JavaHTTPS从URL获取JSON

我正在尝试接收此url的json：它可以通过浏览器访问，但是，我还没有成功，是否有人可以发布代码来执行此操作？

我正在这样尝试：

public static String getJSON(String url, int timeout) throws IOException {

    URL u = new URL(url);
    HttpURLConnection c = (HttpURLConnection) u.openConnection();
    c.setRequestMethod("GET");
    c.setRequestProperty("Content-length", "0");
    c.setUseCaches(false);
    c.setAllowUserInteraction(false);
    c.setConnectTimeout(timeout);
    c.setReadTimeout(timeout);
    c.connect();
    int status = c.getResponseCode();

    switch (status) {
        case 200:
        case 201:
            BufferedReader br = new BufferedReader(new InputStreamReader(c.getInputStream()));
            StringBuilder sb = new StringBuilder();
            String line;
            while ((line = br.readLine()) != null) {
                sb.append(line + "\n");
            }
            br.close();
            return sb.toString();
    }

    return null;
}

    URL u = new URL("https://blockchain.info/de/ticker");
    HttpsURLConnection conn = (HttpsURLConnection) u.openConnection();
    InputStream is = conn.getInputStream();
    InputStreamReader isr = new InputStreamReader(is);
    BufferedReader br = new BufferedReader(isr);

    String inputLine;

    while ((inputLine = br.readLine()) != null) {
        System.out.println(inputLine);
    }

    br.close();
    isr.close();
    is.close();
    conn.disconnect();

---

对于

https

您应该像这样使用

HttpsUrlConnection

：

public static String getJSON(String url, int timeout) throws IOException {

    URL u = new URL(url);
    HttpURLConnection c = (HttpURLConnection) u.openConnection();
    c.setRequestMethod("GET");
    c.setRequestProperty("Content-length", "0");
    c.setUseCaches(false);
    c.setAllowUserInteraction(false);
    c.setConnectTimeout(timeout);
    c.setReadTimeout(timeout);
    c.connect();
    int status = c.getResponseCode();

    switch (status) {
        case 200:
        case 201:
            BufferedReader br = new BufferedReader(new InputStreamReader(c.getInputStream()));
            StringBuilder sb = new StringBuilder();
            String line;
            while ((line = br.readLine()) != null) {
                sb.append(line + "\n");
            }
            br.close();
            return sb.toString();
    }

    return null;
}

    URL u = new URL("https://blockchain.info/de/ticker");
    HttpsURLConnection conn = (HttpsURLConnection) u.openConnection();
    InputStream is = conn.getInputStream();
    InputStreamReader isr = new InputStreamReader(is);
    BufferedReader br = new BufferedReader(isr);

    String inputLine;

    while ((inputLine = br.readLine()) != null) {
        System.out.println(inputLine);
    }

    br.close();
    isr.close();
    is.close();
    conn.disconnect();

---

问之前你有没有谷歌过？你是怎么收到的？请把密码寄出去。这不是免费的编码服务。你发布代码。