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javascript - 在 javascript 中使用 API v3 检索 Google 日历事件

转载 作者：数据小太阳 更新时间：2023-10-29 05:52:06 26 4
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去年我使用这里找到的代码 http://gdata-javascript-client.googlecode.com/svn/trunk/samples/calendar/simple_sample/simple_sample.html从公共(public) Google 日历的“现在”检索所有事件，然后在网页中显示结果。我修改了该代码以满足我的需要(参见下面的代码)。

现在，使用 API v3，代码不再有效，我无法理解代码的哪些行已弃用以及如何更新它们。有人可以帮我处理这段代码吗？

非常感谢:-)

<body>

<script type="text/javascript" src="http://www.google.com/jsapi?key=YOUR_KEY_HERE"></script>
<script type="text/javascript">

/* Loads the Google data JavaScript client library */
google.load("gdata", "2.x");

function init() {
  // init the Google data JS client library with an error handler
  google.gdata.client.init(handleGDError);
  // load the code.google.com calendar
  loadMyCalendar();
}
/**
 * Loads the Google Event Calendar
 */
function loadMyCalendar() {
  loadCalendarByAddress('MY_ADDRESS@gmail.com'); /* address here
}

/**
 * Adds a leading zero to a single-digit number.  Used for displaying dates.
 */
function padNumber(num) {
  if (num <= 9) {
    return "0" + num;
  }
  return num;
}

/**
 * Determines the full calendarUrl based upon the calendarAddress
 * argument and calls loadCalendar with the calendarUrl value.
 *
 * @param {string} calendarAddress is the email-style address for the calendar
 */ 
function loadCalendarByAddress(calendarAddress) {
  var calendarUrl = 'https://www.google.com/calendar/feeds/' +
                    calendarAddress + 
                    '/public/full';
  loadCalendar(calendarUrl);
}

function loadCalendar(calendarUrl) {
  var service = new 
      google.gdata.calendar.CalendarService('gdata-js-client-samples-simple');
  var query = new google.gdata.calendar.CalendarEventQuery(calendarUrl);
  query.setOrderBy('starttime');
  query.setSortOrder('ascending');
  query.setFutureEvents(true);
  query.setSingleEvents(true);
  query.setMaxResults(100);
  service.getEventsFeed(query, listEvents, handleGDError);
}

    /**
 * Callback function for the Google data JS client library to call when an error
 * occurs during the retrieval of the feed. Details available depend partly
 * on the web browser, but this shows a few basic examples. In the case of
 * a privileged environment using ClientLogin authentication, there may also
 * be an e.type attribute in some cases.
 *
 * @param {Error} e is an instance of an Error 
 */
function handleGDError(e) {
  document.getElementById('jsSourceFinal').setAttribute('style', 
      'display:none');
  if (e instanceof Error) {
    /* alert with the error line number, file and message */
    alert('Error at line ' + e.lineNumber +
          ' in ' + e.fileName + '\n' +
          'Message: ' + e.message);
    /* if available, output HTTP error code and status text */
    if (e.cause) {
      var status = e.cause.status;
      var statusText = e.cause.statusText;
      alert('Root cause: HTTP error ' + status + ' with status text of: ' + 
            statusText);
    }
  } else {
    alert(e.toString());
  }
}

/**
 * Callback function for the Google data JS client library to call with a feed 
 * of events retrieved.
 *
 * Creates an unordered list of events in a human-readable form.  This list of
 * events is added into a div called 'events'.  The title for the calendar is
 * placed in a div called 'calendarTitle'
 *
 * @param {json} feedRoot is the root of the feed, containing all entries 
 */ 
function listEvents(feedRoot) {
  var entries = feedRoot.feed.getEntries();
  var eventDiv = document.getElementById('events');
  if (eventDiv.childNodes.length > 0) {
    eventDiv.removeChild(eventDiv.childNodes[0]);
                                        }	  

