转载

Java去除掉HTML里面所有标签的两种方法——开源jar包和自己写正则表达式

Java去除掉HTML里面所有标签,主要就两种，要么用开源的jar处理，要么就自己写正则表达式。自己写的话，可能处理不全一些自定义的标签。企业应用基本都是能找开源就找开源，实在不行才自己写……

1，开源的，我目前找到的就是Jsoup包：

 public static String getTextFromTHML(String htmlStr) {  Document doc = Jsoup.parse(htmlStr);  String text = doc.text();  // remove extra white space  StringBuilder builder = new StringBuilder(text);  int index = 0;  while(builder.length()>index){   char tmp = builder.charAt(index);   if(Character.isSpaceChar(tmp) || Character.isWhitespace(tmp)){    builder.setCharAt(index, ' ');   }   index++;  }  text = builder.toString().replaceAll(" +", " ").trim();  return text; }

2，自己写的话，百度一搜一大堆，这里只是借用一下：

public static String removeTag(String htmlStr) {  String regEx_script = "<script[^>]*?>[//s//S]*?<///script>"; // script  String regEx_style = "<style[^>]*?>[//s//S]*?<///style>"; // style  String regEx_html = "<[^>]+>"; // HTML tag  String regEx_space = "//s+|/t|/r|/n";// other characters   Pattern p_script = Pattern.compile(regEx_script,   Pattern.CASE_INSENSITIVE);  Matcher m_script = p_script.matcher(htmlStr);  htmlStr = m_script.replaceAll("");  Pattern p_style = Pattern   .compile(regEx_style, Pattern.CASE_INSENSITIVE);  Matcher m_style = p_style.matcher(htmlStr);  htmlStr = m_style.replaceAll("");  Pattern p_html = Pattern.compile(regEx_html, Pattern.CASE_INSENSITIVE);  Matcher m_html = p_html.matcher(htmlStr);  htmlStr = m_html.replaceAll("");  Pattern p_space = Pattern   .compile(regEx_space, Pattern.CASE_INSENSITIVE);  Matcher m_space = p_space.matcher(htmlStr);  htmlStr = m_space.replaceAll(" ");  return htmlStr;     }