使用正则表达式来判断网页

public String HtmlToTextGb2312(String inputString)
    {
              String htmlStr = inputString; //含html标签的字符串
              String textStr ="";
              Pattern p_script;
              Matcher m_script;
              Pattern p_style;
              Matcher m_style;
              Pattern p_html;
              Matcher m_html;
              Pattern p_houhtml;
              Matcher m_houhtml;
              Pattern p_spe;
              Matcher m_spe;
              Pattern p_blank;
              Matcher m_blank;
              Pattern p_table;
              Matcher m_table;
              Pattern p_enter;
              Matcher m_enter;
          
              try {
               String regEx_script = "<[\\s]*?script[^>]*?>[\\s\\S]*?<[\\s]*?\\/[\\s]*?script[\\s]*?>";
               //定义script的正则表达式.
               String regEx_style = "<[\\s]*?style[^>]*?>[\\s\\S]*?<[\\s]*?\\/[\\s]*?style[\\s]*?>";
               //定义style的正则表达式.
               String regEx_html = "<[^>]+>";
               //定义HTML标签的正则表达式
               String regEx_houhtml = "/[^>]+>";
               //定义HTML标签的正则表达式
               String regEx_spe="\\&[^;]+;";
               //定义特殊符号的正则表达式
               String regEx_blank=" +";
               //定义多个空格的正则表达式
               String regEx_table="\t+";
               //定义多个制表符的正则表达式
               String regEx_enter="\n+";
               //定义多个回车的正则表达式

               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_houhtml = Pattern.compile(regEx_houhtml,Pattern.CASE_INSENSITIVE);
               m_houhtml = p_houhtml.matcher(htmlStr);
               htmlStr = m_houhtml.replaceAll(""); //过滤html标签
              
               p_spe = Pattern.compile(regEx_spe,Pattern.CASE_INSENSITIVE);
               m_spe = p_spe.matcher(htmlStr);
               htmlStr = m_spe.replaceAll(""); //过滤特殊符号
              
               p_blank = Pattern.compile(regEx_blank,Pattern.CASE_INSENSITIVE);
               m_blank = p_blank.matcher(htmlStr);
               htmlStr = m_blank.replaceAll(" "); //过滤过多的空格
              
               p_table = Pattern.compile(regEx_table,Pattern.CASE_INSENSITIVE);
               m_table = p_table.matcher(htmlStr);
               htmlStr = m_table.replaceAll(" "); //过滤过多的制表符
              
                  
               p_enter = Pattern.compile(regEx_enter,Pattern.CASE_INSENSITIVE);
               m_enter = p_enter.matcher(htmlStr);
               htmlStr = m_enter.replaceAll(" "); //过滤过多的制表符
              
               textStr = htmlStr;
              
              }catch(Exception e)
              {
                    System.err.println("Html2Text: " + e.getMessage());
              }
          
              return textStr;//返回文本字符串
    }

文章来自: 本站原创
引用通告: 查看所有引用 | 我要引用此文章
Tags:
相关日志: