用Java代码高效的插入从文件中读取的数据：报错

用Java代码高效的插入从文件中读取的数据：报错

从文件中读取了大量的数据，怎么批量插入到数据库中？代码如下：

String tableName = "student";
Connection conn = JDBCUtil.getConnection();
String sql = "insert into " + tableName + "(Xh,Xm,Bj,Kc,Cj)"
+ "values(?,?,?,?,?)";
PreparedStatement ps = conn.prepareStatement(sql);


InputStream is = ReadFile.class.getResourceAsStream("大文件.txt");
BufferedReader br;
try {
br = new BufferedReader(new InputStreamReader(is, "GBK"));
String s = br.readLine();
while (s != null) {

String[] info = s.split(",");
ps.setString(0, info[0]);
System.out.println(info[0]+","+info[1]);
ps.setString(1, info[1]);
ps.setString(2, info[2]);
ps.setString(3, info[3]);
ps.setString(4, info[4]);
ps.addBatch();
s = br.readLine();

ps.executeBatch();
System.out.println();
}