compile(regexp);
  Matcher matcher = pattern.matcher(str);
  return matcher.matches();
 } 

}

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