Java EE（J2EE）快速开发框架jeexjj，基于主流技术（Springboot、Spring MVC、MyBatis、

package com.xjj.framework.utils; /** * @author xjj */ import java.io.UnsupportedEncodingException; import java.net.URLEncoder; import java.text.DecimalFormat; import java.text.NumberFormat; import java.util.ArrayList; import java.util.Date; import java.util.HashMap; import java.util.HashSet; import java.util.List; import java.util.Map; import java.util.Set; import java.util.Vector; import java.util.regex.Matcher; import java.util.regex.Pattern; import org.apache.log4j.Logger; public class StringUtils { /** * Logger for this class */ private static final Logger logger = Logger.getLogger(StringUtils.class); /** * 将字符串转化为中文编码gb2312，默认输入的格式为iso-8859-1 * * @param strInput * 输入字符串 * @return */ public static String convertToChinese(String strInput) { return convertToChinese(strInput, "iso-8859-1"); } /** * 将字符串转化为中文编码gb2312 * * @param strInput * 输入文本 * @param srcEncode * 输入的格式 * @return */ public static String convertToChinese(String strInput, String srcEncode) { String str = ""; try { str = new String(strInput.getBytes(srcEncode), "gb2312"); } catch (Exception e) { logger.error(e.getMessage()); return strInput; } return str; } /** * 将列表中的文本前后加入指定字符 * * @param list * 字符串列表 * @param appStr * 添加的指定字符 * @return */ public static List<String> appendAll(List<String> list, String appStr) { List<String> tmpList = new ArrayList<String>(); ; for (String str : list) { str = appStr + str + appStr; tmpList.add(str); } return tmpList; } /** * 将列表中的文本前面加入指定字符 * * @param list * 字符串列表 * @param appStr * 添加的指定字符 * @return */ public static List<String> appendFore(List<String> list, String appStr) { List<String> tmpList = new ArrayList<String>(); ; for (String str : list) { str = appStr + str; tmpList.add(str); } return tmpList; } /** * 将列表中的文本后面加入指定字符 * * @param list * 字符串列表 * @param appStr * 添加的指定字符 * @return */ public static List<String> appendBack(List<String> list, String appStr) { List<String> tmpList = new ArrayList<String>(); ; for (String str : list) { str = str + appStr; tmpList.add(str); } return tmpList; } /** * 将列表中的字符串合并 * * @param list * 列表 * @param delim * 分隔符 * @return */ public static String join(List<String> list, String delim) { if (list == null || list.size() < 1) { return null; } if (delim == null) { delim = ""; } StringBuffer buf = new StringBuffer(); for (String str : list) { buf.append(str); buf.append(delim); } return buf.toString().substring(0, buf.toString().lastIndexOf(delim)); } /** * 将列表中的字符串合并 * * @param list * 列表 * @return */ public static String join(Object... list) { if (list == null || list.length == 0) { return ""; } StringBuilder builder = new StringBuilder(); for (Object c : list) { builder.append(c); } return builder.toString(); } /** * 将字符窜拆成数组 * * @param str * 带拆分的字符串 * @param delim * 分隔符 * @return */ public static String[] splitToArray(String str, String delim) { if (delim == null || delim.equals("")) delim = ","; String[] ret = new String[] {}; if (str == null || str.equals("")) { return ret; } if (str.indexOf(delim) < 0) { return new String[] { str.trim() }; } Vector<String> splitList = new Vector<String>(); for (String s : str.split(delim)) { String trimmed = s.trim(); if (trimmed.length() > 0) splitList.add(trimmed); } return splitList.toArray(ret); } /** * 将字符窜拆成List列表 * * @param str * 带拆分的字符串 * @param delim * 分隔符 * @return */ public static List<String> splitToList(String str, String delim) { if (delim == null || delim.equals("")) delim = ","; List<String> splitList = new ArrayList<String>(); for (String s : str.split(delim)) { String trimmed = s.trim(); if (trimmed.length() > 0) splitList.add(trimmed); } return splitList; } /** * 将字符窜拆成Set * * @param str * 带拆分的字符串 * @param delim * 分隔符 * @return */ public static Set<String> splitToSet(String str, String delim) { if (delim == null || delim.equals("")) delim = ","; Set<String> splitSet = new HashSet<String>(); ; for (String s : str.split(delim)) { String trimmed = s.trim(); if (trimmed.length() > 0) splitSet.add(trimmed); } return splitSet; } /** * 截断过长的以空格分割的单词 * * @param str * 被截断的字符串 * @param maxLength * 最大长度 * @return */ public static String createBreaks(String str, int maxLength) { char chars[] = str.toCharArray(); int len = chars.length; StringBuffer buf = new StringBuffer(len); int count = 0; int cur = 0; for (int i = 0; i < len; i++) { if (Character.isWhitespace(chars[i])) { count = 0; } if (count >= maxLength) { count = 0; buf.append(chars, cur, i - cur).append(" "); cur = i; } count++; } buf.append(chars, cur, len - cur); return buf.toString(); } /** * 格式化SQL语句标志 * * @param str * @return */ public static String escapeSQLTags(String str) { if (str == null || str.length() == 0) { return str; } StringBuffer buf = new StringBuffer(); char ch = ' '; for (int i = 0; i < str.length(); i++) { ch = str.charAt(i); if (ch == '\\') { buf.append("\\\\"); } else if (ch == '\'') { buf.append("\'\'"); } else { buf.append(ch); } } return buf.toString(); } /** * 格式化html文本，将html文本进行编码 * * @param str * @return */ public static String escapeHTMLTags(String str) { if (str == null || str.length() == 0) { return str; } StringBuffer buf = new StringBuffer(); char ch = ' '; for (int i = 0; i < str.length(); i++) { ch = str.charAt(i); if (ch == '<') { buf.append("&lt;"); } else if (ch == '>') { buf.append("&gt;"); } else if (ch == '&') { buf.append("&amp;"); } else if (ch == '"') { buf.append("&quot;"); } else if (ch == ' ') { buf.append("&nbsp;"); } else { buf.append(ch); } } return buf.toString(); } /** * 反格式化html文本，将html中的编码转化为对应格式 * * @param str * @return */ public static String toHTMLTags(String str) { if (str == null || str.length() == 0) { return str; } return str.replaceAll("&lt;", "<").replaceAll("&gt;", ">") .replaceAll("&amp;", "&").replaceAll("&quot;", "\"") .replaceAll("&nbsp;", " "); } /** * 将换行转换为html标签 * * @param str * @return */ public static String convertNewlines(String str) { str = replace(str, "\r\n", "<P>"); str = replace(str, "\n", "<BR>"); return str; } /** * 替换字符串中的字符 * * @param str * 待替换的字符串 * @param oldString * 旧字符 * @param newString * 新字符 * @return */ public static String replace(String str, String oldString, String newString) { if (str == null) { return null; } int i = str.lastIndexOf(oldString); if (i < 0) { return str; } StringBuffer mainSb = new StringBuffer(str); while (i >= 0) { mainSb.replace(i, i + oldString.length(), newString); i = str.lastIndexOf(oldString, i - 1); } return mainSb.toString(); } /** * 检