Problème affichage avec select option
bonjour
j' ai un problème pour affiche le catégorie dans une liste de roulante merci
pour votre aide
voici le message d' erreur
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java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'category' 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:178)
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getPropertyPath(AbstractDataBoundFormElementTag.java:198)
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getName(AbstractDataBoundFormElementTag.java:164)
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.autogenerateId(AbstractDataBoundFormElementTag.java:151)
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.resolveId(AbstractDataBoundFormElementTag.java:142)
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.writeDefaultAttributes(AbstractDataBoundFormElementTag.java:126)
at org.springframework.web.servlet.tags.form.AbstractHtmlElementTag.writeDefaultAttributes(AbstractHtmlElementTag.java:421)
at org.springframework.web.servlet.tags.form.SelectTag.writeTagContent(SelectTag.java:199)
at org.springframework.web.servlet.tags.form.AbstractFormTag.doStartTagInternal(AbstractFormTag.java:102)
at org.springframework.web.servlet.tags.RequestContextAwareTag.doStartTag(RequestContextAwareTag.java:79)
at org.apache.jsp.WEB_002dINF.views.categorylist_jsp._jspService(categorylist_jsp.java:137)
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:262)
at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1180)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:950)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
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.springframework.orm.jpa.support.OpenEntityManagerInViewFilter.doFilterInternal(OpenEntityManagerInViewFilter.java:147)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
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:472)
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(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
nov. 09, 2013 2:20:18 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [dispatcher] in context with path [] threw exception [An exception occurred processing JSP page /WEB-INF/views/categorylist.jsp at line 29
26: <tr>
27: <td> Category:</td>
28: <td>
29: <form:select path="name">
30: <c:forEach var="category" items="${categoryList}">
31: <form:option value="${category.id}">${category.name}</form:option>
32: </c:forEach>
Stacktrace:] with root cause
java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'category' available as request attribute
at org.springframework.web.servlet.support.BindStatus.<init>(BindStatus.java:141) |
voici le fichier jsp
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<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1" %>
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%>
<%@ taglib uri='http://java.sun.com/jsp/jstl/core' prefix='c'%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
<title>Insert title here</title>
</head>
<body>
<c:choose>
<c:when test="${category.id==null}">
Création
</c:when>
<c:otherwise>
<title>Edit Category:${category.name}</title>
</c:otherwise>
</c:choose>
<form:form commandName="category" method="post" action='<%=response.encodeUrl("/category/categorylist")%>'>
<fieldset>
<table>
<tr>
<td> Category:</td>
<td>
<form:select path="name">
<c:forEach var="category" items="${categoryList}">
<form:option value="${category.id}">${category.name}</form:option>
</c:forEach>
</form:select>
</td>
</tr>
<tr>
<td><input type="submit" value="<c:choose><c:when test="${category.id==null}">Add </c:when><c:otherwise>Edit Category</c:otherwise></c:choose>"/></td>
</tr>
</table>
</fieldset>
<a href="<c:url value='/'/>">home page</a><br/>
</form:form>
</body>
</html> |
voici le contrôleur
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package com.bbstore.controller;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import com.bbstore.model.Category;
import com.bbstore.repository.CategoryRepository;
@Controller
public class CategoryListController {
@Autowired
CategoryRepository categoryRepository;
@RequestMapping("/categorylist")
public ModelAndView categoryList() {
ModelAndView mv = new ModelAndView("categorylist");
List<Category> list = categoryRepository.findAll();
mv.addObject("categoryList", list);
return mv;
}
} |
voici la classe category
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package com.bbstore.model;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.OneToMany;
import javax.persistence.OrderBy;
@Entity
public class Category implements Serializable {
/**
*/
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long Id;
private String name;
private String description;
@OneToMany(mappedBy = "category",fetch = FetchType.LAZY)
private List<Product> product = new ArrayList<Product>();
public Category() {
super();
}
public Category(String name, String description, List<Product> product) {
super();
this.name = name;
this.description = description;
this.product = product;
}
public Long getId() {
return Id;
}
public void setId(Long id) {
Id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public List<Product> getProduct() {
return product;
}
public void setProduct(List<Product> product) {
this.product = product;
}
} |
for servlet [dispatcher] in context with path [] threw exception [An exception occurred processing JSP page /W
Citation:
Envoyé par
andry.aime
Bonjour,
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| <c:forEach var="category" items="${categoryList}">
<c:choose>
<c:when test="${category.id==null}">
Création
</c:when>
<c:otherwise>
<title>Edit Category:${category.name}</title>
</c:otherwise>
</c:choose>
</forEach> |
A+.
merci pour ton aide mais le problème viens pas de là
voici le message d 'erreur
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org.apache.jasper.JasperException: An exception occurred processing JSP page /WEB-INF/views/categorylist.jsp at line 22
19: <tr>
20: <td> Category:</td>
21: <td>
22: <form:select path="category.name">
23: <c:forEach var="category" items="${categoryList}">
24: <form:option value="${category.id}">${category.name}</form:option>
25: </c:forEach> |
Code:
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<form:form commandName="category" method="post" action='<%=response.encodeUrl("/category/categorylist")%>'>
<fieldset>
<table>
<tr>
<td> Category:</td>
<td>
<form:select path="name">
<c:forEach var="category" items="${categoryList}">
<form:option value="${category.id}">${category.name}</form:option>
</c:forEach>
</form:select>
</td>
</tr>
<tr>
<td><input type="submit" value="<c:choose><c:when test="${category.id==null}">Add </c:when><c:otherwise>Edit Category</c:otherwise></c:choose>"/></td>
</tr>
</table>
</fieldset>
<a href="<c:url value='/'/>">home page</a><br/>
</form:form> |
Neither BindingResult nor plain target object for bean name 'category' available as request attribute
Citation:
Envoyé par
andry.aime
Bonjour,
J'ai mal lu ton code quand tu l'as posté sans les balises.
En revenant sur les premiers codes postés, tu n'as pas ajouté d'attribut "categorie" dans ton ModelAndView. Donc c'est pas connu à cette ligne:
Il faut faire attention aussi au NullPointerException.
A+.
Bonjour
l'erreur viens pas là c'est à la ligne 21 voici le code après modification
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org.apache.jasper.JasperException: An exception occurred processing JSP page /WEB-INF/views/categorylist.jsp at line 21
18:
19: <table border="1" cellspacing="1">
20: <tr>
21: <form:select path="name">
22: <c:forEach var="category" items="${categoryList}">
23: <form:option value="${category.id}">${category.name}</form:option>
24: </c:forEach> |
message d'erreur
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cause mère
java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'category' available as request attribute
org.springframework.web.servlet.support.BindStatus.<init>(BindStatus.java:141)
org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getBindStatus(AbstractDataBoundFormElementTag.java:178)
org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getPropertyPath(AbstractDataBoundFormElementTag.java:198)
org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getName(AbstractDataBoundFormElementTag.java:164)
org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.autogenerateId(AbstractDataBoundFormElementTag.java:151)
org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.resolveId(AbstractDataBoundFormElementTag.java:142)
org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.writeDefaultAttributes(AbstractDataBoundFormElementTag.java:126)
org.springframework.web.servlet.tags.form.AbstractHtmlElementTag.writeDefaultAttributes(AbstractHtmlElementTag.java:421)
org.springframework.web.servlet.tags.form.SelectTag.writeTagContent(SelectTag.java:199) |
