Clob Blob 转化 String

    String s1="1231dsdgasd的飒飒大";

        Clob c = new SerialClob(s1.toCharArray());//String 转 clob
        Blob b = new SerialBlob(s1.getBytes("GBK"));//String 转 blob
//      也可以这样不传字符集名称，默认使用系统的
//      Blob b = new SerialBlob(s1.getBytes());

        String clobString = c.getSubString(1, (int) c.length());//clob 转 String
        String blobString = new String(b.getBytes(1, (int) b.length()),"GBK");//blob 转 String
//      前面若没传入字符集名称，则这里也不需要传入，以免出错
//      String blobString = new String(b.getBytes(1, (int) b.length()));

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