隨筆-60  評(píng)論-35  文章-15  trackbacks-0
          <% @page? import = " java.net.*,java.io.* " %>
          <%!
          ??
          public ? boolean ?saveUrlAs(String?photoUrl,?String?fileName)? {
          // 此方法只能用戶HTTP協(xié)議
          ???? try ? {
          ??????URL?url?
          = ? new ?URL(photoUrl);
          ??????HttpURLConnection?connection?
          = ?(HttpURLConnection)?url.openConnection();
          ??????DataInputStream?in?
          = ? new ?DataInputStream(connection.getInputStream());
          ??????DataOutputStream?out?
          = ? new ?DataOutputStream( new ?FileOutputStream(fileName));
          ??????
          byte []?buffer? = ? new ? byte [ 4096 ];
          ??????
          int ?count? = ? 0 ;
          ??????
          while ?((count? = ?in.read(buffer))? > ? 0 )? {
          ????????out.write(buffer,?
          0 ,?count);
          ??????}

          ??????out.close();
          ??????in.close();
          ??????
          return ? true ;
          ????}

          ????
          catch ?(Exception?e)? {
          ??????
          return ? false ;
          ????}

          ??}

          ?
          public ?String?getDocumentAt(String?urlString)? {
          // 此方法兼容HTTP和FTP協(xié)議
          ????StringBuffer?document? = ? new ?StringBuffer();
          ????
          try ? {
          ??????URL?url?
          = ? new ?URL(urlString);
          ??????URLConnection?conn?
          = ?url.openConnection();
          ??????BufferedReader?reader?
          = ? new ?BufferedReader( new ?InputStreamReader(conn.
          ??????????getInputStream()));
          ??????String?line?
          = ? null ;
          ??????
          while ?(?(line? = ?reader.readLine())? != ? null )? {
          ????????document.append(line?
          + ? " \n " );
          ??????}

          ??????reader.close();
          ????}

          ????
          catch ?(MalformedURLException?e)? {
          ??????System.out.println(
          " Unable?to?connect?to?URL:? " ? + ?urlString);
          ????}

          ????
          catch ?(IOException?e)? {
          ??????System.out.println(
          " IOException?when?connecting?to?URL:? " ? + ?urlString);
          ????}

          ????
          return ?document.toString();
          ??}

          %>
          <%
          // 測試
          ??String?photoUrl? = ? " http://ad4.sina.com.cn/200601/12/43932_750450.jpg " ;
          ??String?fileName?
          = ?photoUrl.substring(photoUrl.lastIndexOf( " / " ));
          ??String?filePath?
          = ? " d:/ghost/ " ;
          ??
          boolean ?flag? = ?saveUrlAs(photoUrl,?filePath? + ?fileName);
          ??out.println(
          " Run?ok!\n<BR>Get?URL?file? " ? + ?flag);
          %>
          posted on 2006-04-04 17:09 Q系列類、方法、變量…… 閱讀(330) 評(píng)論(0)  編輯  收藏 所屬分類: 網(wǎng)上工具代碼
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