wriettofile.java

电信数据整合系统

package simulate;

import java.io.DataOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

public class WrietToFile {
	private FileOutputStream fos;
	private DataOutputStream dos;
	
	
	public void Wriet(UserInfo user){
		
		File file=new File("adm"+File.separator+"wtmpx");
			if(file.exists()==false)
				try {
					file.createNewFile();
				} catch (IOException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
				try {
					fos=new FileOutputStream(file);
					dos=new DataOutputStream(fos);
				} catch (FileNotFoundException e) {
				
					e.printStackTrace();
				}
				try {
					byte[] usr = new byte[32];
					byte[] usr1 = user.getLoginname().getBytes();
					for(int i = 0; i < usr1.length; i++){
						usr[i] = usr1[i];
					}
					dos.write(usr);
					dos.write(new byte[36]);
					dos.writeInt(user.getPid());
					dos.writeShort(user.getType());
					dos.write(new byte[6]);
					dos.writeLong(user.getLogintime());
					dos.write(new byte[26]);
					byte[] usrip = new byte[257];
					byte[] usrip1 = user.getUserip().getBytes();
					for(int i = 0; i < usrip1.length; i++){
						usrip[i] = usrip1[i];
					}
					dos.write(usrip);
				} catch (IOException e) {
					e.printStackTrace();
				}
				
	}

}