sto ottenendo questo erroreNé BindingResult né oggetto di destinazione normale per il nome di fagioli disponibili come richiesta attributo - Spring MVC
java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'command' available as request attribute
Questa è l'analisi dello stack
org.apache.jasper.JasperException: java .lang.IllegalStateException: Né BindingResult né semplice oggetto di destinazione per il nome bean 'comando' disponibile come attributo di richiesta org.apache.jasper.servlet.JspServletWrapper.handleJspException (JspServletWrapper.java:534) org.apache.jasper.servlet.JspServletWrapper .Service (JspServletWrapper.jav a: 452) org.apache.jasper.servlet.JspServlet.serviceJspFile (JspServlet.java:389) org.apache.jasper.servlet.JspServlet.service (JspServlet.java:333) javax.servlet.http.HttpServlet .service (HttpServlet.java:722) cause java.lang.IllegalStateException: né BindingResult né oggetto target normale per nome bean 'comando' disponibile come richiesta attributo org.springframework.web.servlet.support.BindStatus . (BindStatus.java:141) org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getBindStatus (AbstractDataBoundFormElementTag.java:178) org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getPropertyPa esimo (AbstractDataBoundFormElementTag.java:198) org.springframework.web.servlet.tags.form.LabelTag.autogenerateFor (LabelTag.java:129) org.springframework.web.servlet.tags.form.LabelTag.resolveFor (LabelTag. java: 119) org.springframework.web.servset.tags.form.LabelTag.writeTagContent (LabelTag.java:89) org.springframework.web.servlet.tags.form.AbstractFormTag.doStartTagInternal (AbstractFormTag.java:102) org.springframework.web.servlet.tags.RequestContextAwareTag.doStartTag (RequestContextAwareTag.java:79) org.apache.jsp.student_jsp._jspx_meth_form_005flabel_005f0 (student_jsp.java:182) org.apache.jsp.student_jsp._jspx_meth_form_005fform_005f0 (student_jsp .java: 117) org.apache.jsp.student_jsp._jspService (student_jsp.java:79) org.apache.jasper.runtime.HttpJspBase.service (HttpJspBase.java:70) javax.servlet.http.HttpServlet.service (HttpServlet.java:722) org.apache.jasper.servlet.JspServletWrapper.service (JspServletWrapper .java: 419) org.apache.jasper.servlet.JspServlet.serviceJspFile (JspServlet.java:389) org.apache.jasper.servlet.JspServlet.service (JspServlet.java:333) javax.servlet.http. HttpServlet.service (HttpServlet.java:722)
Questo è il mio file web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>Spring MVC Form Handling</display-name>
<welcome-file-list>
<welcome-file>student.jsp</welcome-file>
</welcome-file-list>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>HelloWeb</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/HelloWeb-Servlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>HelloWeb</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
Questo è il mio file applicationContext.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
<context:component-scan base-package="com.Prime" />
<mvc:annotation-driven/>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/JSP/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
Questo è il mio file student.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%>
<html>
<head>
<title>Spring MVC Form Handling</title>
</head>
<body>
<h2>Student Information</h2>
<form:form modelAttribute="SpringWeb" method="POST" action="/HelloWeb/addStudent" commandName="SpringWeb">
<table>
<tr>
<td><form:label path="name">Name</form:label></td>
<td><form:input path="name" /></td>
</tr>
<tr>
<td><form:label path="age">Age</form:label></td>
<td><form:input path="age" /></td>
</tr>
<tr>
<td><form:label path="id">id</form:label></td>
<td><form:input path="id" /></td>
</tr>
<tr>
<td colspan="2">
<input type="submit" value="Submit"/>
</td>
</tr>
</table>
</form:form>
</body>
</html>
E questo è il mio StudentController.di file java
package com.Prime;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.ui.ModelMap;
@Controller
public class StudentController {
@RequestMapping(value = "/student", method = RequestMethod.GET)
public ModelAndView student() {
return new ModelAndView("/student.jsp", "SpringWeb", new Student());
}
@RequestMapping(value = "/addStudent", method = RequestMethod.POST)
public String addStudent(@ModelAttribute("SpringWeb")Student student,
ModelMap model) {
model.addAttribute("name", student.getName());
model.addAttribute("age", student.getAge());
model.addAttribute("id", student.getId());
return "result";
}
}
Qualcuno mi può aiutare con questo errore .... Grazie in anticipo
Lo stesso codice che sto usando ma l'errore non si sta risolvendo ... Sto anche ricevendo lo stesso errore. Qualcuno può aiutarmi con questo? – Brain