如何通过单击html页面中的菜单从jsp调用java方法? [英] How to call a java method from jsp by clicking a menu in html page?

问题描述

我用 java 编写了一个服务器程序，但为了提供与 web 的接口，我想在单击某个菜单按钮时访问 jsp 中的 java 方法.我该怎么做?

I wrote a server program in java but in order to give an interface with web i want to access java method in jsp when certain menu button is clicked. How can i do this?

推荐答案

Using ajax (using jQuery.ajax，你可以向服务器发出请求，在你的情况下可能是一个 Servlet 它将调用你请求的服务器上的方法

Using ajax (using jQuery.ajax, you could make a request to server, In your case may be to a Servlet which will invoke method on server that you requested

例如:

function callMe(){
    $.ajax({
      type: "POST",
      url: "/someServlet",
      data: { methodToInvoke: "sayHello" , data: "Abc" }
    }).done(function( msg ) {
      alert( "Data Saved: " + msg );
    });
}

在 Servlet 结束

doPost(...){
 String methodToCall = request.getParameter("methodToCall");
 //do some stuff to determine method to call and call it like
 methodService.invoke(request.getParameter("data"));
}

另见

• DWR

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