HttpClient加JSON保持登陆状态浏览知乎

保持着cookie，就意味着你保持着自己的登陆状态，这里省略了获取cookie的状态，我是用Chrome中的EditThisCooike

把其中的cookie信息导入到json文件中

像这样，然后提取cookie用json-lib，有个较坑的bug就是依赖包，我放张图，给大家看我的json包，有两个包不能用最新的，不然无法运行。

用chrome查看request的头部信息，来设置信息

最后贴上代码

public class zhihu {    public static void main(String[] args) {        RequestConfig requestConfig = RequestConfig.custom().setCookieSpec(CookieSpecs.STANDARD_STRICT).build();//设置浏览器模式        CloseableHttpClient client = HttpClients.custom().setDefaultRequestConfig(requestConfig).build();        try {            HttpGet get = new HttpGet("https://www.zhihu.com/");            //如果把页面打印到控制台上，会有姓名，和进入主页等，如果不保持状态，会到输入账号密码的页面//根据chrome设置的头部            get.setHeader("Accept-Language","en-US,en;q=0.8");            get.setHeader("User-Agent","Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.71 Safari/537.36");            //json分析            String json  = ReadFile("/Users/wang/Documents/cookie.json");            JSONArray jsonArray = JSONArray.fromObject(json);            int size = jsonArray.size();            StringBuilder cookie = new StringBuilder();            for (int i=0;i<size;i++){                JSONObject jsonObject = jsonArray.getJSONObject(i);                //设置cookie                cookie.append(jsonObject.get("name"));                cookie.append("=");                cookie.append(jsonObject.get("value"));                cookie.append("; ");            }            System.out.println(cookie);            get.setHeader("Cookie",cookie.toString());            HttpResponse response = client.execute(get);            HttpEntity httpEntity = response.getEntity();            System.out.println(EntityUtils.toString(httpEntity));            System.out.println(response.getStatusLine().getReasonPhrase());        } catch (IOException e) {            e.printStackTrace();        }    }    //读取json文件的内容    public static String ReadFile(String Path) {        String laststr = "";        File file = new File(Path);        try {            BufferedReader bufferedReader = new BufferedReader(new FileReader(file));            String str = null;            while ((str = bufferedReader.readLine()) != null) {                laststr = laststr + str;            }            bufferedReader.close();        } catch (FileNotFoundException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }        return laststr;    }}

进入成功结果

当我注释掉设置cookie的语句时再发送请求得道到