Question

我正构建一个单页Web应用程序，向Flickr发出AJAX请求（使用Flickr API）。当我使用curl或postman尝试请求时，它可以工作。当我使用AJAX（jQuery）从Chrome中尝试它时，我得到200响应状态为＆＃34; OK＆＃34;，但总是0结果。如果我使用完全相同的URL（字面上复制和粘贴）到postman / curl我得到结果。我必须做一些愚蠢的事情，但我无法弄清楚。

JavaScript代码：

var photoQueryURL = 'https://api.flickr.com/services/rest/?' + $.param({
    'method': 'flickr.photos.search',
    'api_key': flickrAPIKey,
    'text': title,
    'tags': title,
    'format': 'json',
    'nojsoncallback': '1'
});
// AJAX Query:
$.ajax(photoQueryURL)
    .done(function(data) {
        console.log('Sucessful query.');
        console.log(data);
    })
    .fail(function(err) {
        console.log('Failed query.');
        console.log(err);
    });

AJAX查询：

Request URL:https://api.flickr.com/services/rest/?method=flickr.photos.search&api_key=<my-key>&text=Alex%27s%20Pizzeria&tags=Alex%27s%20Pizzeria&format=json&nojsoncallback=1
Request Method:GET
Status Code:200 
Remote Address:69.147.64.33:443
Referrer Policy:no-referrer-when-downgrade
Response Headers
access-control-allow-origin:*
age:2
cache-control:private
content-encoding:gzip
content-length:83
content-type:application/json
date:Sat, 28 Oct 2017 21:59:02 GMT
p3p:policyref="https://policies.yahoo.com/w3c/p3p.xml", CP="CAO DSP COR CUR ADM DEV TAI PSA PSD IVAi IVDi CONi TELo OTPi OUR DELi SAMi OTRi UNRi PUBi IND PHY ONL UNI PUR FIN COM NAV INT DEM CNT STA POL HEA PRE LOC GOV"
server:ATS
status:200
vary:Accept-Encoding
via:http/1.1 fts126.flickr.bf1.yahoo.com (ApacheTrafficServer [cMsSf ]), http/1.1 e22.ycpi.cha.yahoo.com (ApacheTrafficServer [cMsSf ])
x-content-type-options:nosniff
x-frame-options:SAMEORIGIN
x-served-by:www-bm006.flickr.bf1.yahoo.com
Request Headers
:authority:api.flickr.com
:method:GET
:path:/services/rest/?method=flickr.photos.search&api_key=<my-key>&text=Alex%27s%20Pizzeria&tags=Alex%27s%20Pizzeria&format=json&nojsoncallback=1
:scheme:https
accept:application/json, text/javascript, */*; q=0.01
accept-encoding:gzip, deflate, br
accept-language:en-US,en;q=0.9
cache-control:no-cache
origin:null
pragma:no-cache
user-agent:Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.75 Safari/537.36
Query String Parameters
view source
view URL encoded
method:flickr.photos.search
api_key:<my-key>
text:Alex's Pizzeria
tags:Alex's Pizzeria
format:json
nojsoncallback:1

AJAX响应：

{"photos":{"page":1,"pages":0,"perpage":100,"total":"0","photo":[]},"stat":"ok"}

使用curl查询：

curl -k "https://api.flickr.com/services/rest/?method=flickr.photos.search&api_key=<my-key>&text=Alex%27s%20Pizza&tags=Alex%27s%20Pizza&format=json&nojsoncallback=1"

回复（通知5结果）：

{"photos": {"page": 1, "pages": 1, "perpage": 100, "total": "5",
"photo": [{"id":(...)}]},
"stat":"ok"}

建议？

- 吉姆

Answer 1

您的代码是正确的。我已经制作了一个Flickr帐户来重现您的问题。

我添加了此代码以打印结果：

var len = data.photos.photo.length, html = "";
if (len > 0) {
  var i;
  for (i = 0; i < len; i++) {
    html += "<li>";
    html += data.photos.photo[i].title;
    html += "</li>";
  }
  $("#list").html(html);
}

