我的批量操作

苏醄 — Tue, 28 Aug 2007 00:44:00 GMT

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;

public class test {
/*
   String sDBDriver = "com.microsoft.jdbc.sqlserver.SQLServerDriver";
    String url ="jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=jihedb";
    String user = "sa";
       String password = "517747";
       Connection conn = null;
       PreparedStatement pstmt=null;
       ResultSet rs = null;
   public test() {
          try {
           Class.forName(sDBDriver);
          } catch (java.lang.ClassNotFoundException e)
                      {
           System.err.println("DBconn(): " + e.getMessage());
                 }
                    }
   */


    String url="jdbc:jtds:sqlserver://localhost:1433/jihedb";
    String username="sa";
    String password="517747";
    static Connection conn=null;
    PreparedStatement pstmt=null;

    //构造函数
    public test()
{
try{
Class.forName("net.sourceforge.jtds.jdbc.Driver");
DriverManager.registerDriver(new net.sourceforge.jtds.jdbc.Driver());

conn=DriverManager.getConnection(url,username,password);

}catch(ClassNotFoundException e)
{
e.printStackTrace();
}catch(SQLException e)
{
e.printStackTrace();
}
}

    //main()函数
    public static void main(String args[]) throws SQLException{

        test m=new test();

        PreparedStatement ps =conn.prepareStatement( "INSERT into code values (?,?)");
        Date t=(Calendar.getInstance()).getTime();

        Set s=new HashSet();

            Date tt=(Calendar.getInstance()).getTime();
            System.out.print("插入开始"+tt);
           int count=0;
           //LinkedList v=new LinkedList();
           ArrayList v=new ArrayList();
           for(int i=1;i<1000000;i++){
             v.add(i);
           }
           System.out.println("长度"+v.size());

           Iterator vv=v.iterator();
           while(vv.hasNext()){

                ps.setObject(1,vv.next());
                ps.setString(2, "0");

                ps.addBatch();
                count+=1;

                if(count%1000==0)
                {
                ps.executeBatch();
                }
           }
           ps.executeBatch();
           Date ttt=(Calendar.getInstance()).getTime();
           System.out.print("结束"+ttt);
    }

}

苏醄 2007-08-28 08:44 发表评论

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我的批量操作