Vaadin 学习记录

窗口类：

Window

它主要用来显示。

每一个Application可以设置一个主窗口比如：

Window mainWindow = new Window(messageSource.getMessage("main.window",null,Locale.CHINESE));//message为国际化，如果直接输入中文则会乱码。

setMainWindow(mainWindow);

Window mainWindow = new Window(messageSource.getMessage("main.window",null,Locale.CHINESE));//message为国际化，如果直接输入中文则会乱码。 setMainWindow(mainWindow);

还可以向主窗口添加多个子窗口如：

Window window=new Window(messageSource.getMessage("child.window.helloworld", null, Locale.CHINESE));

mainWindow.addWindow(window);

Window window=new Window(messageSource.getMessage("child.window.helloworld", null, Locale.CHINESE)); mainWindow.addWindow(window);

可以设置这个窗口的icon

mainWindow.setIcon(icon)//这里需要一个Resource对象来加载图片，Resource的子类中有一个FileResource他的构造需要两个参数，一个是File,一个Application这里如果本身就是在Application 内直接填入this即可如：

mainWindow.setIcon(new FileResource(new File(""),this));

是当前窗口显示后，背后的窗口变为不可使用。

window.setModal(true);

设置是否可以拖拉窗口大小

window.setResizable(false);

spring +vaadin spring ioc依赖注入

package com.xq.vaadin;

import javax.annotation.Resource;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ResourceBundleMessageSource;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;

import com.vaadin.Application;
import com.vaadin.terminal.gwt.server.AbstractApplicationServlet;
import com.vaadin.ui.Window;

@SuppressWarnings("serial")
public class SimpleAddressBook extends AbstractApplicationServlet {
private Class<? extends Application> clazz;
@Override
public void init(ServletConfig config) throws ServletException{
  super.init(config);
  WebApplicationContext wac = WebApplicationContextUtils.getRequiredWebApplicationContext(
  config.getServletContext());
  ResourceBundleMessageSource messageSource=(ResourceBundleMessageSource)wac.getBean(ResourceBundleMessageSource.class);
  System.out.println(messageSource);
  com.xq.controller.HelloWorld application = (com.xq.controller.HelloWorld) wac.getBean(com.xq.controller.HelloWorld.class);

  clazz = application.getClass();
}
@Override
protected com.xq.controller.HelloWorld getNewApplication(HttpServletRequest request)
   throws ServletException {
  // TODO Auto-generated method stub
  WebApplicationContext wac = WebApplicationContextUtils.getRequiredWebApplicationContext(request.getSession().getServletContext());
  return (com.xq.controller.HelloWorld) wac.getBean(com.xq.controller.HelloWorld.class);
}
@Override
protected Class<? extends Application> getApplicationClass()
   throws ClassNotFoundException {
  // TODO Auto-generated method stub
  return clazz;
}

}

WebApplicationContext wac = WebApplicationContextUtils.getRequiredWebApplicationContext(request.getSession().getServletContext());return (com.xq.controller.HelloWorld) wac.getBean(com.xq.controller.HelloWorld.class);

这个是通过类去找bean.

在web。xml中

    <servlet>
    <servlet-name>HelloWorde</servlet-name>
    <servlet-class>com.xq.vaadin.SimpleAddressBook</servlet-class>
    <init-param>
      <param-name>application</param-name>
      <param-value>com.xq.vaadin.HelloWorld</param-value>
    </init-param>
</servlet>
<servlet-mapping>
    <servlet-name>HelloWorde</servlet-name>
    <url-pattern>/VAADIN2/*</url-pattern>
</servlet-mapping>

spring 中国际化，还有vaadin的页面配置：

package com.xq.util;
import javax.servlet.ServletContext;

import org.springframework.context.ApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;

import com.vaadin.Application;
import com.vaadin.terminal.gwt.server.WebApplicationContext;
public class SpringContext {

private ApplicationContext context;

     public void SpringContextHelper(Application application) {
         ServletContext servletContext = ((WebApplicationContext) application.getContext()).getHttpSession().getServletContext();
         context = WebApplicationContextUtils.getRequiredWebApplicationContext(servletContext);
     }

     public Object getBean(final String beanRef) {
         return context.getBean(beanRef);
     }
     public Object getBean(final Class class1){
     return context.getBean(class1);
     }
}