这样的事情：

＆＃13;

(function() {
  $("#form").on("submit", function(e) {
    var flickrAPIKey = "39417c145483a7fb3ee91c5fe5bc93fe",
      title = $("#txtInput").val();
    var photoQueryURL = 'https://api.flickr.com/services/rest/?' + $.param({
      'method': 'flickr.photos.search',
      'api_key': flickrAPIKey,
      'text': title,
      'tags': title,
      'format': 'json',
      'nojsoncallback': '1'
    });
    // AJAX Query:
    $.ajax(photoQueryURL)
      .done(function(data) {
        console.log('Sucessful query.');
        var len = data.photos.photo.length, html = "";
        if (len > 0) {
          var i;
          for (i = 0; i < len; i++) {
            html += "<li>";
            html += data.photos.photo[i].title;
            html += "</li>";
          }
          $("#list").html(html);
        }
      })
      .fail(function(err) {
        console.log('Failed query.');
        console.log(err);
      });
    e.preventDefault();
  });
})();

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<form id="form">
  <label for="txtInput">Input:</label>
  <input id="txtInput" type="text" />
  <button type="submit">Send</button>
  <hr />
  <ul id="list"></ul>
</form>

＆＃13;

Access-Control-Allow-Origin: *标题存在。

Answer 2

＆＃13;

$(function() {
  //store public feed in URL
  var URL = "https://api.flickr.com/services/feeds/photos_public.gne?jsoncallback=?";
  //create searchInfo object
  var searchInfo = {
    
    tags : $('#searchfield').val(),
    tagmode : "any",
    format : "json"
  };
  //when search button is clicked
  $('#searchbtn').click(function(){
    //update the search info object
    searchInfo.tags = $('#searchfield').val();
    //get JSON
    $.getJSON(URL,searchInfo,function(data){
        var photoHTML = '';
        //loop through each photo object
        $.each(data.items, function(i, photo) {
          photoHTML += '<span class ="image">';
          photoHTML += '<a href="' + photo.link 
                        + '">';
          photoHTML += '<img src ="' +         photo.media.m.replace('_m','_s')+'"></a></span>';
         
       });// end each
     
      //add the HTML to the page
     $('#images').append(photoHTML);
       
      
    }); // end get JSON
    
  }); //end click
  
}); //end ready

＆＃13;

.image {
  padding: 10px;
  margin: 0 30px 30px 0;
}

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<!DOCTYPE html>
<html>
  <head>
    <title>Flickr Search for example kitten :)</title>
  </head>
  <body>
    <h1>Flickr Search</h1>
    <h4>Search for any image here!</h4>
    <input type="text" id="searchfield" />
    <button id ="searchbtn">Search</button>
    
    <div id="images">
    </div>
  </body>
</html>

＆＃13;

Answer 3

/*

  Create an api to get an API KEY here:
  https://www.flickr.com/services/apps/create/

  Documentation for searching photos:
  https://www.flickr.com/services/api/flickr.photos.search.html

  */

  $('.fetch-button').click(function() {
    var $button = $(this);
    var photoUrl;

    $button.text('Loading...'); // Set text of button to loading
    $button.attr('disabled', 'disabled'); // Disable button
    $('.output').empty(); // Clear out results
    
    //what you are looking for
    var lookingfor = $('#wording').prop('value');
    var perpage = $('#per_page').prop('value');
    var page = $('#page').prop('value');
    var lowlang = $('#lang').prop('value');
    var lang = lowlang.toLowerCase() + '-' + $('#lang').prop('value');
    var api_key = 'e0246bb8460f3650cef44a21d89d4c60';
    var sort = $('#sort').prop('value');
    var content_type = $('#content_type').prop('value');
    
    
    
    console.log(lang)
    
