import java.sql.*;
import java.io.*;

public class writedb {
 public static void main(string[] args)  {
  connection conn=null;
  string driver="com.mysql.jdbc.driver";//驱动
  string url="jdbc:mysql://127.0.0.1/test?useunicode=true;characterencoding=8859_1";// 数据库联接 

  try{
   class.forname(driver).newinstance();
   conn=drivermanager.getconnection(url,"root","");
   file file=new file(args[0]);
   fileinputstream fis=new fileinputstream(file);
   preparedstatement pstmt=conn.preparestatement(
    "insert into picture(picture) values(?)");
   int bytes=(int)file.length();
   system.out.println(bytes);
   
   pstmt.setbinarystream(1,fis,bytes);//1为插入的参数1，2。。。fileinstream为插入的数据，bytes为字节长度
   pstmt.executeupdate();

   conn.close();
   fis.close();
  }catch(exception e){
   system.out.println(e.getmessage());
  }
 }
}