java.sql.SQLException: ORA-01460: 转换请求无法实施或不合理 异常

Question

package jdbc_day3;

import java.io.File;
import java.io.FileInputStream;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;

public class SavePic {
static Connection conn = null;
static PreparedStatement Pstmt = null;

public static void main(String[] args) {
    insertPic();
}
public static void insertPic(){
    String driver = "oracle.jdbc.driver.OracleDriver";
    String url = "java:oracle:thin:@localhost:1521:orcl";
    String sql = "insert into stu_lu(id, name, photo) values (myseq.nextval,?,?)";
    try {
        Class.forName(driver);
        conn = DriverManager.getConnection(url,"system","0000");
        Pstmt = conn.prepareStatement(sql);

        File f = new File("mykfc.jpg");
        FileInputStream fis = new FileInputStream(f);

        Pstmt.setString(1, "peter");
        Pstmt.setBinaryStream(2, fis, (int)f.length());

        int n = Pstmt.executeUpdate();
        System.out.println(n+"条记录被更新");


    } catch (SQLException e) {
        e.printStackTrace();
    } catch (ClassNotFoundException e) {
        e.printStackTrace();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        try {
            conn.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

}

Answer 1

不知道哪里错了，希望大神解答！