1. getResultSet（）獲取該Statement執行查詢語句後返回的ResultSet物件
2. getUpdateCount()獲取該Statement執行SQL語句後影響的記錄行數

import java.io.FileInputStream;
import java.sql.*;
import java.util.Properties;

public class ExecuteSQL {

//    常規操作
    private String driver;
    private String url;
    private String user;
    private String pass;
    public void initParam(String paramFile) throws  Exception{
        Properties properties = new Properties();
        properties.load(new FileInputStream(paramFile));
        driver = properties.getProperty("driver");
        url = properties.getProperty("url");
        user = properties.getProperty("user");
        pass = properties.getProperty("pass");
    }
    public void executeSql(String sql) throws Exception{
        Class.forName(driver);
        try(
                Connection connection = DriverManager.getConnection(url, user, pass);
                Statement statement = connection.createStatement()){

            boolean hasResultSet = statement.execute(sql);
//            執行execute方法後返回boolean值

            if(hasResultSet){
                try(
                        ResultSet rs = statement.getResultSet()
//                獲取結果集
                ){

                    ResultSetMetaData rsmd = rs.getMetaData();
//                    ResultSetMetaData是用於分析結果集的元資料介面

                    int columnCount = rsmd.getColumnCount();
//                    獲取行數

                    while (rs.next()){
                        for(int i=0; i<columnCount; i++){
                            System.out.println(rs.getString(i+1) + "\t");
                        }
                        System.out.println();
                    }
                }
            }
            else {
                System.out.println("該sql語句影響的記錄有" + statement.getUpdateCount() + "條");
            }
        }
    }

    public static void main(String args[]) throws  Exception{
        ExecuteSQL executeSQL = new ExecuteSQL();
        executeSQL.initParam("mysql.ini");
        System.out.println("刪除表的DDL語句");
        executeSQL.executeSql("drop table if exists my_test");
        System.out.println("建立表的DDL語句");
        executeSQL.executeSql("create table my_test" +
                "(id int);");
        System.out.println("插入資料");
        executeSQL.executeSql("insert into my_test values (1);");
        System.out.println("查詢所有資料");
        executeSQL.executeSql("select * from my_test");

    }
}

//執行上面的程式，得到以下執行結果
//        刪除表的DDL語句
//        該sql語句影響的記錄有0條
//        建立表的DDL語句
//        該sql語句影響的記錄有0條
//        插入資料
//        該sql語句影響的記錄有1條
//        查詢所有資料
//        1