FLY的狐狸

2018-05-11

系统管理员

javaFX实例1-webView实现简单浏览器

评论(0) 浏览量(4917)

webView：

是一个管理webEngine和显示它中间内容的节点。这个对象只能从fx的线程中创建。

webEngine：

是一个管理网页的不可见控件，它可以加载网页，创建文档模型，运行javascript，加载必要的样式，很重要的是它提供的网页的文档模型很不错，另外，它还可以实现java应用程序和javascript的双向通信。

1.访问页面

1.通过任意的url地址进行访问，基于java.net包来实现，engine.load(String url)即可

2.从in-memory String的方式（内存查找已有网址的字符串）通过loadContent(java.lang.String)或者loadContent(java.lang.String, java.lang.String)的方式实现。

loadContent(java.lang.String URLcontext)：直接加载给定的url内容，当你在内存中有一个要访问的url地址时非常快，或者你要加载一些url无法表示的数据时，用这个。
loadContent(java.lang.String URLcontext, java.lang.String contentType):和上面的相比，你可以指定要加载的类型，所以可以加载html以外的类型。

2.回调函数

这些回调函数被调用时，使用页面上的脚本运行请求对用户界面进行操作，例如，打开一个弹出窗口，或改变状态的文本。一个webengine对象不能处理这些请求内部，所以它将请求传递给相应的回调。如果没有回调是一个具体的操作定义，该请求被忽略。

The table below shows JavaScript user interface methods and properties with their corresponding WebEngine callbacks:

JavaScript method/property	WebEngine callback
`window.alert()`	`onAlert`
`window.confirm()`	`confirmHandler`
`window.open()`	`createPopupHandler`
`window.open()` and `window.close()`	`onVisibilityChanged`
`window.prompt()`	`promptHandler`
Setting `window.status`	`onStatusChanged`
Setting any of the following: `window.innerWidth`, `window.innerHeight`, `window.outerWidth`, `window.outerHeight`, `window.screenX`, `window.screenY`, `window.screenLeft`, `window.screenTop`	`onResized`

事例代码：

Stage stage;
webEngine.setOnResized(
        new EventHandler<WebEvent<Rectangle2D>>() {
            public void handle(WebEvent<Rectangle2D> ev) {
                Rectangle2D r = ev.getData();
                stage.setWidth(r.getWidth());
                stage.setHeight(r.getHeight());
            }
        });

也就是说，webEngine可以获得javascript的内容，以及用户的响应，实现了java程序和javascript的交互。

3.文档对象入口

也就是支持dom解析

EventListener listener = new EventListener() {
    public void handleEvent(Event ev) {
        Platform.exit();
    }
};

Document doc = webEngine.getDocument();
Element el = doc.getElementById("exit-app");
((EventTarget) el).addEventListener("click", listener, false);

4.执行javascript

webEngine.executeScript("history.back()");

