Wie kann man mehrere Modellelemente in Federform einbeziehen?

Question

Hi Ich erstelle zwei separate Bean für ein UserVO zum Speichern von userId und userPassword.And Second Bean CompanyVO zum Speichern der restlichen Details. Ich benutze Federform. Ich möchte sowohl BenutzerVO und als auch FirmaVO in Frühlingsform einschließen.

Hier ist mein Code

CompanyVO

public class CompanyVO {  
    private long companyId; 
    private String comapanyName; 
    private String companySize; 
    private String compnayDescription; 
    private String foundedYear; 
    private String websiteURL; 
} 

uservo

public class UserVO { 
    private long userId; 
    private String emailId; 
    private String userPassword; 
    private long isActive; 
} 

ich ModelMap in meinem Controller verwendet haben, um beide uservo und CompanyVO zu umfassen.

-Controller

@RequestMapping("/registerCompanyForm") 
public ModelAndView registerCompanyForm(ModelMap modelMap){ 
    ModelAndView modelAndView=new ModelAndView(); 
    modelMap.addAttribute("companyVO",new CompanyVO()); 
    modelMap.addAttribute("userVO",new UserVO()); 
    modelAndView.addAllObjects(modelMap); 
    modelAndView.setViewName("register"); 
    return modelAndView; 
} 

register.jsp

<form:form action="/JobPortal/addCompany" method="post" modelAttribute="companyVO"> 
    <div class="formrow"> 
     <form:input path="${companyVO.comapanyName}" id="comapanyName" class="form-control" 
        placeholder="Enter Company Name"/> 
    </div> 
    <div class="formrow"> 
     <form:textarea path="${companyVO.compnayDescription}" rows="5" cols="30" class="form-control" 
         placeholder="Enter Company Description"/> 
    </div> 
    <div class="formrow"> 
     <form:select path="${companyVO.companySize}" class="form-control"> 
      <form:option value="">Select Company Size</form:option> 
      <form:option value="0-50">0-50</form:option> 
      <form:option value="0-50">51-200</form:option> 
      <form:option value="200+">200+</form:option> 
     </form:select> 
    </div> 
    <div class="formrow"> 
     <form:input path="${companyVO.websiteURL}" class="form-control" placeholder="Enter company website URL"/> 
    </div> 
    <div class="formrow"> 
     <form:select path="${companyVO.foundedYear}" class="form-control"> 
      <form:option value="">Select Foundation Year</form:option> 
      <form:option value="2016">2016</form:option> 
     </form:select> 
    </div> 
    <div class="formrow"> 
     <form:input path="${userVO.emailId}" class="form-control" placeholder="Email"/> 
    </div> 
    <div class="formrow"> 
     <form:input path="${userVO.userPassword}" class="form-control" placeholder="Enter Your Password"/> 
    </div> 
    <div class="formrow"> 
     <input type="text" name="cpass" class="form-control" placeholder="Confirm Password"> 
    </div> 
    <div class="formrow"> 
     <input type="checkbox" value="agree text c" name="cagree"/> 
     There are many variations of passages of Lorem Ipsum available 
    </div> 
    <input type="submit" class="btn" value="Register"> 
</form:form> 

Ich erhalte Fehler folgende

java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'command' available as request attribute 
at org.springframework.web.servlet.support.BindStatus.<init>(BindStatus.java:144) 
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getBindStatus(AbstractDataBoundFormElementTag.java:168) 
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getPropertyPath(AbstractDataBoundFormElementTag.java:188) 
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getName(AbstractDataBoundFormElementTag.java:154) 
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.writeDefaultAttributes(AbstractDataBoundFormElementTag.java:117) 
at org.springframework.web.servlet.tags.form.AbstractHtmlElementTag.writeDefaultAttributes(AbstractHtmlElementTag.java:422) 
at org.springframework.web.servlet.tags.form.InputTag.writeTagContent(InputTag.java:142) 
at org.springframework.web.servlet.tags.form.AbstractFormTag.doStartTagInternal(AbstractFormTag.java:84) 
at org.springframework.web.servlet.tags.RequestContextAwareTag.doStartTag(RequestContextAwareTag.java:80) 
at org.apache.jsp.WEB_002dINF.views.register_jsp._jspx_meth_form_005finput_005f0(register_jsp.java:913) 
at org.apache.jsp.WEB_002dINF.views.register_jsp._jspService(register_jsp.java:287) 
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) 

