From 56d71f261a8bd6031e47e2bf80867049a2aa13da Mon Sep 17 00:00:00 2001 From: chenjinsong Date: Thu, 27 Sep 2018 16:11:54 +0800 Subject: initial commit --- src/com/nis/nmsclient/util/StringUtil.java | 528 +++++++++++++++++++++++++++++ 1 file changed, 528 insertions(+) create mode 100644 src/com/nis/nmsclient/util/StringUtil.java (limited to 'src/com/nis/nmsclient/util/StringUtil.java') diff --git a/src/com/nis/nmsclient/util/StringUtil.java b/src/com/nis/nmsclient/util/StringUtil.java new file mode 100644 index 0000000..cf0b551 --- /dev/null +++ b/src/com/nis/nmsclient/util/StringUtil.java @@ -0,0 +1,528 @@ +/* + * @(#)StringUtil.java 1.0 + * + * Copyright 2010 NIS, Inc. All rights reserved. + * + */ +package com.nis.nmsclient.util; + +import java.io.UnsupportedEncodingException; +import java.net.URLDecoder; +import java.net.URLEncoder; +import java.security.MessageDigest; +import java.util.Collection; +import java.util.Map; +import java.util.UUID; + +import sun.misc.BASE64Encoder; + + +/** +* +*

字符串处理工具类.

+* @author 中科智源育成信息有限公司 E-mail: doufengh@software.ict.ac.cn +* @version 1.0 创建时间：Nov 2, 2010 2:57:56 PM +* +*/ +public final class StringUtil { + /** + * ISO8859_1 编码集 + */ + public static final String CODE_ISO8859_1 = "ISO8859_1"; + /** + * GB2312 编码集 + */ + public static final String CODE_GB2312 = "GB2312"; + /** + * GBK 编码集 + */ + public static final String CODE_GBK = "GBK"; + /** + * UTF-8 编码集 + */ + public static final String CODE_UTF_8 = "UTF-8"; + + private static int size = 0; + + private static final String[] SIMPLIFIED_CASE = { "O", "一", "二", "三", "四", "五", + "六", "七", "八", "九", "十" }; +// private static final String[] SIMPLIFIED_CASE = { "Zero", "One", "Two", "Three", "Four", "Five", +// "Six", "Seven", "Eight", "Nine", "Ten" }; + + private static final String[] TRADITIONAL_CASE = { "零", "壹", "贰", "叁", "肆", "伍", + "陆", "柒", "捌", "玖", "拾" }; +// private static final String[] TRADITIONAL_CASE = { "Zero", "One", "Two", "Three", "Four", "Five", +// "Six", "Seven", "Eight", "Nine", "Ten" }; + + /** + *

Description:抑制默认的构造器,避免实例化对象

+ */ + private StringUtil() { + + } + + /** + * + *

判断一个对象是否为空

+ *

+ * object元素判断所有对象是否为空. + * 另外对{@link String}、{@link Collection} 、{@link Map} 进行长度验证,如果长度为0,视为空对象. + *

+ * 
+	* String aa = " ";
+	* List list = new ArrayList()
+	* LinkedHashSet set = new LinkedHashSet();
+	* StringUtil.isEmpty(aa) = true
+	* StringUtil.isEmpty(list) = true
+	* StringUtil.isEmpty(set) = true
+	* StringUtil.isEmpty("\t") = true
+	*
+ * @param object 对象元素 + * @return true 对象为null,false 对象不为null. + */ + public static boolean isEmpty(Object object) { + initSize(object); + return size==0; + + } + + + /** + * + * 判断对象是否有数据存在? 不存在为0、存在不为0的值. + * @param object 对象值 + */ + private static void initSize(Object object){ + + if (object == null) { + size = 0; + } else { + if (object instanceof String) { + size = ((String)object).trim().length(); + } else if (object instanceof Collection) { + size = ((Collection)object).size(); + } else if (object instanceof Map) { + size = ((Map)object).size(); + //其他数据类型 + } else { + size = 1; + } + + } + + } + + /** + * + *

如果对象为空时,返回默认值.

+ * @param object 要判断是否为空的对象 + * @param defaultValue 为空时设的默认值 + * @see #isEmpty(Object) + * @return 获取处理后的数据 + */ + public static Object setDefaultValueIfNull(Object object,Object defaultValue){ + if(isEmpty(object)){ + return defaultValue; + } + return object; + } + + /** + * + *

对字符串进行MD5加密.

