spring - bean 名称 'command' 的 BindingResult 和普通目标对象都不能用作请求属性-6ren

spring - bean 名称 'command' 的 BindingResult 和普通目标对象都不能用作请求属性

转载作者：行者123 更新时间：2023-12-04 13:09:30

这个问题在这里已经有了答案:

What causes "java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'command' available as request attribute"?

(6 个回答)

4年前关闭。

我已阅读有关此错误的信息，但我不知道为什么仍然不适合我。希望有人能告诉我这里的错误。

这是我的观点(usuarioNew.jsp):

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%>
<%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%>
<%@taglib uri="http://www.springframework.org/tags" prefix="spring"%>
<body>
    <script type="text/javascript"
        src="<c:url value="/resources/js/usuarios.js" />"></script>


    <table align="center" bgcolor="lightblue" border="1"
        bordercolor="#006699"
        style="border-collapse: collapse; height: 500px; width: 750px;">
        <tbody>
            <tr>
                <td align="center"><h3>Nuevo usuario</h3></td>
            </tr>
            <tr align="center" valign="top">
                <td align="center">
                    <form:form action="usuarios" commandname="usuarioNew" method="post">

                        <table border="0" bordercolor="#006699" cellpadding="2"
                            cellspacing="2" style="border-collapse: collapse; width: 500px;">
                            <tbody>
                                <tr>
                                    <td align="right" width="100">Login:</td>
                                    <td width="150"><form:input path="login"/></td>
                                    <td align="left"><form:errors cssStyle="color:red" path="login"></form:errors></td>
                                </tr>
                                <tr>
                                    <td align="right" width="100">Password:</td>
                                    <td><form:input path="password"/></td>
                                    <td align="left"><form:errors cssstyle="color:red" path="password"></form:errors></td>
                                </tr>
                                <tr>
                                    <td align="right" width="100">Correo:</td>
                                    <td><form:input path="correo"/></td>
                                    <td align="left"><form:errors cssstyle="color:red" path="correo"></form:errors></td>
                                </tr>
                                <tr>
                                    <td align="right" width="100">Status:</td>
                                    <td><form:select path="status">
                                            <form:option label="Activo" value="activo" />
                                            <form:option label="Inactivo" value="inactivo" />
                                        </form:select></td>
                                    <td align="left"><form:errors cssstyle="color:red" path="status"></form:errors></td>
                                </tr>

                                <tr>
                                    <td align="center" colspan="3">
                                        <input name="" type="submit" value="Save">    
                                        <input name="" type="reset" value="Reset">    
                                        <input onclick="javascript:go('${pageContext.servletContext.contextPath}/usuarios');"
                                            type="button" value="Back">
                                    </td>
                                </tr>
                            </tbody>
                        </table>
                    </form:form>
                </td>
            </tr>
        </tbody>
    </table>
</body>

我的 Controller :

@Controller
public class UsuarioController {

    @Autowired
    private UsuarioDAO usuarioDao;

    @Autowired
    private UsuarioFormValidator validator;

    @Autowired
    private MessageSource messages;

    @InitBinder
    public void initBinder(WebDataBinder binder) {
        SimpleDateFormat dateFormat = new SimpleDateFormat("dd-MM-yyyy");
        dateFormat.setLenient(false);
        binder.registerCustomEditor(Date.class, new CustomDateEditor(
                dateFormat, true));
    }


    @RequestMapping(value = "/usuarios/new", method = RequestMethod.GET)
    public ModelAndView executeNew() {
        ModelAndView mav = new ModelAndView("usuarioNew");
        Usuario usuario = new Usuario();
        mav.getModelMap().put("usuarioNew", usuario);
        return mav;
    }

    @RequestMapping(value = "/usuarios", method = RequestMethod.POST)
    public String executeCreate(@ModelAttribute("usuarioNew") Usuario usuario,
            BindingResult result, SessionStatus status) {
        validator.validate(usuario, result);
        if (result.hasErrors()) {
            return "usuarioNew";
        }
        usuarioDao.insert(usuario);
        status.setComplete();
        return "redirect:usuarioIndex";
    }


}

这是我的模型 Usuario:

@Entity
@Table(name = "usuario")
public class Usuario implements Serializable {

    @Id
    @Column(name = "_id")
    private String id;

    @Column(name = "login")
    private String login;

    @Column(name = "password")
    private String password;