5.就是java和javascript的交互，可以参考api

<p style="box-sizing: border-box; outline: 0px; padding: 0px; margin-top: 0px; margin-bottom: 16px; color: rgb(79, 79, 79); line-height: 26px; text-align: justify; word-break: break-all; font-family: &quot;PingFang SC&quot;, &quot;Microsoft YaHei&quot;, SimHei, Arial, SimSun; white-space: normal; ">
    webView：
</p>
<p style="box-sizing: border-box; outline: 0px; padding: 0px; margin-top: 0px; margin-bottom: 16px; color: rgb(79, 79, 79); line-height: 26px; text-align: justify; word-break: break-all; font-family: &quot;PingFang SC&quot;, &quot;Microsoft YaHei&quot;, SimHei, Arial, SimSun; white-space: normal; ">
    <span style="box-sizing: border-box; outline: 0px; word-break: break-all; white-space: pre;"></span>是一个管理webEngine和显示它中间内容的节点。这个对象只能从fx的线程中创建。
</p>
<p style="box-sizing: border-box; outline: 0px; padding: 0px; margin-top: 0px; margin-bottom: 16px; color: rgb(79, 79, 79); line-height: 26px; text-align: justify; word-break: break-all; font-family: &quot;PingFang SC&quot;, &quot;Microsoft YaHei&quot;, SimHei, Arial, SimSun; white-space: normal; ">
    webEngine：
</p>
<p style="box-sizing: border-box; outline: 0px; padding: 0px; margin-top: 0px; margin-bottom: 16px; color: rgb(79, 79, 79); line-height: 26px; text-align: justify; word-break: break-all; font-family: &quot;PingFang SC&quot;, &quot;Microsoft YaHei&quot;, SimHei, Arial, SimSun; white-space: normal; ">
    <span style="box-sizing: border-box; outline: 0px; word-break: break-all; white-space: pre;"></span>是一个管理网页的不可见控件，它可以加载网页，创建文档模型，运行javascript，加载必要的样式，很重要的是它提供的网页的文档模型很不错，另外，它还可以实现java应用程序和javascript的双向通信。
</p>
<p style="box-sizing: border-box; outline: 0px; padding: 0px; margin-top: 0px; margin-bottom: 16px; color: rgb(79, 79, 79); line-height: 26px; text-align: justify; word-break: break-all; font-family: &quot;PingFang SC&quot;, &quot;Microsoft YaHei&quot;, SimHei, Arial, SimSun; white-space: normal; ">
    <span style="box-sizing: border-box; outline: 0px; word-break: break-all; font-family: SimSun; font-size: 18px;"><span style="box-sizing: border-box; outline: 0px; font-weight: 700; word-break: break-all;">1.访问页面</span></span>
</p>
<p style="box-sizing: border-box; outline: 0px; padding: 0px; margin-top: 0px; margin-bottom: 16px; color: rgb(79, 79, 79); line-height: 26px; text-align: justify; word-break: break-all; font-family: &quot;PingFang SC&quot;, &quot;Microsoft YaHei&quot;, SimHei, Arial, SimSun; white-space: normal; ">
    <span style="box-sizing: border-box; outline: 0px; word-break: break-all; white-space: pre;"></span>1.通过任意的url地址进行访问，基于java.net包来实现，engine.load(String url)即可
</p>
<p style="box-sizing: border-box; outline: 0px; padding: 0px; margin-top: 0px; margin-bottom: 16px; color: rgb(79, 79, 79); line-height: 26px; text-align: justify; word-break: break-all; font-family: &quot;PingFang SC&quot;, &quot;Microsoft YaHei&quot;, SimHei, Arial, SimSun; white-space: normal; ">
    <span style="box-sizing: border-box; outline: 0px; word-break: break-all; white-space: pre;"></span>2.从in-memory String的方式（内存查找已有网址的字符串） 通过<code style="box-sizing: border-box; outline: 0px; font-family: Consolas, Inconsolata, Courier, monospace; font-size: 14px; line-height: 22px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; word-break: break-all;"><a target="_blank" style="box-sizing: border-box; outline: 0px; color: rgb(78, 161, 219); cursor: pointer; word-break: break-all;">loadContent(java.lang.String)</a>或者</code><code style="box-sizing: border-box; outline: 0px; font-family: Consolas, Inconsolata, Courier, monospace; font-size: 14px; line-height: 22px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; word-break: break-all;"><a target="_blank" style="box-sizing: border-box; outline: 0px; color: rgb(78, 161, 219); cursor: pointer; word-break: break-all;">loadContent(java.lang.String, java.lang.String)</a>的方式实现。</code>&nbsp; &nbsp;&nbsp;
</p>
<p style="box-sizing: border-box; outline: 0px; padding: 0px; margin-top: 0px; margin-bottom: 16px; color: rgb(79, 79, 79); line-height: 26px; text-align: justify; word-break: break-all; font-family: &quot;PingFang SC&quot;, &quot;Microsoft YaHei&quot;, SimHei, Arial, SimSun; white-space: normal; ">
    <br/>
</p>
<ul class="blockList list-paddingleft-2" style="list-style-type: none;">
    <li>
        <p>
            <a target="_blank" style="box-sizing: border-box; outline: 0px; color: rgb(78, 161, 219); cursor: pointer; word-break: break-all; font-family: monospace;">loadContent(java.lang.String URLcontext)</a>：直接加载给定的url内容，当你在内存中有一个要访问的url地址时非常快，或者你要加载一些url无法表示的数据时，用这个。
        </p>
