如何使JRE与launch4j捆绑在一起？

Question

我了解launch4j不会将JRE捆绑在中，.exe但是您必须将其放置在它旁边。我的问题是，我应该怎么做？Maven是否有一种方法可以自动找到并复制我用来构建应用程序的JDK的JRE并将其复制到给定目录？

我试图做这样的事情：

    <plugin>
        <artifactId>maven-resources-plugin</artifactId>
        <version>2.6</version>
        <executions>
            <execution>
                <id>copy-resources</id>
                <!-- here the phase you need -->
                <phase>package</phase>
                <goals>
                    <goal>copy-resources</goal>
                </goals>
                <configuration>
                    <outputDirectory>${basedir}/target/windows/jre</outputDirectory>
                    <resources>
                        <resource>
                            <directory>${java.home}</directory>
                        </resource>
                    </resources>
                </configuration>
            </execution>
        </executions>
    </plugin>

但是程序无法启动。它显示了一个小对话框，该对话框立即消失了（它似乎是空白的，但是消失得太快了，我无法真正注意到它）。

Answer 1

更新：删除了我以前的答案，并用经过测试的工作示例代替

更新2：现在，此pom.xml下载JRE tgz并将其解压缩，并且launch4jexe使用它并且可以工作。我添加了评论来解释它是如何工作的。

我建议只使用32位exe和JRE。使用64位JRE的唯一原因是程序需要使用超过4 GB的RAM。

当然，现在您需要一个安装程序来接收所有这些内容并安装到ProgramFiles。过去，我已使用NSIS。NSIS有一个学习曲线，但还不错。

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.akathist.encc</groupId>
    <artifactId>mavenproject1</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>jar</packaging>
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
    </properties>
    <dependencies>
        <!-- This is the win32 JRE tgz hosted by alfresco - https://mvnrepository.com/artifact/com.oracle.java/jre -->
        <dependency>
            <groupId>com.oracle.java</groupId>
            <artifactId>jre</artifactId>
            <classifier>win32</classifier>
            <type>tgz</type>
            <version>1.8.0_131</version>
        </dependency>
    </dependencies>
    <repositories>
        <repository>
            <!-- this repository has the JRE tgz -->
            <id>alfresco</id>
            <url>https://artifacts.alfresco.com/nexus/content/repositories/public/</url>
        </repository>
    </repositories>
    <build>
        <plugins>
            <plugin>
                <!-- this is to extract the JRE tgz file we downloaded -->
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-dependency-plugin</artifactId>
                <version>2.5.1</version>
                <executions>
                    <execution>
                        <phase>generate-resources</phase>
                        <goals>
                            <goal>unpack-dependencies</goal>
                        </goals>
                        <configuration>
                            <includeGroupIds>com.oracle.java</includeGroupIds>
                            <includeTypes>tgz</includeTypes>
                            <includeArtifactIds>jre</includeArtifactIds>
                            <includeClassifiers>win32</includeClassifiers>
                            <outputDirectory>target/win32</outputDirectory>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <!-- This calls launch4j to create the program EXE -->
                <groupId>com.akathist.maven.plugins.launch4j</groupId>
                <artifactId>launch4j-maven-plugin</artifactId>
                <executions>
                    <execution>
                        <id>l4j-clui</id>
                        <phase>package</phase>
                        <goals>
                            <goal>launch4j</goal>
                        </goals>
                        <configuration>
                            <headerType>console</headerType>
                            <outfile>target/encc.exe</outfile>
                            <jar>target/mavenproject1-1.0-SNAPSHOT.jar</jar>
                            <errTitle>encc</errTitle>
                            <classPath>
                                <mainClass>com.akathist.encc.Clui</mainClass>
                                <addDependencies>false</addDependencies>
                                <preCp>anything</preCp>
                            </classPath>
                            <jre>
                                <path>./win32/java</path>
                            </jre>
                            <versionInfo>
                                <fileVersion>1.2.3.4</fileVersion>
                                <txtFileVersion>txt file version?</txtFileVersion>
                                <fileDescription>a description</fileDescription>
                                <copyright>my copyright</copyright>
                                <productVersion>4.3.2.1</productVersion>
                                <txtProductVersion>txt product version</txtProductVersion>
                                <productName>E-N-C-C</productName>
                                <internalName>ccne</internalName>
                                <originalFilename>original.exe</originalFilename>
                            </versionInfo>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>

更新3：可悲的事实是，您所需要的JRE不存在任何官方的甚至最新的Maven存储库。您可以托管自己的具有所需JRE的Maven存储库。随着新版本的完成，您将必须更新此内容。在发布新版本之前进行测试也是一个好主意。每个月的第三个星期二是新Java版本发布的时间。您可以为此设置提醒，以检查是否发布了新版本并下载。由于需要进行许可协议检查，因此将其自动化是很痛苦的。这篇文章可能会有所帮助，但您可能无法通过这种方式下载JRE的tar.gz版本：Java以编程方式检查最新版本

如果要支持多个平台，则托管自己的Maven存储库是一个不错的方法。您可以托管自己的存储库，并在每次发布完成后使用新的JREtar.gz更新它：http://codingdict.com/questions/144877

最简单的选择是做您已经打算的目标，然后只使用构建您的JRE。只要您使用32位JRE进行构建，就可以支持Windows
32和64。您有时间测试新版本时，可以偶尔进行更新。这是一个可以执行此操作的pom.xml：

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.akathist.encc</groupId>
    <artifactId>mavenproject1</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>jar</packaging>
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
    </properties>
    <build>
        <plugins>
            <plugin>
                <!-- This copies the JRE used to do the build from java.home - should be 32 bit Windows JRE -->
                <artifactId>maven-resources-plugin</artifactId>
                <version>2.6</version>
                <executions>
                    <execution>
                        <id>copy-resources</id>
                        <!-- here the phase you need -->
                        <phase>package</phase>
                        <goals>
                            <goal>copy-resources</goal>
                        </goals>
                        <configuration>
                            <outputDirectory>${basedir}/target/win32/java</outputDirectory>
                            <resources>
                                <resource>
                                    <directory>${java.home}</directory>
                                </resource>
                            </resources>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <!-- This calls launch4j to create the program EXE -->
                <groupId>com.akathist.maven.plugins.launch4j</groupId>
                <artifactId>launch4j-maven-plugin</artifactId>
                <executions>
                    <execution>
                        <id>l4j-clui</id>
                        <phase>package</phase>
                        <goals>
                            <goal>launch4j</goal>
                        </goals>
                        <configuration>
                            <headerType>console</headerType>
                            <outfile>target/encc.exe</outfile>
                            <jar>target/mavenproject1-1.0-SNAPSHOT.jar</jar>
                            <errTitle>encc</errTitle>
                            <classPath>
                                <mainClass>com.akathist.encc.Clui</mainClass>
                                <addDependencies>false</addDependencies>
                                <preCp>anything</preCp>
                            </classPath>
                            <jre>
                                <path>./win32/java</path>
                            </jre>
                            <versionInfo>
                                <fileVersion>1.2.3.4</fileVersion>
                                <txtFileVersion>txt file version?</txtFileVersion>
                                <fileDescription>a description</fileDescription>
                                <copyright>my copyright</copyright>
                                <productVersion>4.3.2.1</productVersion>
                                <txtProductVersion>txt product version</txtProductVersion>
                                <productName>E-N-C-C</productName>
                                <internalName>ccne</internalName>
                                <originalFilename>original.exe</originalFilename>
                            </versionInfo>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>