标签：
1、字符串达到多长才截取
2、将指定的对象转换为String类型
3、转换字符,用于替换提交的数据中存在非法数据:"‘"
4、对标题""转换为中文“”采用对应转换
5、替换HTML标记
6、标题中含有特殊字符替换 如:●▲@◎※ 主要在标题中使用
7、替换所有英文字母
8、替换所有数字
9、将/n转换成为回车<br> ,空格转为
10、清除所有<>标记符号 主要在搜索中显示文字内容 而不显示样式
11、清楚WOrd垃圾代码
12、判断传入的字符串如果为null则返回"",否则返回其本身
13、获取百分比
package com.xwtech.uomp.base.util;
import java.io.UnsupportedEncodingException;
import java.text.NumberFormat;
import java.util.HashMap;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import com.xwtech.uomp.base.action.handler.HandlerResult;
import com.xwtech.uomp.base.constants.SystemCodeConstants;
public class StringUtil {
public static final String arrTest[] = {"[br]", "[/b]", "[/i]", "[/u]", "[/size]", "[/color]", "[/align]", "[/url]", "[/email]", "[/img]"};
public static final String arrParam[] = {"\\[br\\]", "\\[b\\](.+?)\\[/b\\]",
"\\[i\\](.+?)\\[/i\\]",
"\\[u\\](.+?)\\[/u\\]",
"\\[size=(.+?)\\](.+?)\\[/size\\]",
"\\[color=(.+?)\\](.+?)\\[/color\\]",
"\\[align=(.+?)\\](.+?)\\[/align\\]",
"\\[url=(.+?)\\](.+?)\\[/url\\]",
"\\[email=(.+?)\\](.+?)\\[/email\\]," +
"\\[img=(.+?)\\](.+?)\\[/img\\]"};
public static final String arrCode[] = {"<br>", "<b>$1</b>", "<i>$1</i>", "<u>$1</u>",
"<font size=\"$1\">$2</font>",
"<font color=\"$1\">$2</font>",
"<div align=\"$1\">$2</div>",
"<a href=\"$1\" target=\"_blank\">$2</a>",
"<a href=\"email:$1\">$2</a>",
"<img src=\"$1\" border=0>$2</img>"};
public static int getInt(String content) {
int intContent;
try {
intContent = Integer.parseInt(content);
} catch (Exception e) {
intContent = 0;
}
return intContent;
}
public static long getLong(String content) {
long lngContent;
try {
lngContent = Long.parseLong(content);
} catch (Exception e) {
lngContent = 0L;
}
return lngContent;
}
/** 1
* @param str 原字符串
* @param length 字符串达到多长才截取
* @return
*/
@SuppressWarnings("static-access")
public static String subStringToPoint(String str, int length, String more) {
String reStr = "";
if (str.length() * 2 - 1 > length) {
int reInt = 0;
if (str == null)
return "";
char[] tempChar = str.toCharArray();
for (int kk = 0; (kk < tempChar.length && length > reInt); kk++) {
String s1 = str.valueOf(tempChar[kk]);
byte[] b = s1.getBytes();
reInt += b.length;
reStr += tempChar[kk];
}
if (length == reInt || (length == reInt - 1)) {
if (!reStr.equals(str)) {
reStr += more;
}
}
} else {
reStr = str;
}
return reStr;
}
/** 2
* 将指定的对象转换为String类型
*
* @param curObject 传入对象参数
* @return String
*/
public static String getString(Object curObject) {
if (null == curObject) {
throw new NullPointerException("The input object is null.");
} else {
return curObject.toString();
}
}
/** 3
* 转换字符,用于替换提交的数据中存在非法数据:"'"
*
* @param Content
* @return
*/
public static String replaceChar(String content) {
String newstr = "";
newstr = content.replaceAll("\'", "''");
return newstr;
}
/**4
* 对标题""转换为中文“”采用对应转换
*
* @param Content
* @return
*/
public static String replaceSymbol(String content) {
int intPlaceNum = 0;
int Num = 0;
String strContent = content;
while (true) {
//判断是否还存在"
intPlaceNum = strContent.indexOf("\"");
if (intPlaceNum < 0) {
break;
} else {
if (Num % 2 == 0) {
strContent = strContent.replaceFirst("\"", "“");
} else {
strContent = strContent.replaceFirst("\"", "”");
}
Num = Num + 1;
}
}
return strContent;
}
/**5
* 替换HTML标记
*
* @param Content
* @return
*/
public static String replaceCharToHtml(String content) {
String strContent = content;
strContent = strContent.replaceAll("<", "<");