    </li>
    <li>
        <p>
            <a target="_blank" style="box-sizing: border-box; outline: 0px; color: rgb(78, 161, 219); cursor: pointer; word-break: break-all; font-family: monospace;">loadContent(java.lang.String URLcontext, java.lang.String</a>&nbsp;<span style="box-sizing: border-box; outline: 0px; word-break: break-all; color: rgb(0, 0, 153);">contentType</span>):和上面的相比，你可以指定要加载的类型，所以可以加载html以外的类型。
        </p>
    </li>
</ul>
<p>
    <span style="box-sizing: border-box; outline: 0px; word-break: break-all; font-size: 18px;">2.回调函数</span>
</p>
<p>
    <span style="box-sizing: border-box; outline: 0px; word-break: break-all; white-space: pre;"><span style="box-sizing: border-box; outline: 0px; word-break: break-all; font-size: 12px;"><span style="box-sizing: border-box; outline: 0px; word-break: break-all; border: 1px solid transparent; font-family: arial; line-height: 22px;">这些回调函数被调用时，使用页面上的脚本运行请求对用户界面进行操作，例如，打开一个弹出窗口，或改变状态的文本。</span><span style="box-sizing: border-box; outline: 0px; word-break: break-all; border: 1px solid transparent; font-family: arial; line-height: 22px;">一个webengine对象不能处理这些请求内部，所以它将请求传递给相应的回调。</span><span style="box-sizing: border-box; outline: 0px; word-break: break-all; border: 1px solid transparent; font-family: arial; line-height: 22px;">如果没有</span><span style="box-sizing: border-box; outline: 0px; word-break: break-all; border: 1px solid transparent; font-family: arial; line-height: 22px;">回调</span><span style="box-sizing: border-box; outline: 0px; word-break: break-all; border: 1px solid transparent; font-family: arial; line-height: 22px;">是一个</span><span style="box-sizing: border-box; outline: 0px; word-break: break-all; border: 1px solid transparent; font-family: arial; line-height: 22px;">具体的操作</span><span style="box-sizing: border-box; outline: 0px; word-break: break-all; border: 1px solid transparent; font-family: arial; line-height: 22px;">定义</span><span style="box-sizing: border-box; outline: 0px; word-break: break-all; border: 1px solid transparent; font-family: arial; line-height: 22px;">，</span><span style="box-sizing: border-box; outline: 0px; word-break: break-all; border: 1px solid transparent; font-family: arial; line-height: 22px;">该请求</span><span style="box-sizing: border-box; outline: 0px; word-break: break-all; border: 1px solid transparent; font-family: arial; line-height: 22px;">被忽略</span><span style="box-sizing: border-box; outline: 0px; word-break: break-all; border: 1px solid transparent; font-family: arial; line-height: 22px;">。</span></span></span>&nbsp; &nbsp;&nbsp;
</p>
<p>
    &nbsp; &nbsp; &nbsp;
</p>
<ul class="blockList list-paddingleft-2" style="list-style-type: none;">
    <li>
        <p style="box-sizing: border-box; outline: 0px; padding: 0px; margin-top: 0px; margin-bottom: 16px; font-size: 16px; color: rgb(79, 79, 79); line-height: 26px; text-align: justify; word-break: break-all;">
            The table below shows JavaScript user interface methods and properties with their corresponding&nbsp;<code style="box-sizing: border-box; outline: 0px; font-family: Consolas, Inconsolata, Courier, monospace; font-size: 14px; line-height: 22px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; word-break: break-all;">WebEngine</code>&nbsp;callbacks:
        </p>
        <table width="820" style="width: 798px;">
            <tbody style="box-sizing: border-box; outline: 0px; border: 0px; word-break: break-all;">
                <tr style="box-sizing: border-box; outline: 0px; border-width: 1px 0px 0px; border-right-style: initial; border-bottom-style: initial; border-left-style: initial; border-right-color: initial; border-bottom-color: initial; border-left-color: initial; border-image: initial; border-top-style: solid; border-top-color: rgb(221, 221, 221); word-break: break-all;" class="firstRow">
                    <th style="box-sizing: border-box; outline: 0px; padding: 8px; margin: 0px; text-align: left; word-break: break-all; border-top-color: rgb(221, 221, 221); color: rgb(79, 79, 79); line-height: 22px; background-color: rgb(239, 243, 245);">
                        JavaScript method/property
                    </th>
                    <th style="box-sizing: border-box; outline: 0px; padding: 8px; margin: 0px; text-align: left; word-break: break-all; border-top-color: rgb(221, 221, 221); color: rgb(79, 79, 79); line-height: 22px; background-color: rgb(239, 243, 245);">
                        WebEngine callback
                    </th>
                </tr>
