SpringMVC的请求-获得请求参数-参数绑定注解@RequestParam

当请求的参数名称与Controller的业务方法参数名称不一致时，就需要通过@RequestParam注解显示的绑定

<form action="${pageContext.request.contextPath}/quick16" method="post"><input type="text" name="name"><br><input type="submit" value="提交"><br></form>

@RequestMapping(value="/quick16")@ResponseBodypublic void save16(@RequestParam(value="name",required = false,defaultValue = "leon") String username) throws IOException {System.out.println(username);}