strContent = strContent.replaceAll(">", ">");
strContent = strContent.replaceAll("\"", """);
return strContent;
}
public static String replaceHtmlToChar(String content) {
String strContent = content;
strContent = strContent.replaceAll("<", "<");
strContent = strContent.replaceAll(">", ">");
strContent = strContent.replaceAll(""", "\"");
return strContent;
}
//数据库替换
public static String replaceCharToSql(String content) {
String strContent = content;
strContent = strContent.replaceAll("%", "\\\\%");
return strContent;
}
public static String toHtmlValue(String value) {
if (null == value) {
return null;
}
char a = 0;
StringBuffer buf = new StringBuffer();
for (int i = 0; i < value.length(); i++) {
a = value.charAt(i);
switch (a) {
// 双引号
case 34:
buf.append(""");
break;
// &号
case 38:
buf.append("&");
break;
// 单引号
case 39:
buf.append("'");
break;
// 小于号
case 60:
buf.append("<");
break;
// 大于号
case 62:
buf.append(">");
break;
default:
buf.append(a);
break;
}
}
return buf.toString();
}
/**6
* 标题中含有特殊字符替换 如:●▲@◎※ 主要在标题中使用
*
* @param Content
* @return
*/
public static String replaceSign(String content) {
String strContent = "";
strContent = content.replaceAll("\\*", "");
strContent = strContent.replaceAll("\\$", "");
strContent = strContent.replaceAll("\\+", "");
String arrStr[] = {":", "：", "●", "▲", "■", "@", "＠",
"◎", "★", "※", "＃", "〓", "＼", "§", "☆",
"○", "◇", "◆", "□", "△", "＆", "＾", "￣",
"＿", "♂", "♀", "Ю", "┭", "①", "「", "」", "≮", "§",
"￡", "∑", "『", "』", "⊙", "∷", "Θ", "の", "↓", "↑",
"Ф", "~", "Ⅱ", "∈", "┣", "┫", "╋", "┇", "┋", "→",
"←", "!", "Ж", "#"};
for (int i = 0; i < arrStr.length; i++) {
if ((strContent.indexOf(arrStr[i])) >= 0) {
strContent = strContent.replaceAll(arrStr[i], "");
}
}
return strContent;
}
/**7
* 替换所有英文字母
*
* @param Content
* @return
*/
public static String replaceLetter(String content) {
String strMark = "[^[A-Za-z]+$]";
String strContent = "";
strContent = content.replaceAll(strMark, "");
return strContent;
}
/**8
* 替换所有数字
*
* @param Content
* @return
*/
public static String replaceNumber(String content) {
String strMark = "[^[0-9]+$]";
String strContent = "";
strContent = content.replaceAll(strMark, "");
return strContent;
}
/**9
* 将/n转换成为回车<br> ,空格转为
*
* @param Content
* @return
*/
public static String replaceBr(String content) {
if (content == null) {
return "";
}
String strContent = "";
// String strMark ="[/\n\r\t]";
//strContent = content.replaceAll(strMark,"<br>");
strContent = content.replaceAll("\n\r\t", "<br>");
strContent = strContent.replaceAll("\n\r", "<br>");
strContent = strContent.replaceAll("\r\n", "<br>");
strContent = strContent.replaceAll("\n", "<br>");
strContent = strContent.replaceAll("\r", "<br>");
strContent = strContent.replaceAll(" ", " ");
return strContent;
}
/**10
* 清除所有<>标记符号 主要在搜索中显示文字内容 而不显示样式
*
* @param Content
* @return
*/
public static String replaceMark(String content) {
String strContent = "";
String strMark = "<\\s*[^>]*>";
strContent = content.trim();
strContent = strContent.replaceAll("\"", "");
strContent = strContent.replaceAll("\'", "");
//删除所有<>标记
strContent = strContent.replaceAll(strMark, "");
strContent = strContent.replaceAll(" ", "");
strContent = strContent.replaceAll(" ", "");
strContent = strContent.replaceAll(" ", "");
strContent = strContent.replaceAll("\r", "");
strContent = strContent.replaceAll("\n", "");
