HTTP狀態500 - 請求處理失敗;嵌套異常

-4

Controller: 
    @RequestMapping(value="/balance.html",method=RequestMethod.GET) 
     public ModelAndView balance_navigation(@ModelAttribute("command") NetBean netBean,BindingResult result){ 
      System.out.println("controller balance"); 
      //int bal= netservice.displaybalance(cid); 
      Map<String, Object> model = new HashMap<String, Object>(); 
      System.out.println("controller Map object balance"); 
      model.put("balance", netservice.displaybalance(cid)); 
      System.out.println("controller put() balance"); 
      return new ModelAndView("balance", model); 
Dao: 
`@Override 
    public int displaybalance(int cid) { 
    Session session=sessionFactory.openSession(); 
    System.out.println("query before executed in balance"); 
    Query query=session.createQuery("select accbal from Account as se where se.cid=cid"); 
    ////select ACCBAL from Account a join Customer s on a.cid=s.cid where s.cid=cid 
    System.out.println("query executed in balance"); 
    query.setParameter(0,cid); 
    return (int) query.list().get(0);`

** org.springframework.web.bind.annotation.support.HandlerMethodInvocationException：未能調用處理程序方法[公共org.springframework.web.servlet.ModelAndView com.controller.Netcontroller.balance_navigation（com.bean .NetBean，org.springframework.validation.BindingResult）];嵌套的例外是java.lang.IllegalStateException：節點無數據類型：org.hibernate.hql.ast.tree.IdentNodeHTTP狀態500 - 請求處理失敗;嵌套異常

來源

2017-06-21 yaswanthkumar

你應該發佈一個更清晰的例子。您的代碼段似乎沒有使用任何Hibernate會話，也不涉及您在標題中提到的400錯誤。請參閱[MVCE]（https://stackoverflow.com/help/mcve）尋求幫助。 – alexanderific

請添加更多的代碼，所有你有依賴會話和URL映射 – Hema

取代你的@ModelAttribute（「命令」），以@ModelAttribute（」 netBean「）同樣的事情jsp也ModelAttribute =」netBean「

來源

2017-06-22 07:24:50

任何人都可以有springhibernate mvc anootation based sessionmangement類型eamle請幫助我 – yaswanthkumar

HTTP狀態500 - 請求處理失敗;嵌套異常

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