如何在彈簧中顯示從數據庫獲取的值<form:input>？

Question

我需要顯示從數據庫中提取的值，這些值是使用spring form：input標籤存儲在數組列表中的。但是我發現'value'屬性不被支持。請幫忙！

Answer 1

我想你會期待這樣的事情。

//假設你有你的類

public class Students{ 
     private String name; 
     private List<String> Departments; 
    /* getters/setters */ 
    } 

在HTML將是以下。

<form:input path="departments[0]" /> 
    <form:input path="departments[1]" /> 

有關點擊更多詳情http://www.javacodegeeks.com/2013/07/spring-mvc-form-handling-vol-5-select-option-options-tags.html

Answer 2

請首先檢索從DATEBASE列表中，並設置在控制器中的模型屬性列表中看到的例子設置

@Controller 
public class UserController { 

    @RequestMapping(method = RequestMethod.GET) 
    public String userHome(Model model, EventBean event, UserService userService,ImageBean image) 
    { 
     List<Event> events = userService.viewNews(); //retrieve the list from datebase 
       model.addAttribute("event", event); //add bean object 
     model.addAttribute("events", events); //add list in model attribute 
     return "home"; 
    } 
} 

你的jsp頁

<form:form modelAttribute="event"> <!--set the model attribute here --> 
     <form:input path="news" value="${events.get(0).news}" /> 
</form:form> 

Answer 3

這是我的代碼，請看看和s唉我可能是做錯了， JAVA

---

public ModelAndView userEditProfile(@ModelAttribute("userDetails") UserFormbean registration,BindingResult result,HttpServletRequest request){ 

     ModelAndView mav=null; 
     HttpSession httpSession=null; 
     List userProfileList=new ArrayList(); 
     httpSession=request.getSession(); 
     if (httpSession != null) { 
     UserFormbean formbean=(UserFormbean)httpSession.getAttribute("UserRegistrationFormBean"); 
    userProfileList= userRegistrationService.getUserProfileInfo(formbean); 
    mav=new ModelAndView("EditProfile"); 
    mav.addObject("userProfileInfoList", userProfileList); 


    } 
    return mav; 

    } 

JSP:: 
----- 
<c:if test="${not empty userProfileInfoList}"> 
<c:forEach var="temp" items="${userProfileInfoList}"> 



     <div> 
     <form:label path="userRegistration.email"><spring:message code="label.email"/></form:label> 
     <form:input path ="userRegistration.email" value="${temp.get(0).UserRegistration.email}"/> 
     <form:errors path="userRegistration.email"/> 
     </div> 

     <div> 
     <form:label path="userRegistration.firstName"><spring:message code="label.firstname"/></form:label> 
     <form:input path ="userRegistration.firstName" value="${temp.get(0).UserRegistration.firstName}"/> 
     <form:errors path="userRegistration.firstName"/> 
     </div> 


     <div> 
     <form:label path="userRegistration.lastName"><spring:message code="label.lastname"/></form:label> 
     <form:input path ="userRegistration.lastName" value="${temp.get(0).UserRegistration.lastName}"/> 
     <form:errors path="userRegistration.lastName"/> 
    </div> 


    </c:forEach> 
    </c:if>