Feb 11, 2017 7:11:32 PM org.apache.catalina.core.StandardWrapperValve invoke 
SEVERE: Servlet.service() for servlet [dispatcher] in context with path  [/JobPortal] threw exception [An exception occurred processing JSP page /WEB-INF/views/register.jsp at line 72 

69:    <c:out value="${companyVO.comapanyName}"></c:out> 
      <form:form action="/JobPortal/addCompany" method="post" > 
      <div class="formrow"> 
72   <form:input path="${companyVO.comapanyName}"  id="comapanyName" class="form-control" placeholder="Enter Company Name"/> 
      </div> 
      <div class="formrow"> 
     <form:textarea path="${companyVO.compnayDescription}" rows="5" cols="30" class="form-control" placeholder="Enter Company Description"/> 

Answer 1

eine neue Klasse erstellen RegisterCmd

public class RegisterCmd { 
    private UserVO userVO; 
    private CompanyVO companyVO; 

    public UserVO getUserVO() { 
     return userVO; 
    } 

    public void setUserVO(UserVO userVO) { 
     this.userVO = userVO; 
    } 

    public CompanyVO getCompanyVO() { 
     return companyVO; 
    } 

    public void setCompanyVO(CompanyVO companyVO) { 
     this.companyVO = companyVO; 
    } 
} 

dem Controller ändern:

@RequestMapping("/registerCompanyForm") 
public ModelAndView registerCompanyForm(ModelMap modelMap){ 
    ModelAndView modelAndView=new ModelAndView(); 
    RegisterCmd registerCmd = new RegisterCmd(); 
    modelMap.addAttribute("registerCmd", registerCmd); 
    modelAndView.addAllObjects(modelMap); 
    modelAndView.setViewName("register"); 
    return modelAndView; 
} 

Und schließlich Ihre Form ändern:

<form:form action="/JobPortal/addCompany" method="post" commandName="registerCmd"> 
    <div class="formrow"> 
     <form:input path="companyVO.comapanyName" id="comapanyName" class="form-control" 
        placeholder="Enter Company Name"/> 
    </div> 
    <div class="formrow"> 
     <form:textarea path="companyVO.compnayDescription" rows="5" cols="30" class="form-control" 
         placeholder="Enter Company Description"/> 
    </div> 
    <div class="formrow"> 
     <form:select path="companyVO.companySize" class="form-control"> 
      <form:option value="">Select Company Size</form:option> 
      <form:option value="0-50">0-50</form:option> 
      <form:option value="0-50">51-200</form:option> 
      <form:option value="200+">200+</form:option> 
     </form:select> 
    </div> 
    <div class="formrow"> 
     <form:input path="companyVO.websiteURL" class="form-control" placeholder="Enter company website URL"/> 
    </div> 
    <div class="formrow"> 
     <form:select path="companyVO.foundedYear" class="form-control"> 
      <form:option value="">Select Foundation Year</form:option> 
      <form:option value="2016">2016</form:option> 
     </form:select> 
    </div> 
    <div class="formrow"> 
     <form:input path="userVO.emailId" class="form-control" placeholder="Email"/> 
    </div> 
    <div class="formrow"> 
     <form:input path="userVO.userPassword" class="form-control" placeholder="Enter Your Password"/> 
    </div> 
    <div class="formrow"> 
     <input type="text" name="cpass" class="form-control" placeholder="Confirm Password"> 
    </div> 
    <div class="formrow"> 
     <input type="checkbox" value="agree text c" name="cagree"/> 
     There are many variations of passages of Lorem Ipsum available 
    </div> 
    <input type="submit" class="btn" value="Register"> 
</form:form>