Question

我在app中使用基本正宗的http连接。应用程序在具有更高版本的设备上正确运行finr。我也搜索了解决方案，它对我没用。这是我的连接代码

public static String executeHttpPost(Activity activity, String url,
                                     ArrayList<NameValuePair> postParameters) {
    String value = "{\"status\":false,\"message\":\"Server Timeout, connection problem, Please try later\"}";
    try {
        final String basicAuth = "Basic " + Base64.encodeToString(
                ("abc" + ":" + "abcd").getBytes(), Base64.NO_WRAP);
        networkConnection = new NetworkConnection();
        if (networkConnection.isOnline(activity)) {
            postParameters.add(new BasicNameValuePair("device_type","android"));
            HttpClient client = getNewHttpClient();
            HttpPost post = new HttpPost(url);

            try {
                UrlEncodedFormEntity entity = new UrlEncodedFormEntity(postParameters, "UTF-8");


                post.setEntity(entity);

                post.setHeader("Authorization",basicAuth);
                post.setHeader("some-parameter","abc");
                org.apache.http.HttpResponse result = client.execute(post);
                value = EntityUtils.toString(result.getEntity());
            }catch (Exception e){}
            String s = "";
            for (NameValuePair param : postParameters) {
                s = s + param.getName() + " = " + param.getValue() + " ";
            }
            if (value != null) {
                WebUrl.ShowLog("From " + url +" parameters "+s
                        + " Response : " + value.trim());

                return value.trim();
            } else {

                return value;
            }
        } else {
            activity.startActivity(new Intent(activity, NoInternet.class));
            activity.finish();
            return "{\"status\":false,\"message\":\"\"}";

        }

    } catch (Exception e) {
        e.printStackTrace();

        return value;
    }
}

This is the only link I found, but it didn't work for me

Answer 1

您应该使用Google Volley与服务器建立连接。有很多方法可以获得连接，但在Android开发中使用“Google Volley”非常简单，可靠，并且它作为依赖项与您的软件包捆绑在一起。因此，永远不要担心许多旧的和许多当前和即将推出的Android版本的兼容性。

我在5年前使用它，它正在所有主要平台上工作。非常容易编程。

看看：

final TextView mTextView = (TextView) findViewById(R.id.text);
// Instantiate the RequestQueue.
RequestQueue queue = Volley.newRequestQueue(this);
String url ="http://www.google.com";

// Request a string response from the provided URL.
StringRequest stringRequest = new StringRequest(Request.Method.GET, url, new Response.Listener<String>()
{
    @Override
    public void onResponse(String response)
    {
        // Display the first 500 characters of the response string.
        mTextView.setText("Response is: "+ response.substring(0,500));
    }
}, new Response.ErrorListener() 
{
    @Override
    public void onErrorResponse(VolleyError error)
    {
        mTextView.setText("That didn't work!");
    }
});
// Add the request to the RequestQueue.
queue.add(stringRequest);

它有多简单。

基本身份验证服务器不支持jellybeans和kitkat

1 个答案: