Question

我想在Java中获取Twitter page title，description和keywords。

我为此多次瞪眼但是我无法得到解决方案。所有人都以一些ISO-8859字符集格式回复了我。请帮我以UTF-8字符集格式回复。

我使用下面的代码，

public class TitDesKey
{
        public static void main ( String[] args ) throws IOException 
        {
            String inputLine,source= null,result_tit= null,result_des= null,result_key= null;
                try 
                {
                        URL url = new URL("http://www.twitter.com");

                        URLConnection conn =  url.openConnection();
                        conn.setRequestProperty("User-Agent","Mozilla/5.0 (X11; U; Linux x86_64; en-GB; rv:1.8.1.6) Gecko/20070723 Iceweasel/2.0.0.6 (Debian-2.0.0.6-0etch1)");
                        BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));                        


                        while ((inputLine = in.readLine()) != null) 
                        {
                            source=source+" "+inputLine;
                            if(inputLine.contains("</head>"))
                            {
                                break;
                            }
                        }
                }
                catch (MalformedURLException e)
                {
                    System.out.println("Please Enter Write Information");
                }
                catch (IOException e) 
                {
                    System.out.println("Please Enter Write Information");
                }


//              Title Data
                Pattern PATTERN_tit = Pattern.compile("<title>(.*?)</title>", Pattern.CASE_INSENSITIVE|Pattern.DOTALL);

                Matcher m_tit = PATTERN_tit.matcher(source);
                while (m_tit.find()) 
                {
                    result_tit = m_tit.group(1);
                    result_tit = result_tit.replace("/", "").trim();
                    System.out.println(result_tit);
                }       

//              Description Data
                Pattern Pattern_dis = Pattern.compile("<meta name=\"description\" content=(.*?)>", Pattern.CASE_INSENSITIVE|Pattern.DOTALL);

                Matcher m_dis = Pattern_dis.matcher(source);
                while (m_dis.find()) 
                {
                    result_des = m_dis.group(1);
                    result_des = result_des.replace("/", "").trim();
                    System.out.println(result_des);
                }   

//              Keyword Data
                Pattern Pattern_key = Pattern.compile("<meta name=\"keywords\" content=(.*?)>",Pattern.CASE_INSENSITIVE|Pattern.DOTALL);

                Matcher m_key = Pattern_key.matcher(source);
                while (m_key.find()) 
                {
                    result_key = m_key.group(1);
                    result_key = result_key.replace("/", "").trim();
                    System.out.println(result_key);
                }   
        }
}

先谢谢你。

Answer 1

如果您要获取的页面已经是UTF-8，那么使用也会接受Charset的重载InputStreamReader构造函数。使用UTF-8，你应该没问题。

Documentation reference

在java中获取twitter页面标题，描述和关键字

1 个答案: