package tenThreadInsert;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.Date;
public class MyThread extends Thread{
public void run() {
String url = "jdbc:mysql://127.0.0.1/teacher";
String name = "com.mysql.jdbc.Driver";
String user = "root";
String password = "123456";
Connection conn = null;
try {
Class.forName(name);
conn = DriverManager.getConnection(url, user, password);//获取连接
conn.setAutoCommit(false);//关闭自动提交，不然conn.commit()运行到这句会报错
} catch (ClassNotFoundException e1) {
e1.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
// 开始时间
Long begin = new Date().getTime();
// sql前缀
String prefix = "INSERT INTO test_teacher (t_name,t_password,sex,description,pic_url,school_name,regist_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 <= 10; i++) {
suffix = new StringBuffer();
// 第j次提交步长
for (int j = 1; j <= 100000; j++) {
// 构建SQL后缀
suffix.append("('" +i*j+"','123456'"+ ",'男'"+",'教师'"+",'www.bbb.com'"+",'Java大学'"+",'"+"2016-08-16 14:43:26"+"','备注'" +"),");
}
// 构建完整SQL
String sql = prefix + suffix.substring(0, suffix.length() - 1);
// 添加执行SQL
pst.addBatch(sql);
// 执行操作
pst.executeBatch();
// 提交事务
conn.commit();
// 清空上一次添加的数据
suffix = new StringBuffer();
}
// 头等连接
pst.close();
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
// 结束时间
Long end = new Date().getTime();
// 耗时
System.out.println("100万条数据插入花费时间 : " + (end - begin) / 1000 + " s"+" 插入完成");
}
}
package tenThreadInsert;
public class Test {
public static void main(String[] args) {
for (int i = 1; i <=10; i++) {
new MyThread().start();
}
}
}
