Question

此问题与Liferay中的Document and Media Portlet有关。

我正在使用Liferay 6.1.2-ce-ga3。

我有一个portlet，它允许显示在Liferay的文档和媒体portlet中创建的目录的文档列表。

此portlet项目允许在表格中显示文档列表，并使用Liferay和JavaScript下载多个文件。

当我部署新版本或更新liferay portlet时，我遇到以下问题：

问题1：NoSuchFolderException

com.liferay.portlet.documentlibrary.NoSuchFolderException：No DLFolder 密钥{groupId = 10165，parentFolderId = 0，name =}
存在

在Document and Media Portlet中，该目录已存在。要解决NoSuchFolder问题，我删除旧文件夹，然后创建一个新文件夹。

问题2：未定义404的Ajax错误

未捕获（在promise中）错误：未定义的Ajax错误：404 Introuvable 在XMLHttpRequest.n.onreadystatechange

此问题与此问题有关：Why i am getting Ajax error for undefined : 404 Not Found?

要修复多重下载问题，我会删除所有文件，然后添加新文件。

我认为这是liferay本身的一个问题。

我检查了文件夹和文件，它们已经存在。

每当我部署新版本或更新portlet liferay时，我都会遇到问题。我每次都要删除文件夹和这些文件并再次创建它。

重新创建文件没有意义。

如何解决这些问题NoSuchFolderException和Ajax error for undefined 404？

java代码：

public class MyPortlet extends MVCPortlet {
    private static long ROOT_FOLDER_ID = DLFolderConstants.DEFAULT_PARENT_FOLDER_ID;
    @Override
    public void doView(RenderRequest renderRequest, RenderResponse renderResponse) throws IOException, PortletException {
    ThemeDisplay themeDisplay = (ThemeDisplay) renderRequest.getAttribute(WebKeys.THEME_DISPLAY);
    PortletPreferences pref = renderRequest.getPreferences();
    String folders_cfg = pref.getValue("foldersKey", "");
    FOLDERS_NAME = Collections.unmodifiableList(Arrays.asList(folders_cfg.split(",")));
        .
        .
        .
        List<DLFileEntry> listFiles = new ArrayList<DLFileEntry>();
        List<DLFileEntry> listContextFiles = new ArrayList<DLFileEntry>();
        try {
        listFiles = getAllFiles(themeDisplay);
        listContextFiles = getAllFiles(themeDisplay);
        } catch (PortalException e1) {
        e1.printStackTrace();
        } catch (SystemException e1) {
        e1.printStackTrace();
        }
        .
        .
        .
        for(DLFileEntry file : listFiles){
            ...
        }

        List<DLFileEntry> list = getListFiles(listContextFiles, listAllDate);
        renderRequest.setAttribute("listFiles", list);
        super.doView(renderRequest, renderResponse);
    }

    private List<DLFileEntry> getListFiles(List<DLFileEntry> listContextFiles,
        List<Date> listAllDate) {
        List<DLFileEntry> list = new ArrayList<DLFileEntry>();
        for (int i = 0; i <listContextFiles.size(); i++) {
        listContextFiles.get(i).setModifiedDate(listAllDate.get(i));
        list.add(listContextFiles.get(i));
        }
        return list;
    }

    public List<DLFileEntry> getAllFiles(ThemeDisplay themeDisplay) throws PortalException, SystemException{
        List<DLFileEntry> fileEntries = new ArrayList<DLFileEntry>();
        long globalGroupId = GroupLocalServiceUtil.getCompanyGroup(PortalUtil.getDefaultCompanyId()).getGroupId();

        for(String folderName : FOLDERS_NAME){
        try {
        Folder folder = DLAppServiceUtil.getFolder(globalGroupId, ROOT_FOLDER_ID, folderName);
        fileEntries.addAll(DLFileEntryLocalServiceUtil.getFileEntries(globalGroupId,folder.getFolderId(),-1, -1, null));

        for(Long subFolder : DLAppServiceUtil.getSubfolderIds(globalGroupId, folder.getFolderId())){
        fileEntries.addAll(DLFileEntryLocalServiceUtil.getFileEntries(globalGroupId, subFolder,-1, -1, null));
        }
        } catch (Exception e) { 
        e.printStackTrace();
        }
        }
        return fileEntries;
    }
}

jsp代码：

<form action="#" id="download_form">
    <liferay-ui:search-container orderByCol="<%=sortByCol%>"
        orderByType="<%=sortByType%>" iteratorURL="<%=actionURL%>"
        delta="10" emptyResultsMessage="no-documents">
        <liferay-ui:search-container-results>
            <%
                List<DLFileEntry> fileList = (List<DLFileEntry>) request.getAttribute("listFiles");
                OrderByComparator orderByComparator = OrderByComparatorFactoryUtil.create("DLFileEntry", "modifiedDate", false);

