- * 判断字符串是否为空. 为空条件:全角\半角\tab 等没有实际意义的字符. - * 具体参看{@link Character#isWhitespace(char)}对空格的定义. - *
- * - *
- * StringUtils.isBlank(" ") = true 为半角空格
- * StringUtils.isBlank(" ") = true 为全角空格
- * StringUtils.isBlank(" ") = true 为tab键
- *
- *
- * @param str
- * 字符串
- * @return true 字符串为空 ,false 不为空
- */
- public static boolean strIsBlank(String str) {
- int strLen;
- if (str == null || (strLen = str.length()) == 0) {
- return true;
- }
- for (int i = 0; i < strLen; i++) {
- if ((Character.isWhitespace(str.charAt(i)) == false)) {
- return false;
- }
- }
- return true;
- }
-
- /**
- * 截取转义页面字符串
- * @param str
- * @param len
- * @return
- */
- public static String stringFormat(String str,int len){
- if(str==null||str.trim().equals("")||str.trim().equals("null")){
- return "";
- }
-
- if(len!=-1){
- try {
- StringBuilder sb = new StringBuilder();
- int currentLength = 0;
- for (char c : str.toCharArray()) {
- currentLength += String.valueOf(c).getBytes("GBK").length;
- if (currentLength <= len - 3) {
- sb.append(c);
- } else {
- sb.append("...");
- break;
- }
- }
- return Encodes.escapeHtml(sb.toString());
- } catch (UnsupportedEncodingException e) {
- e.printStackTrace();
- }
- }
- return str;
- }
-
- public static String revertStr(String str,String regex){
- String[] split = str.split(regex);
- String value = "";
- for (int i = split.length-1; i >= 0 ; i--) {
- if( i != 0) {
- value += split[i]+"/";
- }else {
- value += split[i];
- }
-
- }
- return value;
- }
-}
+/**
+ * Copyright © 2012-2014 JeeSite All rights reserved.
+ */
+package com.nis.util;
+
+import java.io.UnsupportedEncodingException;
+import java.util.List;
+import java.util.Locale;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import javax.servlet.http.HttpServletRequest;
+
+import org.apache.commons.lang3.StringEscapeUtils;
+import org.springframework.web.context.request.RequestContextHolder;
+import org.springframework.web.context.request.ServletRequestAttributes;
+import org.springframework.web.servlet.LocaleResolver;
+
+import com.ckfinder.connector.ServletContextFactory;
+import com.google.common.collect.Lists;
+import com.nis.web.service.SpringContextHolder;
+
+/**
+ * 字符串工具类, 继承org.apache.commons.lang3.StringUtils类
+ *
+ * @author ThinkGem
+ * @version 2013-05-22
+ */
+public class StringUtils extends org.apache.commons.lang3.StringUtils {
+
+ private static final char SEPARATOR = '_';
+ private static final String CHARSET_NAME = "UTF-8";
+ public static final String HASH_ALGORITHM = "SHA-1";
+ public static final int HASH_INTERATIONS = 1024;
+ public static final int SALT_SIZE = 8;
+
+ /**
+ * 转换为字节数组
+ *
+ * @param str
+ * @return
+ */
+ public static byte[] getBytes(String str) {
+ if (str != null) {
+ try {
+ return str.getBytes(CHARSET_NAME);
+ } catch (UnsupportedEncodingException e) {
+ return null;
+ }
+ } else {
+ return null;
+ }
+ }
+
+ /**
+ * 转换为字节数组
+ *
+ * @param str
+ * @return
+ */
+ public static String toString(byte[] bytes) {
+ try {
+ return new String(bytes, CHARSET_NAME);
+ } catch (UnsupportedEncodingException e) {
+ return EMPTY;
+ }
+ }
+
+ /**
+ * 是否包含字符串
+ *
+ * @param str
+ * 验证字符串
+ * @param strs
+ * 字符串组
+ * @return 包含返回true
+ */