    $.ajax({
      method: 'GET',
      url: 'https://api.flickr.com/services/rest?sort=' + sort + '&parse_tags=1&content_type=' + content_type + '&extras=can_comment,count_comments,count_faves,description,isfavorite,license,media,needs_interstitial,owner_name,path_alias,realname,rotation,url_c,url_l,url_m,url_n,url_q,url_s,url_sq,url_t,url_z&per_page=' + perpage + '&page=' + page + '&lang=' + lang + '&text=' + lookingfor + '&viewerNSID=&method=flickr.photos.search&csrf=&api_key=' + api_key + '&format=json&hermes=1&hermesClient=1&reqId=e626c8a6&nojsoncallback=1'
    }).done(function(data) {
      console.log(data);
      if (!data.photos) {
        return;
      }
      $.each(data.photos.photo, function(key, photo) {
        photoUrl = 'https://farm' +
          photo.farm +
          '.staticflickr.com/' +
          photo.server +
          '/' +
          photo.id +
          '_' +
          photo.secret +
          '_q.jpg';
        $('.output').append('<img src="' + photoUrl + '">');
      });

    }).always(function() {
      $button.text('Fetch Data'); // Reset button text
      $button.removeAttr('disabled'); // Enable button to be clicked again
    });
  });

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.0/jquery.min.js"></script>
<div class="wrapper">
  <h1>Flickr API own by fetching all call rest api</h1>
  <input placeholder="search" id="wording" type="text" value="" name="search"/>
  <input placeholder="user_id" id="user_id" type="text" value="" name="user_id"/>
  <input placeholder="tags" id="tags" type="text" value="" name="tags"/>
  <input placeholder="tag_mode" id="tag_mode" type="text" value="" name="tag_mode"/>
  <input placeholder="text" id="text" type="text" value="" name="text"/>
  <input placeholder="min_upload_date" id="min_upload_date" type="text" value="" name="min_upload_date"/>
  <input placeholder="max_upload_date" id="max_upload_date" type="text" value="" name="max_upload_date"/>
  <input placeholder="min_taken_date" id="min_taken_date" type="text" value="" name="min_taken_date"/>
  <input placeholder="max_taken_date" id="max_taken_date" type="text" value="" name="max_taken_date"/>
  <input placeholder="license" id="license" type="text" value="" name="license"/>
  <input placeholder="sort" id="sort" type="text" value="relevance" name="sort"/>
  <input placeholder="privacy_filter" id="privacy_filter" type="text" value="" name="privacy_filter"/>
  <input placeholder="bbox" id="bbox" type="text" value="" name="bbox"/>
  <input placeholder="accuracy" id="accuracy" type="text" value="" name="accuracy"/>
  <input placeholder="safe_search" id="safe_search" type="text" value="" name="safe_search"/>
  <input placeholder="content_type" id="content_type" type="text" value="7" name="content_type"/>
  <input placeholder="machine_tags" id="machine_tags" type="text" value="" name="machine_tags"/>
  <input placeholder="machine_tag_mode" id="machine_tag_mode" type="text" value="" name="machine_tag_mode"/>
  <input placeholder="group_id" id="group_id" type="text" value="" name="group_id"/>
  <input placeholder="contacts" id="contacts" type="text" value="" name="contacts"/>
  <input placeholder="woe_id" id="woe_id" type="text" value="" name="woe_id"/>
  <input placeholder="place_id" id="place_id" type="text" value="" name="place_id"/>
  <input placeholder="media" id="media" type="text" value="" name="media"/>
  <input placeholder="has_geo" id="has_geo" type="text" value="" name="has_geo"/>
  <input placeholder="geo_context" id="geo_context" type="text" value="" name="geo_context"/>
  <input placeholder="lat" id="lat" type="text" value="" name="lat"/>
  <input placeholder="lon" id="lon" type="text" value="" name="lon"/>