                ThemeDisplay themeDisplay = (ThemeDisplay) request.getAttribute(WebKeys.THEME_DISPLAY);
                OrderByComparator orderByComparatorDate =        
                        CustomComparatorUtil.getFileOrderByComparator(sortByCol, sortByType);         
                Collections.sort(fileList, orderByComparatorDate);

                results = ListUtil.subList(fileList, searchContainer.getStart(),    
                             searchContainer.getEnd());

               if (fileList.size()< total)
                {
                   total = fileList.size();
                }
               pageContext.setAttribute("results", results);
               pageContext.setAttribute("total", total);
            %>
        </liferay-ui:search-container-results>
        <liferay-ui:search-container-row modelVar="file"
            className="DLFileEntry">
            <%
                ThemeDisplay themeDisplay = (ThemeDisplay) request.getAttribute(WebKeys.THEME_DISPLAY);
                String pdfUrl = "", excelUrl = "";
                String logo ="", vendor="", technology="", productType="", flashType="", fileTitle="", fileUrl="", file_name="";

                long globalGroupId = GroupLocalServiceUtil.getCompanyGroup(PortalUtil.getDefaultCompanyId()).getGroupId();

                if(file.getExtension().equalsIgnoreCase("pdf"))
                    pdfUrl = "<a target='_blank' href='"+ themeDisplay.getPortalURL() + themeDisplay.getPathContext() + "/documents/" + globalGroupId + StringPool.SLASH + file.getUuid()+"' ><img src='/flash-table-portlet/images/pdf.png' width='20px'/> </a>";
                else if(file.getExtension().equalsIgnoreCase("xlsx") || file.getExtension().equalsIgnoreCase("xls") || file.getExtension().equalsIgnoreCase("csv") )
                    excelUrl = "<a target='_blank' href='"+ themeDisplay.getPortalURL() + themeDisplay.getPathContext() + "/documents/" + globalGroupId + StringPool.SLASH + file.getUuid()+"' ><img src='/flash-table-portlet/images/excel.png' width='20px'/> </a>";

                String fileDate = dateFormat.format(file.getModifiedDate());
                String logoUrl = "";
                String maxWidth = "120px";
                String marginLeft = "0px";
                String marginTop = "0px";
                try{
                    Map<String, Fields> fieldsMap = file.getFieldsMap(file.getFileVersion().getFileVersionId());
                    Collection<Fields> collectionFields = fieldsMap.values();
                    for (Fields fields : collectionFields) {
                        vendor =  fields.get("vendor").getValue().toString().replace("[\"", "").replace("\"]", "");
                        if(vendor.equalsIgnoreCase("other"))
                            logo="<strong>Other</strong>";
                        else 
                        {
                             logoUrl = "/flash-table-portlet/images/vendor/"+vendor.toLowerCase()+".gif";
                             logo = "<div class='crop'><img src='"+logoUrl
                                +"' style='margin-left: "+marginLeft
                                +";margin-top: "+marginTop
                                +";max-width: "+maxWidth
                                +";' alt='"+vendor.toLowerCase()+"'/></div>";
                        }
                        technology= fields.get("technology").getValue().toString().replace("[\"", "").replace("\"]", "");
                        productType =  fields.get("producttype").getValue().toString().replace("[\"", "").replace("\"]", "");
                        flashType =  fields.get("flashtype").getValue().toString().replace("[\"", "").replace("\"]", "");

                        if(fields.get("optionaldate") != null ) {
                              DateFormat inputFormat = new SimpleDateFormat("yyyy/MM/dd");
                              Date optionalDate = inputFormat.parse((String) fields.get("optionaldate").getValue());
                              fileDate = dateFormat.format(optionalDate);
                          }
                    }
                }catch(Exception ex){
                    ex.printStackTrace();
                }
                fileUrl = themeDisplay.getPortalURL() + themeDisplay.getPathContext() + "/documents/" + globalGroupId + StringPool.SLASH + file.getUuid();
                file_name  = file.getTitle() + "." + file.getExtension();
                fileTitle =  "<div style='display:inline'>"+file.getTitle()+"</div>";
            %>

