http请求认证账号密码

private static String Post(String url) throws IOException{
    CloseableHttpClient client = HttpClients.createDefault();
    HttpPost post = new HttpPost(url);
    ProtocolVersion protocolVersion = post.getProtocolVersion();
    System.out.println(protocolVersion.getProtocol());
    try {
        //该网页需要认证（用户名、密码）
        HttpClientContext context = new HttpClientContext();
        CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
        credentialsProvider.setCredentials(AuthScope.ANY, new UsernamePasswordCredentials(admin, password));
        context.setCredentialsProvider(credentialsProvider);
        CloseableHttpResponse execute = client.execute(post, context);
        //----以下一样
        HttpEntity entity = execute.getEntity();
        InputStream in = entity.getContent();
        StringBuilder builder = new StringBuilder();
        BufferedReader bufreader = new BufferedReader(new InputStreamReader(in));
        for (String temp = bufreader.readLine(); temp != null; temp = bufreader.readLine()) {
            builder.append(temp);
        }
        return builder.toString();
    } catch (ClientProtocolException e) {
        throw new RuntimeException(e);
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

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