  var ul = document.createElement('ul');
  /* set the calendarTitle div with the name of the calendar */
  /*document.getElementById('calendarTitle').innerHTML = 
    "Calendar: " + feedRoot.feed.title.$t + "<br/><br/>";*/
  /* loop through each event in the feed */
 var len = entries.length;
 for (var i = 0; i < len; i++) {
    var entry = entries[i];
    /* contenuto e titolo sono invertiti */
    var cont = entry.getTitle().getText();
    var title = entry.getContent().getText();  /* get description notes */
   /* only events containing WORD_1 &/or WORD_2 & not containing '?' */
       if(cont.indexOf('?') == -1 && (cont.indexOf('WORD_1') > -1 || cont.indexOf('WORD_2') > -1)){
    var whereIs = entry.getLocations()[0].getValueString();
    var startDateTime = null;
    var startJSDate = null;
    var times = entry.getTimes();
    if (times.length > 0) {
      startDateTime = times[0].getStartTime();
      startJSDate = startDateTime.getDate();
    }
    var entryLinkHref = null;
    if (entry.getHtmlLink() != null) {
      entryLinkHref = entry.getHtmlLink().getHref();
    }
    var day = padNumber(startJSDate.getDate());
    var month = padNumber(startJSDate.getMonth() + 1);
    var dateString = day + "/" + month + "/" + startJSDate.getFullYear();
    if (title.indexOf(' - ') > -1) {
      cont = title.substring(0, title.indexOf(' - ')+3) + cont + " @ " + whereIs;
      title = title.substring(title.indexOf(' - ')+3);
    } else cont = "h_:_ - " + cont + " @ " + whereIs;
    var li = document.createElement('li');

    /* if we have a link to the event, create an 'a' element */
    if (entryLinkHref != null) {
      entryLink = document.createElement('a');
      entryLink.setAttribute('href', entryLinkHref);
      li.appendChild(document.createTextNode(dateString + ' - '));
   entryLink.appendChild(document.createTextNode(title));
      li.appendChild(entryLink);
      
    } else {
      li.appendChild(document.createTextNode(dateString + ' - ' + title));
    }	    

    var p = document.createElement("p");
    
    var lo = document.createElement('lo');
    lo.appendChild(document.createTextNode(cont));

	li.style.fontSize = "25px";
	lo.style.fontSize = "15px";


    /* append the list item onto the unordered list */
    ul.appendChild(li);
    ul.appendChild(lo);
    ul.appendChild(p);
    
  }
    eventDiv.appendChild(ul);
    }
}

google.setOnLoadCallback(init);
</script>

<p id="events">LOADING CALENDAR . . . . . . . . . .</p>
    </body>

最佳答案

已解决 :-) 这是使用 Google Calendar API v3 访问和显示 PUBLIC google Calendars 即将发生的事件的 javascript 代码。

<html>
    <head>
    </head>
<body bgcolor="black" text="white" link="#00ffff" vlink="green" alink="yellow">
<script>
    
var clientId = 'YOUR_CLIENT_ID HERE'; //choose web app client Id, redirect URI and Javascript origin set to http://localhost
var apiKey = 'YOUR_APIKEY_HERE'; //choose public apiKey, any IP allowed (leave blank the allowed IP boxes in Google Dev Console)
var userEmail = "YOUR_ADDRESS@gmail.com"; //your calendar Id
var userTimeZone = "YOUR_TIME_ZONE_HERE"; //example "Rome" "Los_Angeles" ecc...
var maxRows = 10; //events to shown
var calName = "YOUR CALENDAR NAME"; //name of calendar (write what you want, doesn't matter)
    
var scopes = 'https://www.googleapis.com/auth/calendar';
    
//--------------------- Add a 0 to numbers
function padNum(num) {
    if (num <= 9) {
        return "0" + num;
    }
    return num;
}
//--------------------- end    
    
//--------------------- From 24h to Am/Pm
function AmPm(num) {
    if (num <= 12) { return "am " + num; }
    return "pm " + padNum(num - 12);
}
//--------------------- end    