strContent = strContent.replaceAll("\r\n", "");
return strContent;
}
/**11
* 清楚WOrd垃圾代码
*
* @param Content
* @return
*/
public static String clearWord(String content) {
String strContent = "";
strContent = content.trim();
strContent = strContent.replaceAll("x:str", "");
//Remove Style attributes
strContent = strContent.replaceAll("<(\\w[^>]*) style=\"([^\"]*)\"", "<$1");
//Remove all SPAN tags
strContent = strContent.replaceAll("<\\/?SPAN[^>]*>", "");
//Remove Lang attributes
strContent = strContent.replaceAll("<(\\w[^>]*) lang=([^ |>]*)([^>]*)", "<$1$3");
//Remove Class attributes
strContent = strContent.replaceAll("<(\\w[^>]*) class=([^ |>]*)([^>]*)", "<$1$3");
//Remove XML elements and declarations
strContent = strContent.replaceAll("<\\\\?\\?xml[^>]*>", "");
//Remove Tags with XML namespace declarations: <o:p></o:p>
strContent = strContent.replaceAll("<\\/?\\w+:[^>]*>", "");
return strContent;
}
/**
* 对组ID信息进行处理 转换为标准ID组 并过滤重复的信息
*
* @param teamId
* @return
*/
public static String checkTeamId(String teamId) {
String strTeamId = "";
String strTempId = "";
String strTemp = "";
String[] arrTeamId = teamId.split(",");
for (int num = 0; num < arrTeamId.length; num++) {
strTemp = arrTeamId[num].trim();
if ((!strTemp.equals("")) && (!strTemp.equals("0"))) {
if ((strTempId.indexOf("," + strTemp + ",")) >= 0) { //表示已经保存过了
} else {
if (strTeamId.equals("")) {
strTeamId = strTemp;
strTempId = strTempId + "," + strTemp + ",";
;
} else {
strTeamId = strTeamId + "," + strTemp;
strTempId = strTempId + strTemp + ",";
}
}
}
}
return strTeamId;
}
public static String replaceUbb(String content) {
String strContent = content;
try {
for (int num = 0; num < arrTest.length; num++) {
if ((strContent.indexOf(arrTest[num])) >= 0) {
try {
strContent = strContent.replaceAll(arrParam[num], arrCode[num]);
} catch (Exception ex) {
}
}
}
} catch (Exception e) {
//System.out.println("UBB CODE 错误"+e);
}
return strContent;
}
/**12
* 判断传入的字符串如果为null则返回"",否则返回其本身
*
* @param string
* @param instant
* @return String
*/
public static String convertNull(String string, String instant) {
return isNull(string) ? instant : string;
}
/**
* {@link #convertNull(String, String)}
*
* @param string
* @return String
*/
public static String convertNull(String string) {
return convertNull(string, "");
}
/**
* 判断对象是否为空
*
* @param obj Object
* @return boolean 空返回true,非空返回false
*/
public static boolean isNull(Object obj) {
return (null == obj) ? true : false;
}
/**
* Description:判断字段空null <br>
*
* @param s
* @return boolean
*/
public static boolean isNull(String s) {
if (s == null || "".equals(s.trim())) {
return true;
}
return false;
}
/**13
* 获取百分比
*
* @param p1
* @param p2
* @return
*/
public static String percent(double p1, double p2) {
if (p2 == 0) {
return "0.00%";
}
String str;
double p3 = p1 / p2;
NumberFormat nf = NumberFormat.getPercentInstance();
nf.setMinimumFractionDigits(2);
str = nf.format(p3);
return str;
}
/**
* 字符串编码转换的实现方法
*
* @param str 待转换编码的字符串
* @param oldCharset 原编码
* @param newCharset 目标编码
* @return
* @throws UnsupportedEncodingException
*/
public static String changeCharset(String str, String oldCharset, String newCharset) {
try {
if (str != null) {
//用旧的字符编码解码字符串。解码可能会出现异常。
byte[] bs = str.getBytes(oldCharset);
//用新的字符编码生成字符串
return new String(bs, newCharset);
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
return "";
}
return "";
}
/**
* 字符串编码转换的实现方法
*
* @param str 待转换编码的字符串