                <tr style="box-sizing: border-box; outline: 0px; border-width: 1px 0px 0px; border-right-style: initial; border-bottom-style: initial; border-left-style: initial; border-right-color: initial; border-bottom-color: initial; border-left-color: initial; border-image: initial; border-top-style: solid; border-top-color: rgb(221, 221, 221); background-color: rgb(247, 247, 247); word-break: break-all;">
                    <td style="box-sizing: border-box; outline: 0px; padding: 8px; margin: 0px; word-break: break-all; color: rgb(79, 79, 79); line-height: 22px;">
                        <code style="box-sizing: border-box; outline: 0px; font-family: Consolas, Inconsolata, Courier, monospace; line-height: 22px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; word-break: break-all;">window.alert()</code>
                    </td>
                    <td style="box-sizing: border-box; outline: 0px; padding: 8px; margin: 0px; word-break: break-all; color: rgb(79, 79, 79); line-height: 22px;">
                        <code style="box-sizing: border-box; outline: 0px; font-family: Consolas, Inconsolata, Courier, monospace; line-height: 22px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; word-break: break-all;">onAlert</code>
                    </td>
                </tr>
                <tr style="box-sizing: border-box; outline: 0px; border-width: 1px 0px 0px; border-right-style: initial; border-bottom-style: initial; border-left-style: initial; border-right-color: initial; border-bottom-color: initial; border-left-color: initial; border-image: initial; border-top-style: solid; border-top-color: rgb(221, 221, 221); word-break: break-all;">
                    <td style="box-sizing: border-box; outline: 0px; padding: 8px; margin: 0px; word-break: break-all; color: rgb(79, 79, 79); line-height: 22px;">
                        <code style="box-sizing: border-box; outline: 0px; font-family: Consolas, Inconsolata, Courier, monospace; line-height: 22px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; word-break: break-all;">window.confirm()</code>
                    </td>
                    <td style="box-sizing: border-box; outline: 0px; padding: 8px; margin: 0px; word-break: break-all; color: rgb(79, 79, 79); line-height: 22px;">
                        <code style="box-sizing: border-box; outline: 0px; font-family: Consolas, Inconsolata, Courier, monospace; line-height: 22px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; word-break: break-all;">confirmHandler</code>
                    </td>
                </tr>
                <tr style="box-sizing: border-box; outline: 0px; border-width: 1px 0px 0px; border-right-style: initial; border-bottom-style: initial; border-left-style: initial; border-right-color: initial; border-bottom-color: initial; border-left-color: initial; border-image: initial; border-top-style: solid; border-top-color: rgb(221, 221, 221); background-color: rgb(247, 247, 247); word-break: break-all;">
                    <td style="box-sizing: border-box; outline: 0px; padding: 8px; margin: 0px; word-break: break-all; color: rgb(79, 79, 79); line-height: 22px;">
                        <code style="box-sizing: border-box; outline: 0px; font-family: Consolas, Inconsolata, Courier, monospace; line-height: 22px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; word-break: break-all;">window.open()</code>
                    </td>
                    <td style="box-sizing: border-box; outline: 0px; padding: 8px; margin: 0px; word-break: break-all; color: rgb(79, 79, 79); line-height: 22px;">
                        <code style="box-sizing: border-box; outline: 0px; font-family: Consolas, Inconsolata, Courier, monospace; line-height: 22px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; word-break: break-all;">createPopupHandler</code>
                    </td>
                </tr>
                <tr style="box-sizing: border-box; outline: 0px; border-width: 1px 0px 0px; border-right-style: initial; border-bottom-style: initial; border-left-style: initial; border-right-color: initial; border-bottom-color: initial; border-left-color: initial; border-image: initial; border-top-style: solid; border-top-color: rgb(221, 221, 221); word-break: break-all;">
                    <td style="box-sizing: border-box; outline: 0px; padding: 8px; margin: 0px; word-break: break-all; color: rgb(79, 79, 79); line-height: 22px;">
