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
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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) < 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();
}
}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创新互联。
