从 7.7.1 到 7.8

在 JxBrowser 7.8 中，Chromium Engine 已升级至版本 79。这个 Chromium 版本的源代码中存在几个重大变更，影响了 JxBrowser 的公共 API。在本迁移指南中，我们将详细说明在 7.8 版本中哪些 API 已被移除，以及您应该使用的相应替代方法。

下载

接受下载

v7.7.1

为了接受文件下载请求，使用了以下回调：

      Downloads downloads = engine.downloads();
downloads.set(StartDownloadCallback.class, (params, tell) -> tell.cancel());

      val downloads = engine.downloads()
downloads.set(StartDownloadCallback::class.java,
    StartDownloadCallback { params, tell -> tell.cancel() }
)

    

v7.8

在 7.8 中，此功能已移至 Browser，因此现在您可以独立地为每个 Browser 实例接受文件下载请求。例如：

      browser.set(StartDownloadCallback.class, (params, tell) -> tell.cancel());

    

      browser.set(StartDownloadCallback::class.java,
    StartDownloadCallback { params, tell -> tell.cancel() }
)

    

网络

访问 Browser

v7.7.1

      network.set(BeforeSendHeadersCallback.class, params -> {
    params.browser().ifPresent(browser -> {});
    ...
});

network.set(BeforeUrlRequestCallback.class, params -> {
    params.browser().ifPresent(browser -> {});
    ...
});

network.set(ReceiveHeadersCallback.class, params -> {
    params.browser().ifPresent(browser -> {});
    ...
});

    

      network.set(BeforeSendHeadersCallback::class.java,
    BeforeSendHeadersCallback { params -> 
        params.browser().ifPresent{ browser -> {}}
    }
)
network.set(BeforeUrlRequestCallback::class.java,
    BeforeUrlRequestCallback { params -> 
        params.browser().ifPresent{ browser -> {}}
    }
)
network.set(ReceiveHeadersCallback::class.java,
    ReceiveHeadersCallback { params -> 
        params.browser().ifPresent{ browser -> {}}
    }
)

    

v7.8

      network.set(BeforeSendHeadersCallback.class, params -> {
    params.urlRequest().browser().ifPresent(browser -> {});
    ...
});

network.set(BeforeUrlRequestCallback.class, params -> {
    params.urlRequest().browser().ifPresent(browser -> {});
    ...
});

network.set(ReceiveHeadersCallback.class, params -> {
    params.urlRequest().browser().ifPresent(browser -> {});
    ...
});

    

      network.set(BeforeSendHeadersCallback::class.java,
    BeforeSendHeadersCallback { params -> 
        params.urlRequest().browser().ifPresent{browser -> {}}
        ...
    }
)
network.set(BeforeUrlRequestCallback::class.java,
    BeforeUrlRequestCallback { params -> 
        params.urlRequest().browser().ifPresent{browser -> {}}
        ...
    }
)
network.set(ReceiveHeadersCallback::class.java,
    ReceiveHeadersCallback { params -> 
        params.urlRequest().browser().ifPresent{browser -> {}}
        ...
    }
)

    

BytesSent

v7.7.1

      network.on(BytesSent.class, event -> {
    int bytesSentCount = event.count();
});

    

      network.on(BytesSent.class) { event ->
    val bytesSentCount = event.count()
});

    

v7.8

      network.on(RequestCompleted.class, event -> {
    long bytesSent = event.urlRequest().totalBytesSent();
});

    

      network.on(RequestCompleted.class) { event ->
    val bytesSent = event.urlRequest().totalBytesSent()
});

    

BytesReceived

v7.7.1

      network.on(BytesReceived.class, event -> {
    int bytesReceivedCount = event.count();
});

    

      network.on(BytesReceived.class) { event ->
    val bytesReceivedCount = event.count()
});

    

v7.8

      network.on(RequestCompleted.class, event -> {
    long bytesReceived = event.urlRequest().totalBytesReceived();
});

    

      network.on(RequestCompleted.class) { event ->
    val bytesReceived = event.urlRequest().totalBytesReceived()
});

    

内容

获取网页的位图

弃用的 com.teamdev.jxbrowser.view.javafx.BitmapUtil 和 com.teamdev.jxbrowser.view.swing.BitmapUtil 类已被移除。请改用 com.teamdev.jxbrowser.view.swing.graphics.BitmapImage 和 com.teamdev.jxbrowser.view.javafx.graphics.BitmapImage 类替代。

已移除的 API

由于 Chromium 79 中相应的功能已不存在，以下类和方法已被移除：

com.teamdev.jxbrowser.net.event.TransactionStarted
com.teamdev.jxbrowser.net.callback.CanAccessFileCallback.url()
com.teamdev.jxbrowser.browser.callback.CertificateErrorCallback.resourceType()

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