使用Vaadin获取Liferay用户信息

时间:2011-11-16 08:45:24

标签: java liferay vaadin

我需要检查我的portlet,用户选择哪种语言作为他的“主要”语言,为此,我必须首先获得UserID(名称)。我一直在寻找它两天(Liferay论坛,vaadin论坛,stackoverflow等),但到目前为止没有找到任何工作。

我找到了一个很好的例子,但它似乎无法工作(它总是返回“null”)。

package com.example.translation_portlet;

import javax.portlet.PortletRequest;
import javax.portlet.PortletResponse;


import com.liferay.portal.kernel.exception.PortalException;
import com.liferay.portal.kernel.exception.SystemException;
import com.liferay.portal.model.User;
import com.liferay.portal.util.PortalUtil;
import com.vaadin.Application;
import com.vaadin.terminal.gwt.server.PortletRequestListener;
import com.vaadin.ui.Label;
import com.vaadin.ui.Window;

public class Translation_portletApplication extends Application implements
        PortletRequestListener {

    /**
     * 
     */
    private static final long serialVersionUID = 1L;

    @Override
    public void init() {
        Window mainWindow = new Window("LoginApplication");

        Label label = new Label("Hello anonymous Vaadin user");
        if (getUser() != null) {
            // user has logged in
            label = new Label("Hello " + ((User) getUser()).getFullName());
        }
        mainWindow.addComponent(label);
        setMainWindow(mainWindow);
    }

    @Override
    public void onRequestStart(PortletRequest request, PortletResponse response) {
        if (getUser() == null) {
            try {
                User user = PortalUtil.getUser(request);
                setUser(user);
            } catch (PortalException e) {
                e.printStackTrace();
            } catch (SystemException e) {
                e.printStackTrace();
            }
        }
    }

    @Override
    public void onRequestEnd(PortletRequest request, PortletResponse response) {
        // Nothing to do here currently, exists only to implement the
        // PortletRequestListener interface.
    }

}

编辑:

这是我到目前为止所尝试的:

locale = user.getLocale();
button.setCaption(LanguageUtil.get(locale, "first_name"));

在我的Language.properties中,我将“first_name”的翻译设置为1st Name:

first_name=1st Name

Language.properties文件位于我添加的内容文件夹中,资源包也添加到我的portlet.xml中:

    <resource-bundle>content/Language</resource-bundle>

按钮的标题设置为“first_name”而不是第一个名称,如果我将密钥更改为名字,我将从language.properties文件中获取默认翻译而不是我的翻译,我错过了什么?

3 个答案:

答案 0 :(得分:1)

你试过

吗?
final ThemeDisplay themeDisplay = (ThemeDisplay) request.getAttribute(WebKey.THEME_DISPLAY);
themeDisplay.getUser().getLanguageId();

需要进口

import javax.portlet.PortletRequest;
import com.liferay.portal.kernel.util.WebKeys;
import com.liferay.portal.theme.ThemeDisplay;

编辑:

试试这个

   @Override
public void onRequestStart(PortletRequest request, PortletResponse response) {

            final ThemeDisplay themeDisplay = (ThemeDisplay) request.getAttribute(WebKey.THEME_DISPLAY);
            final User user = themeDisplay.getUser();

            if (user != null) {
                // will be printed to log/console
                System.out.println("User's language id = " + user.getLanguageId());
            } else {
                System.out.println("Guest user.");
            }

            setUser(user);
}

您也可以尝试

@Override
public void init() {
    Window mainWindow = new Window("LoginApplication");

    Label label = new Label("Hello anonymous Vaadin user");
    if (getUser() != null) {
        // user has logged in
        label = new Label("Hello " + ((User) getUser()).getFullName() + ", language id is '" + user.getLanguageId() + "'");
    }
    mainWindow.addComponent(label);
    setMainWindow(mainWindow);
}

EDIT2:

这是适合我的完整示例。尝试一下,如果它不起作用,请显示你的portlet.xml,web.xml和liferay-portlet.xml

package com.test;

import java.util.Iterator;

import javax.portlet.PortletRequest;
import javax.portlet.PortletResponse;

import com.liferay.portal.kernel.util.WebKeys;
import com.liferay.portal.model.User;
import com.liferay.portal.theme.ThemeDisplay;
import com.vaadin.Application;
import com.vaadin.terminal.gwt.server.PortletRequestListener;
import com.vaadin.ui.Component;
import com.vaadin.ui.Label;
import com.vaadin.ui.Window;

public class Translation_portletApplication  extends Application implements PortletRequestListener {

    private User m_user;

    @Override
    public void init() {
        Window window = new Window("Vaadin Portlet Application");
        setMainWindow(window);
        String caption = "Hello Vaadin user!";

        if (m_user != null) {
            caption = caption + " with language id '" + m_user.getLanguageId() + "'";
        }
        window.addComponent(new Label(caption));
    }

    @Override
    public void onRequestEnd(PortletRequest p_request, PortletResponse p_response) {
        System.out.println("onRequestEnd");
    }

    @Override
    public void onRequestStart(PortletRequest p_request, PortletResponse p_response) {
        final ThemeDisplay themeDisplay = (ThemeDisplay) p_request.getAttribute(WebKeys.THEME_DISPLAY);
        m_user =  themeDisplay.getUser();
    }
}

EDIT3:

要从您的属性文件中获取标题,您可以尝试(假设上面的类)

Button button = new Button() {
    @Override
    public void attach() {
        ResourceBundle bundle = ResourceBundle.getBundle(Translation_portletApplication.class.getName(), user.getLocale());
        setCaption(bundle.getString("first_name"));
    }
};
window.addComponent(button);

答案 1 :(得分:1)

另一种可能性是:

VaadinSession.getCurrent().getLocale()

来自用户浏览器,但反映了liferay中的用户设置。

答案 2 :(得分:0)

如果您在liferay中的portletContext中运行vaadin应用程序,则需要在此处监听portletlisteners,这是指向example的链接。

实现监听器时,你需要实现监听器:

  1. handleActionRequest
  2. handleEventRequest
  3. handleRenderRequest
  4. handleResourceRequest
  5. 当启动应用程序时,所以运行MainApplication init()方法,并在u(init)监听方法后自动运行侦听器方法。 handleRenderRequest方法你可以调用request.getRemoteUser()。它返回数字编号,即远程用户ID,或者在任何编码中没有复制时返回null。

    portletApplicationContext2