提供一个JAVA过滤HTML代码和截取字符串的类(包括测试用例)
2015-12-25 15:35
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package com.sunnish.util;
import java.util.regex.Pattern;
public class FunctionUtil {
public static void main(String[] args)
{
String str="<p><font size=/"2/"><span style="/" mce_style="/""font-size: 10.5pt/">依据绩效管理体系的规定,公司决定于</span><span style="/" mce_style="/""font-size: 10.5pt/">2008</span><span style="/" mce_style="/""font-size: 10.5pt/">年</span><span style="/" mce_style="/""font-size: 10.5pt/">12</span><span style="/" mce_style="/""font-size: 10.5pt/">月</span><span style="/" mce_style="/""font-size: 10.5pt/">22</span><span style="/" mce_style="/""font-size: 10.5pt/">日</span><span style="/" mce_style="/""font-size: 10.5pt/">-2009</span><span style="/" mce_style="/""font-size: 10.5pt/">年</span><span style="/" mce_style="/""font-size: 10.5pt/">1</span><span style="/" mce_style="/""font-size: 10.5pt/">月</span><span style="/" mce_style="/""font-size: 10.5pt/"> 23& </span><span style="/" mce_style="/""font-size: 10.5pt/">日期间进行</span><span style="/" mce_style="/""font-size: 10.5pt/">2008</span><span style="/" mce_style="/""font-size: 10.5pt/">年年度绩效考评工作,具体事项如下:</span></font></p>";
String str_text=Html2Text(str);
System.out.println(str_text);
String slice=abbreviate(str_text,60,"...");
System.out.println(slice);
}
/**
* @param str:
* source string
* @param width:
* string's byte width
* @param ellipsis:
* a string added to abbreviate string bottom
* @return String Object
* @deprecated 这个函数是用来对输入的字符串进行截取的功能
*/
public static String abbreviate(String str, int width, String ellipsis) {
if (str == null || "".equals(str)) {
return "";
}
int d = 0; // byte length
int n = 0; // char length
for (; n < str.length(); n++) {
d = (int) str.charAt(n) > 256 ? d + 2 : d + 1;
if (d > width) {
break;
}
}
if (d > width) {
n = n - ellipsis.length() / 2;
return str.substring(0, n > 0 ? n : 0) + ellipsis;
}
return str = str.substring(0, n);
}
/**
* @param str:
* source string
* @param width:
* string's byte width
* @param ellipsis:
* a string added to abbreviate string bottom
* @return String Object
* @deprecated 这个函数是用来对输入字符的HTML代码进行过滤
*/
public static String Html2Text(String inputString) {
String htmlStr = inputString; //含html标签的字符串
String textStr ="";
java.util.regex.Pattern p_script;
java.util.regex.Matcher m_script;
java.util.regex.Pattern p_style;
java.util.regex.Matcher m_style;
java.util.regex.Pattern p_html;
java.util.regex.Matcher m_html;
java.util.regex.Pattern p_html1;
java.util.regex.Matcher m_html1;
try {
String regEx_script = "<[//s]*?script[^>]*?>[//s//S]*?<[//s]*?///[//s]*?script[//s]*?>"; //定义script的正则表达式{或<script[^>]*?>[//s//S]*?<///script> }
String regEx_style = "<[//s]*?style[^>]*?>[//s//S]*?<[//s]*?///[//s]*?style[//s]*?>"; //定义style的正则表达式{或<style[^>]*?>[//s//S]*?<///style> }
String regEx_html = "<[^>]+>"; //定义HTML标签的正则表达式
String regEx_html1 = "<[^>]+";
p_script = Pattern.compile(regEx_script,Pattern.CASE_INSENSITIVE);
m_script = p_script.matcher(htmlStr);
htmlStr = m_script.replaceAll(""); //过滤script标签
p_style = Pattern.compile(regEx_style,Pattern.CASE_INSENSITIVE);
m_style = p_style.matcher(htmlStr);
htmlStr = m_style.replaceAll(""); //过滤style标签
p_html = Pattern.compile(regEx_html,Pattern.CASE_INSENSITIVE);
m_html = p_html.matcher(htmlStr);
htmlStr = m_html.replaceAll(""); //过滤html标签
p_html1 = Pattern.compile(regEx_html1,Pattern.CASE_INSENSITIVE);
m_html1 = p_html1.matcher(htmlStr);
htmlStr = m_html1.replaceAll(""); //过滤html标签
textStr = htmlStr;
}catch(Exception e) {
System.err.println("Html2Text: " + e.getMessage());
}
return textStr;//返回文本字符串
}
}
import java.util.regex.Pattern;
public class FunctionUtil {
public static void main(String[] args)
{
String str="<p><font size=/"2/"><span style="/" mce_style="/""font-size: 10.5pt/">依据绩效管理体系的规定,公司决定于</span><span style="/" mce_style="/""font-size: 10.5pt/">2008</span><span style="/" mce_style="/""font-size: 10.5pt/">年</span><span style="/" mce_style="/""font-size: 10.5pt/">12</span><span style="/" mce_style="/""font-size: 10.5pt/">月</span><span style="/" mce_style="/""font-size: 10.5pt/">22</span><span style="/" mce_style="/""font-size: 10.5pt/">日</span><span style="/" mce_style="/""font-size: 10.5pt/">-2009</span><span style="/" mce_style="/""font-size: 10.5pt/">年</span><span style="/" mce_style="/""font-size: 10.5pt/">1</span><span style="/" mce_style="/""font-size: 10.5pt/">月</span><span style="/" mce_style="/""font-size: 10.5pt/"> 23& </span><span style="/" mce_style="/""font-size: 10.5pt/">日期间进行</span><span style="/" mce_style="/""font-size: 10.5pt/">2008</span><span style="/" mce_style="/""font-size: 10.5pt/">年年度绩效考评工作,具体事项如下:</span></font></p>";
String str_text=Html2Text(str);
System.out.println(str_text);
String slice=abbreviate(str_text,60,"...");
System.out.println(slice);
}
/**
* @param str:
* source string
* @param width:
* string's byte width
* @param ellipsis:
* a string added to abbreviate string bottom
* @return String Object
* @deprecated 这个函数是用来对输入的字符串进行截取的功能
*/
public static String abbreviate(String str, int width, String ellipsis) {
if (str == null || "".equals(str)) {
return "";
}
int d = 0; // byte length
int n = 0; // char length
for (; n < str.length(); n++) {
d = (int) str.charAt(n) > 256 ? d + 2 : d + 1;
if (d > width) {
break;
}
}
if (d > width) {
n = n - ellipsis.length() / 2;
return str.substring(0, n > 0 ? n : 0) + ellipsis;
}
return str = str.substring(0, n);
}
/**
* @param str:
* source string
* @param width:
* string's byte width
* @param ellipsis:
* a string added to abbreviate string bottom
* @return String Object
* @deprecated 这个函数是用来对输入字符的HTML代码进行过滤
*/
public static String Html2Text(String inputString) {
String htmlStr = inputString; //含html标签的字符串
String textStr ="";
java.util.regex.Pattern p_script;
java.util.regex.Matcher m_script;
java.util.regex.Pattern p_style;
java.util.regex.Matcher m_style;
java.util.regex.Pattern p_html;
java.util.regex.Matcher m_html;
java.util.regex.Pattern p_html1;
java.util.regex.Matcher m_html1;
try {
String regEx_script = "<[//s]*?script[^>]*?>[//s//S]*?<[//s]*?///[//s]*?script[//s]*?>"; //定义script的正则表达式{或<script[^>]*?>[//s//S]*?<///script> }
String regEx_style = "<[//s]*?style[^>]*?>[//s//S]*?<[//s]*?///[//s]*?style[//s]*?>"; //定义style的正则表达式{或<style[^>]*?>[//s//S]*?<///style> }
String regEx_html = "<[^>]+>"; //定义HTML标签的正则表达式
String regEx_html1 = "<[^>]+";
p_script = Pattern.compile(regEx_script,Pattern.CASE_INSENSITIVE);
m_script = p_script.matcher(htmlStr);
htmlStr = m_script.replaceAll(""); //过滤script标签
p_style = Pattern.compile(regEx_style,Pattern.CASE_INSENSITIVE);
m_style = p_style.matcher(htmlStr);
htmlStr = m_style.replaceAll(""); //过滤style标签
p_html = Pattern.compile(regEx_html,Pattern.CASE_INSENSITIVE);
m_html = p_html.matcher(htmlStr);
htmlStr = m_html.replaceAll(""); //过滤html标签
p_html1 = Pattern.compile(regEx_html1,Pattern.CASE_INSENSITIVE);
m_html1 = p_html1.matcher(htmlStr);
htmlStr = m_html1.replaceAll(""); //过滤html标签
textStr = htmlStr;
}catch(Exception e) {
System.err.println("Html2Text: " + e.getMessage());
}
return textStr;//返回文本字符串
}
}