嗨,在我的春季休眠注释应用程序中,我使用jsp作为视图。在jsp中,我正在从mysql数据库中将值加载到下拉列表中。但是我无法将所选值从jsp页面传输到控制器。我在mysql中有两个表employee表和team表。我想显示所选团队中的所有雇员。例如,如果我从下拉列表中选择team1,我想显示team1中的所有雇员。

我的用于将mysql数据库值加载到dropdownlist的jsp页面代码片段

 <form:form method="POST" action="Search.html">
  <table>
    <tr>
        <td>
                        <form:label path="teams.teamId" id="teams">Team Name</form:label>
                    </td>
                    <td>
                        <form:select path="teams.teamId" cssStyle="width: 150px;">
                            <option value="-1">Select a type</option>
                            <c:forEach items="${teamKey}" var="teams">
                            <option value="${teams.teamId}" >${teams.teamName}</option>

                            </c:forEach>

                             <tr>
                       <td colspan="2"><input type="submit"  value="submit">  </td>

</tr>

                        </form:select>
    </tr>
   </table>
</form:form>


在resourcedaoimpl中的休眠选择查询

 @Override
public void serchResources(int teamid) {
    // TODO Auto-generated method stub
    System.out.println("teamid is given----------  :"+teamid);
    sessionfactory.getCurrentSession().createQuery("FROM Resource WHERE teamId=" +teamid);


    System.out.println("After query  teamid is given--*************  :"+teamid);

}


监修班

@RequestMapping(value="/Search",method = RequestMethod.POST)
    public ModelAndView fromSearch(@ModelAttribute("command") Resource resource,BindingResult result){
        return new ModelAndView("redirect:/searchResult.html");
    }



@RequestMapping(value="/searchResult",method = RequestMethod.GET)
public ModelAndView searchResult(@ModelAttribute("command") Resource resource,BindingResult result){
    Map<String, Object> model = new HashMap<String, Object>();
    //to  print employee table
    model.put("resourcekey",resourceServices.listResources());
    //lists teams
    model.put("teamKey", addteamServices.listTeams());

    return new  ModelAndView("Search",model);
}


感谢您的任何建议。

最佳答案

您需要在表单标签中包含modelAttribute

<form:form method="POST" action="Search.html" modelAttribute="command" >


因此,当您尝试在控制器中获取它们时,将具有model属性的值

09-10 07:06
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