無論是BindingResult還是bean名稱spring的普通目標對象mvc

我的小項目存在問題。無論是BindingResult還是bean名稱spring的普通目標對象mvc

這裏是我的CONTROLER

@Controller 
@RequestMapping("/loginPage") 
public class LoginController 
{ 
private static final String VN_LOGIN_FORM  = "login/LoginForm"; 
private static final String VN_HOME_FORM  = "redirect:../home.html"; 
String VN_LOGIN_FAIL_FROM = "redirect:../loginPage /login.html"; 

// @Autowired 
private AccountService  act; 

private EmployeeService  em; 

@RequestMapping(value = "login", method = RequestMethod.GET) 
public String getRegistrationForm(Model model) 
{ 
    model.addAttribute("user", new AccountForm()); 
    return VN_LOGIN_FORM; 
} 

@RequestMapping(value = "", method = RequestMethod.POST) 
public String postRegistrationForm(@ModelAttribute("user") AccountForm form) 
{ 
    Account temp = toAccount(form); 
    Account found = act.getAccount(temp.getUsername()); 
    java.util.List<Employee> list = em.getNewEmployees(); 

    if (found != null && found.getPassword().equals(temp.getPassword())) 
    { 
     return VN_HOME_FORM; 
    } 
    return VN_LOGIN_FAIL_FROM; 

} 

@InitBinder 
public void initBinder(WebDataBinder binder) 
{ 
    binder.setAllowedFields(new String[ ] { "username", "password", "confirmPassword", "firstName", "lastName", "email", 
      "marketingOk", "acceptTerms" }); 
} 

private static Account toAccount(AccountForm form) 
{ 
    Account account = new Account(); 
    account.setUsername(form.getUsername()); 
    account.setPassword(form.getPassword()); 
    return account; 
}

}

這是我的JPS頁面。

<form:form action="." modelAttribute="user" method="POST" 
    class="login"> 
    <form:errors path="*"> 
     <div class="warning alert"> 
      <spring:message code="error.global" /> 
     </div> 
    </form:errors> 
    <div> 
     <label for="username">${username}</label> 
     <form:input name="username" id="login" path="username" 
      cssErrorClass="short error" value="username" /> 
    </div> 
    <br> 
    <div> 
     <label for="password">${password}</label> 
     <form:password path="password" name="password" value="1111111111" /> 
    </div> 
    <div class="login-submit"> 
     <button type="submit" value="" class="login-button">Submit</button> 
    </div> 
    <br> 
    <div class="forgot-password"> 
     <button type="submit" class="btn-reset">Forgot your 
      password?</button> 
     <button type="submit" class="btn-reset">Reset</button> 
    </div> 
</form:form>

