java 获得 oracle 的错误代码

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class SqlException {

public static void main(String[] args) {

Connection conn = null;
Statement stmt = null;
ResultSet rs = null;

try {
String driver = "oracle.jdbc.driver.OracleDriver";
Class.forName(driver).newInstance();
System.out.println("Connecting to database...");
String jdbcUrl = "jdbc:oracle:thin:@localhost:1521:ORCL";
conn = DriverManager.getConnection(jdbcUrl, "yourName", "mypwd");

stmt = conn.createStatement();

try {
rs = stmt.executeQuery("Select * from no_table_exisits");
} catch (SQLException seRs) {
String exMsg = "Message from MySQL Database";
String exSqlState = "Exception";
SQLException mySqlEx = new SQLException(exMsg, exSqlState);
seRs.setNextException(mySqlEx);
throw seRs;
}
} catch (SQLException se) {
int count = 1;
while (se != null) {
System.out.println("SQLException " + count);
System.out.println("Code: " + se.getErrorCode());
System.out.println("SqlState: " + se.getSQLState());
System.out.println("Error Message: " + se.getMessage());
se = se.getNextException();
count++;
}
} catch (Exception e) {
e.printStackTrace();
}
}
}