package insert;
import java.sql.Connection;import java.sql.DriverManager;import java.sql.SQLException;import java.util.Date;
import com.mysql.jdbc.PreparedStatement;
public class InsertTest {
public static void main(String[] args) throws ClassNotFoundException, SQLException { final String url = "jdbc:mysql://127.0.0.1/test" ;
final String name = "com.mysql.jdbc.Driver" ;
final String user = "root" ;
final String password = "root" ;
Connection conn = null ;
Class.forName(name); //指定连接类型
con = DriverManager.getConnection(url, user, password); //获取连接
if (con!= null ) {
System.out.println( "获取连接成功" );
insert(con);
} else {
System.out.println( "获取连接失败" );
}
} public static void insert(Connection con) { // 开始时间
Long begin = new Date().getTime(); // sql前缀
String prefix = "INSERT INTO teacher (id,name,password,sex,description,img_url,school_name,register_date,remark) VALUES " ; try { // 保存sql后缀
StringBuffer suffix = new StringBuffer(); // 设置事务为非自动提交
conn.setAutoCommit( false ); // 比起st,pst会更好些
PreparedStatement pst = (PreparedStatement) conn.prepareStatement( "" ); //准备执行语句
// 外层循环,总提交事务次数
for ( int i = 1 ; i <= 100 ; i++) {
sbuf = new StringBuffer(); // 第j次提交步长
for ( int j = 1 ; j <= 100000 ; j++) { // 构建SQL后缀
sbuf .append( "('" + uutil.UUIDUtil.getUUID()+ "','" +i*j+ "','123456'" + ",'男'" + ",'教师'" + ",'www.bbk.com'" + ",'XX大学'" + ",'" + "2016-08-12 14:43:26" + "','备注'" + ")," );
} // 构建完整SQL
String sql = prefix + sbuf .substring( 0 , sbuf .length() - 1 ); // 添加执行SQL
pst.addBatch(sql);
pst.executeBatch(); // 执行操作
conn.commit(); // 提交事务
suffix = new StringBuffer(); // 清空上一次添加的数据
}
pst.close();
conn.close();
} catch (SQLException e) {
e.printStackTrace();
} // 结束时间
Long end = new Date().getTime(); // 耗时
System.out.println( "1000万条数据插入花费的时间为 : " + (end - begin) / 1000 + " s" );
System.out.println( "插入完成" );
}
}
JDBC 实现sql操作
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转载自blog.csdn.net/weixin_39144798/article/details/84816917
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