Does spring mvc have response.write to output to the browser directly?

Question

I am using spring mvc with freetemplate.

In asp.net, you can write straight to the browser using Response.Write("hello, world");

Can you do this in spring mvc?

Answer 1

You can either:

• get the HttpServletResponse and print to its Writer or OutputStream (depending on whether you want to send textual or binary data)

  @RequestMapping(value = "/something")
  public void helloWorld(HttpServletResponse response)  {
    response.getWriter().println("Hello World")
  }
  

• Use @ResponseBody:

  @RequestMapping(value = "/something")
  @ResponseBody
  public String helloWorld()  {
    return "Hello World";
  }
  

Thus your Hello World text will be written to the response stream.

Answer 2

If you use an annotated controller (or non-annotated for that matter I believe...), you can use the method argument HttpServletResponse in your controller to get the output stream and then write to the screen - see http://download.oracle.com/docs/cd/E17410_01/javaee/6/api/javax/servlet/ServletResponse.html#getOutputStream%28%29

For more information about the parameters you can use in your controllers/handlers, see http://static.springsource.org/spring/docs/2.5.x/reference/mvc.html (section 13.11.4)