    @Column(name = "correo")
    private String correo;

    @ManyToOne
    @JoinColumn(name = "idRol")
    private Rol rol;

    @Column(name = "token")
    private String token;

    @Column(name = "status")
    private String status;

    public Usuario() {

    }

//getters and setters

这是完整的堆栈跟踪:

SEVERE: Servlet.service() for servlet jsp threw exception
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:141)
    at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getBindStatus(AbstractDataBoundFormElementTag.java:179)
    at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getPropertyPath(AbstractDataBoundFormElementTag.java:199)
    at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getName(AbstractDataBoundFormElementTag.java:165)
    at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.autogenerateId(AbstractDataBoundFormElementTag.java:152)
    at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.resolveId(AbstractDataBoundFormElementTag.java:143)
    at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.writeDefaultAttributes(AbstractDataBoundFormElementTag.java:127)
    at org.springframework.web.servlet.tags.form.AbstractHtmlElementTag.writeDefaultAttributes(AbstractHtmlElementTag.java:421)
    at org.springframework.web.servlet.tags.form.InputTag.writeTagContent(InputTag.java:142)
    at org.springframework.web.servlet.tags.form.AbstractFormTag.doStartTagInternal(AbstractFormTag.java:103)
    at org.springframework.web.servlet.tags.RequestContextAwareTag.doStartTag(RequestContextAwareTag.java:80)
    at org.apache.jsp.view.usuarioNew_jsp._jspx_meth_form_005finput_005f0(usuarioNew_jsp.java:406)
    at org.apache.jsp.view.usuarioNew_jsp._jspService(usuarioNew_jsp.java:130)
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749)
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:487)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:412)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:339)
    at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:238)
    at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:263)
    at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1208)
    at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:992)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:939)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at com.opensymphony.sitemesh.webapp.SiteMeshFilter.obtainContent(SiteMeshFilter.java:129)
    at com.opensymphony.sitemesh.webapp.SiteMeshFilter.doFilter(SiteMeshFilter.java:77)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:368)
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:109)
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:97)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:100)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:78)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:35)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:177)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:187)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:79)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:169)
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(Abstracrocessor.process(AbstractHttp11Processor.java:1023)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:722)
tHttp11Processor.java:1023)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:722)

Sep 02, 2013 9:12:59 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [mvc-dispatcher] in context with path [/baseProject] threw exception [An exception occurred processing JSP page /view/usuarioNew.jsp at line 28

25:                             <tbody>
26:                                 <tr>
27:                                     <td align="right" width="100">Login:</td>
28:                                     <td width="150"><form:input path="login"/></td>
29:                                     <td align="left"><form:errors cssStyle="color:red" path="login"></form:errors></td>
30:                                 </tr>
31:                                 <tr>


Stacktrace:] with root cause
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:141)
    at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getBindStatus(AbstractDataBoundFormElementTag.java:179)
    at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getPropertyPath(AbstractDataBoundFormElementTag.java:199)
    at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getName(AbstractDataBoundFormElementTag.java:165)
    at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.autogenerateId(AbstractDataBoundFormElementTag.java:152)
    at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.resolveId(AbstractDataBoundFormElementTag.java:143)
    at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.writeDefaultAttributes(AbstractDataBoundFormElementTag.java:127)
    at org.springframework.web.servlet.tags.form.AbstractHtmlElementTag.writeDefaultAttributes(AbstractHtmlElementTag.java:421)
    at org.springframework.web.servlet.tags.form.InputTag.writeTagContent(InputTag.java:142)
    at org.springframework.web.servlet.tags.form.AbstractFormTag.doStartTagInternal(AbstractFormTag.java:103)
    at org.springframework.web.servlet.tags.RequestContextAwareTag.doStartTag(RequestContextAwareTag.java:80)
    at org.apache.jsp.view.usuarioNew_jsp._jspx_meth_form_005finput_005f0(usuarioNew_jsp.java:406)
    at org.apache.jsp.view.usuarioNew_jsp._jspService(usuarioNew_jsp.java:130)
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749)
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:487)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:412)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:339)
    at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:238)
    at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:263)
    at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1208)
    at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:992)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:939)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at com.opensymphony.sitemesh.webapp.SiteMeshFilter.obtainContent(SiteMeshFilter.java:129)
    at com.opensymphony.sitemesh.webapp.SiteMeshFilter.doFilter(SiteMeshFilter.java:77)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:368)
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:109)
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:97)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:100)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:78)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:35)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:177)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:187)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:79)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)
    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:169)
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:722)

