8.Clob类型字段转String

public String clobToString(Clob clob) throws SQLException {
    String reString = "";
    Reader reader = clob.getCharacterStream();
    BufferedReader br = new BufferedReader(reader);
    String s = br.readLine();
    StringBuffer sb = new StringBuffer();
    while(s != null){
        sb.append(s);
        s = br.readLine();        
    }
    reString = sb.toString();
    return reString;
}