Question

我在URL中使用不同的路径和查询对相同的API进行了不同的Ajax调用，但是与相同的jsonpCallback我无法更改

当我拨打一个Ajax网址时 - 一切都很好！

但是当我需要从多个获得响应时，我得到错误，导致他们立即执行。我尝试了回调，我尝试了“async：false”，我尝试“在何时返回ajax，然后完成等等 - 没有像我预期的那样工作:(

function timenow() {
  var a = new Date,
    b = a.getMinutes();
  b < 10 && (b = "0" + b);
  var c = a.getHours();
  c > 12 && (c -= 12);
  var d = c + ":" + b;
  return d
}

function ajaxCall(p, callback) {
  if (p == 1) {
    url = 'https://api.vk.com/method/wall.get?owner_id=-93100300&offset=0&count=1&filter=owner&callback=logResults'
  } else {
    url = "https://api.github.com/users/jeresig?callback=logResults"
  }
  return $.ajax({
    url: url,
    dataType: "jsonp",
    jsonp: false,
    jsonpCallback: "logResults",
    cache: true,
  }).done(function(r) {
    callback(r);
  });
}

$.when(
  ajaxCall(0, function(r) {
    console.log(r);
    console.log(r.data.avatar_url + ' ' + timenow());
  }),
  ajaxCall(1, function(r) {
    console.log(r);
    console.log(r.response[1].id + ' ' + timenow());
  }),
  ajaxCall(0, function(r) {
    console.log(r.data.bio + ' ' + timenow());
  }),
  ajaxCall(1, function(r) {
    console.log(r.response[1].id + ' ' + timenow());
  }),
  ajaxCall(0, function(r) {
    console.log(r.data.blog + ' ' + timenow());
  }),
  ajaxCall(1, function(r) {
    console.log(r.response[1].from_id + ' ' + timenow());
  }),
  ajaxCall(0, function(r) {
    console.log(r.data.company + ' ' + timenow());
  }),
  ajaxCall(1, function(r) {
    console.log(r.response[1].to_id + ' ' + timenow());
  }),
  ajaxCall(0, function(r) {
    console.log(r.data.created_at + ' ' + timenow());
  }),
  ajaxCall(1, function(r) {
    console.log(r.response[1].date + ' ' + timenow());
  }),
  ajaxCall(0, function(r) {
    console.log(r.data.email + ' ' + timenow());
  }),
  ajaxCall(1, function(r) {
    console.log(r.response[1].post_type + ' ' + timenow());
  }),
  ajaxCall(0, function(r) {
    console.log(r.data.events_url + ' ' + timenow());
  }),
  ajaxCall(1, function(r) {
    console.log(r.response[1].text + ' ' + timenow());
  }),
  ajaxCall(0, function(r) {
    console.log(r.data.followers + ' ' + timenow());
  }),
  ajaxCall(1, function(r) {
    console.log(r.response[1].is_pinned + ' ' + timenow());
  }),
  ajaxCall(0, function(r) {
    console.log(r.data.followers_url + ' ' + timenow());
  }),
  ajaxCall(1, function(r) {
    console.log(r.response[1].reposts.count + ' ' + timenow());
  }),
  ajaxCall(0, function(r) {
    console.log(r.data.following + ' ' + timenow());
  }),
  ajaxCall(1, function(r) {
    console.log(r.response[1].likes.count + ' ' + timenow());
  }),
  ajaxCall(0, function(r) {
    console.log(r.data.following_url + ' ' + timenow());
  }),
  ajaxCall(1, function(r) {
    console.log(r.response[1].comments.count + ' ' + timenow());
  }),
  ajaxCall(0, function(r) {
    console.log(r.data.gists_url + ' ' + timenow());
  })
).done(console.log('Ajaxing done ' + timenow()));

