filesend.java

JAVA 文件传输 发送文件 接受文件

package fileclient;

import java.net.*;
import java.io.*;

public class FileSend {
    public static void main(String[] args) {
        String fName = "d:/1.exe";
        Socket soc = null;
        InputStream is = null;
        OutputStream os = null;
        FileInputStream fis = null;
        BufferedReader br = null;
        BufferedWriter bw = null;
        String msg = "";
        File f = new File(fName);
        try {
            soc = new Socket("127.0.0.1", 9999);
            System.out.println("connect server ok!");
            is = soc.getInputStream();
            os = soc.getOutputStream();
            bw = new BufferedWriter(
                    new OutputStreamWriter(os));
            br = new BufferedReader(
                    new InputStreamReader(is));
            fis = new FileInputStream(fName);
            bw.write("SendFile");
            bw.newLine();
            bw.flush();
            msg = br.readLine();
            if (msg.equals("FileName")) {
                bw.write(f.getName());
                bw.newLine();
                bw.flush();
                msg = br.readLine();
                if (msg.equals("FileSize")) {
                    bw.write(""+f.length());
                    bw.newLine();
                    bw.flush();
                    msg = br.readLine();
                    if (msg.equals("Ready")) {
                        byte[] bs = new byte[fis.available()];
                        int bt = -1;
                        fis.read(bs,0,bs.length);
                        //while ((bt = fis.read(bs, 0, bs.length)) > 0) {
                        os.write(bs, 0, bs.length);
                        //}
                        fis.close();
                        msg = br.readLine();
                        if (msg.equals("Finished")) {
                            System.out.println("file send success!");
                        }
                    }
                }
            }
        } catch (Exception ex) {
            System.out.println("ex in client:" +
                               ex.getMessage());
        } finally {
            try {
                bw.close();
            } catch (Exception ex) {}
            try {
                br.close();
            } catch (Exception ex) {}
            try {
                is.close();
            } catch (Exception ex) {}
            try {
                os.close();
            } catch (Exception ex) {}
            try {
                soc.close();
            } catch (Exception ex) {}
        }
    }
}