+ *

+ * 一般作为密码的处理方式,首先通过MD5进行加密，然后将字符串进行Base64编码获得所需字符. + *

+ * 
+	* String str = "ceshi";
+	* StringUtil.md5(str) = "zBfDDNERxyFfyPUfh5Dg4Q=="
+	*
+ * @param msg 要加密的字符串 + * @return 返回加密后的25位字符,如果解析出现异常将返回null. + */ + public static String md5(String msg) { + try { + MessageDigest md = MessageDigest.getInstance("MD5"); + byte[] b = md.digest(msg.getBytes()); + BASE64Encoder encoder = new BASE64Encoder(); + String code = encoder.encode(b); + return code; + } catch (Exception e) { + return null; + } + + } + + /** + *

截取处理字符串,当字符串超过指定的截取长度时,用“......”补充

+ * 
+	* String str = "中华人民共和国";
+	* StringUtil.getMoreString(str, 6) = "中华人民共和......"
+	*
+ * @param text 字符串数据 + * @param length 截取的长度值 + * @return 返回处理后字符 + */ + public static String getMoreString(String text,int length){ + StringBuilder textBuilder = new StringBuilder(); + + if(isEmpty(text)){ + return null; + } + if(text.length()>length){ + text = text.substring(0,length); + textBuilder.append(text).append("......"); + }else { + textBuilder.append(text); + } + + + return textBuilder.toString(); + } + + + /** + * + *

通过给定url获取域名地址.

+ *

+ * 获得域名信息需去除 http/https/ftp 与 www 一些头信息,获取有效地址. + *

+ * 
+	* StringUtil.getDomain("http://www.baidu.com") = "baidu.com"
+	*
+ * @param webSiteUrl url 地址 + * @return 返回截取后的域名地址 + */ + public static String getDomain(String webSiteUrl) { + String url = ""; + + if(isEmpty(webSiteUrl)){ + return url; + } + + + if (webSiteUrl.indexOf("http://") >= 0) { + url = webSiteUrl.substring("http://".length(), webSiteUrl.length()); + } else if (webSiteUrl.indexOf("https://", 0) >= 0) { + url = webSiteUrl.substring("https://".length(), webSiteUrl.length()); + } else if (webSiteUrl.indexOf("ftp://", 0) >= 0) { + url = webSiteUrl.substring("ftp://".length(), webSiteUrl.length()); + } else { + url = webSiteUrl; + } + + if (url.indexOf("/", 0) >= 0) { + url = url.substring(0, url.indexOf("/", 1)); + } + if (url.indexOf("www.") == 0) { + url = url.substring(url.indexOf(".") + 1, url.length()); + } + if (url.indexOf("?") >= 0) { + url = url.substring(0, url.indexOf("?")); + } + + return url; + } + + /** + * + *

按照给定规则分隔字符串

+ * 
例子说明:
+ * @param str 需要分隔的字符串 + * @param regex 分隔规则 + * @return 返回字符串数组,如果分隔字符串为空返回null. + */ + public static String[] Split(String str,String regex) { + + if(StringUtil.isEmpty(str)){ + return null; + } + + return str.split(regex); + + } + + /** + * + *

字符编码转换，需要提供字符串的源编码格式.

+ *

+ * 字符串工具类中提供一些字符编码常量： + * {@link #CODE_GB2312}\{@link #CODE_GBK}\{@link #CODE_ISO8859_1}\{@link #CODE_UTF_8} + *

+ * @param value 要编码的值 + * @param sourceCodingFormat 字符的原始编码格式,具体编码格式可看本类提供的编码样式. + * @param destCodingFormat 要转换字符的编码格式,具体编码格式可看本类提供的编码样式. + * @return 返回编码后的字符串. + * @throws UnsupportedEncodingException + */ + public static String getCodingConversionResult(String value,String sourceCodingFormat, + String destCodingFormat ) throws UnsupportedEncodingException{ + + if(isEmpty(value)){ + return null; + } + + + return new String(value.getBytes(sourceCodingFormat), destCodingFormat); + } + + /** + * + *

将url转为utf编码格式url,当url符合utf8格式,不会转换.

+ * 
+	* StringUtil.getUTF8URLEncode("http://www.baidu.com/s?param='中国'") = 
+	*   "http%3A%2F%2Fwww.baidu.com%2Fs%3Fparam%3D%27%E4%B8%AD%E5%9B%BD%27"
+	*
+ * @see #getUTF8URLDecode(String) + * @param url 字符串url + * @return 返回utf8转换后的字符url + * @throws UnsupportedEncodingException + */ + public static String getUTF8URLEncode(String url)throws UnsupportedEncodingException{ + if(isUtf8Url(url)){ + return url; + } + + return URLEncoder.encode(url, StringUtil.CODE_UTF_8); + + } + + /** + * + *

将utf8编码的url解析为原始url.当url不符合utf8格式时,不转换.

