CLOB/BLOB与String互转。

  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);