2

我需要在 Filter for spring mvc 中初始化休眠会话，我知道我需要在 web.xml 中添加 ContextListner 但我不知道在 applicationContext.xml 文件中写什么。请指导一些教程或示例......

详细说明：我需要使用 spring 表单标签预填充我的表单，因为我需要在 jsp 生命周期执行中打开 HibernateSession。我创建了一个 HibernateSessionFilter 来在 jsp 中启用休眠会话。现在再次为此我需要初始化我的休眠会话。见

sf = //不知道写什么;

在下面的代码中。我不知道如何在那里获得休眠 sessionFactory。我知道它可以通过 applicationContext.xml 完成，但无法获得所需的确切配置。

编辑1* * ***

现在再次回到我开始的同一个异常：

 org.springframework.beans.InvalidPropertyException: Invalid property 'firstname' of bean class [net.viralpatel.contact.form.Contact_$$_javassist_0]: Getter for property 'firstname' threw exception; nested exception is java.lang.reflect.InvocationTargetException
at org.springframework.beans.BeanWrapperImpl.getPropertyValue(BeanWrapperImpl.java:845)
at org.springframework.beans.BeanWrapperImpl.getPropertyValue(BeanWrapperImpl.java:721)
at org.springframework.validation.AbstractPropertyBindingResult.getActualFieldValue(AbstractPropertyBindingResult.java:99)
at org.springframework.validation.AbstractBindingResult.getFieldValue(AbstractBindingResult.java:219)
at org.springframework.web.servlet.support.BindStatus.<init>(BindStatus.java:120)
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.LabelTag.autogenerateFor(LabelTag.java:129)
at org.springframework.web.servlet.tags.form.LabelTag.resolveFor(LabelTag.java:119)
at org.springframework.web.servlet.tags.form.LabelTag.writeTagContent(LabelTag.java:89)
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.jsp.contact_005fedit_jsp._jspx_meth_form_005flabel_005f0(contact_005fedit_jsp.java:255)
at org.apache.jsp.WEB_002dINF.jsp.contact_005fedit_jsp._jspx_meth_form_005fform_005f0(contact_005fedit_jsp.java:177)
at org.apache.jsp.WEB_002dINF.jsp.contact_005fedit_jsp._jspService(contact_005fedit_jsp.java:126)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
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:722)
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:684)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:471)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:402)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:329)
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:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
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:224)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:307)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.springframework.beans.BeanWrapperImpl.getPropertyValue(BeanWrapperImpl.java:761)
        ... 55 more
Caused by: org.hibernate.LazyInitializationException: could not initialize proxy - no Session
        at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:167)
        at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:215)
        at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:190)
        at net.viralpatel.contact.form.Contact_$$_javassist_0.getFirstname(Contact_$$_javassist_0.java)
        ... 60 more
Sep 16, 2012 4:36:12 PM org.apache.catalina.core.ApplicationDispatcher invoke
SEVERE: Servlet.service() for servlet jsp threw exception
org.hibernate.LazyInitializationException: could not initialize proxy - no Session
        at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:167)
        at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:215)
        at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:190)
        at net.viralpatel.contact.form.Contact_$$_javassist_0.getFirstname(Contact_$$_javassist_0.java)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.springframework.beans.BeanWrapperImpl.getPropertyValue(BeanWrapperImpl.java:761)
        at org.springframework.beans.BeanWrapperImpl.getPropertyValue(BeanWrapperImpl.java:721)
        at org.springframework.validation.AbstractPropertyBindingResult.getActualFieldValue(AbstractPropertyBindingResult.java:99)
        at org.springframework.validation.AbstractBindingResult.getFieldValue(AbstractBindingResult.java:219)
        at org.springframework.web.servlet.support.BindStatus.<init>(BindStatus.java:120)
        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.LabelTag.autogenerateFor(LabelTag.java:129)
        at org.springframework.web.servlet.tags.form.LabelTag.resolveFor(LabelTag.java:119)
        at org.springframework.web.servlet.tags.form.LabelTag.writeTagContent(LabelTag.java:89)
        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.jsp.contact_005fedit_jsp._jspx_meth_form_005flabel_005f0(contact_005fedit_jsp.java:255)
        at org.apache.jsp.WEB_002dINF.jsp.contact_005fedit_jsp._jspx_meth_form_005fform_005f0(contact_005fedit_jsp.java:177)
        at org.apache.jsp.WEB_002dINF.jsp.contact_005fedit_jsp._jspService(contact_005fedit_jsp.java:126)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
        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:722)
        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:684)
        at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:471)
        at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:402)
        at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:329)
        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:722)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
        at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
        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:224)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
        at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
        at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987)
        at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579)
        at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:307)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:662)
Sep 16, 2012 4:36:12 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [spring] in context with path [/Spring3HibernateMaven] threw exception [org.springframework.beans.InvalidPropertyException: Invalid property 'firstname' of bean class [net.viralpatel.contact.form.Contact_$$_javassist_0]: Getter for property 'firstname' threw exception; nested exception is java.lang.reflect.InvocationTargetException] with root cause