我认为问题在同一个jsonpCallback中，所以当我在ajax中使用回调时，它总是用新函数重写它，所以我收到错误。

P.S。仍然无法将异步设置为false，工作样本https://jsfiddle.net/ypmkn5k0/

<div id="log"></div>

<script>
$.ajaxSetup({ async: false});


$.ajax({
  url: 'https://api.github.com/users/jeresig?callback=logResults',
  dataType: "jsonp",
  jsonp: false,
  jsonpCallback: "logResults",
  cache: true,
  async: false,
}).done(function(r) {
  $('#log').append(r.data.avatar_url+'</br>');
});

$('#log').append('Ajaxing done </br>');
</script>

P.S.S哦，我再次检查了文档，现在我明白了，非常伤心（（

跨域请求和dataType：“jsonp”请求不支持同步操作。

P.S.S.S我最后一次尝试回调，它的工作，FUK-FUK-FUK，不知道为什么它不是真正的项目，但我会尝试去实现它：

function timenow(){var a=new Date,b=a.getMinutes();b<10&&(b="0"+b);var c=a.getHours();c>12&&(c-=12);var d=c+":"+b;return d}

        function ajaxCall(p,callback) {
        if(p==1){ 
        url='https://api.vk.com/method/wall.get?owner_id=-93100300&offset=0&count=1&filter=owner&callback=logResults' 
        } else {
        url="https://api.github.com/users/jeresig?callback=logResults" 
        }
        $.ajax({
        url: url,
        dataType: "jsonp",
        jsonp: false, 
        jsonpCallback: "logResults",
        cache: true,
        success: function (r) {
        callback(r);
        },
        });
        }


        ajaxCall(0,function(r){console.log(r); console.log(r.data.avatar_url+' '+timenow());
        ajaxCall(1,function(r){console.log(r); console.log(r.response[1].id+' '+timenow());
        ajaxCall(0,function(r){console.log(r.data.bio+' '+timenow());
        ajaxCall(1,function(r){console.log(r.response[1].id+' '+timenow());
        ajaxCall(0,function(r){console.log(r.data.blog+' '+timenow());
        ajaxCall(1,function(r){console.log(r.response[1].from_id+' '+timenow());
        ajaxCall(0,function(r){console.log(r.data.company+' '+timenow());
        ajaxCall(1,function(r){console.log(r.response[1].to_id+' '+timenow());
        ajaxCall(0,function(r){console.log(r.data.created_at+' '+timenow());
        ajaxCall(1,function(r){console.log(r.response[1].date+' '+timenow());   
        ajaxCall(0,function(r){console.log(r.data.email+' '+timenow());
        ajaxCall(1,function(r){console.log(r.response[1].post_type+' '+timenow());
        ajaxCall(0,function(r){console.log(r.data.events_url+' '+timenow());
        ajaxCall(1,function(r){console.log(r.response[1].text+' '+timenow());
        ajaxCall(0,function(r){console.log(r.data.followers+' '+timenow());
        ajaxCall(1,function(r){console.log(r.response[1].is_pinned+' '+timenow());
        ajaxCall(0,function(r){console.log(r.data.followers_url+' '+timenow());
        ajaxCall(1,function(r){console.log(r.response[1].reposts.count+' '+timenow());
        ajaxCall(0,function(r){console.log(r.data.following+' '+timenow());
        ajaxCall(1,function(r){console.log(r.response[1].likes.count+' '+timenow());
        ajaxCall(0,function(r){console.log(r.data.following_url+' '+timenow());
        ajaxCall(1,function(r){console.log(r.response[1].comments.count+' '+timenow());
        ajaxCall(0,function(r){console.log(r.data.gists_url+' '+timenow());
            console.log('Ajaxing done '+timenow());
        });
        });
        });
        });
        });
        });
        });
        });
        });
        });
        });
        });
        });
        });
        });
        });
        });
        });
        }); 
        });             
        });
        });
        });

