Spring跨controller数据传输er

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PageController

@RequestMapping(value = "page.html")   public String page(HttpServletRequest request){       UserVo userVo = userDao.getUserById(1);       request.setAttribute("userVo", userVo);       return "page";   }

page.jsp

<form action="nextPage.html" method="post">    <input type="hidden" value="${userVo.getId()}" name="id">    <input type="hidden" value="${userVo.getUserName()}" name="userName">    <input type="hidden" value="${userVo.getUserId()}" name="userId">    <input type="submit" value="submit"></form>

NextPageController

@RequestMapping(value = "nextPage.html")public String createNewIncident(UserVo userVo){    System.out.println(userVo.getUserName());    return "nextPage";}

@RequestMapping(value = "page.html")   public String page(HttpServletRequest request){       UserVo userVo = userDao.getUserById(1);       request.setAttribute("userVo", userVo);       return "page";   }

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