依赖

        <dependency>
            <groupId>org.bitbucket.johness</groupId>
            <artifactId>java-cef</artifactId>
            <!--<version>49.87.win32.2</version>-->
            <version>49.87.win64.2</version>
        </dependency>

这个版本最低支持xp系统，所以选择这个版本。最新版本可以在官网下载源码编译

窗口程序

package com.cares.fids.client.core;

import org.cef.browser.CefBrowser;

import javax.annotation.Resource;
import javax.swing.*;
import java.awt.*;

/**
 * @author wangcj
 */
public class WebClient extends JFrame {

    private final CefBrowser browser;
    @Resource
    private CefBrowser cefBrowser;

    public WebClient(CefBrowser browser) throws HeadlessException {
        this.browser = browser;
    }

    private static void initialSkin() {
        try {
            try {
                UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
            } catch (ClassNotFoundException e) {
                e.printStackTrace();
            } catch (InstantiationException e) {
                e.printStackTrace();
            } catch (IllegalAccessException e) {
                e.printStackTrace();
            }
        } catch (UnsupportedLookAndFeelException e) {
            e.printStackTrace();
        }
    }

    public void initWebClient() {

        GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
        GraphicsDevice gd = ge.getDefaultScreenDevice();
        // 全屏设置
        setLocationRelativeTo(null);
        setContentPane(new JPanel());
        setUndecorated(true);
        setResizable(false);
        gd.setFullScreenWindow(this);
        setLayout(new BorderLayout());
        getContentPane().add(cefBrowser.getUIComponent(), BorderLayout.CENTER);
        setVisible(true);
    }

    public void start() {
        initialSkin();
        EventQueue.invokeLater(() -> {
            initWebClient();
        });
    }
}

spring 配置

package com.cares.fids.client.core;

import com.cares.fids.client.handler.*;
import lombok.extern.slf4j.Slf4j;
import org.cef.CefApp;
import org.cef.CefClient;
import org.cef.CefSettings;
import org.cef.browser.CefBrowser;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.io.File;

/**
 * @author wangcj
 * @desc
 * @date 2020/12/23 14:49
 **/
@Slf4j
@Configuration
public class WebClientContext {
    public static final String cache = System.getProperties().getProperty("user.home") + File.separator + "AppData" + File.separator + "Local" + File.separator + "fids";
    public static final String log_file = cache + File.separator + "fids_log.log";

    @Bean
    public CefSettings cefSettings() {
        CefSettings settings = new CefSettings();
        settings.windowless_rendering_enabled = false;
        settings.command_line_args_disabled = true;
        settings.cache_path = cache;
        settings.log_file = log_file;
        settings.log_severity = CefSettings.LogSeverity.LOGSEVERITY_DISABLE;
        settings.locale = "zh-CN";
        settings.product_version = "1.0";
        settings.user_agent = "FIDS";
        return settings;
    }

    @Bean(destroyMethod = "dispose")
    public CefApp cefApp(CefSettings settings) {
        String[] args = new String[0];
        CefApp myApp = CefApp.getInstance(args, settings);
        CefApp.CefVersion version = myApp.getVersion();
        CefApp.addAppHandler(new AppHandlerAdapter(args));
        log.info("Using:\n" + version);
        return myApp;
    }

    @Bean
    public CefClient cefClient(CefApp cefApp) {
        CefClient client_ = cefApp.createClient();
        client_.addContextMenuHandler(new ContextMenuHandlerAdapter());
        client_.addDownloadHandler(new DownloadHandler());
        client_.addJSDialogHandler(new JSDialogHandlerAdapter());
        client_.addKeyboardHandler(new KeyboardHandler());
        client_.addRequestHandler(new RequestHandlerAdapter());
        client_.addLifeSpanHandler(new LifeSpanHandler(client_, false, false));
        client_.addDisplayHandler(new DisplayHandlerAdapter());
        client_.addLoadHandler(new LoadHandlerAdapter());

        return client_;
    }

    @Bean
    public CefBrowser cefBrowser(CefClient cefClient) {
        String defaultUrl = "https://www.baidu.com";
        CefBrowser browser_ = cefClient.createBrowser(defaultUrl, false, false, null);
        return browser_;
    }

    @Bean
    public WebClient webClient(CefBrowser cefBrowser) {
        WebClient webClient = new WebClient(cefBrowser);
        webClient.start();
        return webClient;
    }
}

高版本的jcef

高版本的jcef，maven库上没有现成的，需要自己编译

windows 平台使用的时候要一次加载三个库

System.load(“jawt.dll”);
System.load(“cef.dll”);
System.load(“jcef.dll”);

参考类 CefApp 的私有构造方法

    private CefApp(String[] args, CefSettings settings) throws UnsatisfiedLinkError {
        super(args);
        if (settings != null) settings_ = settings.clone();
        if (OS.isWindows()) {
            SystemBootstrap.loadLibrary("jawt");
            SystemBootstrap.loadLibrary("chrome_elf");
            SystemBootstrap.loadLibrary("libcef");

            // Other platforms load this library in CefApp.startup().
            SystemBootstrap.loadLibrary("jcef");
        } else if (OS.isLinux()) {
            SystemBootstrap.loadLibrary("cef");
        }
        if (appHandler_ == null) {
            appHandler_ = this;
        }

        // Execute on the AWT event dispatching thread.
        try {
            Runnable r = new Runnable() {
                @Override
                public void run() {
                    // Perform native pre-initialization.
                    if (!N_PreInitialize())
                        throw new IllegalStateException("Failed to pre-initialize native code");
                }
            };
            if (SwingUtilities.isEventDispatchThread())
                r.run();
            else
                SwingUtilities.invokeAndWait(r);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

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