+ public static boolean inString(String str, String... strs) {
+ if (str != null) {
+ for (String s : strs) {
+ if (str.equals(trim(s))) {
+ return true;
+ }
+ }
+ }
+ return false;
+ }
+
+ /**
+ * 替换掉HTML标签方法
+ */
+ public static String replaceHtml(String html) {
+ if (isBlank(html)) {
+ return "";
+ }
+ String regEx = "<.+?>";
+ Pattern p = Pattern.compile(regEx);
+ Matcher m = p.matcher(html);
+ String s = m.replaceAll("");
+ return s;
+ }
+
+ /**
+ * 替换为手机识别的HTML，去掉样式及属性，保留回车。
+ *
+ * @param html
+ * @return
+ */
+ public static String replaceMobileHtml(String html) {
+ if (html == null) {
+ return "";
+ }
+ return html.replaceAll("<([a-z]+?)\\s+?.*?>", "<$1>");
+ }
+
+ /**
+ * 替换为手机识别的HTML，去掉样式及属性，保留回车。
+ *
+ * @param txt
+ * @return
+ */
+ public static String toHtml(String txt) {
+ if (txt == null) {
+ return "";
+ }
+ return replace(replace(Encodes.escapeHtml(txt), "\n", "
"), "\t", " ");
+ }
+
+ /**
+ * 缩略字符串（不区分中英文字符）
+ *
+ * @param str
+ * 目标字符串
+ * @param length
+ * 截取长度
+ * @return
+ */
+ public static String abbr(String str, int length) {
+ if (str == null) {
+ return "";
+ }
+ try {
+ StringBuilder sb = new StringBuilder();
+ int currentLength = 0;
+ for (char c : replaceHtml(StringEscapeUtils.unescapeHtml4(str)).toCharArray()) {
+ currentLength += String.valueOf(c).getBytes("GBK").length;
+ if (currentLength <= length - 3) {
+ sb.append(c);
+ } else {
+ sb.append("...");
+ break;
+ }
+ }
+ return sb.toString();
+ } catch (UnsupportedEncodingException e) {
+ e.printStackTrace();
+ }
+ return "";
+ }
+
+ public static String abbr2(String param, int length) {
+ if (param == null) {
+ return "";
+ }
+ StringBuffer result = new StringBuffer();
+ int n = 0;
+ char temp;
+ boolean isCode = false; // 是不是HTML代码
+ boolean isHTML = false; // 是不是HTML特殊字符,如
+ for (int i = 0; i < param.length(); i++) {
+ temp = param.charAt(i);
+ if (temp == '<') {
+ isCode = true;
+ } else if (temp == '&') {
+ isHTML = true;
+ } else if (temp == '>' && isCode) {
+ n = n - 1;
+ isCode = false;
+ } else if (temp == ';' && isHTML) {
+ isHTML = false;
+ }
+ try {
+ if (!isCode && !isHTML) {
+ n += String.valueOf(temp).getBytes("GBK").length;
+ }
+ } catch (UnsupportedEncodingException e) {
+ e.printStackTrace();
+ }
+
+ if (n <= length - 3) {
+ result.append(temp);
+ } else {
+ result.append("...");
+ break;
+ }
+ }
+ // 取出截取字符串中的HTML标记
+ String temp_result = result.toString().replaceAll("(>)[^<>]*(]*/?>",
+ "");
+ // 去掉成对的HTML标记
+ temp_result = temp_result.replaceAll("<([a-zA-Z]+)[^<>]*>(.*?)", "$2");
+ // 用正则表达式取出标记
+ Pattern p = Pattern.compile("<([a-zA-Z]+)[^<>]*>");
+ Matcher m = p.matcher(temp_result);
+ List endHTML = Lists.newArrayList();
+ while (m.find()) {
+ endHTML.add(m.group(1));
+ }
+ // 补全不成对的HTML标记
+ for (int i = endHTML.size() - 1; i >= 0; i--) {
+ result.append("");
+ }
+ return result.toString();
+ }
+
+ /**
+ * 转换为Double类型
+ */
+ public static Double toDouble(Object val) {
+ if (val == null) {
+ return 0D;
+ }
+ try {
+ return Double.valueOf(trim(val.toString()));
+ } catch (Exception e) {
+ return 0D;
+ }
+ }
+
+ /**
+ * 转换为Float类型
+ */
+ public static Float toFloat(Object val) {
+ return toDouble(val).floatValue();
+ }
+
+ /**
+ * 转换为Long类型
