好吧,我仍然相信我的旧答案澄清了一个简单的问题,似乎有很多抱怨。无论如何,让我照顾你。 :)
第一页:我发现您不能真正从第一页转到“上一页”。理想情况下,我应该。因此,这是我提交的一个错误,您可能需要关注:https://developers.facebook.com/bugs/391562790938294?browse=search_50fcac3ce094e7068176315
第二:如果这是设计使然,你不能从第一页回到“上一个”(因为那里没有上一个),但你肯定可以去到“下一步”。但是,由于 API 的行为类似于光标,并且您已经向前移动,现在您的“上一个”页面可以工作了。
问题的答案:
我得到一个 URL 作为上一页,但我不知道如何从该 URL 进行 javascript FB.api 调用。有什么想法吗?
是的,您可以调用 FB.api。但我建议您改为进行 HTTP GET 调用,因为它更容易。另外,请注意,previous 可能会返回空数组,例如 {"data":[]}
如何获取上一页/下一页?
在这里,我正在编写一个使用 jQuery 的小代码。如果不想看代码,有两种方法:
- 使用上一个/下一个 URL 并发出 HTTP GET 请求。其中,如果不为空,将带有下一组“上一个”、“下一个”链接。
- 解析 URL,获取 JSON 格式的查询字符串并将其传递给
FB.api。我使用jQuery BBQ pluging 进行解析。
重要提示:在示例中,我使用“下一个”URL,因为在第一个请求中,如果我使用“上一个”,它会给出空 JSON,而不是给出过去的帖子。但是,一旦我向前移动了几页,我就可以使用“上一个”URL。与 Google 搜索结果一样,您不能在第 1 页上转到上一页,但您可以从任何 > 1 页开始(参见下面的示例 3)。这称为分页。
示例 1:使用 HTTP GET 的代码(首选):(我将加载 3 个帖子/页面并查看三个下一页)
<html>
<head>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8/jquery.min.js"></script>
<script type="text/javascript" src="http://connect.facebook.net/en_US/all.js"></script>
<script type="text/javascript" src="https://raw.github.com/cowboy/jquery-bbq/master/jquery.ba-bbq.min.js"></script>
<script>
var i =0;
var getPosts = function (response){
for (element in response.data){
post = response.data[element]
console.log(post.id + ": " +post.message);
}
// can i call FB.api(nextPage, getPosts); ??
if(i < 2){
nextPage = response.paging.next;
console.log(nextPage);
i++;
//Method 1: I use it.
$.get(nextPage, getPosts, "json"); //optional: $.getJSON can be use instead
}
}
$(document).ready(function(){
$('#loadPosts').bind('click', function() {
FB.api('/me/home',{since:'yesterday','limit': '3'}, getPosts);
});
})
</script>
</head>
<body>
<div id="fb-root"></div>
<script>
window.fbAsyncInit = function() {
// init the FB JS SDK
FB.init({
appId : 'XXXXXXXXXXXX', // FILL YOUR APP ID HERE!
status : true, // check the login status upon init?
cookie : true, // set sessions cookies to allow your server to access the session?
});
// Additional initialization code such as adding Event Listeners goes here
};
</script>
<button id="loadPosts">Load Posts</button>
<p>Please open developer console to see what's happening. In Firefox, you can use ctrl+shift+k, and in Chrome/Chromium use ctrl+shift+i</p>
</body>
</html>
回应:
100004192352945_156620584487686: undefined
137723270230_10152423499430231: On this day, please spare a thought for those fellow citizens, for whom I just spare a thought and do nothing else.
642965867_10151211036740868: Thanks everyone for their wishes! The wishes made my day!
https://graph.facebook.com/677811901/home?limit=3&access_token=AAACYjXGS5FQBAIR3brc2LibjBcZCi2kRJUybG8VMaaJSZARQ8SzNE7BE4PBrDIFVZB0AaVEa1dZCpX1fhCvoD2rnq8uc8OGaIFhO9uvVXAZDZD&until=1359184568
367116489976035_536776529676696: Rage. Quit. Life.
899605553_10152450871820554: undefined
367116489976035_417820828298092: undefined
https://graph.facebook.com/677811901/home?limit=3&access_token=AAACYjXGS5FQBAIR3brc2LibjBcZCi2kRJUybG8VMaaJSZARQ8SzNE7BE4PBrDIFVZB0AaVEa1dZCpX1fhCvoD2rnq8uc8OGaIFhO9uvVXAZDZD&until=1359179890
137723270230_10152423148745231: Pratibha Patil used to love the Republic Day Parade, especially the part where the visiting Chief Guest extended her an invitation to visit his/her own country.