                        <code style="box-sizing: border-box; outline: 0px; font-family: Consolas, Inconsolata, Courier, monospace; line-height: 22px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; word-break: break-all;">window.open()</code>&nbsp;and<br style="box-sizing: border-box; outline: 0px; word-break: break-all;"/><code style="box-sizing: border-box; outline: 0px; font-family: Consolas, Inconsolata, Courier, monospace; line-height: 22px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; word-break: break-all;">window.close()</code>
                    </td>
                    <td style="box-sizing: border-box; outline: 0px; padding: 8px; margin: 0px; word-break: break-all; color: rgb(79, 79, 79); line-height: 22px;">
                        <code style="box-sizing: border-box; outline: 0px; font-family: Consolas, Inconsolata, Courier, monospace; line-height: 22px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; word-break: break-all;">onVisibilityChanged</code>
                    </td>
                </tr>
                <tr style="box-sizing: border-box; outline: 0px; border-width: 1px 0px 0px; border-right-style: initial; border-bottom-style: initial; border-left-style: initial; border-right-color: initial; border-bottom-color: initial; border-left-color: initial; border-image: initial; border-top-style: solid; border-top-color: rgb(221, 221, 221); background-color: rgb(247, 247, 247); word-break: break-all;">
                    <td style="box-sizing: border-box; outline: 0px; padding: 8px; margin: 0px; word-break: break-all; color: rgb(79, 79, 79); line-height: 22px;">
                        <code style="box-sizing: border-box; outline: 0px; font-family: Consolas, Inconsolata, Courier, monospace; line-height: 22px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; word-break: break-all;">window.prompt()</code>
                    </td>
                    <td style="box-sizing: border-box; outline: 0px; padding: 8px; margin: 0px; word-break: break-all; color: rgb(79, 79, 79); line-height: 22px;">
                        <code style="box-sizing: border-box; outline: 0px; font-family: Consolas, Inconsolata, Courier, monospace; line-height: 22px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; word-break: break-all;">promptHandler</code>
                    </td>
                </tr>
                <tr style="box-sizing: border-box; outline: 0px; border-width: 1px 0px 0px; border-right-style: initial; border-bottom-style: initial; border-left-style: initial; border-right-color: initial; border-bottom-color: initial; border-left-color: initial; border-image: initial; border-top-style: solid; border-top-color: rgb(221, 221, 221); word-break: break-all;">
                    <td style="box-sizing: border-box; outline: 0px; padding: 8px; margin: 0px; word-break: break-all; color: rgb(79, 79, 79); line-height: 22px;">
                        Setting&nbsp;<code style="box-sizing: border-box; outline: 0px; font-family: Consolas, Inconsolata, Courier, monospace; line-height: 22px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; word-break: break-all;">window.status</code>
                    </td>
                    <td style="box-sizing: border-box; outline: 0px; padding: 8px; margin: 0px; word-break: break-all; color: rgb(79, 79, 79); line-height: 22px;">
                        <code style="box-sizing: border-box; outline: 0px; font-family: Consolas, Inconsolata, Courier, monospace; line-height: 22px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; word-break: break-all;">onStatusChanged</code>
                    </td>
                </tr>
                <tr style="box-sizing: border-box; outline: 0px; border-width: 1px 0px 0px; border-right-style: initial; border-bottom-style: initial; border-left-style: initial; border-right-color: initial; border-bottom-color: initial; border-left-color: initial; border-image: initial; border-top-style: solid; border-top-color: rgb(221, 221, 221); background-color: rgb(247, 247, 247); word-break: break-all;">
                    <td style="box-sizing: border-box; outline: 0px; padding: 8px; margin: 0px; word-break: break-all; color: rgb(79, 79, 79); line-height: 22px;">
