GWT simple web form submit - redirect to new page

2020-07-20 02:11发布

I have a simple web form written in Google web toolkit. I want the user to follow a new URL when he clicks on the submit button. However I cannot find any examples of redirecting the user to a new URL from within GWT code. How may I achieve this?

标签: java gwt
4条回答
神经病院院长
2楼-- · 2020-07-20 02:30

You can have a look at example at roughain http://examples.roughian.com/index.htm#Panels~FormPanel

Also you can read javadoc @http://google-web-toolkit.googlecode.com/svn/javadoc/1.6/com/google/gwt/user/client/ui/FormPanel.html

To make user go to a url use setAction method of FormPanel

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太酷不给撩
3楼-- · 2020-07-20 02:35

So actually what you need to do is to use the setAction() method of the FormPanel AND you need to construct the form panel as such:

FormPanel form = new FormPanel(new NamedFrame("_self"));

This will make the submit redirect as usual.

Hope this helps.

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在下西门庆
4楼-- · 2020-07-20 02:36

the exact answer is:

    form.getElement().<FormElement>cast().setTarget("");

by this line you changing the target parameter of the form and now the main page redirected to the action url.

be careful that Window.Location.assign() makes a new GET request after your main POST request!, So it is not the answer.

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地球回转人心会变
5楼-- · 2020-07-20 02:37

To redirect the user to a new page, use Window.Location.assign().

To have this happen when the user submits the form, use FormPanel.addSubmitHandler() , or addSubmitCompleteHandler() to have the redirect happen when the form submission is complete.

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