+ */
+ public static Long toLong(Object val) {
+ return toDouble(val).longValue();
+ }
+
+ /**
+ * 转换为Integer类型
+ */
+ public static Integer toInteger(Object val) {
+ return toLong(val).intValue();
+ }
+
+ /**
+ * 获得i18n字符串
+ */
+ public static String getMessage(String code, Object[] args) {
+ LocaleResolver localLocaleResolver = (LocaleResolver) SpringContextHolder.getBean(LocaleResolver.class);
+ HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes())
+ .getRequest();
+ Locale localLocale = localLocaleResolver.resolveLocale(request);
+ return SpringContextHolder.getApplicationContext().getMessage(code, args, localLocale);
+ }
+
+ /**
+ * 获得用户远程地址
+ */
+ public static String getRemoteAddr(HttpServletRequest request) {
+ String remoteAddr = request.getHeader("X-Real-IP");
+ if (isBlank(remoteAddr)) {
+ remoteAddr = request.getHeader("X-Forwarded-For");
+ } else if (isBlank(remoteAddr)) {
+ remoteAddr = request.getHeader("Proxy-Client-IP");
+ } else if (isBlank(remoteAddr)) {
+ remoteAddr = request.getHeader("WL-Proxy-Client-IP");
+ }
+ return remoteAddr != null ? remoteAddr : request.getRemoteAddr();
+ }
+
+ /**
+ * 驼峰命名法工具
+ *
+ * @return toCamelCase("hello_world") == "helloWorld"
+ * toCapitalizeCamelCase("hello_world") == "HelloWorld"
+ * toUnderScoreCase("helloWorld") = "hello_world"
+ */
+ public static String toCamelCase(String s) {
+ if (s == null) {
+ return null;
+ }
+
+ s = s.toLowerCase();
+
+ StringBuilder sb = new StringBuilder(s.length());
+ boolean upperCase = false;
+ for (int i = 0; i < s.length(); i++) {
+ char c = s.charAt(i);
+
+ if (c == SEPARATOR) {
+ upperCase = true;
+ } else if (upperCase) {
+ sb.append(Character.toUpperCase(c));
+ upperCase = false;
+ } else {
+ sb.append(c);
+ }
+ }
+
+ return sb.toString();
+ }
+
+ /**
+ * 驼峰命名法工具
+ *
+ * @return toCamelCase("hello_world") == "helloWorld"
+ * toCapitalizeCamelCase("hello_world") == "HelloWorld"
+ * toUnderScoreCase("helloWorld") = "hello_world"
+ */
+ public static String toCapitalizeCamelCase(String s) {
+ if (s == null) {
+ return null;
+ }
+ s = toCamelCase(s);
+ return s.substring(0, 1).toUpperCase() + s.substring(1);
+ }
+
+ /**
+ * 驼峰命名法工具
+ *
+ * @return toCamelCase("hello_world") == "helloWorld"
+ * toCapitalizeCamelCase("hello_world") == "HelloWorld"
+ * toUnderScoreCase("helloWorld") = "hello_world"
+ */
+ public static String toUnderScoreCase(String s) {
+ if (s == null) {
+ return null;
+ }
+
+ StringBuilder sb = new StringBuilder();
+ boolean upperCase = false;
+ for (int i = 0; i < s.length(); i++) {
+ char c = s.charAt(i);
+
+ boolean nextUpperCase = true;
+
+ if (i < (s.length() - 1)) {
+ nextUpperCase = Character.isUpperCase(s.charAt(i + 1));
+ }
+
+ if ((i > 0) && Character.isUpperCase(c)) {
+ if (!upperCase || !nextUpperCase) {
+ sb.append(SEPARATOR);
+ }
+ upperCase = true;
+ } else {
+ upperCase = false;
+ }
+
+ sb.append(Character.toLowerCase(c));
+ }
+
+ return sb.toString();
+ }
+
+ /**
+ * 如果不为空，则设置值
+ *
+ * @param target
+ * @param source
+ */
+ public static void setValueIfNotBlank(String target, String source) {
+ if (isNotBlank(source)) {
+ target = source;
+ }
+ }
+
+ /**
+ * 转换为JS获取对象值，生成三目运算返回结果
+ *
+ * @param objectString