137723270230_10152423131700231: The Kingfisher tableau at Republic Day Parade was so simple. Vijay Mallya riding a bicycle.
367116489976035_484460034950769: undefined
示例 2:使用 FB.api 的代码:(我将加载 3 个帖子/页面并查看三个下一页)
<html>
<head>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8/jquery.min.js"></script>
<script type="text/javascript" src="http://connect.facebook.net/en_US/all.js"></script>
<script type="text/javascript" src="https://raw.github.com/cowboy/jquery-bbq/master/jquery.ba-bbq.min.js"></script>
<script>
var i =0;
var getPosts = function (response){
for (element in response.data){
post = response.data[element]
console.log(post.id + ": " +post.message);
}
// can i call FB.api(nextPage, getPosts); ??
if(i < 2){
nextPage = response.paging.next;
console.log(nextPage);
i++;
//Method 2: If you have to call FB.api
var params = jQuery.deparam.querystring(nextPage);
console.log(JSON.stringify(params, null, 2));
FB.api('/me/home', params, getPosts)
}
}
$(document).ready(function(){
$('#loadPosts').bind('click', function() {
FB.api('/me/home',{since:'yesterday','limit': '3'}, getPosts);
});
})
</script>
</head>
<body>
<div id="fb-root"></div>
<script>
window.fbAsyncInit = function() {
// init the FB JS SDK
FB.init({
appId : 'XXXXXXXXXXXX', // FILL YOUR APP ID HERE!
status : true, // check the login status upon init?
cookie : true, // set sessions cookies to allow your server to access the session?
});
// Additional initialization code such as adding Event Listeners goes here
};
</script>
<button id="loadPosts">Load Posts</button>
<p>Please open developer console to see what's happening. In Firefox, you can use ctrl+shift+k, and in Chrome/Chromium use ctrl+shift+i</p>
</body>
</html>
回应:
367116489976035_536776529676696: Rage. Quit. Life.
899605553_10152450871820554: undefined
367116489976035_417820828298092: undefined
{
"limit": "3",
"access_token": "AAACYjXGS5FQBAIR3brc2LibjBcZCi2kRJUybG8VMaaJSZARQ8SzNE7BE4PBrDIFVZB0AaVEa1dZCpX1fhCvoD2rnq8uc8OGaIFhO9uvVXAZDZD",
"until": "1359179890"
}
137723270230_10152423148745231: Pratibha Patil used to love the Republic Day Parade, especially the part where the visiting Chief Guest extended her an invitation to visit his/her own country.
137723270230_10152423131700231: The Kingfisher tableau at Republic Day Parade was so simple. Vijay Mallya riding a bicycle.
367116489976035_484460034950769: undefined
https://graph.facebook.com/677811901/home?limit=3&access_token=AAACYjXGS5FQBAIR3brc2LibjBcZCi2kRJUybG8VMaaJSZARQ8SzNE7BE4PBrDIFVZB0AaVEa1dZCpX1fhCvoD2rnq8uc8OGaIFhO9uvVXAZDZD&until=1359178140
{
"limit": "3",
"access_token": "AAACYjXGS5FQBAIR3brc2LibjBcZCi2kRJUybG8VMaaJSZARQ8SzNE7BE4PBrDIFVZB0AaVEa1dZCpX1fhCvoD2rnq8uc8OGaIFhO9uvVXAZDZD",
"until": "1359178140"
}
655515199_403590309726450: a good resolution to take on Republic Day
505588854_496901583686790: Love the secret world that slow motion reveals.
