java-cef編譯測試 原

官方地址
https://bitbucket.org/chromiumembedded/java-cef

下載地址
https://bitbucket.org/chromiumembedded/java-cef/downloads/

https://github.com/chromiumembedded/java-cef

chromium各個平臺編譯好的版本下載地址
http://opensource.spotify.com/cefbuilds/index.html

文章發佈時chromium版本:CEF 3.3163.1663.g416ffeb / Chromium 61.0.3163.79

本文參考自官方文檔:https://bitbucket.org/chromiumembedded/java-cef/wiki/BranchesAndBuilding

編譯代碼
支持在Windows,Linux和Mac OS x下64位java下編譯,32位可能可以被編譯,但是未測試過。
需要安裝的軟件:

CMake >= 2.8.12.2版本
Git.
Java  1.7 或 1.8版本
Python >=2.6(2.x版本系列) (不支持3.x).

Windows平臺:
當前版本的JCEF使用Visual Studio 2015來編譯和運行,使用其它版本的開發工具可能會存在編譯或運行錯誤。

使用Git下載

# The JCEF source code will exist at `/path/to/java-cef/src`
cd /path/to/java-cef
git clone https://bitbucket.org/chromiumembedded/java-cef.git src

編譯指南
1. 編譯chromium(CEF)生成本地代碼(Windows下DLL,Linux下so):運行CMake生成特定平臺的本地代碼. 如果需要生成Release版本的jcef和jcef_helper,請設置CMaker的額外輸出參數。 

Windows: 生成64位 VS2015項目工程.

# Enter the JCEF source code directory.
cd /path/to/java-cef/src

# Create and enter the `jcef_build` directory.
# The `jcef_build` directory name is required by other JCEF tooling
# and should not be changed.
mkdir jcef_build && cd jcef_build

# Windows: Generate 64-bit VS2015 project files.
cmake -G "Visual Studio 14 Win64" ..
# Open jcef.sln in Visual Studio
# - Select Build > Configuration Manager and change the "Active solution configuration" to "Release"
# - Select Build > Build Solution.
0> Failed to fetch file gs://chromium-clang-format/6ddedd571c56b8c184f30a3c1fc36984e8c10ccd for tools/buildtools/win/clang-format.exe, skipping. [Err: Traceback (most recent call last):
  File "D:\project\java\java-cef\src\tools\buildtools\gsutil.py", line 9, in <module>
    import argparse
ImportError: No module named argparse

有可能會因爲網絡原因出現上邊的下載錯誤,把gs://chromium-clang-format/6ddedd571c56b8c184f30a3c1fc36984e8c10ccd改爲https://storage.googleapis.com/chromium-clang-format/6ddedd571c56b8c184f30a3c1fc36984e8c10ccd,然後瀏覽器下載,下載完成後再把文件名改爲clang-format.exe放到tools目錄即可。

使用vs2015打開 jcef.sln


生成->配置管理器 ->活動解決方案配置,修改爲"Release"


生成->生成解決方案

2. 編譯JCEF的java代碼(java調用chromium代碼).

cd /path/to/java-cef/src/tools
compile.bat win64

3. 運行run.[bat|sh]命令測chromium,測試代碼中帶有兩個例子simple(java/simple/MainFrame.java)或detailed(java/detailed/MainFrame.java),可以在命令行中添加simple或detailed參數來運行不同的例子代碼

cd /path/to/java-cef/src/tools
run.bat win64 Release detailed

打包jar指南
把調用chromium的java代碼生成jar包。

cd /path/to/java-cef/src/tools
make_distrib.bat win64

新建eclipse項目
把上一邊生成的jar和dll相關文件放進項目中,也可以放進操作系統的庫目錄中。
我這裏的代碼目錄如下:

package tests.simple;

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.lang.reflect.Field;

import javax.swing.JFrame;
import javax.swing.JTextField;

import org.cef.CefApp;
import org.cef.CefApp.CefAppState;
import org.cef.CefClient;
import org.cef.CefSettings;
import org.cef.OS;
import org.cef.browser.CefBrowser;
import org.cef.handler.CefAppHandlerAdapter;

public class MainFrame extends JFrame {
    private static final long serialVersionUID = -5570653778104813836L;
    private final JTextField address_;
    private final CefApp cefApp_;
    private final CefClient client_;
    private final CefBrowser browser_;
    private final Component browerUI_;

    private MainFrame(String startURL, boolean useOSR, boolean isTransparent) {
        CefApp.addAppHandler(new CefAppHandlerAdapter(null) {
            @Override
            public void stateHasChanged(org.cef.CefApp.CefAppState state) {
                // Shutdown the app if the native CEF part is terminated
                if (state == CefAppState.TERMINATED) System.exit(0);
            }
        });
        CefSettings settings = new CefSettings();
        settings.windowless_rendering_enabled = useOSR;
        cefApp_ = CefApp.getInstance(settings);
        client_ = cefApp_.createClient();
        browser_ = client_.createBrowser(startURL, useOSR, isTransparent);
        browerUI_ = browser_.getUIComponent();

        address_ = new JTextField(startURL, 100);
        address_.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                browser_.loadURL(address_.getText());
            }
        });

        getContentPane().add(address_, BorderLayout.NORTH);
        getContentPane().add(browerUI_, BorderLayout.CENTER);
        pack();
        setSize(800, 600);
        setVisible(true);

        addWindowListener(new WindowAdapter() {
            @Override
            public void windowClosing(WindowEvent e) {
                CefApp.getInstance().dispose();
                dispose();
            }
        });
    }
    
    /**
     * 添加DLL庫路徑
     * @param libraryPath
     */
    private static void addLibraryDir(String libraryPath){
    	try{
    		Field userPathsField = ClassLoader.class.getDeclaredField("usr_paths");  
            userPathsField.setAccessible(true);  
            String[] paths = (String[]) userPathsField.get(null);  
            StringBuilder sb = new StringBuilder();  
            for (int i = 0; i < paths.length; i++) {  
                if (libraryPath.equals(paths[i])) {  
                    continue;  
                }  
                sb.append(paths[i]).append(';');  
            }  
            sb.append(libraryPath);  
            System.setProperty("java.library.path", sb.toString());  
            final Field sysPathsField = ClassLoader.class.getDeclaredField("sys_paths");  
            sysPathsField.setAccessible(true);  
            sysPathsField.set(null, null);  
    	}
    	catch(Exception e){
    		e.printStackTrace();
    	}
    }

    public static void main(String[] args) {
    	//添加DLL庫
    	MainFrame.addLibraryDir("D:\\project\\java\\javacef\\lib\\win64");
        new MainFrame("https://my.oschina.net/penngo/blog", OS.isLinux(), false);
    }
}

發表評論
所有評論
還沒有人評論,想成為第一個評論的人麼? 請在上方評論欄輸入並且點擊發布.
相關文章