获取不到参数，参数没传过来，什么问题？？

难道 Restlet client 这个插件需要什么配置，才能传参成功的吗？

UserController.java

package com.mall.controller.protal;

import com.mall.common.Const;
import com.mall.common.ResponseCode;
import com.mall.common.ServerResponse;
import com.mall.pojo.User;
import com.mall.service.IUserService;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.http.HttpSession;

@Controller
@RequestMapping("/user/")
public class UserController {
    private IUserService iUserService;

    /**
     * 用户登录
     * @param username
     * @param password
     * @param session
     * @return
     * 如果登录成功存进session里面
     */
    @RequestMapping(value="login.do", method = RequestMethod.POST)
    @ResponseBody
    public ServerResponse<User> login(String username,String password, HttpSession session){
        ServerResponse<User> response = iUserService.login(username, password);
        System.out.println("------Controller返回username=---------"+username);
        if(response.isSuccess()){
            session.setAttribute(Const.CURRENT_USER,response.getData());
        }
        return response;
    }

    /**
     * 退出登录
     * @param session
     * @return
     */
    @RequestMapping(value="logout.do", method = RequestMethod.POST)
    @ResponseBody
    public ServerResponse<User> logout(HttpSession session){
        session.removeAttribute(Const.CURRENT_USER);
        return ServerResponse.createBySuccess();
    }

    /**
     * 用户注册
     * @param user
     * @return
     */
    @RequestMapping(value="register.do", method = RequestMethod.POST)
    @ResponseBody
    public ServerResponse<String> register(User user){
        return iUserService.register(user);
    }
    //校验用户名和email是否存在
    @RequestMapping(value="check_valid.do", method = RequestMethod.POST)
    @ResponseBody
    public ServerResponse<String> checkValid(String str , String type){
        return iUserService.checkValid(str,type);
    }

    //获取用户登录信息
    @RequestMapping(value="get_user_info.do", method = RequestMethod.POST)
    @ResponseBody
    public ServerResponse<User> getUserInfo(HttpSession session){
        User user = (User) session.getAttribute(Const.CURRENT_USER);
        if(user != null){
            return ServerResponse.createBySuccess(user);
        }
        return ServerResponse.createByErrorMessage("用户未登录，无法获取用户信息！");
    }


}