Json @restcontroller和@responsebody在Spring MVC+；百里香

在配置为使用Thymeleaf 2.1.4的SpringMVC4.1.5应用程序中（在使用JSP之前，它工作正常），我无法返回JSON响应

无论我的请求映射是否在@RestController中，或者是否用@responsebody注释，它都会返回一个完整的HTML页面

这是控制器 在@controller类中，我有以下映射

@RequestMapping(value = { "/", "/land", "/login" }, method = RequestMethod.GET)
public String getLogin(Model model, HttpSession session) {
    session.setAttribute("login", "none");
    System.out.println(programId);
    model.addAttribute("signUpForm", new SignUpForm());
    return "login";
}

在@RestController类中，下面是相同URL的post方法

    @RequestMapping(value = {"/login" }, method = RequestMethod.POST )
public @ResponseBody HashMap<String, Object> login2(@RequestBody SignUpForm signUpForm,  HttpServletRequest request,
        HttpServletResponse httpServletResponse, HashMap<String, Object> mo, HttpSession session ) {

    User user = userDao.findUserByName(signUpForm.getUserName());

    if (user != null && encoder.matches(signUpForm.getPassword(), user.getPassword())&& user.getProgram_id()==3) {/* && user.getProgram_id()==3*/
        session.setMaxInactiveInterval(1200);
        System.out.println(session.getMaxInactiveInterval()+":"+session.getLastAccessedTime()+":"+session.getCreationTime()+":"+session.getServletContext().getContextPath());
        session.setAttribute("login", "success");
        mo.put("redirect", "/home");
        String ipAddress = request.getHeader("X-FORWARDED-FOR");
        if (ipAddress == null) {
            ipAddress = request.getRemoteAddr();
        }
        session.setAttribute("urip", ipAddress);

        return mo;
    } else {
        mo.put("error", "Login failed. Please check your credentials");

        return mo;
    }
}

---

嗯。这是我想出来的使它工作，但我仍然不确定的原因

public @ResponseBody HashMap<String, Object> login2(@RequestBody SignUpForm signUpForm,  HttpServletRequest request,
    HttpServletResponse httpServletResponse, HashMap<String, Object> mo, HttpSession session ){
////
}

public@ResponseBody HashMap login2（@RequestBody-SignUpForm-SignUpForm，HttpServletRequest-request，
HttpServletResponse HttpServletResponse，HashMap mo，HttpSession会话）{
////
}

在上面的方法签名中，我“注入”了一个hashmap。spring框架默认值或某个未知配置决定注入一个“绑定结果感知Hashmap”。但为了修复它，我不得不做一个

HashMap<String, Object> mo=new HashMap<String, Object>;

HashMap mo=新的HashMap；

在方法体内部，删除注入的hashmap。 如果有人能够理解这种行为，请解释。我觉得在我对spring框架的认识中遗漏了一些基本的东西

public @ResponseBody HashMap<String, Object> login2(@RequestBody SignUpForm signUpForm,  HttpServletRequest request,
    HttpServletResponse httpServletResponse, HashMap<String, Object> mo, HttpSession session ){
////
}

HashMap<String, Object> mo=new HashMap<String, Object>;