java批量导入数据

StringBuffer sb = new StringBuffe();
sb.append(str[1] + "#XT#");
sb.append(str[2]+"#XT#");
sb.append("\n");
byte date[] = sb.toString().getBytes();
InputStream in = new ByteArrayInputStream(date);
insertBeach(in);
sb = new StringBuffer();

public static void insertBeach(InputStream in){
        try{
                conn = Util.getConnect();
                String sql = "load data local infile 'sql.scv'  ignore table  Base.table fields terminated  by '#XT#' ";
                 ps = conn.prepareStatement (sql);
                  if(ps.isWrapperFor(com.mysql.jdbc.Statement.class)){
                  com.mysql.jdbc.PreparedStatement   pst  = ps.unwrap(com.mysql.jdbc.PreparedStatement.class);
                  pst.setLocalInfileInputStream(in);
                  pst.executeUpdate()
            }
        }catch(Exception e){
            e.printStackTrace();
       }finally{
            closePs(ps);
            closeConn(conn);
    }
}