java-cef编译测试

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

下载地址
https://bitbucket.org/chromiumembedded/java-cef/downloads/

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

chromium各个平台编译好的版本下载地址
http://opensource.spotify.com/cefbuilds/index.html

文章发布时chromium版本:CEF 3.3163.1663.g416ffeb / Chromium 61.0.3163.79

本文参考自官方文档：https://bitbucket.org/chromiumembedded/java-cef/wiki/BranchesAndBuilding

编译代码
支持在Windows,Linux和Mac OS x下64位java下编译，32位可能可以被编译，但是未测试过。
需要安装的软件：

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平台:
当前版本的JCEF使用Visual Studio 2015来编译和运行,使用其它版本的开发工具可能会存在编译或运行错误。

使用Git下载

# 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

编译指南
1. 编译chromium(CEF)生成本地代码(Windows下DLL，Linux下so)：运行CMake生成特定平台的本地代码. 如果需要生成Release版本的jcef和jcef_helper，请设置CMaker的额外输出参数。

Windows: 生成64位 VS2015项目工程.

# 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

有可能会因为网络原因出现上边的下载错误，把gs://chromium-clang-format/6ddedd571c56b8c184f30a3c1fc36984e8c10ccd改为https://storage.googleapis.com/chromium-clang-format/6ddedd571c56b8c184f30a3c1fc36984e8c10ccd，然后浏览器下载，下载完成后再把文件名改为clang-format.exe放到tools目录即可。

使用vs2015打开 jcef.sln



生成->配置管理器 ->活动解决方案配置，修改为"Release"



生成->生成解决方案



2. 编译JCEF的java代码(java调用chromium代码).

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

3. 运行run.[bat|sh]命令测chromium，测试代码中带有两个例子simple(java/simple/MainFrame.java)或detailed(java/detailed/MainFrame.java)，可以在命令行中添加simple或detailed参数来运行不同的例子代码

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

打包jar指南
把调用chromium的java代码生成jar包。

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

新建eclipse项目
把上一边生成的jar和dll相关文件放进项目中，也可以放进操作系统的库目录中。
我这里的代码目录如下：

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库路径
* @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库
MainFrame.addLibraryDir("D:\\project\\java\\javacef\\lib\\win64");
new MainFrame("https://my.oschina.net/penngo/blog", OS.isLinux(), false);
}
}