Spring MVC发布请求

发布表单时，应使用

@ModelAttribute

将您的代码更改为：

@RequestMapping("/property")@ResponseBodypublic String property(@ModelAttribute("userDto") UserDto userDto ) {    System.out.println(userDto.getUsername());    System.out.println(userDto.getPassword());    return "Hello";}

您的HTML / JSP可以是：

<form method="post" name="userDto" action="http://localhost:8080/home/property">    <input name="username"/>    <input name="password"/>    <input type="submit"/></form>