我如何在liferay中上传文件答案

【问题标题】：How can I upload file in liferay我如何在liferay中上传文件
【发布时间】：2014-12-17 11:57:33
【问题描述】：

在 Liferay 中上传文件

任何人都可以帮助我如何使用 DLFileEntry 将我的文件上传到文档和媒体文件夹中我搜索但没有得到确切的代码。我怎样才能做到这一点。我只是将我的文件控制器放在 jsp 文件中。我尝试使用以下代码

UploadPortletRequest uploadRequest = PortalUtil.getUploadPortletRequest(actionRequest);

String sourceFileName = uploadRequest.getFileName("fileName");
System.out.println("file name  " + sourceFileName);

File file = uploadRequest.getFile("fileName");
ThemeDisplay themeDisplay = (ThemeDisplay) actionRequest.getAttribute(WebKeys.THEME_DISPLAY);
System.out.println("User Id " + themeDisplay.getUserId() + ": " + themeDisplay.getScopeGroupId());
long FOLDER_ID = 0;
long repositoryId = themeDisplay.getScopeGroupId();
long parentFolderId = DLFolderConstants.DEFAULT_PARENT_FOLDER_ID;
List<Folder> lFolder = DLAppServiceUtil.getFolders(repositoryId, parentFolderId);
for (Folder folder : lFolder) {
    System.out.println(lFolder);
    System.out.println(folder.getFolderId());
}

//ServiceContext serviceContext = ServiceContextFactory.getInstance(actionRequest);
ServiceContext serviceContext = ServiceContextFactory.getInstance(FileEntry.class.getName(), actionRequest);
System.out.println("hello");
long defaultRepoId = DLFolderConstants.getDataRepositoryId(themeDisplay.getScopeGroupId(),DLFolderConstants.DEFAULT_PARENT_FOLDER_ID);

DLFileEntry dlFileEntry=DLFileEntryLocalServiceUtil.addFileEntry(themeDisplay.getUserId(),themeDisplay.getScopeGroupId(), defaultRepoId, 12518, sourceFileName, MimeTypesUtil.getContentType(file), "fileTitle", "fileDesc", "sss",0,null,file,null,file.length(),serviceContext);

DLFileEntryLocalServiceUtil.updateFileEntry(themeDisplay.getUserId(), dlFileEntry.getFileEntryId(), sourceFileName, MimeTypesUtil.getContentType(file), "fileTitle", "fileDesc", "comment", true, dlFileEntry.getFileEntryTypeId(), null,file, null, file.length(), serviceContext);

但没有成功。

谁能在这里复制粘贴代码？

提前致谢

【问题讨论】：

你能提供你试过的代码吗？
感谢回复我编辑我的问题
文件夹Uploads 是否存在？如果在此代码执行时您尚未创建该文件夹，则会出现错误。
是的，这是存在的。但我更新了我的代码看看..
使用编辑之前提供的代码（确保子文件夹存在）和新添加的源，上传文件没有问题。我必须强调，我并没有只是将我的文件控制器放在 jsp 文件中。 将源移动到实际的操作方法并在那里继续努力。

标签： liferay liferay-6

【解决方案1】：

如果有人偶然发现：

上传文件.jsp：

<%@ taglib uri="http://java.sun.com/portlet_2_0" prefix="portlet" %>
<%@ taglib uri="http://liferay.com/tld/aui" prefix="aui" %>

<portlet:defineObjects />

<portlet:actionURL name='uploadFile' var="uploadFileURL" windowState="normal" />

<aui:form action="<%= uploadFileURL %>" method="POST" name="fm" enctype="multipart/form-data">
  <aui:fieldset>

    <aui:input type="file" name="file-to-upload"/>

    <aui:button-row>
      <aui:button type="submit" />
    </aui:button-row>

  </aui:fieldset>
</aui:form>

MyPortlet.java：

public class MyPortlet extends MVCPortlet {

//action method
public void uploadFile(ActionRequest request, ActionResponse response)
        throws Exception {

    UploadPortletRequest uploadRequest 
        = PortalUtil.getUploadPortletRequest(request);

    ServiceContext serviceContext = ServiceContextFactory.getInstance(
            MyPortlet.class.getName(), uploadRequest);

    this.uploadFileEntity(serviceContext, uploadRequest);

    response.setRenderParameter("mvcPath", "/html/view.jsp");
}

// Create a folder called "A_FOLDER" in Documents & Media
private void uploadFileEntity(ServiceContext serviceContext, 
        UploadPortletRequest request) 
                throws PortalException, SystemException {

    String filename = "";
    String description = "File description";

    try{

        // serviceContext.scopeGroupId is the groupId of a site
        long repositoryId = DLFolderConstants.getDataRepositoryId(
            serviceContext.getScopeGroupId(), 
            DLFolderConstants.DEFAULT_PARENT_FOLDER_ID);


        Folder f = DLAppLocalServiceUtil.getFolder(
            repositoryId, 0L, "A_FOLDER");
        long folderId = f.getFolderId();


        File file = request.getFile("file-to-upload");
        filename = request.getFileName("file-to-upload");
        String mimeType =  MimeTypesUtil.getContentType(file);

        FileEntry entry = DLAppLocalServiceUtil.addFileEntry(serviceContext.getUserId(), 
                repositoryId, folderId, filename, 
                mimeType, filename, description, "", 
                file, serviceContext
        );  

    }catch(PortalException e){
        _log.error("An exception occured uploading file: " 
                + e.getMessage());
        throw e;
    }catch(SystemException e ){
        _log.error("An exception occured uploading file: " 
                + e.getMessage());
        throw e;
    }
}

private static Log _log = LogFactoryUtil.getLog(MyPortlet.class);
}

【讨论】：