如何使用httpclient进行NTLM认证登录

NTLM是微软的一种安全认证机制，有些网站是实用NTLM做的认证登陆，使用httpclient认证后可以发送一些get，post请求。代码是用来自动签到的，重点在于ntml认证。

package com.meican.service;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.util.Date;import java.util.Timer;import java.util.TimerTask;import org.apache.http.HttpEntity;import org.apache.http.HttpHost;import org.apache.http.HttpResponse;import org.apache.http.auth.AuthScope;import org.apache.http.auth.NTCredentials;import org.apache.http.client.ClientProtocolException;import org.apache.http.client.methods.HttpPost;import org.apache.http.entity.StringEntity;import org.apache.http.impl.client.DefaultHttpClient;import org.apache.http.protocol.BasicHttpContext;import org.apache.http.protocol.HttpContext;public class Login {    public static String foldName = "";    public static String userName = "";    public static String password = "";    public static void main(String[] args) throws Exception {        punck(userName,password);    }    public static void punck(String userName,String password){        setMoningSchdule();        setNoonSchdule();        setNightSchdule();    }    public static void setMoningSchdule(){        Timer timer = new Timer();        timer.schedule(new TimerTask() {            @Override            public void run() {                try {                    postRequest(userName, password,                            url);                    writeLog("上午签到返回成功");                }catch (Exception e) {                    writeLog("上午签到返回失败"+e.getMessage());                }                //明天的定时器                setMoningSchdule();            }        }, getMoningDate());    }    public static void setNoonSchdule(){        Timer timer = new Timer();        timer.schedule(new TimerTask() {            @Override            public void run() {                try {                    postRequest(userName, password,                            "url1");                    long d = (long) (Math.random()*120000);                    Thread.sleep(d);                    postRequest(userName, password,                            "url2");                    writeLog("中午午签到返回成功");                }catch (Exception e) {                    writeLog("中午签到返回失败"+e.getMessage());                }                //明天的定时器                setNoonSchdule();            }        }, getNoonDate());    }    public static void setNightSchdule(){        Timer timer = new Timer();        timer.schedule(new TimerTask() {            @Override            public void run() {                try {                    postRequest(userName, password,                            "url4");                    writeLog("下班签到返回成功");                }catch (Exception e) {                    writeLog("下班签到返回失败"+e.getMessage());                }                //明天的定时器                setNightSchdule();            }        }, getNightDate());    }    public static Date getMoningDate(){        Date date = new Date();        date.setDate(date.getDate()+1);        date.setHours(8);        date.setSeconds((int) (Math.random()*60));        long minute = (long) (Math.random()*30);        date.setMinutes((int) (minute+30));        writeLog("明天早晨打卡时间"+printDate(date));        return date;    }    public static Date getNoonDate(){        Date date = new Date();        date.setDate(date.getDate()+1);        date.setHours(11);        date.setSeconds((int) (Math.random()*60));        long minute = (long) (Math.random()*30);        date.setMinutes((int) (minute+60));        writeLog("明天中午打卡时间"+printDate(date));        return date;    }    public static Date getNightDate(){        Date date = new Date();        date.setDate(date.getDate()+1);        date.setHours(18);        date.setSeconds((int) (Math.random()*60));        long minute = (long) (Math.random()*30);        date.setMinutes((int) (minute));        writeLog("明天晚上打卡时间"+printDate(date));        return date;    }    public static String printDate(Date date){        int day = date.getDay();        int h = date.getHours();        int m = date.getMinutes();        int s = date.getSeconds();        int dm = date.getDate();        int mon = date.getMonth();        int year = 1900 + date.getYear();        String dateStr = year + "-" + (mon+1) + "-"+ dm;        String timeStr = dateStr + " " + h + ":" + m + ":" + s;        return timeStr;    }    @SuppressWarnings("deprecation")    public static void postRequest(String userName, String password, String url)            throws ClientProtocolException, IOException {        Date date = new Date();        if(date.getDay() ==0 || date.getDay() == 6){            writeLog("今天是周末");            return;        }        writeLog(url);        DefaultHttpClient httpclient = new DefaultHttpClient();        NTCredentials creds = new NTCredentials(userName, password,                "", "");        httpclient.getCredentialsProvider()                .setCredentials(AuthScope.ANY, creds);        HttpHost target = new HttpHost("172.19.10.4", 80, "http");        // 保证相同的内容来用于执行逻辑相关的请求        HttpContext localContext = new BasicHttpContext();        // 首先执行简便的方法。这会触发NTLM认证        // 之后使用相同的内容（和连接）执行开销大的方法。        HttpPost httppost = new HttpPost(url);        httppost.setEntity(new StringEntity("lots and lots of data"));        HttpResponse response2 = httpclient.execute(target, httppost,                localContext);        HttpEntity entity2 = response2.getEntity();        try{            InputStream inSm = entity2.getContent();            BufferedReader br = new BufferedReader(new InputStreamReader(inSm,                    "GB2312"));            String data = "";            while ((data = br.readLine()) != null) {                writeLog(data);            }        }catch(Exception e){        }    }    public static void writeLog(String message) {        System.out.println(message);    }}