如何让 JQuery Autocomplete 与 Ajax 和 JSON 配合使用?

发布于 2024-11-16 03:08:26 字数 977 浏览 0 评论 0原文

我对 JQuery 的自动完成功能很陌生。我正在尝试让这段代码正常工作。每次有人在输入字段中键入内容时,下面的代码都会正确执行 ajax 轮询。但是它不会降低自动完成功能。

$(document).ready(function() {
  $("#search").autocomplete({
    source: 'cityajax'
  });
});

这是它从服务器成功提取的文件。 mime/内容类型设置为 text/json。

['Overland Park','Hiawatha','Columbus','Lenexa','Pittsburg','Dodge City','Mission']

当实际源设置为 javascript 本身中的内联 JSON var 时,同样的事情也可以正常工作。这个问题一定是一些愚蠢的简单问题,但我花了一个半小时试图找出问题所在,但我遇到了障碍。我是否缺少某种必需的参数?

编辑:将我的“json”更改为这个有效的 JSON,仍然是同样的问题。

{"1": "Overland Park","1": "Hiawatha","1": "Columbus","1": "Lenexa","1": "Pittsburg","1": "Dodge City"}

编辑:再次将我的“json”更改为此。

[{"1": "Overland Park"},{"2": "Hiawatha"},{"3": "Columbus"},{"4": "Lenexa"},{"5": "Pittsburg"},{"6": "Dodge City"}]

编辑:将我的“json”更改为此,一切都很好。

[{"label": "欧弗兰帕克"},{"label": "海华沙"},{"label": "哥伦布"},{"label": "Lenexa"},{"5": "匹兹堡" },{"label": "道奇城"}]

I am new to JQuery's autocomplete functionality. I am trying to get this code to work correctly. The code below correctly does an ajax poll every time someone types into the input field. However it does't drop down the autocomplete.

$(document).ready(function() {
  $("#search").autocomplete({
    source: 'cityajax'
  });
});

Here is the file it is successfully pulling from the server. The mime/content type is set to text/json.

['Overland Park','Hiawatha','Columbus','Lenexa','Pittsburg','Dodge City','Mission']

The same thing works fine when actual the source is set to an inline JSON var in the javascript itself. This problem has got to be something stupid simple, but I have spent the past hour and half trying to figure out what's wrong and I'm at a roadblock. Am I missing some kind of required parameter?

EDIT: Changed my "json" to this valid JSON, still same issue.

{"1": "Overland Park","1": "Hiawatha","1": "Columbus","1": "Lenexa","1": "Pittsburg","1": "Dodge City"}

EDIT: Changed my "json" again to this.

[{"1": "Overland Park"},{"2": "Hiawatha"},{"3": "Columbus"},{"4": "Lenexa"},{"5": "Pittsburg"},{"6": "Dodge City"}]

EDIT: Changed my "json" to this and everything was good.

[{"label": "Overland Park"},{"label": "Hiawatha"},{"label": "Columbus"},{"label": "Lenexa"},{"5": "Pittsburg"},{"label": "Dodge City"}]

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评论(2

恰似旧人归 2024-11-23 03:08:26

你用的方法肯定是行不通的。我想问你怎么知道数据肯定已经到达那里。您是否通过 Firebug 在 XHR 中看到它?如果您不使用插件的远程源功能,您如何调用它?

按照您定义的方式,没有文件扩展名。因此,它将源设置为名为 cityajax 的字符串,该字符串无效。如果您的数据源是一个名为 cityajax 的变量,那么您可以将该变量放在那里而不带引号。

Jsonlint 将允许您测试数据的有效性。

The method you used is definitely not going to work. I'd question how you know the data is definitely getting there. Are you seeing it in XHR via Firebug? How are you calling it if you're not using the plugin's remote source functionality?

The way you've got it defined, there's no file extension. So, it's setting the source to a string called cityajax, which isn't valid. If your datasource is a variable called cityajax, then you could put that variable there without the quotes.

Jsonlint will allow you to test the validity of your data.

牛↙奶布丁 2024-11-23 03:08:26

自动完成的简单示例:

$( "#test" ).autocomplete({
            source: "search.php"
                        })

在 search.php 中

<?php
    echo [{"label":"Overland Park"},{"label":"Hiawatha"}]
?>

如果您想要本地搜索,而不是 Ajax,则使用以下代码

var cityajax = ['Overland Park','Hiawatha','Columbus','Lenexa','Pittsburg','Dodge City','Mission']

$(document).ready(function() {
  $("#search").autocomplete({
    source: cityajax
  });
});

Simple example for the autocomplet:

$( "#test" ).autocomplete({
            source: "search.php"
                        })

In the search.php

<?php
    echo [{"label":"Overland Park"},{"label":"Hiawatha"}]
?>

If you want a local search, not Ajax than use the following code

var cityajax = ['Overland Park','Hiawatha','Columbus','Lenexa','Pittsburg','Dodge City','Mission']

$(document).ready(function() {
  $("#search").autocomplete({
    source: cityajax
  });
});
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