//--------------------- num Month to String
function monthString(num) {
         if (num === "01") { return "JAN"; } 
    else if (num === "02") { return "FEB"; } 
    else if (num === "03") { return "MAR"; } 
    else if (num === "04") { return "APR"; } 
    else if (num === "05") { return "MAJ"; } 
    else if (num === "06") { return "JUN"; } 
    else if (num === "07") { return "JUL"; } 
    else if (num === "08") { return "AUG"; } 
    else if (num === "09") { return "SEP"; } 
    else if (num === "10") { return "OCT"; } 
    else if (num === "11") { return "NOV"; } 
    else if (num === "12") { return "DEC"; }
}
//--------------------- end

//--------------------- from num to day of week
function dayString(num){
         if (num == "1") { return "mon" }
    else if (num == "2") { return "tue" }
    else if (num == "3") { return "wed" }
    else if (num == "4") { return "thu" }
    else if (num == "5") { return "fri" }
    else if (num == "6") { return "sat" }
    else if (num == "0") { return "sun" }
}
//--------------------- end

//--------------------- client CALL
function handleClientLoad() {
    gapi.client.setApiKey(apiKey);
    checkAuth();
}
//--------------------- end

//--------------------- check Auth
function checkAuth() {
    gapi.auth.authorize({client_id: clientId, scope: scopes, immediate: true}, handleAuthResult);
}
//--------------------- end

//--------------------- handle result and make CALL
function handleAuthResult(authResult) {
    if (authResult) {
        makeApiCall();
    }
}
//--------------------- end

//--------------------- API CALL itself
function makeApiCall() {
    var today = new Date(); //today date
    gapi.client.load('calendar', 'v3', function () {
        var request = gapi.client.calendar.events.list({
            'calendarId' : userEmail,
            'timeZone' : userTimeZone, 
            'singleEvents': true, 
            'timeMin': today.toISOString(), //gathers only events not happened yet
            'maxResults': maxRows, 
            'orderBy': 'startTime'});
    request.execute(function (resp) {
            for (var i = 0; i < resp.items.length; i++) {
                var li = document.createElement('li');
                var item = resp.items[i];
                var classes = [];
                var allDay = item.start.date? true : false;
                var startDT = allDay ? item.start.date : item.start.dateTime;
                var dateTime = startDT.split("T"); //split date from time
                var date = dateTime[0].split("-"); //split yyyy mm dd
                var startYear = date[0];
                var startMonth = monthString(date[1]);
                var startDay = date[2];
                var startDateISO = new Date(startMonth + " " + startDay + ", " + startYear + " 00:00:00");
                var startDayWeek = dayString(startDateISO.getDay());
                if( allDay == true){ //change this to match your needs
                    var str = [
                    '<font size="4" face="courier">',
                    startDayWeek, ' ',
                    startMonth, ' ',
                    startDay, ' ',
                    startYear, '</font><font size="5" face="courier"> @ ', item.summary , '</font><br><br>'
                    ];
                }
                else{
                    var time = dateTime[1].split(":"); //split hh ss etc...
                    var startHour = AmPm(time[0]);
                    var startMin = time[1];
                    var str = [ //change this to match your needs
                        '<font size="4" face="courier">',
                        startDayWeek, ' ',
                        startMonth, ' ',
                        startDay, ' ',
                        startYear, ' - ',
                        startHour, ':', startMin, '</font><font size="5" face="courier"> @ ', item.summary , '</font><br><br>'
                        ];
                }
                li.innerHTML = str.join('');
                li.setAttribute('class', classes.join(' '));
                document.getElementById('events').appendChild(li);
            }
        document.getElementById('updated').innerHTML = "updated " + today;
        document.getElementById('calendar').innerHTML = calName;
        });
    });
}
//--------------------- end
</script>
<script src='https://apis.google.com/js/client.js?onload=handleClientLoad'></script>
    <div id='content'>
    <h1 id='calendar' style="color:grey">LOADING . . . .</h1>
    <ul id='events'></ul>
    </div>
    <p id='updated' style="font-size:12; color:grey">updating . . . . .</p>
    </body>
</html>

关于javascript - 在 javascript 中使用 API v3 检索 Google 日历事件，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/28262674/

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