* @param newCharset 目标编码
* @return
* @throws UnsupportedEncodingException
*/
public String changeCharset(String str, String newCharset) {
try {
if (str != null) {
//用默认字符编码解码字符串。
byte[] bs = str.getBytes();
//用新的字符编码生成字符串
return new String(bs, newCharset);
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
return "";
}
/**
* 解析html中的参数信息
*
* @param elementStr
* @return
*/
public static Map<String, String> getConfigValue(String elementStr) {
try {
elementStr = java.net.URLDecoder.decode(elementStr, "utf-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
int start = elementStr.indexOf("configvalue");
Map<String, String> map = null; //参数的键值对
if (start != -1) {
map = new HashMap<String, String>();
start = elementStr.indexOf("\"", start);
int end = elementStr.lastIndexOf("||");
if (start < 0 || end < 0) {
return null;
}
String configValue = elementStr.substring(start + 1, end);
String[] values = configValue.split("\\|\\|");
for (int i = 0; i < values.length; i++) {
String value = values[i];
if (value != null && value.trim().length() > 1) {
int de = value.indexOf("=");
if (de > 0) {
String name = value.substring(0, de);
String v = value.substring(de + 1);
map.put(name, v);
}
}
}
}
return map;
}
/**
* 转换空值为0
*
* @param str
* @return
*/
public static String conventString(String str) {
return null == str || "".equals(str) ? "" + "0" : str;
}
public static String alert(HandlerResult result, String contextPath) {
StringBuffer sf = new StringBuffer();
sf.append("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
sf.append("<html><head><title>信息提示</title>");
sf.append("<link rel=\"stylesheet\" type=\"text/css\" href=\"").append(contextPath).append("/resource/css/frame.css\" />");
sf.append("<link rel=\"stylesheet\" type=\"text/css\" href=\"").append(contextPath).append("/resource/scripts/Dhtmlx/dhtmlxSuite/dhtmlxWindows/codebase/skins/dhtmlxwindows_dhx_skyblue.css\"/>");
sf.append("<link rel=\"stylesheet\" type=\"text/css\" href=\"").append(contextPath).append("/resource/scripts/Dhtmlx/dhtmlxSuite/dhtmlxWindows/codebase/dhtmlxwindows.css\"/>");
sf.append("<script type=\"text/javascript\" language=\"javascript\" src=\"").append(contextPath).append("/resource/scripts/Dhtmlx/dhtmlxSuite/dhtmlxLayout/codebase/dhtmlxcommon.js\"></script>");
sf.append("<script type=\"text/javascript\" language=\"javascript\" src=\"").append(contextPath).append("/resource/scripts/Dhtmlx/dhtmlxSuite/dhtmlxLayout/codebase/dhtmlxcontainer.js\"></script>");
sf.append("<script type=\"text/javascript\" language=\"javascript\" src=\"").append(contextPath).append("/resource/scripts/Dhtmlx/dhtmlxSuite/dhtmlxWindows/codebase/dhtmlxwindows.js\"></script>");
sf.append("<script type=\"text/javascript\" language=\"javascript\" src=\"").append(contextPath).append("/resource/scripts/jquery-1.7.1.min.js\"></script>");
sf.append("<script type=\"text/javascript\" language=\"javascript\" src=\"").append(contextPath).append("/resource/scripts/uompDialog.js\"></script>");
sf.append("<script type=\"text/javascript\" language=\"javascript\" src=\"").append(contextPath).append("/resource/scripts/main.js\" ></script>");
sf.append("</head><body>");
sf.append("</body></html>");
sf.append("<script type=\"text/javascript\">");
sf.append("$(document).ready(function(){");
sf.append(" top.UOMPDialog.alert('" + result.getResMsg() + "',0,\"\"");