正如您所看到的，在我看来，在表单的定义中我有: commandname="usuarioNew"至我在我的 Controller 中使用它。我不明白这一行抛出的异常:

 <td width="150"><form:input path="login"/></td>

如果我删除表单输入并只留下按钮提交、重置和返回，页面将被加载。否则，我得到异常。我读到这个异常是因为表单中的命令名而出现的，但我认为我正在正确使用它。

最佳答案

您正在使用 commandname而不是 commandName .你应该写

 <form:form action="usuarios" commandName="usuarioNew" method="post">

关于spring - bean 名称 'command' 的 BindingResult 和普通目标对象都不能用作请求属性，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/18582946/

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javascript - 在 javascript 中，这是一个有效的结构吗？ : document. 名称.名称.值？
这是表格: 关于javascript - 在 javascript 中，这是一个有效的结构吗？ : document. 名称.名称.值？，我们在Stack Overflow上找到一个类似的
asp.net-mvc - 给定 htmlHelper + Action 名称，如何找出 Controller 名称？
HtmlHelper.ActionLink(htmlhelper,string linktext,string action) 如何找出正确的路线？如果我有这个=> HtmlHelper.Actio
javascript - Angular Directive(指令) > 动态 Controller 名称 > 插值 Controller 名称
我需要一些有关如何将 Controller 定义传递给嵌套在 outer 指令中的 inner 指令的帮助。请参阅http://plnkr.co/edit/Om2vKdvEty9euGXJ5qan一个
algorithm - 排行榜的高效数据结构，即记录列表(名称、积分) - 高效搜索(名称)、搜索(排名)和更新(积分)
请提出一个数据结构来表示内存中的记录列表。每条记录由以下部分组成: 用户名积分排名(基于积分)- 可选字段- 可以存储在记录中或可以动态计算数据结构应该支持高效实现以下操作: Insert(re
apache-spark - Spark : Union can only be performed on tables with the compatible column types. 结构<名称，ID> != 结构
错误 : 联合只能在具有兼容列类型的表上执行。结构(层:字符串，skyward_number:字符串，skyward_points:字符串)<> 结构(skyward_number:字符串，层:字符
scala - 名称/惰性函数的重复参数
我想要一个包含可变数量函数的函数，但我希望在实际使用它们之前不要对它们求值。我可以使用 () => type 语法，但我更愿意使用 => type 语法，因为它似乎是为延迟评估而定制的。当我尝试这样
当前本地键盘映射的 Emacs 名称？
我正在编写一个 elisp 函数，它将给定键永久绑定(bind)到当前主要模式的键盘映射中的给定命令。例如， (define-key python-mode-map [C-f1] 'pytho
r - “名称”属性的长度必须与向量的长度相同
卡在R中的错误上。 Error in names(x) <- value : 'names' attribute must be the same length as the ve
python - 正则表达式从字符串中提取用户名/名称
我有字符串，其中包含名称，有时在字符串中包含用户名，后跟日期时间戳: GN1RLWFH0546-2020-04-10-18-09-52-563945.txt JOHN-DOE-2020-04-10-1
c# - 名称 `Array'在当前上下文中不存在
有人知道为什么我会收到此错误吗？这显示将我的项目升级到新版本的Unity3d之后。 Error CS0103: The name `Array' does not exist in the curre
Delphi:从数据集中读取列数+名称？
由于 Embarcadero 的 NNTP 服务器从昨天开始就停止响应，我想我可以在这里问:我使用非数据库感知网格，我需要循环遍历数据集以提取列数、它们的名称、数量行数以及每行中每个字段的值。我知道
android - 在根项目的gradle子项目中设置Android版本代码/名称
在构建Android应用程序的子项目中，我试图根据根build.gradle中的变量设置版本代码/名称。子项目build.gradle: apply plugin: 'com.android.app
javascript - 如何在不使用硬编码字符串的情况下传递javascript属性(名称)？
示例用例: 我有一个带有属性“myProperty”的对象，具有 getter 和 setter(自 EcmaScript 5 起支持“Property Getters 和 Setters”:http

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spring - bean 名称 'command' 的 BindingResult 和普通目标对象都不能用作请求属性