需要自己设置bduss，bduss设置方法：登录百度后在首页按F12，在调试窗口左上角Filter中填www.baidu.com 在Headers选项卡中Request Headers中找到BDUSS=复制其后的字符 赋值给代码中的bduss即可所需依赖：<dependency>    <groupId>org.apache.httpcomponents</groupId>    <artifactId>httpclient</artifactId>    <version>4.5.8</version></dependency><dependency>    <groupId>org.apache.httpcomponents</groupId>    <artifactId>httpcore</artifactId>    <version>4.4.6</version></dependency><dependency>    <groupId>org.apache.commons</groupId>    <artifactId>commons-lang3</artifactId>    <version>3.8.1</version></dependency><dependency>    <groupId>com.alibaba</groupId>    <artifactId>fastjson</artifactId>    <version>1.2.58</version></dependency>或者直接用commons-httpclient的依赖，commons-httpclient包含httpclient与httpcore包里部分内容      <dependency>          <groupId>commons-httpclient</groupId>          <artifactId>commons-httpclient</artifactId>          <version>3.1</version>      </dependency>如果你使用普通导jar包的Java项目，则需要的jar包除了以上之外还需要的jar有：commons-logging、commons-codec，可自行在Maven仓库下载代码：/** * Author: https://cway.top * Date: 2019/7/9 * Time: 10:35 * Description: 百度签到 */class BaiduSigner {    /**     * 百度签到     */    public static void main(String[] args) throws Exception {        PoolingHttpClientConnectionManager cm = new PoolingHttpClientConnectionManager();        cm.setMaxTotal(200);             //    设置最大连接数        cm.setDefaultMaxPerRoute(10);    //    设置每个主机的并发数//        String bduss=args[0];        String bduss = "";          //    设置自己的bduss字符 或者从args获取        JSONObject tbs = (JSONObject) JSON.parse(getTbs(bduss, cm));        if (!tbs.getString("is_login").equals("1")) {            System.out.println("可能cookie失效咯");            return;        }        System.out.println("登录成功>>>>>");        String tbstr = tbs.getString("tbs");//        System.out.println(vipSign(tbstr, bduss, cm)); //vip一键签到 一般不需要        JSONObject jo = (JSONObject) JSON.parse(getForums(bduss, cm));        JSONObject forum_list = jo.getJSONObject("forum_list");        JSONArray jsonArray = forum_list.getJSONArray("non-gconforum");        System.out.println("获取列表成功>>>>>");        int n = 0;        int count = 0;        for (Object o : jsonArray) {            System.out.println("==========第" + ++n + "个==========");            JSONObject forum = (JSONObject) JSON.toJSON(o);            String id = forum.getString("id");            String name = forum.getString("name");            System.out.println("正在签到" + name + "：");            String signResult = signForums(name, id, tbstr, bduss, cm);            JSONObject result = (JSONObject) JSON.parse(signResult);            if (signResult.contains("error_code") && signResult.contains("error_msg")) {                System.out.println(result.getString("error_msg"));                continue;            }            JSONObject user_info = result.getJSONObject("user_info");            System.out.println("签到成功!经验+" + user_info.getString("sign_bonus_point") + ",今天第" + user_info.getString("user_sign_rank") + "个签到");            count++;        }        System.out.println("共签到成功" + count + "个贴吧");    }    /**     * 获取贴吧状态码 tbs     */    public static String getTbs(String bduss, PoolingHttpClientConnectionManager cm) throws Exception {        String header = "Cookie=" + "BDUSS=" + bduss;        return postClient("http://tieba.baidu.com/dc/common/tbs", header, "", cm).getResponseStr();    }    /**     * 获取所有关注贴吧     */    public static String getForums(String bduss, PoolingHttpClientConnectionManager cm) throws Exception {        String header = new StringBuilder().append("Cookie=BDUSS=").append(bduss).append("&")                .append("Content-Type=application/x-www-form-urlencoded&Charset=UTF-8&net=3&")                .append("User-Agent=bdtb for Android 8.4.0.1&Connection=Keep-Alive&Accept-Encoding=gzip&")                .append("Host=c.tieba.baidu.com").toString();        String md5Hex = DigestUtils.md5Hex(new StringBuilder().append("BDUSS=").append(bduss)                .append("_client_version=8.1.0.4page_no=1page_size=100tiebaclient!!!")                .toString());        String body = new StringBuilder().append("BDUSS=").append(bduss).append("&")                .append("_client_version=8.1.0.4&page_no=1&page_size=100&sign=")                .append(md5Hex).toString();        return postClient("http://c.tieba.baidu.com/c/f/forum/like", header, body, cm).getResponseStr();    }    /**     * 签到     */    public static String signForums(String name, String id, String tbs, String bduss, PoolingHttpClientConnectionManager cm) throws Exception {        String header = new StringBuilder().append("Cookie=BDUSS=").append(bduss).append("&")                .append("Content-Type=application/x-www-form-urlencoded&Charset=UTF-8&net=3&")                .append("User-Agent=bdtb for Android 8.4.0.1&Connection=Keep-Alive&Accept-Encoding=gzip&")                .append("Host=c.tieba.baidu.com").toString();        String md5Hex = DigestUtils.md5Hex(new StringBuilder().append("BDUSS=").append(bduss)                .append("fid=" + id + "kw=" + name + "tbs=" + tbs + "tiebaclient!!!")                .toString());        String body = new StringBuilder().append("BDUSS=").append(bduss)                .append("&fid=").append(id).append("&kw=").append(name)                .append("&sign=").append(md5Hex).append("&tbs=").append(tbs).toString();        return postClient("http://c.tieba.baidu.com/c/c/forum/sign", header, body, cm).getResponseStr();    }    /**     * VIP签到     */    public static String vipSign(String tbs, String bduss, PoolingHttpClientConnectionManager cm) throws Exception {        String firefoxHeader =                "Content-Type: application/x-www-form-urlencoded\n" +                        "Charset: UTF-8\n" +                        "net: 3\n" +                        "User-Agent: bdtb for Android 8.4.0.1\n" +                        "Connection: Keep-Alive\n" +                        "Accept-Encoding: gzip\n" +                        "Host: c.tieba.baidu.com";        firefoxHeader = firefoxHeader.replaceAll(": ", "=").replaceAll("\n", "&");        System.out.println("火狐：" + firefoxHeader);        String header = new StringBuilder().append("Cookie=BDUSS=").append(bduss).append("&")                .append(firefoxHeader).toString();        String body = new StringBuilder().append("ie=utf-8&tbs=").append(tbs).toString();        return postClient("http://tieba.baidu.com/tbmall/onekeySignin1", header, body, cm).getResponseStr();    }    /**     * post封装     *     * @param url    请求URL     * @param header 请求头     * @param body   请求体     * @param cm     cm连接池     * @return 返回Response与页面字符     * @throws Exception     */    public static ResponseVo postClient(String url, String header, String body, PoolingHttpClientConnectionManager cm) throws Exception {        CloseableHttpClient client = HttpClients.custom().setConnectionManager(cm).build();        HttpPost httpPost = new HttpPost(url);        if (StringUtils.isNotBlank(header)) {            for (Map.Entry<String, String> entry : covertParam(header)) {                httpPost.addHeader(entry.getKey(), entry.getValue());            }        }        List<NameValuePair> pairs = new ArrayList<>();        if (StringUtils.isNotBlank(body)) {            for (Map.Entry<String, String> entry : covertParam(body)) {                pairs.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));            }        }        UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(pairs, "utf-8");        httpPost.setEntity(formEntity);        String content = null;        CloseableHttpResponse response = null;        ResponseVo responseVo = null;        try {            //使用HttpClient发起请求            response = client.execute(httpPost);            //判断响应状态码是否为200            if (response.getStatusLine().getStatusCode() == 200) {                //如果为200表示请求成功，获取返回数据                content = EntityUtils.toString(response.getEntity(), "UTF-8");                responseVo = new ResponseVo().setResponse(response).setResponseStr(content);            }        } catch (Exception e) {            e.printStackTrace();        } finally {            //释放连接            if (response == null) {                try {                    response.close();                } catch (IOException e) {                    e.printStackTrace();                }            }        }        return responseVo;    }    /**     * 校验、转换参数     */    public static Set<Map.Entry<String, String>> covertParam(String params) throws Exception {        String[] paramses;        if (params.contains("=") && params.contains("&")) {            paramses = params.split("&");        } else if (params.contains("=") && !params.contains("&")) {            paramses = new String[1];            paramses[0] = params;        } else {            throw new Exception("参数请确保都为键值对形式");        }        Map<String, String> map = new HashMap<>();        for (String s : paramses) {            String[] ss = s.split("=");            map.put(ss[0], s.substring(ss[0].length() + 1));        }        return map.entrySet();    }}/** * 响应结果实体类 */class ResponseVo {    private String responseStr;    private CloseableHttpResponse response;    public ResponseVo(String responseStr, CloseableHttpResponse response) {        this.responseStr = responseStr;        this.response = response;    }    public ResponseVo() {    }    public String getResponseStr() {        return responseStr;    }    public ResponseVo setResponseStr(String responseStr) {        this.responseStr = responseStr;        return this;    }    public CloseableHttpResponse getResponse() {        return response;    }    public ResponseVo setResponse(CloseableHttpResponse response) {        this.response = response;        return this;    }}以下是非Maven版，即导jar包的版本，可以用cmd启动，试用期请编辑cmd文件中内容，另附源码：链接：https://pan.baidu.com/s/1mqWEYzYrxBYVqxrq-wON3g 提取码：fq91 复制这段内容后打开百度网盘手机App，操作更方便哦