+ * 对象串 例如：row.user.id
+ * 返回：!row?'':!row.user?'':!row.user.id?'':row.user.id
+ */
+ public static String jsGetVal(String objectString) {
+ StringBuilder result = new StringBuilder();
+ StringBuilder val = new StringBuilder();
+ String[] vals = split(objectString, ".");
+ for (int i = 0; i < vals.length; i++) {
+ val.append("." + vals[i]);
+ result.append("!" + (val.substring(1)) + "?'':");
+ }
+ result.append(val.substring(1));
+ return result.toString();
+ }
+
+ /**
+ * 生成安全的密码，生成随机的16位salt并经过1024次 sha-1 hash
+ */
+ public static String entryptPassword(String plainPassword) {
+ byte[] salt = Digests.generateSalt(SALT_SIZE);
+ byte[] hashPassword = Digests.sha1(plainPassword.getBytes(), salt, HASH_INTERATIONS);
+ return Encodes.encodeHex(salt) + Encodes.encodeHex(hashPassword);
+ }
+
+ /**
+ * 验证密码
+ *
+ * @param plainPassword
+ * 明文密码
+ * @param password
+ * 密文密码
+ * @return 验证成功返回true
+ */
+ public static boolean validatePassword(String plainPassword, String password) {
+ byte[] salt = Encodes.decodeHex(password.substring(0, 16));
+ byte[] hashPassword = Digests.sha1(plainPassword.getBytes(), salt, HASH_INTERATIONS);
+ return password.equals(Encodes.encodeHex(salt) + Encodes.encodeHex(hashPassword));
+ }
+
+ /**
+ * 获取上传文件的根目录
+ *
+ * @return
+ */
+ public static String getUserfilesBaseDir() {
+ String dir = Configurations.getStringProperty("userfiles.basedir", "");
+ try {
+ if (StringUtils.isBlank(dir)) {
+ dir = ServletContextFactory.getServletContext().getRealPath("/");
+ } else {
+ dir = ServletContextFactory.getServletContext().getRealPath("/") + dir;
+ }
+ } catch (Exception e) {
+ return "";
+ }
+
+ if (!dir.endsWith("/")) {
+ dir += "/";
+ }
+ return dir;
+ }
+
+ /**
+ *
+ *
+ * 判断字符串是否为空. 为空条件:全角\半角\tab 等没有实际意义的字符.
+ * 具体参看{@link Character#isWhitespace(char)}对空格的定义.
+ *
+ *
+ *
+ * StringUtils.isBlank(" ") = true 为半角空格
+ * StringUtils.isBlank(" ") = true 为全角空格
+ * StringUtils.isBlank(" ") = true 为tab键
+ *
+ *
+ * @param str
+ * 字符串
+ * @return true 字符串为空 ,false 不为空
+ */
+ public static boolean strIsBlank(String str) {
+ int strLen;
+ if (str == null || (strLen = str.length()) == 0) {
+ return true;
+ }
+ for (int i = 0; i < strLen; i++) {
+ if ((Character.isWhitespace(str.charAt(i)) == false)) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ /**
+ * 截取转义页面字符串
+ * @param str
+ * @param len
+ * @return
+ */
+ public static String stringFormat(String str,int len){
+ if(str==null||str.trim().equals("")||str.trim().equals("null")){
+ return "";
+ }
+
+ if(len!=-1){
+ try {
+ StringBuilder sb = new StringBuilder();
+ int currentLength = 0;
+ for (char c : str.toCharArray()) {
+ currentLength += String.valueOf(c).getBytes("GBK").length;
+ if (currentLength <= len - 3) {
+ sb.append(c);
+ } else {
+ sb.append("...");
+ break;
+ }
+ }
+ return Encodes.escapeHtml(sb.toString());
+ } catch (UnsupportedEncodingException e) {
+ e.printStackTrace();
+ }
+ }
+ return str;
+ }
+
+ public static String revertStr(String str,String regex){
+ String[] split = str.split(regex);
+ String value = "";
+ for (int i = split.length-1; i >= 0 ; i--) {
+ if( i != 0) {
+ value += split[i]+"/";
+ }else {
+ value += split[i];
+ }
+
+ }
+ return value;
+ }
+}