Call Java Function using JSNI from servlet
I have created JSNI methods i am registering 'createCallbackFunction' method from another method using
createCallbackFunction(new NTFileUploadUtil());
public void uploadComplete(String fileId){
SC.say("I am back...with fileId:" + fileId);
System.out.println("I am back...with fileId: " + fileId);
}
private native static void createCallbackFunction(NTFileUploadUtil obj ) /*-{
//$wnd.alert(fileName);
var tmpcallback = f开发者_运维问答unction(fileName){
obj.@com.nextenders.client.ui.util.NTFileUploadUtil::uploadComplete(Ljava/lang/String;)( fileName);
};
alert("NTFileUploadUtil-- createCallbackFunction:\n " + tmpcallback);
$wnd.uploadComplete=tmpcallback;
}-*/;
I am getting
function (fileName) {
__gwt_makeJavaInvoke(1)(obj, 83361821, fileName);
}
in alert as output .
I am trying to call this from a struts action class
response.setContentType("text/html");
out.println("<html>");
out.println("<head>");
out.println("<script type=\"text/javascript\">");
out.println("function foo() { ");
out.println("alert('From Servlet');");
out.println("window.top.uploadComplete('"+ft.getId()+"');");
out.println("}");
out.println("</script>");
out.println("</head>");
out.println("<body onload=\"foo();\">");
out.println("</body>");
out.println("</html>");
But Javascript is not getting executed. Neither alert is working nor upload method is getting called.
PrintWriter out;
out = response.getWriter();
response.setContentType("text/html");
out.println("<html>");
out.println("<head>");
out.println("<script type=\"text/javascript\">");
out.println("function foo() { ");
//out.println("alert('From Servlet');");
out.println("window.top.uploadComplete('"+transId+"');");
out.println("}");
out.println("</script>");
out.println("</head>");
out.println("<body onload=\"foo();\">");
out.println("</body>");
out.println("</html>");
加载中,请稍侯......
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