[英]how to implement JSNI in GWT
I have experience in GWT but know nothing about JSNI or Javascript . 我有GWT的经验,但对JSNI或Javascript一无所知。 i am searching for few days for JSNI now but i am not able to understand how to implement JSNI in my GWT project. 我现在正在为JSNI搜索几天,但我无法理解如何在我的GWT项目中实现JSNI。
where and how i will add a javascript file in my GWT project, where i will write my javascript? 我将在GWT项目中添加javascript文件的位置和方式,我将在哪里编写我的javascript?
and then i want to call a javascript method from java/GWT 然后我想从java / GWT调用一个javascript方法
Here is a simple example of how to code a JSNI method that puts up a JavaScript alert dialog: 这是一个简单的示例,说明如何编写一个JSNI方法来建立一个JavaScript警报对话框:
public static native void alert(String msg) /*-{
$wnd.alert(msg);
}-*/;
but where will i add this code in my GWT project 但是我将在GWT项目中添加此代码
i hvae just created a new project "HelloJSNI" and in my class HelloJSNI.java , i added this code , am i doing write ? 我刚刚创建了一个新项目“HelloJSNI”,在我的类HelloJSNI.java中,我添加了这个代码,我在写吗?
public void onModuleLoad() {
alert("call from java to Javascript");
}
public void testJSNI(int amt, float interestRate,
int term){
Window.alert("call from javascript to java");
}
public static native void alert(String msg) /*-{
// $wnd.alert(msg);
$wnd.testJSNI=
$entry(@com.jsni.client.HelloJSNI::testJSNI(IFI));
}-*/;
}
will i be able to see "hello JSNI "? 我能看到“你好JSNI”吗? Thanks 谢谢
The first and best place to learn about JSNI is this article . 这篇文章是了解JSNI的第一个也是最好的地方。
If you have any more specific questions after reading that article, please ask here on SO. 如果您在阅读该文章后有任何更具体的问题,请在此处询问。
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