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1、gxt用boeder布局时,看不见界面时,可能是要用子控件要用fitlayout布局。

 


2、grid列自动缩放:            
    grid.setStripeRows (true); grid.setAutoExpandColumn ("info"); 
    grid.setAutoExpandMin (
80); 
    grid.getView ().setForceFit (
true); 

 

3、对于tab页面,要想grid列宽度自适应的话还要加一下条件:
    messagePanel.setLayoutData (new FitLayout()); 
    loggerTab 
= new TabItem ("系统日志");
    loggerTab.setLayoutData (
new FitLayout()); 
    loggerTab.setLayoutOnChange (
true); 
    loggerTab.add (getLoggerPanel ()); 
    messagePanel.add (loggerTab); 
         而且不能设置为自动宽度。

 

4、布局不起作用,可能是setLayout写成了setLayoutData;

 

5、gxt里面尽量用boederlayout布局,那样自适应较强;

 

6、所有远程对象继承下面类,可以和spring集成;
 1public abstract class BaseAction extends RemoteServiceServlet implements
 2        Controller, ServletContextAware, ServletConfigAware, BeanNameAware {
 3    private ServletContext servletContext;
 4    private String controllerName;
 5
 6    /** * Gets ServletContext. */
 7    @Override
 8    public ServletContext getServletContext() {
 9        return servletContext;
10    }

11
12    /* 
13     * * (non-Javadoc) * * @see *
14     * org.springframework.beans.factory.BeanNameAware#setBeanName (java.lang *
15     * .String)
16     */

17    @Override
18    public void setBeanName(String controllerName) {
19        this.controllerName = controllerName;
20    }

21
22    /** * Implementation of ServletContextAware. */
23    public void setServletContext(ServletContext servletContext) {
24        this.servletContext = servletContext;
25    }

26
27    public String getServletName() {
28        return "DispatcherServlet name is "
29                + this.servletConfig.getServletName()
30                + ", GwtController name is:" + controllerName;
31    }

32
33    private ServletConfig servletConfig;
34
35    @Override
36    public void setServletConfig(ServletConfig servletConfig) {
37        this.servletConfig = servletConfig;
38    }

39
40    /**
41     * * Handles request and delegates to GWT's *
42     * RemoteServiceServlet.doPost(request, response).
43     * */

44    public ModelAndView handleRequest(HttpServletRequest request,
45            HttpServletResponse response) throws Exception {
46        try {
47            doPost(request, response);
48            return null;
49        }
 catch (Exception e) {
50            return null;
51        }

52    }

53
54}

7、servlet里面推数据至gxt前台:
后台:
    
1RemoteEventServiceServlet ress = new RemoteEventServiceServlet () { }
2UploadEvent event = new UploadEvent (source);
3 ress.addEvent (UploadEvent.FILEREADING_SERVER_DOMAIN_MESSAGE, event); 
4

 RemoteEventServiceServlet ress = new RemoteEventServiceServlet () { }; UploadEvent event = new UploadEvent (source); ress.addEvent (UploadEvent.FILEREADING_SERVER_DOMAIN_MESSAGE, event);
前台:
 // 启动监听器
 1RemoteEventService theRemoteEventService = RemoteEventServiceFactory.getInstance ().getRemoteEventService (); 
 2    theRemoteEventService.addListener (UploadEvent.UPLOAD_SERVER_DOMAIN_INBOUND, 
 3            new RemoteEventListener () 
 4    
 5        public void apply (de.novanic.eventservice.client.event.Event anEvent)
 6        
 7            if (anEvent instanceof UploadEvent) 
 8            
 9                UploadEvent te = (UploadEvent) anEvent; 
10                sourceTemplate = te.getSource ();
11                fileText.setValue (te.getResultMessage ());
12                }
 
13            }
 
14    }
); 
posted on 2012-05-03 02:05 liuliang 阅读(876) 评论(0)  编辑  收藏 所属分类: Gxt

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