处理器适配器

SimpleControllerHandlerAdapter

负责调用控制器controller 返回modelandview

<bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"/>

HttpRequestHandlerAdapte

负责调用实现HttpRequestHandler接口的控制器

<bean class="org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter"/>

public class AaaController implements HttpRequestHandler {
    @Override
    public void handleRequest(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) throws ServletException, IOException {
        httpServletRequest.setAttribute("name","张三");
        httpServletRequest.getRequestDispatcher("/WEB-INF/views/user/userList.jsp").forward(httpServletRequest,httpServletResponse);
    }

Command控制器

继承AbstractCommandController

编写User Bean

<form action="${pageContext.request.contextPath}/command.do" method="post">
    用户名:<input type="text" name="username"><br>
    密码:<input type="text" name="password"><br>
    性别:<input type="text" name="gender"><br>
    生日:<input type="text" name="birthday"><br>
    <input type="submit">
</form>

SpringMVC默认日期格式yyyy/MM//dd
添加其他格式 重写方法