本文共 6425 字，大约阅读时间需要 21 分钟。

public synchronized void backUp(HttpServletRequest request, HttpServletResponse response) throws Exception {
    String data = "许可无效!";
    if (!MapAccessBean.getIsValid()) {
        response.setContentType("text/html;charset=UTF-8");
        data = "";
        System.out.println("key01" + data);
        response.getWriter().print(data);
        return;
    }
    if (!("on".equals(request.getParameter("KMLModel")) && "on".equals(request.getParameter("lic")))) {
        data = "请勾选需要还原的文件!";
        response.setContentType("text/html;charset=UTF-8");
        data = "";
        response.getWriter().print(data);
        return;
    }
    final String KMLModel = GetRealPath.getRootPath() + File.separator + "KmlModel";
    final String images = GetRealPath.getRootPath() + File.separator + "images";
    final String layerTree = GetRealPath.getRootPath() + File.separator + "tree.xml";
    final String lic = GetRealPath.getRootPath() + File.separator + "sysconfig";
    String filePath = tempPath + File.separator + "backUp.zip";
    File f = new File(tempPath);
    if (!f.exists()) {
        f.mkdir();
    }
    f = new File(filePath);
    if (f.exists()) {
        f.delete();
    }
    ZipFile zipFile = new ZipFile(filePath);
    ZipParameters parameters = new ZipParameters();
    parameters.setCompressionMethod(Zip4jConstants.COMP_DEFLATE);
    parameters.setEncryptFiles(true);
    parameters.setEncryptionMethod(Zip4jConstants.ENC_METHOD_STANDARD);
    parameters.setPassword("!@#$%^&*()");
    parameters.setCompressionLevel(Zip4jConstants.DEFLATE_LEVEL_NORMAL);
    if ("on".equals(request.getParameter("KMLModel"))) {
        f = new File(KMLModel);
        if (!f.exists()) {
            f.mkdir();
        }
        zipFile.addFolder(KMLModel, parameters);
        zipFile.addFolder(images, parameters);
        zipFile.addFile(new File(layerTree), parameters);
    }
    if ("on".equals(request.getParameter("lic"))) {
        f = new File(lic);
        String[] filelist = f.list();
        if (filelist != null) {
            for (String fileName : filelist) {
                if (fileName.lastIndexOf(".lic") != -1) {
                    zipFile.addFile(new File(lic + fileName), parameters);
                }
            }
        }
    }
    if (!zipFile.isValidZipFile()) {
        throw new ZipException("压缩文件不合法,可能被损坏.");
    }
    response.reset();
    response.setContentType("application/zip");
    response.setHeader("Content-Disposition", "attachment; filename=backUp.zip");
    try {
        java.io.FileInputStream in = new java.io.FileInputStream(filePath);
        byte[] b = new byte[512];
        ServletOutputStream o = response.getOutputStream();
        while (-1 != (bytesRead = in.read(b, 0, b.length))) {
            o.write(b, 0, bytesRead);
        }
        in.close();
        o.close();
        response.flushBuffer();
    } catch (IOException e) {
        in.close();
        System.out.println(e.getMessage());
    } catch (Exception e) {
        System.out.println(e.getMessage());
    } finally {
        // o.close();
        // if (o != null) {
        // o.close();
        // }
        // if (in != null) {
        // in.close();
        // }
    }
    try {
        File f2 = new File(filePath);
        if (f2.exists()) {
            f2.delete();
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

public ModelAndView restore(HttpServletRequest request, HttpServletResponse response) throws Exception {
    ModelAndView modelAndView = new ModelAndView();
    modelAndView.setViewName("backUpAndRestore");
    File f = new File(tempPath);
    System.out.println("tempPath:" + tempPath);
    if (!f.exists()) {
        f.mkdir();
    }
    String data = "许可无效!";
    FileItemFactory factory = new DiskFileItemFactory();
    ServletFileUpload upload = new ServletFileUpload(factory);
    HashMap params = new HashMap();
    try {
        List items = upload.parseRequest(request);
        for (Iterator it = items.iterator(); it.hasNext();) {
            FileItem fileItem = (FileItem) it.next();
            if (fileItem.isFormField()) {
                try {
                    params.put(fileItem.getFieldName(), fileItem.getString("UTF-8"));
                } catch (UnsupportedEncodingException e) {
                    e.printStackTrace();
                }
            } else {
                String fileName = fileItem.getName();
                if (!fileName.endsWith(".zip")) {
                    try {
                        throw new Exception(Catalog.getLocalizationForKey("KmlController.ZIPAllowed"));
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }
                File file = new File(tempPath, "restore.zip");
                try {
                    fileItem.write(file);
                } catch (Exception e1) {
                    e1.printStackTrace();
                }
                ZipFile zipFile = new ZipFile(file);
                if (!zipFile.isValidZipFile()) {
                    try {
                        throw new ZipException("压缩文件不合法,可能被损坏.");
                    } catch (ZipException e) {
                        data = "1";
                        modelAndView.addObject("message", data);
                        return modelAndView;
                    }
                }
                if (zipFile.isEncrypted()) {
                    zipFile.setPassword("!@#$%^&*()");
                    zipFile.extractAll(GetRealPath.getRootPath());
                } else {
                    data = "2";
                    modelAndView.addObject("message", data);
                    return modelAndView;
                }
            }
        }
    } catch (FileUploadException e1) {
        e1.printStackTrace();
    }
    if (!MapAccessBean.getIsValid()) {
        data = "4";
        modelAndView.addObject("message", data);
        return modelAndView;
    } else {
        modelAndView.addObject("message", Catalog.getLocalizationForKey("KmlController.restorSuccess"));
        if ("on".equals(params.get("checkURL"))) {
            try {
                kmlService.checkIconUrl(request.getServerName() + ":" + request.getServerPort());
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        SysConfig.getInstance().init();
    }
    return modelAndView;
}

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