gwt2 | 易学教程

How to transfer a file From Client to Server in GWT using fileUpload

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问题 I have code to browse a file . i have to send the file to server side. I dont know how to pass file to Server Using RPC. formPanel.addFormHandler(new FormHandler() { public void onSubmitComplete(final FormSubmitCompleteEvent event) { // TODO Auto-generated method stub Window.alert(event.getResults()); } public void onSubmit(final FormSubmitEvent event) { // TODO Auto-generated method stub event.setCancelled(true); } }); formPanel.setMethod(FormPanel.METHOD_POST); formPanel.setEncoding

How to Upload a file using GWT

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问题 I am new to GWT. I am trying to Upload a file. I need the data and the name of the file on the server side. the file is doc type and can be of size more then 1 MB to 5MB. Plz suggest me How to do it. any sample code will be of great help. 回答1: There is a really nice little libary called GwT-UPLOAD: http://code.google.com/p/gwtupload/ There is a quick start guide here: http://code.google.com/p/gwtupload/wiki/GwtUpload_GettingStarted 来源： https://stackoverflow.com/questions/9616117/how-to-upload

Integrate Htmls into GWT

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问题 We have a web application that its UI is based on GWT. We are pretty satisfied from the technology, but we have one major problem: We get html files from our designer, and it takes a lot of time to integrate them into our GWT code. Is there a quick way or rules to do that? For instance, I would like to take the html, put it almost "as is" in a ui.xml file, and then start binding the components to UiBinder fields. What is the quickest way to do that? What should I do with the CSS and JS files

how to integrate or call or interface with a 3rd party widget within a GWT app?

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问题 I am making an app in GWT. It is like a dashboard and will have out of the widgets. Now when we ship this out, there is a use case that the customer might want to create their own GWT widget and use this in the dashboard app. As I understand it, they will not be able to do this since we cannot ship our source code which is needed to compile the whole app again once tag of their widget/module gets into the gwt.xml file of my app. I cannot use anything other that GWT to make this dashboard. And

Mnemonics in GWT

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问题 I would like to create as Java Swing Mnemonics with GWT . But I don't know how to figure it out. I have googled for it but I didn't fond any sample codes for it . I want to bind some keyboard shortcut keys on my buttons. How can I achieve it ? Any suggestions would be really appreciated ! 回答1: In general you can handle global keyboard shortcusts using a NativePreviewHandler. An example of this can you see here: NativePreviewHandler nativePreviewHandler = new NativePreviewHandler() { @Override

could not integrate GWT with Spring RestTemplate implementation

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问题 I'm a beginner in GWT. Currently I'm trying to create an Web application in Spring to consume data from REST and displays those details in GWT . So, I used Spring RestTemplate for client(to make a request and unmarshalling to java Object) and left the Dependency Injection to Spring(annotation). I have developed these entire thing in Eclipse IDE which has GWT-2.4 plugin. I have tried to start this Web Application in below Cases and facing the specified issues. Case #1: When i'm trying to start

GWT ValueChangeHandler and getting before value

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问题 I want to get values of my textBox before change its value and after changed its value. String beforeValue = ""; TextBox textBox = new TextBox(); textBox.addFocusHandler(new FocusHandler() { public void onFocus(final FocusEvent event) { beforeValue = textBox.getText(); } }); textBox.addValueChangeHandler(new ValueChangeHandler<String>() { public void onValueChange(final ValueChangeEvent<String> event) { System.out.println("Before value is " + beforeValue); System.out.println("After value is "

GWT: DockLayout Panel not showing

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问题 Expected output is the same as in the preview, with labels that indicate the specified blocks. I run this in standard mode and I am using GWT 2.1.1 Below is the expected output: Actual output: <html><head>      <meta content="text/html; charset=UTF-8" http-equiv=

Adding icons to an button in gwt

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问题 i have button and want to set an icon to it along with the text inside it. their is no property to add icon to button like in smartGwt .. any idea how to achieve it please help. 回答1: There are many ways of achieving this. Way 1 : Easy way Just set the background image via code. myButton.getElement().getStyle().setBackgroundImage("path"); Way 2: Another easy way Set your own html myButton.setHtml("Pass the html string"); Way 3: Easy but gives more control myButton.addStylename("buttonStyle")

Merge GWT generated files

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问题 I'm trying to create a JavaScript library from GWT. The big deal: I want to merge the JavaScript files into one. Basicly GWT generate two files: [Your_Project].nocache.js => The bootstrap [MD5].cache.html => The proper(?) JavaScript API. index.html--- load --->[Your_Project].nocache.js ---- load ---->[MD5].cache.html I'm trying to change that by: index.html --- load --->everything.js But how to merge [Your_Project].nocache.js and [MD5].cache.html into one JavaScript file...? I'm not sure it