使用Java修改jar文件中的xml文件

import java.io.*;
import java.util.zip.*;

public class JarFileEditor {
    public static void main(String[] args) throws IOException {
        String jarPath = "path/to/jar/file";
        String xmlPath = "path/to/xml/file";
        String tempDir = "path/to/temp/dir";

        // 解压jar文件到临时目录
        unzipJar(jarPath, tempDir);

        // 读取并修改xml文件
        File xmlFile = new File(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);
    }

    private static void unzipJar(String jarPath, String tempDir) throws IOException {
        try (ZipFile zipFile = new ZipFile(jarPath)) {
            Enumeration<? extends ZipEntry> entries = zipFile.entries();
            while (entries.hasMoreElements()) {
                ZipEntry entry = entries.nextElement();
                File entryDestination = new File(tempDir, entry.getName());
                if (entry.isDirectory()) {
                    entryDestination.mkdirs();
                } else {
                    entryDestination.getParentFile().mkdirs();
                    try (InputStream in = zipFile.getInputStream(entry);
                         OutputStream out = new FileOutputStream(entryDestination)) {
                        byte[] buffer = new byte[1024];
                        int bytesRead;
                        while ((bytesRead = in.read(buffer)) != -1) {
                            out.write(buffer, 0, bytesRead);
                        }
                    }
                }
            }
        }
    }

    private static void modifyXml(File xmlFile) throws IOException {
        // 读取xml文件，进行修改
    }

    private static void updateJar(String jarPath, String tempDir) throws IOException {
        try (ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream(jarPath))) {
            File[] files = new File(tempDir).listFiles();
            if (files != null) {
                for (File file : files) {
                    if (file.isDirectory()) {
                        continue;
                    }
                    try (InputStream input = new FileInputStream(file)) {
                        ZipEntry entry = new ZipEntry(file.getPath().substring(tempDir.length() + 1));
                        zipOut.putNextEntry(entry);
                        byte[] buffer = new byte[1024];
                        int bytesRead;
                        while ((bytesRead = input.read(buffer)) != -1) {
                            zipOut.write(buffer, 0, bytesRead);
                        }
                        zipOut.closeEntry();
                    }
                }
            }
        }
    }

    private static void deleteTempFiles(String tempDir) {
        File temp = new File(tempDir);
        if (temp.exists()) {
            deleteFiles(temp);
        }
    }

    private static void deleteFiles(File file) {
        if (file.isDirectory()) {
            File[] files = file.listFiles();
            if (files != null) {
                for (File child : files) {
                    deleteFiles(child);
                }
            }
        }
        file.delete();
    }
}