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2025-04-16 c5fb1fbcbb2bf4d511773d348f9ef625855c61fc
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<div class="apiDetail">
<div>
    <h2><span>String / Function(treeId, treeNode)</span><span class="path">setting.async.</span>url</h2>
    <h3>概述<span class="h3_info">[ 依赖 <span class="highlight_green">jquery.ztree.core</span> 核心 js ]</span></h3>
    <div class="desc">
        <p></p>
        <div class="longdesc">
            <p>Ajax 获取数据的 URL 地址。<span class="highlight_red">[setting.async.enable = true 时生效]</span></p>
            <p>默认值:""</p>
        </div>
    </div>
    <h3>String 格式说明</h3>
    <div class="desc">
    <p>设置固定的异步加载 url 字符串,请注意地址的路径,确保页面能正常加载</p>
    <p class="highlight_red">url 内也可以带参数,这些参数就只能是通过 get 方式提交了,并且请注意进行转码</p>
    </div>
    <h3>Function 参数说明</h3>
    <div class="desc">
    <h4><b>treeId</b><span>String</span></h4>
    <p>对应 zTree 的 <b class="highlight_red">treeId</b>,便于用户操控</p>
    <h4 class="topLine"><b>treeNode</b><span>JSON</span></h4>
    <p>需要异步加载子节点的的父节点 JSON 数据对象</p>
    <p class="highlight_red">针对根进行异步加载时,treeNode = null</p>
    <h4 class="topLine"><b>返回值</b><span>String</span></h4>
    <p>返回值同 String 格式的数据</p>
    </div>
    <h3>setting & function 举例</h3>
    <h4>1. 设置异步获取节点的 URL 为 nodes.php</h4>
    <pre xmlns=""><code>var setting = {
    async: {
        enable: true,
        url: "nodes.php",
        autoParam: ["id", "name"]
    }
};
......</code></pre>
    <h4>2. 设置异步获取节点的 URL 为 function 动态获取</h4>
    <pre xmlns=""><code>function getAsyncUrl(treeId, treeNode) {
    return treeNode.isParent ? "nodes1.php" : "nodes2.php";
};
var setting = {
    async: {
        enable: true,
        url: getAsyncUrl,
        autoParam: ["id", "name"]
    }
};
......</code></pre>
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