java.lang.AbstractMethodError: com.informix.jdbc.IfxPreparedStatement.setCharact

a315341818

/**     * 插入clob数据      * @throws Exception     */    public static void insertClobOfRead() throws Exception {        PreparedStatement pstmt = null;        String sql = "insert into table_clob1 values(?,?)";        Class.forName("com.informix.jdbc.IfxDriver").newInstance();        String url = "jdbc:informix-sqli://192.168.0.101:9088/db1:INFORMIXSERVER=ol_ids_1150_1;NEWLOCALE=zh_cn,en_us;NEWCODESET=gbk,8859-1,819;";        Connection conn = DriverManager.getConnection(url);        pstmt = conn.prepareStatement(sql);        File file = new File("d:/1.txt");        BufferedReader br = new BufferedReader(new FileReader(file));        pstmt.setString(1, "1");        pstmt.setCharacterStream(2, br, file.length());        br.close();    }
运行上面的代码会出现下面的错误信息：
Exception in thread "main" java.lang.AbstractMethodError: com.informix.jdbc.IfxPreparedStatement.setCharacterStream(ILjava/io/Reader;J)V

错误原因：         //informix数据库的jdbc驱动中的IfxPreparedStatement接口没有继承         //setCharacterStreamint(parameterIndex, Reader reader, long length)        //只继承了setCharacterStreamint(parameterIndex, Reader reader, int length)        //这里需要将长度强制装换为int类型修改：     pstmt.setCharacterStream(2, br, (int)file.length());