java常用工具类 XML工具类、数据验证工具类

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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.
* * @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.
* * @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) 

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持html中文网。

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