主机检测

 

Search.java

package com.java;

import java.io.File;
import java.io.IOException;
import java.nio.charset.StandardCharsets;

import javax.utils.HttpUtils;

import org.apache.commons.io.FileUtils;
import org.jsoup.Connection.Response;

public class Search {

    private static final int start = 1;
    private static final int end = 255;
    private static final int OK_CODE = 200;

    private static final String text = "%s %s\n";
    private static final String url = "http://%s:8080/getHostMessage";

    public static void main(String[] args) {
        try {
            String format = "192.%s.%s.%s";
            String ip = null;
            for (int i = start; i < end; i++) {
                for (int j = start; j < end; j++) {
                    for (int k = start; k < end; k++) {
                        ip = String.format(format, i, j, k);
                        detectHost(ip);
                    }
                    System.out.println(ip);
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

        System.out.println("执行完成！");
    }

    public static void write(String text) throws IOException {
        FileUtils.writeStringToFile(new File("IP.txt"), text, StandardCharsets.UTF_8, true);
    }

    public static void detectHost(String ip) {
        try {
            Response response = HttpUtils.get(String.format(url, ip));
            if (OK_CODE == response.statusCode()) {
                write(String.format(text, ip, response.body()));
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}

 

 

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