            <liferay-ui:search-container-column-text cssClass="width-1">
                <input name="<%=file_name%>" type="checkbox" data-url="<%=fileUrl%>"/>
            </liferay-ui:search-container-column-text>
            <liferay-ui:search-container-column-text name='model'
                cssClass="width-15" value="<%=fileTitle%>" />
            <liferay-ui:search-container-column-text name='executive-summary'
                cssClass="width-4" value="<%=pdfUrl%>" />
            <!-- some other search-container-column-text --> ...
        </liferay-ui:search-container-row>

        <liferay-ui:search-iterator
            searchContainer="<%= searchContainer %>"
            paginate="${fn:length(listFiles) ge 10}" /> 
        <div style="position: relative;">
            <aui:button cssClass="download-button" id="download_files" type="submit" value="Download"></aui:button>
        </div>
    </liferay-ui:search-container>
</form>

文件夹问题：有时会出现NoSuchFolderException问题，我重命名了文件夹名称以重现错误。

com.liferay.portlet.documentlibrary.NoSuchFolderException：No DLFolder 密钥{groupId = 10256，parentFolderId = 0，name = CONTEXT Flash} at com.liferay.portlet.documentlibrary.service.persistence.DLFolderPersistenceImpl.findByG_P_N（DLFolderPersistenceImpl.java:4653） at sun.reflect.NativeMethodAccessorImpl.invoke0（Native Method）at sun.reflect.NativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:57） ... 在 com.liferay.portlet.documentlibrary.service.DLAppServiceUtil.getFolder（DLAppServiceUtil.java:924）在 com.context.portlet.MyPortlet.getAllFiles（MyPortlet.java:229）在com.context.portlet.MyPortlet.doView（MyPortlet.java:64）

此问题与此行有关：Folder folder = DLAppServiceUtil.getFolder(globalGroupId, ROOT_FOLDER_ID, folderName);

文件问题：当我选择多个文件并点击下载时，我遇到了此错误404 Introuvable。

GET http://localhost:8080/undefined 404（Introuvable）Uncaught（in promise）错误：未定义的Ajax错误：404 Introuvable at XMLHttpRequest.n.onreadystatechange （jszip-utils.min.js BROWSERID =其他＆安培; minifierType = JS＆安培; languageId = EN_US和b = 6102＆amp; T公司= 1511981499426：10） GET http://localhost:8080/undefined 404（Introuvable）错误：Ajax undefined的错误：404 Introuvable at XMLHttpRequest.n.onreadystatechange （jszip-utils.min.js BROWSERID =其他＆安培; minifierType = JS＆安培; languageId = EN_US和b = 6102＆amp; T公司= 1511981499426：10）

在 docroot / html 目录中，我有以下文件：

1- init.jsp文件 允许初始化变量，它包含类似String folders_cfg = GetterUtil.getString (portletPreferences.getValue ("foldersKey", "CONTEXT Flash"));的行。语境Flash是文件夹的名称。

2-我有一个配置文件 configuration.jsp ，其中包含这样的行<aui:input name="preferences--foldersKey--" label="Folder List" type="text" required="true" value="<%= folders_cfg %>" style="width: 100%;"/>

3-我还有一个 view.jsp文件 ，该视图部分包含liferay UI Taglib以显示文档表。

FOLDERS_NAME变量在MyPortlet类的doView（）方法中初始化：

List<String> FOLDERS_NAME = new ArrayList<String>();
@Override
public void doView()...{
    PortletPreferences pref = renderRequest.getPreferences();
    String folders_cfg = pref.getValue("foldersKey", "");
    FOLDERS_NAME = Collections.unmodifiableList(Arrays.asList(folders_cfg.split(",")));
    .
    .
}

在 docroot / WEB-INF / src 目录中，我有两个文件：MyPortlet.java和ConfigurationActionImpl.java。

ConfigurationActionImpl.java：

public class ConfigurationActionImpl extends DefaultConfigurationAction{
    @Override
    public void processAction( PortletConfig portletConfig, ActionRequest actionRequest, ActionResponse actionResponse) throws Exception {  
        super.processAction(portletConfig, actionRequest, actionResponse);

        PortletPreferences prefs = actionRequest.getPreferences();
    }
}

PortletPreferences pref = renderRequest.getPreferences();中变量pref的内容：

如何使用Liferay 6.1.2-ce-ga3中的文档和媒体portlet修复NoSuchFolderException问题？

0 个答案: