Thefoption indicates that the JAR file to update is specified on the command line. jar-fileis the existing JAR file that is to be updated. input-file(s)is a space-delimited list of one or more files that you want to add to the JAR file. Any files already in the archive having the...
示例代码 下面是一个简单的示例代码,演示如何通过类加载器实现jar包热更新。 publicclassHotUpdateDemo{publicstaticvoidmain(String[]args){try{// 创建一个URLClassLoader加载器URLClassLoaderclassLoader=newURLClassLoader(newURL[]{newURL("file:///path/to/new.jar")});// 使用加载器加载指定的类Class<?>...
* @param jarPath jar类路径,格式如:classpath:plugins/xxxx.jar * @param classLoader 类加载器 */ public static void loadJar(String jarPath,HotClassLoader classLoader) throws Exception{ /**先尝试从jar更新时间map中取出jarPath的更新时间*/ Long lastModifyTime = jarUpdateTime.get(jarPath); /**...
文件FilexmlFile=newFile(tempDir+"/"+xmlPath);modifyXml(xmlFile);// 将修改后的xml文件重新写入到jar文件中updateJar(jarPath,tempDir);// 删除临时目录中的文件deleteTempFiles(tempDir);}privatestaticvoidunzipJar(StringjarPath,StringtempDir)throwsIOException{try(ZipFilezipFile=newZipFile(jarPath)){...
一、使用反编译工具JD-GUI(JD-GUI相关操作见Java---反编译class文件)打开要修改的jar包(如update.jar),找到jar包中要修改的class文件(如a.class) 二、打开Eclipse新建一个Java工程(如demo),并添加一个类(如A.java:该类名与a.class文件中的类名一致,所在包结构与a.class文件中的类所在的包结构一致),复制a...
jar {ctxui}[vfmn0PMe] [jar-file] [manifest-file] [entry-point] [-C dir] files ... 1 选项: -c (create)创建新档案 -t 列出档案目录 -x 从档案中提取指定的 (或所有) 文件 -u (update)更新现有档案 -v 在标准输出中生成详细输出
m---Used to include manifest information from an existing manifest file.5. 更新jar文件jar uf jar-file input-file(s)u---want to update an existing JAR file.-->生成exe:<--第一种：在jbuilder中：首先你要保证Run菜单-->Run Project能顺利运行然后Wizards菜单-->Native Executable ...
The Java Card team is excited to announce the general availability of the Java Card Development Kit v24.1. This significant update improves the Oracle comprehensive stand-alone development environment, which includes tools, a simulator and a plugin, enabling the design of applications for Java Card…...
public void reStartXihetool() {//重新运行新版jar包 try { File dir = new File(""); String basepath = dir.getAbsolutePath(); Runtime rt = Runtime.getRuntime(); Process p = rt.exec("java -cp \"" + basepath + "/" + filename + "\" com.test skipUpdate");// com.test为jar...
如果调试无Main-Class属性的 JAR 文件,可以使用 JAR URL 语法jar:<url>!/{entry}(在 Java 2 平台标准版的JarURLConnection类中指定)来指定主类的名称,如以下示例所示。 (dbx)debug jar:myjar.jar!/myclass.class(dbx)debug jar:/a/b/c/d/e.jar!/x/y/z.class(dbx)debug jar:file:/a/b/c/d.jar...