Warning: file_get_contents(/data/phpspider/zhask/data//catemap/9/java/335.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181
Java 我无法设置通过代码添加到jar中的类文件的路径_Java_Executable Jar - Fatal编程技术网

Java 我无法设置通过代码添加到jar中的类文件的路径

Java 我无法设置通过代码添加到jar中的类文件的路径,java,executable-jar,Java,Executable Jar,ModifiedFile的路径:D:\ModifiedJavaFiles\com\example\tests\ 因此,这些类是在这个文件夹中生成的,Jar路径是:D:\test.Jar 我想在jar中将这些类的路径设置为com/example/tests 任何帮助都将不胜感激 为了添加信息,在编译类之后,我从路径中获取类并调用updateZipFile方法来更新jar public static int compileModifiedClass(String ModifiedFile) {

ModifiedFile的路径:D:\ModifiedJavaFiles\com\example\tests\

因此,这些类是在这个文件夹中生成的,Jar路径是:D:\test.Jar

我想在jar中将这些类的路径设置为com/example/tests

任何帮助都将不胜感激

为了添加信息,在编译类之后,我从路径中获取类并调用updateZipFile方法来更新jar

public static int compileModifiedClass(String ModifiedFile)
{
    JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
    int result = compiler.run(null, null, null, ModifiedFile);
    System.out.println("Compile result code = " + result);
    return result;
}
classes=getClassesFromPath(modifiedfilepath,JarPath);
文件jarFile=新文件(JarPath);
JarUpdater JarUpdater=新的JarUpdater();
尝试
{
updateZipFile(jarFile,类);
}
捕获(IOE异常)
{
e、 printStackTrace();
}
public void updateZipFile(文件zipFile,
文件[]文件)引发IOException{
//获取临时文件
File tempFile=File.createTempFile(zipFile.getName(),null);
//删除它,否则无法将现有zip重命名为它。
tempFile.delete();
布尔renameOk=zipFile.renameTo(tempFile);
如果(!renameOk)
{
抛出新的RuntimeException(“无法将文件“+zipFile.getAbsolutePath()+”重命名为“+tempFile.getAbsolutePath()”);
}
字节[]buf=新字节[1024];
ZipInputStream zin=新的ZipInputStream(新文件输入流(tempFile));
ZipOutputStream out=newzipoutpstream(newfileoutputstream(zipFile));
ZipEntry entry=zin.getNextEntry();
while(条目!=null){
String name=entry.getName();
布尔notInFiles=true;
用于(文件f:文件){
如果(f.getName().equals(name)){
notInFiles=false;
打破
}
}
如果(未填充){
//将ZIP条目添加到输出流。
out.putNextEntry(新ZipEntry(名称));
//将字节从ZIP文件传输到输出文件
内伦;
而((len=zin.read(buf))>0){
out.write(buf,0,len);
}
}
entry=zin.getnextery();
}
//关闭溪流
zin.close();
//压缩文件
对于(int i=0;i0){
out.write(buf,0,len);
}
//完成条目
out.closeEntry();
in.close();
}
//完成ZIP文件
out.close();
tempFile.delete();
} 
URL jar=jarFile.toURI().tour();
URL dir=新URL(“文件:/D:/ModifiedJavaFiles/”;
URL[]URL={jar,dir};
URLClassLoader=新的URLClassLoader(URL);
类klazz=loader.loadClass(“com.example.tests.MyTest”);
loader.close();
classes = getClassesFromPath(ModifiedFilesPath, JarPath);
                        File jarFile = new File(JarPath);
                        JarUpdater jarUpdater = new JarUpdater();
                        try 
                        {
                            jarUpdater.updateZipFile(jarFile, classes);
                        }
                        catch (IOException e) 
                        {
                            e.printStackTrace();
                        }

public void updateZipFile(File zipFile,
             File[] files) throws IOException {
               // get a temp file
        File tempFile = File.createTempFile(zipFile.getName(), null);
               // delete it, otherwise you cannot rename your existing zip to it.
        tempFile.delete();

        boolean renameOk=zipFile.renameTo(tempFile);
        if (!renameOk)
        {
            throw new RuntimeException("could not rename the file "+zipFile.getAbsolutePath()+" to "+tempFile.getAbsolutePath());
        }
        byte[] buf = new byte[1024];

        ZipInputStream zin = new ZipInputStream(new FileInputStream(tempFile));
        ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipFile));

        ZipEntry entry = zin.getNextEntry();
        while (entry != null) {
            String name = entry.getName();
            boolean notInFiles = true;
            for (File f : files) {
                if (f.getName().equals(name)) {
                    notInFiles = false;
                    break;
                }
            }
            if (notInFiles) {
                // Add ZIP entry to output stream.
                out.putNextEntry(new ZipEntry(name));
                // Transfer bytes from the ZIP file to the output file
                int len;
                while ((len = zin.read(buf)) > 0) {
                    out.write(buf, 0, len);
                }
            }
            entry = zin.getNextEntry();
        }
        // Close the streams        
        zin.close();
        // Compress the files
        for (int i = 0; i < files.length; i++) {
            InputStream in = new FileInputStream(files[i]);
            // Add ZIP entry to output stream.
            out.putNextEntry(new ZipEntry(files[i].getName()));
            // Transfer bytes from the file to the ZIP file
            int len;
            while ((len = in.read(buf)) > 0) {
                out.write(buf, 0, len);
            }
            // Complete the entry
            out.closeEntry();
            in.close();
        }
        // Complete the ZIP file
        out.close();
        tempFile.delete();
    } 
URL jar = jarFile.toURI().toURL();
URL dir = new URL("file:/D:/ModifiedJavaFiles/");
URL[] urls = { jar, dir };
URLClassLoader loader = new URLClassLoader(urls);
Class<?> klazz = loader.loadClass("com.example.tests.MyTest");
loader.close();