數據庫連接url後加上rewriteBatchedStatements=true這個參數即可
jdbc:mysql://localhost:3306/mydb?rewriteBatchedStatements=true
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import org.junit.Test;
import cn.yellowimg.demo3.JdbcUtils;
public class Demo5 {
@Test
public void fun1() throws Exception{
Connection con=JdbcUtils.getConnection();
String sql="insert into stu values(?,?,?,?)";
PreparedStatement preparedStatement=con.prepareStatement(sql);
for(int i=0;i<10000;i++)
{
preparedStatement.setInt(1, i+1);
preparedStatement.setString(2, "ITCAST_"+i);
preparedStatement.setInt(3, i);
preparedStatement.setString(4, i%2==0?"男":"女");
preparedStatement.addBatch();
}
long start=System.currentTimeMillis();
preparedStatement.executeBatch();
long end=System.currentTimeMillis();
System.out.println(end-start);
}
}
preparedStatement.addBatch(); 將sql語句添加到批處理集合中
preparedStatement.executeBatch(); 執行批處理集合