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正如我的标题所说，当我点击一个按钮搜索推文时，我收到了 400 个错误请求。下面是我的代码：

String webUrl = "https://api.twitter.com/1.1/search/tweets.json?q=%23freebandnames&since_id=*****&max_id=*****&result_type=mixed&count=4";
public static String getSearchDetails(String webUrl)
        throws ClientProtocolException, IOException {
    StringBuilder builder = new StringBuilder();
    try {
        URI url = new URI(webUrl);
        HttpClient client = new DefaultHttpClient();
        HttpGet httpGet = new HttpGet(url);
        HttpResponse response = client.execute(httpGet);
        StatusLine statusLine = response.getStatusLine();
        int statusCode = statusLine.getStatusCode();
        if (statusCode == 200) {
            HttpEntity entity = response.getEntity();
            InputStream content = entity.getContent();
            BufferedReader reader = new BufferedReader(
                    new InputStreamReader(content));
            String line;
            while ((line = reader.readLine()) != null) {
                builder.append(line);
            }
        } else {
            return null;
        }
    } catch (ClientProtocolException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    } catch (URISyntaxException e) {
        e.printStackTrace();
    }
    String responseWS = builder.toString();
    return responseWS;
}

400 Bad Request 是由于用户未通过身份验证。如何以这样的方式形成 url，用户将使用 Consumer Key、Consumer Secret 进行身份验证。谁能帮帮我吗...

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