這裏是異常跟蹤：

09:31:49,069 ERROR [org.springframework.web.servlet.tags.form.InputTag] (http-localhost-127.0.0.1-8080-1) Neither BindingResult nor plain target object for bean name 'user' available as request attribute: java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'user' available as request attribute 
at org.springframework.web.servlet.support.BindStatus.<init>(BindStatus.java:141) [spring-webmvc-3.1.0.RELEASE.jar:3.1.0.RELEASE] 
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getBindStatus(AbstractDataBoundFormElementTag.java:178) [spring-webmvc-3.1.0.RELEASE.jar:3.1.0.RELEASE] 
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getPropertyPath(AbstractDataBoundFormElementTag.java:198) [spring-webmvc-3.1.0.RELEASE.jar:3.1.0.RELEASE] 
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getName(AbstractDataBoundFormElementTag.java:164) [spring-webmvc-3.1.0.RELEASE.jar:3.1.0.RELEASE] 
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.writeDefaultAttributes(AbstractDataBoundFormElementTag.java:127) [spring-webmvc-3.1.0.RELEASE.jar:3.1.0.RELEASE] 
at org.springframework.web.servlet.tags.form.AbstractHtmlElementTag.writeDefaultAttributes(AbstractHtmlElementTag.java:421) [spring-webmvc-3.1.0.RELEASE.jar:3.1.0.RELEASE] 
at org.springframework.web.servlet.tags.form.InputTag.writeTagContent(InputTag.java:142) [spring-webmvc-3.1.0.RELEASE.jar:3.1.0.RELEASE] 
at org.springframework.web.servlet.tags.form.AbstractFormTag.doStartTagInternal(AbstractFormTag.java:102) [spring-webmvc-3.1.0.RELEASE.jar:3.1.0.RELEASE] 
at org.springframework.web.servlet.tags.RequestContextAwareTag.doStartTag(RequestContextAwareTag.java:79) [spring-webmvc-3.1.0.RELEASE.jar:3.1.0.RELEASE] 
at org.apache.jsp.WEB_002dINF.views.login.LoginForm_jsp._jspx_meth_form_005finput_005f0(LoginForm_jsp.java:364) 
at org.apache.jsp.WEB_002dINF.views.login.LoginForm_jsp._jspService(LoginForm_jsp.java:174) 
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) [jbossweb-7.0.13.Final.jar:] 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final] 
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:369) [jbossweb-7.0.13.Final.jar:] 
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:326) [jbossweb-7.0.13.Final.jar:] 
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:253) [jbossweb-7.0.13.Final.jar:] 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final] 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.13.Final.jar:] 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:] 
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:840) [jbossweb-7.0.13.Final.jar:] 
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:622) [jbossweb-7.0.13.Final.jar:] 
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:560) [jbossweb-7.0.13.Final.jar:] 
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:488) [jbossweb-7.0.13.Final.jar:] 
at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:238) [spring-webmvc-3.1.0.RELEASE.jar:3.1.0.RELEASE] 
at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:262) [spring-webmvc-3.1.0.RELEASE.jar:3.1.0.RELEASE] 
at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1157) [spring-webmvc-3.1.0.RELEASE.jar:3.1.0.RELEASE] 
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:927) [spring-webmvc-3.1.0.RELEASE.jar:3.1.0.RELEASE] 
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:827) [spring-webmvc-3.1.0.RELEASE.jar:3.1.0.RELEASE] 
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882) [spring-webmvc-3.1.0.RELEASE.jar:3.1.0.RELEASE] 
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778) [spring-webmvc-3.1.0.RELEASE.jar:3.1.0.RELEASE] 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:734) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final] 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final] 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.13.Final.jar:] 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:] 
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.13.Final.jar:] 
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.13.Final.jar:] 
at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153) [jboss-as-web-7.1.1.Final.jar:7.1.1.Final] 
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.13.Final.jar:] 
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.13.Final.jar:] 
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.13.Final.jar:] 
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) [jbossweb-7.0.13.Final.jar:] 
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.13.Final.jar:] 
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671) [jbossweb-7.0.13.Final.jar:] 
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930) [jbossweb-7.0.13.Final.jar:] 
at java.lang.Thread.run(Thread.java:745) [rt.jar:1.7.0_71]

這裏是我的信息豆-web.xml中

<mvc:view-controller path="/loginPage/login.html" view-name="login/LoginForm" />

我如何訪問這些頁面：

http://localhost:8080/spring-mvc/loginPage/login.html

我不明白問題在哪裏。

來源

2015-04-03 Kamy Andrei

這可能是有用的，你 http://stackoverflow.com/questions/16787938/spring-mvc-neither-bindingresult-nor-plain-target-object-for-bean-name – 2015-04-03 06:43:15

可能重複http://stackoverflow.com/questions/29003809/java-lang-illegalstateexception-neither-bindingresult-nor-plain-target-object-f – OO7 2015-04-03 06:59:00

看起來您只在您的beans-web.xml中配置了<mvc:view-controller>。爲了讓彈簧注入用戶對象，還需要掃描控制器。在標籤下方需要註冊控制器和處理程序映射。如果您在OP中配置了下面的完整配置文件。

<mvc:annotation-driven/> 
<context:component-scan base-package="you controller package goes here" />

如果您的調度員的servlet設置來處理*。html的，那麼你不需要<mvc:view-controller>。簡單地通過控制器應該可以解決你的問題。

來源

2015-04-03 15:28:18 minion

無論是BindingResult還是bean名稱spring的普通目標對象mvc

回答

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