Java 连接请求响应处理

我正在尝试将从ConnectionRequest获取的响应数据写入本地Json文件，代码名为one，但我不知道从哪里开始。。。任何人对此有任何线索，请张贴您的答案

我不确定您实际想要做什么，但对于处理JSON对象，您可能希望尝试JSON.org提供的框架： 有了它，您可以将响应转换为JSON对象，然后从该对象提取数据

这是HTTP POST请求的一个示例：

    public class PostTest {
            public static void main(String[] args) {
                CloseableHttpClient httpclient = HttpClients.createDefault();

    try { 
        //This section is for creating and executing the POST-Request
        URIBuilder uriBuilder = new URIBuilder("http://www.example.com/");
        URI uri = uriBuilder.build();
        HttpPost request = new HttpPost(uri);
        HttpResponse response = httpclient.execute(request);

        //This section converts the response into a HttpEntity
        HttpEntity entity = response.getEntity();
        System.out.println(response.getStatusLine());

        //This converts the HttpEntity into a JSON Object
        if (entity != null) {
            String responseString = EntityUtils.toString(entity);
            JSONObject responseObject = responseString.getJSONObject();
        }

    catch (Exception e) {
        System.out.println(e.getMessage());
    }

如果请求成功，您现在可以从

responseObject

中提取数据，如下所示：

String fieldContent = responseObject.getString("fieldName");
System.out.println("Example field: " + fieldContent);

其中，

fieldName

表示在

responseObject

---

我意识到这可能不是您想要的场景，但我希望它能给您一个想法。

下面是一个使用

ConnectionRequest.setDestinationFile（）

将内容下载到本地文件的示例

private static boolean downloadUrlTo(String url, String fileName, boolean showProgress, boolean background, boolean storage, ActionListener callback) {
        ConnectionRequest cr = new ConnectionRequest();
        cr.setPost(false);
        cr.setFailSilently(true);
        cr.setDuplicateSupported(true);
        cr.setUrl(url);
        if(callback != null) {
            cr.addResponseListener(callback);
        }
        if(storage) {
            cr.setDestinationStorage(fileName);
        } else {
            cr.setDestinationFile(fileName);
        }
        if(background) {
            NetworkManager.getInstance().addToQueue(cr);
            return true;
        } 
        if(showProgress) {
            InfiniteProgress ip = new InfiniteProgress();
            Dialog d = ip.showInifiniteBlocking();
            NetworkManager.getInstance().addToQueueAndWait(cr);
            d.dispose();
        } else {
            NetworkManager.getInstance().addToQueueAndWait(cr);
        }
        return cr.getResponseCode() == 200;
    }

String fspath = FileSystemStorage.getInstance().getAppHomePath();
String url = "http://example.com/getSomeJSON.php";

ConnectionRequest cr = new ConnectionRequest(url, false);
cr.setDestinationFile(fspath + "mylocalfile.json");
NetworkManager.getInstance().addToQueue(cr);

---

以下代码将从服务器获取JSON对象并将其保存到本地文件

private static boolean downloadUrlTo(String url, String fileName, boolean showProgress, boolean background, boolean storage, ActionListener callback) {
        ConnectionRequest cr = new ConnectionRequest();
        cr.setPost(false);
        cr.setFailSilently(true);
        cr.setDuplicateSupported(true);
        cr.setUrl(url);
        if(callback != null) {
            cr.addResponseListener(callback);
        }
        if(storage) {
            cr.setDestinationStorage(fileName);
        } else {
            cr.setDestinationFile(fileName);
        }
        if(background) {
            NetworkManager.getInstance().addToQueue(cr);
            return true;
        } 
        if(showProgress) {
            InfiniteProgress ip = new InfiniteProgress();
            Dialog d = ip.showInifiniteBlocking();
            NetworkManager.getInstance().addToQueueAndWait(cr);
            d.dispose();
        } else {
            NetworkManager.getInstance().addToQueueAndWait(cr);
        }
        return cr.getResponseCode() == 200;
    }

String fspath = FileSystemStorage.getInstance().getAppHomePath();
String url = "http://example.com/getSomeJSON.php";

ConnectionRequest cr = new ConnectionRequest(url, false);
cr.setDestinationFile(fspath + "mylocalfile.json");
NetworkManager.getInstance().addToQueue(cr);

---

在Codename one中

-你是什么意思？看看Property Crossdemo@Divers