我想把该JAVA程序的结果输出到TXT文件里怎么半 求教 谢谢

[jacksto]

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


public class whois
{
public final static int port = 43;
public final static String hostname = "whois.internic.net";

public static void main(String[] args)
{



Socket theSocket;
DataInputStream theWhoisStream;
PrintStream ps;

//检查命令行参数
if (args.length <1)
{
System.out.println("\nUsage: java whois <command>");
System.out.println("Parameters:");
System.out.println(
"\tcommand = one or more Domain name, or other command.");
System.out.println("Example:");
System.out.println("\tjava whois sohu.com");
System.out.println("\tjava whois help");

System.exit(1); //退出
}

try {
//在TCP服务端口43（十进制）连接SRI-NIC服务主机
theSocket = new Socket(hostname, port, true);
ps = new PrintStream(theSocket.getOutputStream());
//发送用户提供的一个或多个命令
for (int i = 0; i < args.length; i++)
ps.print(args[i] + " ");
//以回车和换行（<CRLF>）结尾
ps.print("\r\n");

//接受相应命令的返回信息
theWhoisStream = new DataInputStream(theSocket.getInputStream());
String s;
while ((s = theWhoisStream.readLine()) != null) {
System.out.println(s);


}

//关闭DataInputStream和PrintWriter
theWhoisStream.close();
ps.close();
//关闭socket
theSocket.close();
}
catch (IOException e) {
System.err.println(e);
}
}
}
这个是一个WHOIS协议的查找域名的
想把该JAVA程序的结果输出到TXT文件里怎么半

[bootupnow]

套一个输出流到文件就可以了。

[bootupnow]

.....
BufferedWriter bw = new BufferedWriter(new FileWriter("C:/whois_text.txt"));
while ((s = theWhoisStream.readLine()) != null) {
    System.out.println(s);
    bw.write(s);
    bw.newLine();   
}
bw.flush();
bw.close();
....

[jacksto]

谢谢各位高手

[hmsuccess]

同上，

[J_Factory]

import java.net.*;
import java.io.*;
public class whois {
	public final static int port = 43;

	public final static String hostname = "whois.internic.net";

	public static void main(String[] args) {

		Socket theSocket;
		DataInputStream theWhoisStream;
		PrintStream ps;
		File f;
		FileOutputStream fos;
		BufferedWriter bw;
		// 检查命令行参数
		if (args.length < 1) {
			System.out.println("\nUsage: java whois  <command>");
			System.out.println("Parameters:");
			System.out
					.println("\tcommand = one or more Domain name, or other command.");
			System.out.println("Example:");
			System.out.println("\tjava whois sohu.com");
			System.out.println("\tjava whois help");

			System.exit(1); // 退出
		}
		try {
			// 在TCP服务端口43（十进制）连接SRI-NIC服务主机
			theSocket = new Socket(hostname, port, true);
			ps = new PrintStream(theSocket.getOutputStream());
			// 发送用户提供的一个或多个命令
			for (int i = 0; i < args.length; i++)
				ps.print(args[i] + " ");
			// 以回车和换行（ <CRLF>）结尾
			ps.print("\r\n");

			// 接受相应命令的返回信息
			theWhoisStream = new DataInputStream(theSocket.getInputStream());
			String s;
			f=new File("f:\\temp.txt");
			 fos =new FileOutputStream(f);
			 bw=new BufferedWriter(new OutputStreamWriter(fos));
			while ((s = theWhoisStream.readLine()) != null) {
				//System.out.println(s);
				bw.write(s);

			}
			bw.flush();
			bw.close();

			// 关闭DataInputStream和PrintWriter
			theWhoisStream.close();
			ps.close();
			// 关闭socket
			theSocket.close();
		} catch (IOException e) {
			System.err.println(e);
		}
	}
}

测试通过

[jacksto]

你们都是好人 谢谢

[bootupnow]

[Quote=引用 6 楼 jacksto 的回复:]
你们都是好人 谢谢

[/Quote]
CSDNer都是活雷锋，hoho~

[jacksto]

再问个问题如果我要一次多输入几个查询的内容要怎么半啊
例如java whois google.com 我接着还想在输入几个 163 。COM ；SOHU。COM怎么办啊 能一次输入几个一起查的吗

[bootupnow]

比较容易想到的是，用循环多次调用
简易改造下lz的代码

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

public class whois {
    public final static int port = 43;
    public final static String hostname = "whois.internic.net";

    public void doSomething(String[] args){

        Socket theSocket;
        DataInputStream theWhoisStream;
        PrintStream ps;

        // 检查命令行参数
        if (args.length < 1) {
            System.out.println("\nUsage: java whois  <command>");
            System.out.println("Parameters:");
            System.out
                    .println("\tcommand = one or more Domain name, or other command.");
            System.out.println("Example:");
            System.out.println("\tjava whois sohu.com");
            System.out.println("\tjava whois help");

            System.exit(1); // 退出
        }

        try {
            // 在TCP服务端口43（十进制）连接SRI-NIC服务主机
            theSocket = new Socket(hostname, port, true);
            ps = new PrintStream(theSocket.getOutputStream());
            // 发送用户提供的一个或多个命令
            for (int i = 0; i < args.length; i++)
                ps.print(args[i] + " ");
            // 以回车和换行（ <CRLF>）结尾
            ps.print("\r\n");

            // 接受相应命令的返回信息
            theWhoisStream = new DataInputStream(theSocket.getInputStream());
            String s;
            BufferedWriter bw = new BufferedWriter(new FileWriter(
                    "D:/story/ip.txt",true)); // 附加方式 append
            while ((s = theWhoisStream.readLine()) != null) {
                System.out.println(s);
                bw.write(s);
                bw.newLine();
            }
            bw.flush();
            bw.close();
            // 关闭DataInputStream和PrintWriter
            theWhoisStream.close();
            ps.close();
            // 关闭socket
            theSocket.close();
        } catch (IOException e) {
            System.err.println(e);
        }        
    }
    
    public static void main(String[] args) {
        whois test = new whois();
        for(String s:args){
            test.doSomething(new String[]{s});
        }
    }
}

[nihuajie05]

[Quote=引用 7 楼 bootupnow 的回复:]
引用 6 楼 jacksto 的回复:
你们都是好人 谢谢


CSDNer都是活雷锋，hoho~
[/Quote]
你说的好!!!

[jacksto]

顶楼上的 哈哈

[jinyong3771912]

真的很不错呢！