从netbeans/jar启动TrueZip时可以正常工作，但不能从javaws启动

Question

我在应用程序中使用TrueZip将文件/文件夹添加到模板zip中，然后将zip移动到用户指定的位置。当我从Netbeans运行应用程序或从命令提示符运行.jar时，一切都会按照我的意愿运行。如果用户将zip命名为"test"，那么将在指定的位置创建两个文件，即test.zip和一个名为"test.zip。｛随机数｝.tmp"的tmp文件，当应用程序关闭时，tmp文件将被删除。

现在，当我使用Java web Start将我的应用程序部署到web服务器并运行它时，两个文件会再次创建，但当应用程序关闭时，tmp文件不会被删除，当我试图打开创建的zip时，我会收到消息，"归档文件的格式未知或已损坏"。

我不明白为什么它在netbeans或.jar中运行良好，但在web启动中却不行。

调用创建zip的类的代码：

JFileChooser chooser = new JFileChooser();
    chooser.setAcceptAllFileFilterUsed(false);
    chooser.addChoosableFileFilter(new FileFilter() { 
        @Override
        public boolean accept(File file) {
            if (file.isDirectory()) {
                return true;
            }
            if(file.getName().toLowerCase().endsWith(".zip")) {
                return true;
            }
            return false;
        }
        @Override
        public String getDescription() {
            return "*.zip";
        }
    });
    int rVal = chooser.showSaveDialog(this);
    if (rVal == JFileChooser.APPROVE_OPTION) {
        try {
            //Get savepath and ensure it ends with .zip extension
            String savePath = chooser.getSelectedFile().getCanonicalPath();
            if (!savePath.endsWith(".zip")) {
                savePath = savePath.concat(".zip");
            }
            PackageBuilder build = new PackageBuilder(groups, calibData);
            build.buildZip(savePath);
        } catch (IOException ex) {
            System.out.println(ex);
        }
    }

PackageBuilder类：

package apkinstallingaromacreator;
import de.schlichtherle.truezip.file.TFile;
import de.schlichtherle.truezip.file.TFileWriter;
import java.io.File;
import java.io.IOException;
import java.io.Writer;
import java.net.URL;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.apache.commons.io.FileUtils;
public class PackageBuilder {
    private File workingArchive;
    private AromaConfigBuilder aromaBuilder;
    private UpdaterScriptBuilder updaterBuilder;
    private ApkGroup[] groups;
    public PackageBuilder(ApkGroup[] groups, String calibData) {
        workingArchive = new File(System.getProperty("java.io.tmpdir"), "aromabuild.zip");
        aromaBuilder = new AromaConfigBuilder(groups, calibData);
        updaterBuilder = new UpdaterScriptBuilder(groups);
        this.groups = groups;
        //Get template.zip from jar package and move it to system tmp directory
        URL templateUrl = getClass().getResource("resources/template.zip");
        try {
            FileUtils.copyURLToFile(templateUrl, workingArchive);
        } catch (IOException ex) {
            System.out.println("Failed to copy template zip from resources");
            Logger.getLogger(PackageBuilder.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
    public void importApkFiles() {
        //For each Apk in each ApkGroup add Apk file to zip in system tmp directory
        //If Apk doesn't list a file, create an empty directory for adding manually
        for (int x = 0; x < groups.length; x++) {
            Apk[] apks = groups[x].getApkArray();
            for (int y = 0; y < apks.length; y++) {
                if (apks[y].getApkFileLocation().isEmpty()) {
                    TFile dir = new TFile(workingArchive, "data/" + apks[y].getApkName());
                    dir.mkdir();
                }
                else {
                    TFile src = new TFile(apks[y].getApkFileLocation());
                    TFile dst = new TFile(workingArchive, "data/" + apks[y].getApkName() + 
                            "/" + apks[y].getApkName() + ".apk");
                    try {
                        src.cp_rp(dst);
                    } catch (IOException ex) {
                        Logger.getLogger(PackageBuilder.class.getName()).log(Level.SEVERE, null, ex);
                    }
                }
            } 
        }
    }
    public void buildZip(String savePath) {
        //populate aroma-config file within template.zip
        File aroma = new TFile(workingArchive, "META-INF/com/google/android/aroma-config");
        try {
            Writer aromaWriter = new TFileWriter(aroma);
            aromaWriter.write(aromaBuilder.buildConfig());
            aromaWriter.close();
        } catch (IOException ex) {
            Logger.getLogger(PackageBuilder.class.getName()).log(Level.SEVERE, null, ex);
        }
        //Populate updater-script file within template.zip
        File updater = new TFile(workingArchive, "META-INF/com/google/android/updater-script");
        try {
            Writer updaterWriter = new TFileWriter(updater);
            updaterWriter.write(updaterBuilder.buildConfig());
            updaterWriter.close();
        } catch (IOException ex) {
            Logger.getLogger(PackageBuilder.class.getName()).log(Level.SEVERE, null, ex);
        }
        importApkFiles();
        //Copy the zip from system tmp directory to user specified location
        TFile src = new TFile(workingArchive);
        TFile dst = new TFile(savePath);
        try {
           src.cp_rp(dst);
        } catch (IOException ex) {
            Logger.getLogger(PackageBuilder.class.getName()).log(Level.SEVERE, null, ex);
        }   
    }
}

Answer 1

显然，关闭挂钩并不是为了将更改提交到任何存档文件而运行的。只要在适当的地方添加对TVFS.umount()的调用，例如在buildZip的finally块中。确保在处理完归档文件后只调用一次，而不是每次更改，因为这会导致二次运行时间。

需要改进的地方：

• 使workingArchive成为TFile，而不仅仅是File，以提高性能
• 删除对importApkFiles()中dir.mkdir()的调用。在归档文件中，它不是必需的，并且会导致多余的归档条目