if (SystemCodeConstants.NOT_LOGIN.equals(result.getSysCode())) {
sf.append(", {'yes' : function(){");
sf.append(" top.location.href = '").append(contextPath).append("/index.jsp'").append(";");
sf.append("}}");
}
sf.append(");");
sf.append(" });");
sf.append("</script>");
return sf.toString();
}
public static void main(String[] args) {
Pattern pattern = Pattern.compile("<span\\s.+?]]</span>");
String str = "<span configvalue=\"eid=1043||ename=%E9%9D%A2%E5%8C%85%E5%B1%91||folderId=CLBLYM||\" contenteditable=\"false\" style=\"background-color: #ffff00; color: #000000\">[[ 面包屑 ]]</span><br />"
+ "业务名称：<span configvalue=\"eid=1042||ename=%E4%B8%9A%E5%8A%A1%E5%90%8D%E7%A7%B0||busiNum=CL||\" contenteditable=\"false\" style=\"background-color: #ffff00; color: #000000\">[[ 业务名称 ]]</span><br />"
+ "业务资费：<span configvalue=\"eid=1041||ename=%E4%B8%9A%E5%8A%A1%E8%B5%84%E8%B4%B9||busiNum=CL||\" contenteditable=\"false\" style=\"background-color: #ffff00; color: #000000\">[[ 业务资费 ]]</span><br />"
+ "业务介绍：<br />"
+ "<span configvalue=\"eid=1040||ename=%E4%B8%9A%E5%8A%A1%E4%BB%8B%E7%BB%8D||busiNum=CL||\" contenteditable=\"false\" style=\"background-color: #ffff00; color: #000000\">[[ 业务介绍 ]]</span><br />"
+ "<br />"
+ "<br />"
+ "<br /><span >]]</span>"
+ "<span configvalue=\"eid=1043||ename=%E9%9D%A2%E5%8C%85%E5%B1%91||folderId=CLBLYM||\" contenteditable=\"false\" style=\"background-color: #ffff00; color: #000000\">[[ 面包屑 ]]</span><br />";
Matcher matcher = pattern.matcher(str);
String htmlStr = "";
StringBuffer strbuff = new StringBuffer();
int i = 0;
while (matcher.find()) {
String bm = matcher.group();
System.out.println(bm);
Map map = getConfigValue(bm);
if (map != null) {
//todo:从缓存中获取数据
if (((String) map.get("eid")).equals("1043")) {
String se = "【掌上营业厅】+ 1";
matcher.appendReplacement(strbuff, Matcher.quoteReplacement(se == null ? "" : se));
} else if (((String) map.get("eid")).equals("1042")) {
String se = "【掌上营业厅】+ 2";
matcher.appendReplacement(strbuff, Matcher.quoteReplacement(se == null ? "" : se));
} else if (((String) map.get("eid")).equals("1041")) {
String se = "【掌上营业厅】 + 3";
matcher.appendReplacement(strbuff, Matcher.quoteReplacement(se == null ? "" : se));
} else if (((String) map.get("eid")).equals("1040")) {
String se = "【掌上营业厅】+ 4";
matcher.appendReplacement(strbuff, Matcher.quoteReplacement(se == null ? "" : se));
} else if (((String) map.get("eid")).equals("1046")) {
String se = "【掌上营业厅】+888888888888";
matcher.appendReplacement(strbuff, Matcher.quoteReplacement(se == null ? "" : se));
}
i++;
}
}
matcher.appendTail(strbuff);
htmlStr += strbuff.toString();
System.out.println(htmlStr + "=================" + i);
}
/**
* 方法描述：判断传入的字符串是否非空，即：字符串是否等于null、""或" "。
* 创建日期：2013-12-7下午11:39:34
* 修改日期：
* 作者：zhanglu
* @param:
* @return:boolean
*/
public static boolean isNotEmpty(String str)
{
if ((null == str) || ("".equals(str.trim())))
{
return false;
}
else
{
return true;
}
}
/**
* 方法描述：将传入的字符串转换成整型数据，如果转换过程中发生异常，则返回默认值：defaultValue。
* 创建日期：2013-12-7下午11:40:20
* 修改日期：
* 作者：zhanglu
* @param:
* @return:int
*/
public static int convertIntoInt(String str, int defaultValue)
{
// 定义一个返回值，假如转型过程中发生异常，则返回此默认值
int retData = defaultValue;
try
{
retData = Integer.parseInt(str.trim());
}
catch(NumberFormatException e)
{
}
catch(Exception ex)
{
}
return retData;
}
}
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原文地址：http://blog.csdn.net/aebeqne/article/details/51993000