                        Setting any of the following:<br style="box-sizing: border-box; outline: 0px; word-break: break-all;"/><code style="box-sizing: border-box; outline: 0px; font-family: Consolas, Inconsolata, Courier, monospace; line-height: 22px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; word-break: break-all;">window.innerWidth</code>,&nbsp;<code style="box-sizing: border-box; outline: 0px; font-family: Consolas, Inconsolata, Courier, monospace; line-height: 22px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; word-break: break-all;">window.innerHeight</code>,<br style="box-sizing: border-box; outline: 0px; word-break: break-all;"/><code style="box-sizing: border-box; outline: 0px; font-family: Consolas, Inconsolata, Courier, monospace; line-height: 22px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; word-break: break-all;">window.outerWidth</code>,&nbsp;<code style="box-sizing: border-box; outline: 0px; font-family: Consolas, Inconsolata, Courier, monospace; line-height: 22px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; word-break: break-all;">window.outerHeight</code>,<br style="box-sizing: border-box; outline: 0px; word-break: break-all;"/><code style="box-sizing: border-box; outline: 0px; font-family: Consolas, Inconsolata, Courier, monospace; line-height: 22px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; word-break: break-all;">window.screenX</code>,&nbsp;<code style="box-sizing: border-box; outline: 0px; font-family: Consolas, Inconsolata, Courier, monospace; line-height: 22px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; word-break: break-all;">window.screenY</code>,<br style="box-sizing: border-box; outline: 0px; word-break: break-all;"/><code style="box-sizing: border-box; outline: 0px; font-family: Consolas, Inconsolata, Courier, monospace; line-height: 22px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; word-break: break-all;">window.screenLeft</code>,&nbsp;<code style="box-sizing: border-box; outline: 0px; font-family: Consolas, Inconsolata, Courier, monospace; line-height: 22px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; word-break: break-all;">window.screenTop</code>
                    </td>
                    <td style="box-sizing: border-box; outline: 0px; padding: 8px; margin: 0px; word-break: break-all; color: rgb(79, 79, 79); line-height: 22px;">
                        <code style="box-sizing: border-box; outline: 0px; font-family: Consolas, Inconsolata, Courier, monospace; line-height: 22px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; word-break: break-all;">onResized</code>
                    </td>
                </tr>
            </tbody>
        </table>
    </li>
</ul>
<p>
    &nbsp; &nbsp; &nbsp; &nbsp;事例代码：
</p>
<ul class="blockList list-paddingleft-2" style="list-style-type: none;">
    <li>
        <pre style="box-sizing: border-box; outline: 0px; padding: 0px; margin-top: 0px; margin-bottom: 24px; background-color: rgb(240, 240, 240); overflow-x: auto; font-family: Consolas, Inconsolata, Courier, monospace; line-height: 22px; color: rgb(0, 0, 0); word-break: break-all;">Stage stage;
webEngine.setOnResized(
        new EventHandler&lt;WebEvent&lt;Rectangle2D&gt;&gt;() {
            public void handle(WebEvent&lt;Rectangle2D&gt; ev) {
                Rectangle2D r = ev.getData();
                stage.setWidth(r.getWidth());
                stage.setHeight(r.getHeight());
            }
        });</pre>
    </li>
</ul>
<p>
    <span style="box-sizing: border-box; outline: 0px; word-break: break-all; white-space: pre;"></span>也就是说，webEngine可以获得javascript的内容，以及用户的响应，实现了java程序和javascript的交互。
</p>
<p>
    <span style="box-sizing: border-box; outline: 0px; word-break: break-all; font-size: 18px;">3.文档对象入口</span>
</p>
<p>
    <span style="box-sizing: border-box; outline: 0px; word-break: break-all; white-space: pre;"></span>也就是支持dom解析
</p>
<p>
    <span style="box-sizing: border-box; outline: 0px; word-break: break-all; white-space: pre;"></span>
</p>
<ul class="blockList list-paddingleft-2" style="list-style-type: none;">
    <li>
        <pre style="box-sizing: border-box; outline: 0px; padding: 0px; margin-top: 0px; margin-bottom: 24px; background-color: rgb(240, 240, 240); overflow-x: auto; font-family: Consolas, Inconsolata, Courier, monospace; line-height: 22px; color: rgb(0, 0, 0); word-break: break-all;">EventListener listener = new EventListener() {
    public void handleEvent(Event ev) {
        Platform.exit();
    }
};

Document doc = webEngine.getDocument();
Element el = doc.getElementById(&quot;exit-app&quot;);
((EventTarget) el).addEventListener(&quot;click&quot;, listener, false);</pre>
    </li>
</ul>
<p>
    <span style="box-sizing: border-box; outline: 0px; word-break: break-all; font-size: 18px;">4.执行javascript</span>
</p>
<p>
    &nbsp; &nbsp;
</p>
<pre style="box-sizing: border-box; outline: 0px; padding: 0px; margin-top: 0px; margin-bottom: 24px; background-color: rgb(240, 240, 240); overflow-x: auto; font-family: Consolas, Inconsolata, Courier, monospace; line-height: 22px; color: rgb(0, 0, 0); word-break: break-all;">webEngine.executeScript(&quot;history.back()&quot;);</pre>
<p>
    5.就是java和javascript的交互，可以参考api
</p>
<p>
    <br/>
</p>

分享到：

没有登录不能评论