去除html中标签

public class Test {

	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

	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

		return htmlStr.trim(); // 返回文本字符串
	}

	public static void main(String[] agrs) {
		String content = "<h4 font='12'>asdf</h4><a href='http://www.baidu.com'>aaa</a>";
		content = delHTMLTag(content);
		System.out.println("content==" + content);
	}
}

结果：content==asdfaaa