693811975_10151217837201976: undefined
示例 3:执行:page1 -> page2 -> page1 或 page -> next -> previous 以下代码将加载 page1,然后转到“下一页”(page2),然后来返回第 1 页,使用“上一个”
<html>
<head>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8/jquery.min.js"></script>
<script type="text/javascript" src="http://connect.facebook.net/en_US/all.js"></script>
<script type="text/javascript" src="https://raw.github.com/cowboy/jquery-bbq/master/jquery.ba-bbq.min.js"></script>
<script>
var i =0;
var getPosts = function (response){
for (element in response.data){
post = response.data[element]
console.log(post.id + ": " +post.message);
}
// can i call FB.api(nextPage, getPosts); ??
if(i < 2){
nextPage = response.paging.next;
if(i==1)
nextPage = response.paging.previous;
console.log(nextPage);
i++;
$.get(nextPage, getPosts, "json"); //optional: $.getJSON can be use instead
}
}
$(document).ready(function(){
$('#loadPosts').bind('click', function() {
FB.api('/me/home',{since:'yesterday','limit': '3'}, getPosts);
});
})
</script>
</head>
<body>
<div id="fb-root"></div>
<script>
window.fbAsyncInit = function() {
// init the FB JS SDK
FB.init({
appId : 'XXXXXXXXXXXX', // FILL YOUR APP ID HERE!
status : true, // check the login status upon init?
cookie : true, // set sessions cookies to allow your server to access the session?
});
// Additional initialization code such as adding Event Listeners goes here
};
</script>
<button id="loadPosts">Load Posts</button>
<p>Please open developer console to see what's happening. In Firefox, you can use ctrl+shift+k, and in Chrome/Chromium use ctrl+shift+i</p>
</body>
</html>
回应:
PAGE1:
367116489976035_536806916340324: How big is the Solar System?
Full infographic here: http://bit.ly/WmzfVn
137723270230_10152423534790231: "Sociologist" Ashis Nandy has claimed that most of the corrupt came from OBC/SC/ST castes.
Following this, Corrupt people have strongly condemned Nandy's attempts to divide them on caste lines. They'll be united in loot, forever.
100004192352945_156620584487686: undefined
PAGE2:
https://graph.facebook.com/677811901/home?limit=3&access_token=AAACYjXGS5FQBAKqIMyCVYjH9upK4e2bjUwLoVbbFDL0ffc0SZBTVR9MUFGV4ZCq6HBdFIadFMpLDC3ATMZCJ4GPsXWpG4qTGODavuvzLAZDZD&until=1359185659
137723270230_10152423499430231: On this day, please spare a thought for those fellow citizens, for whom I just spare a thought and do nothing else.
642965867_10151211036740868: Thanks everyone for their wishes! The wishes made my day!
367116489976035_536776529676696: Rage. Quit. Life.
PAGE1:
https://graph.facebook.com/677811901/home?limit=3&access_token=AAACYjXGS5FQBAKqIMyCVYjH9upK4e2bjUwLoVbbFDL0ffc0SZBTVR9MUFGV4ZCq6HBdFIadFMpLDC3ATMZCJ4GPsXWpG4qTGODavuvzLAZDZD&since=1359185123&__previous=1
367116489976035_536806916340324: How big is the Solar System?
Full infographic here: http://bit.ly/WmzfVn
137723270230_10152423534790231: "Sociologist" Ashis Nandy has claimed that most of the corrupt came from OBC/SC/ST castes.
Following this, Corrupt people have strongly condemned Nandy's attempts to divide them on caste lines. They'll be united in loot, forever.
100004192352945_156620584487686: undefined
老答案
使用limit、offset、since 和until 参数来实现您的目标。
参考:http://developers.facebook.com/docs/reference/api/
分页
查询连接时,有几个有用的参数可让您过滤和分页浏览连接数据:
下面应该从21st - 30th消息中获取自last week到yesterday的所有帖子(基本上,每页分页10条消息的第三页)。
FB.api(
'/me/home',
{
'since':'last week',
'limit': '10',
'offset': '20',
'until': 'yesterday'
},
getPosts
);
我刚刚测试过,它可以工作。我使用了limit=4,这是一种页面大小的东西。所以,当我从 2011 年 2 月 2 日(Unix 时间戳:1296626400)到今天使用这个获取数据时
https://graph.facebook.com/me/home?access_token=[AUTH_TOKEN]&since=1296626400&limit=4
它返回数据,加上它还返回 URL 以转到下一页
{
"data": [
<ARRAY OF POSTS HERE>
],
"paging": {
"previous": "https://graph.facebook.com/me/home?access_token=[NEW_AUTH_TOKEN]&since=1298026753&limit=4",
"next": "https://graph.facebook.com/me/home?access_token=[NEW_AUTH_TOKEN]&limit=4&until=1298023222"
}
}
您可以安全地使用 JSON 对象的previous 和next 属性跳转到下一页(或上一页)。这似乎是最简单的方法。
顺便说一句,\u00257C 需要转换为 | 才能正常工作。