http摘要认证

CredentialsProvider credsProvider = new BasicCredentialsProvider();
        credsProvider.setCredentials(new org.apache.http.auth.AuthScope( "ip", port),
                new org.apache.http.auth.UsernamePasswordCredentials("username", "pwd"));
        CloseableHttpClient httpClient = HttpClients.custom().setDefaultCredentialsProvider(credsProvider).build();
        String strUrl = "/ISAPI/System/streamMedia?format=json&devIndex="+uuid;
        HttpPost post = new HttpPost("url"+strUrl);