讀取一個Excel檔案裡面的內容，進行批量插入資料庫中；

一開始想的是，最基本的操作：遍歷一個一個的提交到資料庫裡面，這樣效率太低；

用了DBUtils中QueryRunner.batch()方法；

參考程式碼如下：

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

import org.apache.commons.dbutils.QueryRunner;

public class Test {
	 
    private static final String DRIVER_CLASS_NAME = "com.mysql.jdbc.Driver";
    private static final String JDBC_URL = "jdbc:mysql://localhost:3306/taotao?characterEncoding=utf-8";
    private static final String USER = "root";
    private static final String PASSWORD = "123456";
 
    public static void main(String[] args) {
    	long a = System.currentTimeMillis();
        int count = 1000; // 插入記錄的數目
        Object[][] params = new Object[count][];
        for (int i = 0; i < count; i++)
            // 將每條記錄的資料插入陣列
            params[i] = new Object[] { (i+1)+"", "2", "3" };
        batch(params);
        System.out.println(System.currentTimeMillis()-a);
    }
 
    public static Connection getConnection() {
        Connection conn = null;
        try {
            Class.forName(DRIVER_CLASS_NAME);
            conn = DriverManager.getConnection(JDBC_URL, USER, PASSWORD);
            return conn;
        } catch (Exception e) {
            return null;
        }
    }
 
    public static void batch(Object[][] params) {
        QueryRunner queryRunner = new QueryRunner(true);
        String sql = "INSERT INTO TABLE_NAME VALUES (?,?,?)";
        try {
            queryRunner.batch(getConnection(), sql, params);
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
 
}
 

參考連結：

https://www.cnblogs.com/wang-meng/p/5525389.html

https://blog.csdn.net/wang_shuyu/article/details/53232529