Answer 1

我看到的主要问题是在最后的.done（）中。这应该包含在一个函数中。那，我认为如果你宣布你的'url'变量会更好，这样就不会混淆它的本地化。

function timenow() {
  var a = new Date,
    b = a.getMinutes();
  b < 10 && (b = "0" + b);
  var c = a.getHours();
  c > 12 && (c -= 12);
  var d = c + ":" + b;
  return d
}

function ajaxCall(p, callback) {
  var url = 'https://api.github.com/users/jeresig?callback=logResults';
  if (p == 1) {
    url = 'https://api.vk.com/method/wall.get?owner_id=-93100300&offset=0&count=1&filter=owner&callback=logResults'
  }
  return $.ajax({
    url: url,
    dataType: "jsonp",
    jsonp: false,
    jsonpCallback: "logResults",
    cache: true,
  }).done(function(r) {
    callback(r);
  });
}

$.when(
  ajaxCall(0, function(r) {
    console.log(r);
    console.log(r.data.avatar_url + ' ' + timenow());
  }),
  ajaxCall(1, function(r) {
    console.log(r);
    console.log(r.response[1].id + ' ' + timenow());
  }),
  ajaxCall(0, function(r) {
    console.log(r.data.bio + ' ' + timenow());
  }),
  ajaxCall(1, function(r) {
    console.log(r.response[1].id + ' ' + timenow());
  }),
  ajaxCall(0, function(r) {
    console.log(r.data.blog + ' ' + timenow());
  }),
  ajaxCall(1, function(r) {
    console.log(r.response[1].from_id + ' ' + timenow());
  }),
  ajaxCall(0, function(r) {
    console.log(r.data.company + ' ' + timenow());
  }),
  ajaxCall(1, function(r) {
    console.log(r.response[1].to_id + ' ' + timenow());
  }),
  ajaxCall(0, function(r) {
    console.log(r.data.created_at + ' ' + timenow());
  }),
  ajaxCall(1, function(r) {
    console.log(r.response[1].date + ' ' + timenow());
  }),
  ajaxCall(0, function(r) {
    console.log(r.data.email + ' ' + timenow());
  }),
  ajaxCall(1, function(r) {
    console.log(r.response[1].post_type + ' ' + timenow());
  }),
  ajaxCall(0, function(r) {
    console.log(r.data.events_url + ' ' + timenow());
  }),
  ajaxCall(1, function(r) {
    console.log(r.response[1].text + ' ' + timenow());
  }),
  ajaxCall(0, function(r) {
    console.log(r.data.followers + ' ' + timenow());
  }),
  ajaxCall(1, function(r) {
    console.log(r.response[1].is_pinned + ' ' + timenow());
  }),
  ajaxCall(0, function(r) {
    console.log(r.data.followers_url + ' ' + timenow());
  }),
  ajaxCall(1, function(r) {
    console.log(r.response[1].reposts.count + ' ' + timenow());
  }),
  ajaxCall(0, function(r) {
    console.log(r.data.following + ' ' + timenow());
  }),
  ajaxCall(1, function(r) {
    console.log(r.response[1].likes.count + ' ' + timenow());
  }),
  ajaxCall(0, function(r) {
    console.log(r.data.following_url + ' ' + timenow());
  }),
  ajaxCall(1, function(r) {
    console.log(r.response[1].comments.count + ' ' + timenow());
  }),
  ajaxCall(0, function(r) {
    console.log(r.data.gists_url + ' ' + timenow());
  })
).done(function() { console.log('Ajaxing done ' + timenow()); });

如果你打算使用async：false参数，那么在.when / .done中包含所有这些参数是没有意义的，如果你知道你不能异步调用它们，那么我会建议你删除.when逻辑，然后使用async：false属性顺序调用该函数。

看到你的jsonpCallback也会有所帮助。如果您有任何可被视为共享的变量或资源，那么这也可能是一个问题。

多个Ajax与jsonpCallback相同的回调

1 个答案: