Basics of dojo (3) Sending data to the server_dojo

There are two ways to send data to the server: get and post.

First, replace the html code in the body with

<pre class="brush:php;toolbar:false">  <button dojoType="Button" widgetId="helloButton">Hello World!</button><br>  <br><br>  请输入名称: <input type="text" id="name">

1. get
   We only need to change:
   

   <pre class="brush:php;toolbar:false">   function helloPressed()<br>   {<br>    dojo.io.bind({<br>            url: 'response.txt',<br>            handler: helloCallback<br>          });<br>   }<br>替换为:<br><pre class="brush:php;toolbar:false">   function helloPressed()<br>   {<br>    dojo.io.bind({<br>            url: 'HelloWorldResponseGET.jsp',<br>            handler: helloCallback,<br>            content: {name: dojo.byId('name').value }<br>          });<br>   }

   Copy after login
   in the basic part (2). Needless to say, you can understand the url in it. It is a relative path. That is to say, in the current location of HelloWorld.html There should be a HelloWorldResponseGET.jsp file under the directory
   . The handler is still the same, processing the returned data,
   if any.
   content is the data to be sent. The name is name, and the value of name is The value you entered.
   
   In this way, we can write simple code in jsp to obtain this value. The following is the code in jsp
   
   

   <%<BR> /*<BR> ' HelloWorldResponseGET.jsp<BR> ' --------<BR> '<BR> ' 打印name的值.<BR> '<BR> */<br><br> response.setContentType("text/plain");<BR>%>

   Copy after login

   Hello <%= request.getParameter("name") %> ,欢迎来到dojo世界!

   Copy after login
2. Post
   This method is to submit the data in the form. The corresponding html code of
   
   is:
   

   <pre class="brush:php;toolbar:false">  <button dojoType="Button" widgetId="helloButton">Hello World!</button><br>  <br><br>  <form id="myForm" method="POST"><br>   请输入名称: <input type="text" name="name"><br>  </form>

   Copy after login
   dojo code is:
   

   <pre class="brush:php;toolbar:false">   function helloPressed()<br>   {<br>    dojo.io.bind({<br>            url: 'HelloWorldResponsePOST.jsp',<br>            handler: helloCallback,<br>            formNode: dojo.byId('myForm')<br>          });<br><br>   }

   Copy after login
   Here the content attribute is changed to the formNode attribute.
   
   The jsp code remains unchanged.

http://dojo.jot.com/WikiHome/Tutorials/HelloWorld