springmvc中使用servletAPI中的httprequest和response

1  发布一个接口   在方法参数中传入servlet相关的HttpServletRequest ...就可以在控制器中使用request对象。 这只是简单的测试helloword级别的不包含任何业务逻辑

@Controller
@RequestMapping("/ServiceAPIService")
public class ServiceAPIService {
    
    public final static String SUCCEEDD="show";
    
    
    @RequestMapping(value="/testServlet",method=RequestMethod.GET)
    public String testServlet(HttpServletRequest request,HttpServletResponse response){
        
        System.out.println("testServlet...........request="+request+" ,response="+response);
        String url=request.getRequestURL().toString();
        System.out.println(url);
    
        return SUCCEEDD;
    }
    
}

2   测试  访问http://localhost:8080/springmvc/ServiceAPIService/testServlet

  可以看到request对象已经获取到正确的url

使用 Writer响应给客户端一个消息 hello word

    @RequestMapping(value="/testServletWrite",method=RequestMethod.GET)
    public void testServletWrite(HttpServletRequest request,HttpServletResponse response,Writer out) throws IOException{
        
        System.out.println("testServlet...........request="+request+" ,response="+response+"Writer="+out);
        String url=request.getRequestURL().toString();
        System.out.println(url);
        //响应给客户端的消息
        out.write("hello word");
    }
    

测试Writer

浏览器测试

页面上打印出 helloword