  <input placeholder="radius" id="radius" type="text" value="" name="radius"/>
  <input placeholder="radius_units" id="radius_units" type="text" value="" name="radius_units"/>
  <input placeholder="is_commons" id="is_commons" type="text" value="" name="is_commons"/>
  <input placeholder="in_gallery" id="in_gallery" type="text" value="" name="in_gallery"/>
  <input placeholder="is_getty" id="is_getty" type="text" value="" name="is_getty"/>
  <input placeholder="extras" id="extras" type="text" value="" name="extras"/>
  <input placeholder="per_page" id="per_page" type="text" value="25" name="per_page"/>
  <input placeholder="page" id="page" type="text" value="1" name="page"/>
  <select id="lang" name="lang" data-placeholder="Choose a Language...">
  <option value="AF">Afrikanns</option>
  <option value="SQ">Albanian</option>
  <option value="AR">Arabic</option>
  <option value="HY">Armenian</option>
  <option value="EU">Basque</option>
  <option value="BN">Bengali</option>
  <option value="BG">Bulgarian</option>
  <option value="CA">Catalan</option>
  <option value="KM">Cambodian</option>
  <option value="ZH">Chinese (Mandarin)</option>
  <option value="HR">Croation</option>
  <option value="CS">Czech</option>
  <option value="DA">Danish</option>
  <option value="NL">Dutch</option>
  <option value="EN" selected>English</option>
  <option value="ET">Estonian</option>
  <option value="FJ">Fiji</option>
  <option value="FI">Finnish</option>
  <option value="FR">French</option>
  <option value="KA">Georgian</option>
  <option value="DE">German</option>
  <option value="EL">Greek</option>
  <option value="GU">Gujarati</option>
  <option value="HE">Hebrew</option>
  <option value="HI">Hindi</option>
  <option value="HU">Hungarian</option>
  <option value="IS">Icelandic</option>
  <option value="ID">Indonesian</option>
  <option value="GA">Irish</option>
  <option value="IT">Italian</option>
  <option value="JA">Japanese</option>
  <option value="JW">Javanese</option>
  <option value="KO">Korean</option>
  <option value="LA">Latin</option>
  <option value="LV">Latvian</option>
  <option value="LT">Lithuanian</option>
  <option value="MK">Macedonian</option>
  <option value="MS">Malay</option>
  <option value="ML">Malayalam</option>
  <option value="MT">Maltese</option>
  <option value="MI">Maori</option>
  <option value="MR">Marathi</option>
  <option value="MN">Mongolian</option>
  <option value="NE">Nepali</option>
  <option value="NO">Norwegian</option>
  <option value="FA">Persian</option>
  <option value="PL">Polish</option>
  <option value="PT">Portuguese</option>
  <option value="PA">Punjabi</option>
  <option value="QU">Quechua</option>
  <option value="RO">Romanian</option>
  <option value="RU">Russian</option>
  <option value="SM">Samoan</option>
  <option value="SR">Serbian</option>
  <option value="SK">Slovak</option>
  <option value="SL">Slovenian</option>
  <option value="ES">Spanish</option>
  <option value="SW">Swahili</option>
  <option value="SV">Swedish </option>
  <option value="TA">Tamil</option>
  <option value="TT">Tatar</option>
  <option value="TE">Telugu</option>
  <option value="TH">Thai</option>
  <option value="BO">Tibetan</option>
  <option value="TO">Tonga</option>
  <option value="TR">Turkish</option>
  <option value="UK">Ukranian</option>
  <option value="UR">Urdu</option>
  <option value="UZ">Uzbek</option>
  <option value="VI">Vietnamese</option>
  <option value="CY">Welsh</option>
  <option value="XH">Xhosa</option>
</select>
 
  
  <button class="fetch-button">Fetch Data</button>
  <div class="output">
  </div>
</div>

对Flickr API的AJAX请求返回0结果，但与curl / postman一起使用

3 个答案: