java替换富文本标签等

（转自：http://www.cnblogs.com/1246447850qqcom/p/5439366.html）

package q;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class htmlTest {
private static final String regEx_script = "<script[^>]*?>[\s\S]*?<\/script>"; // 定义script的正则表达式
private static final String regEx_style = "<style[^>]*?>[\s\S]*?<\/style>"; // 定义style的正则表达式
private static final String regEx_html = "<[^>]+>"; // 定义HTML标签的正则表达式
private static final String regEx_space = "\s*| | | ";//定义空格回车换行符

/**
* @param htmlStr
* @return
* 删除Html标签
*/
public static String delHTMLTag(String htmlStr) {
Pattern p_script = Pattern.compile(regEx_script, Pattern.CASE_INSENSITIVE);
Matcher m_script = p_script.matcher(htmlStr);
htmlStr = m_script.replaceAll(""); // 过滤script标签

Pattern p_style = Pattern.compile(regEx_style, Pattern.CASE_INSENSITIVE);
Matcher m_style = p_style.matcher(htmlStr);
htmlStr = m_style.replaceAll(""); // 过滤style标签

Pattern p_html = Pattern.compile(regEx_html, Pattern.CASE_INSENSITIVE);
Matcher m_html = p_html.matcher(htmlStr);
htmlStr = m_html.replaceAll(""); // 过滤html标签

Pattern p_space = Pattern.compile(regEx_space, Pattern.CASE_INSENSITIVE);
Matcher m_space = p_space.matcher(htmlStr);
htmlStr = m_space.replaceAll(""); // 过滤空格回车标签
return htmlStr.trim(); // 返回文本字符串
}

public static String getTextFromHtml(String htmlStr){
htmlStr = delHTMLTag(htmlStr);
htmlStr = htmlStr.replaceAll("&nbsp;", "");
// htmlStr = htmlStr.substring(0, htmlStr.indexOf("。")+1);
return htmlStr;
}

public static void main(String[] args) {
String str = "<div style='text-align:center;'> 整治“四风” 清弊除垢<br/><span style='font-size:14px;'> </span><span style='font-size:18px;'>公司召开党的群众路线教育实践活动动员大会</span><br/><title>我是标题</title><desc>我是desc里的内容</desc></div>";
System.out.println(getTextFromHtml(str));
}
}