小编Mic*_*yer的帖子

我想阅读Java快速入门中描述的Google电子表格

https://developers.google.com/sheets/quickstart/java

快速入门说明了如何从给定范围读取数据

.....
String range = "Class Data!A2:E";
ValueRange response = service.spreadsheets().values()
        .get(spreadsheetId, range)
        .execute();

List<List<Object>> values = response.getValues();
....

但我有一个问题,我不知道电子表格的范围.列数可以更改.那么如何在不知道范围的情况下阅读Sheet的所有数据呢？

问候

迈克尔

在这里,我在演示者中获得了一些代码示例.如何在改装调用中为onSuccess和onFailure编写测试

public void getNotifications(final List<HashMap<String,Object>> notifications){

        if (!"".equalsIgnoreCase(userDB.getValueFromSqlite("email",1))) {
            UserNotifications userNotifications =
                    new UserNotifications(userDB.getValueFromSqlite("email",1),Integer.parseInt(userDB.getValueFromSqlite("userId",1).trim()));
            Call call = apiInterface.getNotifications(userNotifications);
            call.enqueue(new Callback() {
                @Override
                public void onResponse(Call call, Response response) {
                    UserNotifications userNotifications1 = (UserNotifications) response.body();


                    if(userNotifications1.getNotifications().isEmpty()){
                        view.setListToAdapter(notifications);
                        onFailure(call,new Throwable());
                    }
                    else {
                        for (UserNotifications.Datum datum:userNotifications1.getNotifications()) {
                            HashMap<String,Object> singleNotification= new HashMap<>();
                            singleNotification.put("notification",datum.getNotification());
                            singleNotification.put("date",datum.getDate());
                            notifications.add(singleNotification);
                        }
                        view.setListToAdapter(notifications);
                    }
                }

                @Override
                public void onFailure(Call call, Throwable t) {
                    call.cancel();
                }
            });
        }
    }

}

我如何编写单元测试来涵盖这段代码的所有情况.

谢谢

当我尝试连接谷歌自定义搜索 api glassfish 时抛出 nosuchmethoderror

这就是代码

private int conn (String search)throws Exception {

    String key="mykey";
    URL url = new URL("https://www.googleapis.com/customsearch/v1?q="+search+"&cx=017576662512468239146%3Aomuauf_lfve&key="+key);
    doTrustToCertificates();
    HttpsURLConnection connection = (HttpsURLConnection) url.openConnection();
    connection.setDoOutput(true);
    BufferedReader reader = new BufferedReader(new InputStreamReader((connection.getInputStream())));
    String splitreader = "";
    StringBuilder ss = new StringBuilder();
    while((splitreader = reader.readLine()) != null){
        ss.append(splitreader);
}
    JSONObject json = new JSONObject(ss.toString());
    JSONObject jsonrequest = json.getJSONObject("queries").getJSONArray("request").getJSONObject(0);
    return jsonrequest.getInt("totalResults");
    }


 public void doTrustToCertificates() throws Exception {
    Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
    TrustManager[] trustAllCerts = new TrustManager[]{
            new X509TrustManager() {
                public X509Certificate[] getAcceptedIssuers() …

我正在使用异步RFC调用在SAP中进行一些并行工作。在这里您可以看到我的伪代码。

* class variable
data: gv_counter type i .

....

method start_tasks .

    do 10 times .

        call function 'my_remote_function'
            starting new task task_identifier
            calling task_finish on end of task .

    enddo .

    wait for asynchronous tasks until gv_counter eq 10 .    

endmethod .

.....

method task_finish .

    gv_counter = gv_counter + 1 .

endmethod .

如您所见，我开始了10个过程，然后等到它们全部完成为止。

我的问题是关于方法task_finish和对全局类变量的访问gv_counter。如何确保对变量的访问gv_counter是同步的？

例如在Java中，我会做类似的事情：

synchronized {
    gv_counter += 1 ;
}