java向数据库插入N条数据

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为了测试mysql的索引，要向数据库先插入上万条数据，然后再测试。手动插入太麻烦，写了一段代码。

先上代码：

package action;import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;public class InsertData { public Connection getConnection(){
// 驱动程序名
String driver = "com.mysql.jdbc.Driver";
// URL指向要访问的数据库名scutcs
String url = "jdbc:mysql://127.0.0.1:3306/wang";
// MySQL配置时的用户名
String user = "root";
// MySQL配置时的密码
String password = "12345";
Connection conn=null; try {
// 加载驱动程序
Class.forName(driver);
// 连续数据库
conn = DriverManager.getConnection(url, user, password);
}
catch (Exception e) {
System.out.println("Sorry,can`t find the Driver!");
e.printStackTrace();// TODO: handle exception
}
return conn;
} public int insertData(int count,String value) throws SQLException{
InsertData insertData=new InsertData();
Connection conn=insertData.getConnection();
if(!conn.isClosed())
System.out.println("begin insert!");
// statement用来执行SQL语句
Statement statement = conn.createStatement();
// 要执行的SQL语句
int n=0;
for (int i = 0; i <=count; i++) {
String sql = "insert into student(Sno,Sname) values('"+i+"','"+value+"')";
n=statement.executeUpdate(sql);
n++;
}
System.out.println("insert end!");
return n;
} /**
* @param args
* @throws SQLException
*/
public static void main(String[] args) throws SQLException {
// TODO Auto-generated method stub
InsertData insertData=new InsertData();
Connection conn=insertData.getConnection();
if(!conn.isClosed())
System.out.println("Succeeded connecting to the Database!");
int n=0;
n=insertData.insertData(10000,"数据内容");
System.out.println("the Count is:"+n); // statement用来执行SQL语句
Statement statement = conn.createStatement();
// 要执行的SQL语句
String sql = "select * from student";
// 结果集
ResultSet rs = statement.executeQuery(sql); System.out.println("-----------------");
System.out.println("执行结果如下所示:");
System.out.println("-----------------");
System.out.println(" 学号" + "\t" + " 姓名");
System.out.println("-----------------"); String name = null; while(rs.next()) {
name = rs.getString("sname");
System.out.println(rs.getString("Sno") + "\t" + name);
} rs.close();
conn.close(); }}