+ * 
例子说明:
+ * @see #getUTF8URLEncode(String) + * @param url 字符串url + * @return 返回解析后字符url + * @throws UnsupportedEncodingException + */ + + public static String getUTF8URLDecode(String url)throws UnsupportedEncodingException{ + + /*if(!isUtf8Url(url)){ + return url; + }*/ + + return URLDecoder.decode(url, StringUtil.CODE_UTF_8); + + } + + + /** * 编码是否有效 + * @param text + * @return + */ + private static boolean Utf8codeCheck(String text){ + String sign = ""; + if (text.startsWith("%e")){ + + for (int i = 0, p = 0; p != -1; i++) { + p = text.indexOf("%", p); + + if (p != -1){ + p++; + } + sign += p; + } + } + + return sign.equals("147-1"); + } + + /** + * 是否Utf8Url编码 + * @param text + * @return true or false + */ + private static boolean isUtf8Url(String text) { + text = text.toLowerCase(); + int p = text.indexOf("%"); + + if (p != -1 && text.length() - p > 9) { + text = text.substring(p, p + 9); + } + + return Utf8codeCheck(text); + } + + + /** + * + *

判断字符串是否是数字格式(包括小数形式).

+ * 
+    * String a1 = "12";
+	* String a2 = "0.01";
+	* String a3 = "0.0.1";
+	* String a4 = "123a";
+	* StringUtil.isNumeric(a1) = true
+	* StringUtil.isNumeric(a2) = true
+	* StringUtil.isNumeric(a3) = false
+	* StringUtil.isNumeric(a4) = false
+    *
+ * @param numberString 数字格式字符串 + * @return true 符合数字格式(包括小数),false 不符合数字格式. + */ + public static boolean isNumeric(String numberString){ + + if(isEmpty(numberString)){ + return false; + } + + if(numberString.startsWith(".")||numberString.endsWith(".")){ + return false; + } + + int length = numberString.split("\\.").length-1; //判断小数点在字符串中出现的次数。 + + + if(length>1) { //小数点大于1次，不符合数字规范 + + return false; + } + + + for(int i=0; i将字符串数字转换为简体大写中文格式.

+ * 
+    * StringUtil.convertSimplifiedCase("325") = ”三二五"
+    *
+ * @param numberString 数字字符串 + * @return 返回简体大写后的数字 + */ + public static String convertSimplifiedCase(String numberString) { + + StringBuilder simplifiedBuilder = new StringBuilder(); + + if(isEmpty(numberString)){ + return null; + } + + + for (int i = 0; i < numberString.length(); i++) { + String tempNumberString = String.valueOf(numberString.charAt(i)); + if ("0123456789".indexOf(tempNumberString) >= 0) { + int number = Integer.parseInt(tempNumberString); + simplifiedBuilder.append(SIMPLIFIED_CASE[number]); + } else { + simplifiedBuilder.append(tempNumberString); + } + } + + return simplifiedBuilder.toString(); + } + + + /** + * + *

把字符串中的数字转换成繁体大写中文的格式.

+ * 
+    * StringUtil.convertTraditionalCase("325") = "叁贰伍"
+    *
+ * @param numberString 数字字符串 + * @return 返回繁体大写后的数字 + */ + public static String convertTraditionalCase(String numberString) { + + StringBuilder simplifiedBuilder = new StringBuilder(); + + if(isEmpty(numberString)){ + return null; + } + + + for (int i = 0; i < numberString.length(); i++) { + String tempNumberString = String.valueOf(numberString.charAt(i)); + if ("0123456789".indexOf(tempNumberString) >= 0) { + int number = Integer.parseInt(tempNumberString); + simplifiedBuilder.append(TRADITIONAL_CASE[number]); + } else { + simplifiedBuilder.append(tempNumberString); + } + } + + return simplifiedBuilder.toString(); + } + + /** + * + *

创建唯一标识字符串.

+ * 
+   * StringUtil.createUUID() = "00000DAF3CFC4E0B8DF2D5BEACB14D75" 
+   *
+ * @return 返回标识符字符串 + */ + public static String createUUID() { + String uuid = UUID.randomUUID().toString(); + uuid = uuid.replace("-", ""); + return uuid.toUpperCase(); + } + + + /** + * + *

字符串过滤,负责将html的textarea属性获得的字符转换成html格式的字符集.

+ * @param str 要解析的字符串 + * @return 是解析后的字符串 + */ + public static String htmlFilter(String str) { + StringBuffer stringbuffer = new StringBuffer(); + for (int i = 0; i < str.length(); i++) { + char c = str.charAt(i); + switch (c) { + + case 39: + stringbuffer.append("'"); + break; + + case 34: + stringbuffer.append("""); + break; + + case 60: + stringbuffer.append("<"); + break; + + case 62: + stringbuffer.append(">"); + break; + + case 38: + stringbuffer.append("&"); + break; + + case 32: + stringbuffer.append(" "); + break; + + case 10: + stringbuffer.append("
"); + break; + + case 8220: + stringbuffer.append("“"); + break; + + case 8221: + stringbuffer.append("”"); + break; + + default: + stringbuffer.append(c); + break; + } + } + + return stringbuffer.toString(); + } + +} -- cgit v1.2.3