string clob/blob 互轉

String s1="1231dsdgasd的颯颯大";     

      Clob c = new SerialClob(s1.toCharArray());//String 轉 clob
      Blob b = new SerialBlob(s1.getBytes("GBK"));//String 轉 blob

//      也可以這樣不傳字符集名稱，默認使用系統的
//      Blob b = new SerialBlob(s1.getBytes());      

      String clobString = c.getSubString(1, (int) c.length());//clob 轉 String
      String blobString = new String(b.getBytes(1, (int) b.length()),"GBK");//blob 轉 String

//      前面若沒傳入字符集名稱，則這里也不需要傳入，以免出錯
//      String blobString = new String(b.getBytes(1, (int) b.length()));      

      System.out.println(clobString);
      System.out.println(blobString);