我的 web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
id="WebApp_ID" version="2.5">
<display-name>Spring3-Hibernate</display-name>
<welcome-file-list>
    <welcome-file>list.html</welcome-file>
</welcome-file-list>
<servlet>
    <servlet-name>spring</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>spring</servlet-name>
    <url-pattern>/</url-pattern>
</servlet-mapping>
<servlet-mapping>
    <servlet-name>default</servlet-name>
    <url-pattern>*.css</url-pattern>
</servlet-mapping>
<servlet-mapping>
    <servlet-name>default</servlet-name>
    <url-pattern>*.js</url-pattern>
</servlet-mapping>
<servlet-mapping>
    <servlet-name>default</servlet-name>
    <url-pattern>*.gif</url-pattern>
</servlet-mapping>
<servlet-mapping>
    <servlet-name>default</servlet-name>
    <url-pattern>*.jpg</url-pattern>
</servlet-mapping>
<servlet-mapping>
    <servlet-name>default</servlet-name>
    <url-pattern>*.png</url-pattern>
</servlet-mapping>
<filter>
    <filter-name>hibernateFilter</filter-name>
    <filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>
    <init-param>
        <param-name>sessionFactoryBeanName</param-name>
        <param-value>sessionFactory</param-value>
    </init-param>
</filter>
<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<filter-mapping>
    <filter-name>hibernateFilter</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

我的联系方式：

package net.viralpatel.contact.form;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name="CONTACTS")
public class Contact {

@Id
@Column(name="ID")
@GeneratedValue
private Integer id;

@Column(name="FIRSTNAME")
private String firstname;

@Column(name="LASTNAME")
private String lastname;

@Column(name="EMAIL")
private String email;

@Column(name="TELEPHONE")
private String telephone;


public String getEmail() {
    return email;
}
public String getTelephone() {
    return telephone;
}
public void setEmail(String email) {
    this.email = email;
}
public void setTelephone(String telephone) {
    this.telephone = telephone;
}
public String getFirstname() {
    return firstname;
}
public String getLastname() {
    return lastname;
}
public void setFirstname(String firstname) {
    this.firstname = firstname;
}
public void setLastname(String lastname) {
    this.lastname = lastname;
}
public Integer getId() {
    return id;
}
public void setId(Integer id) {
    this.id = id;
}

}

我的应用过滤器：

private static Log log = LogFactory.getLog(HibernateSessionRequestFilter.class);

private SessionFactory sf;

 public void init(FilterConfig filterConfig) throws ServletException {
    log.debug("Initializing filter...");
    sf = //don't know what to write ;
}

}

我的联系人DAO

@Repository
public class ContactDAOImpl implements ContactDAO {

@Autowired
private SessionFactory sessionFactory;

public void addContact(Contact contact) {
    sessionFactory.getCurrentSession().save(contact);
}

public List<Contact> listContact() {

    return sessionFactory.getCurrentSession().createQuery("from Contact")
            .list();
}

public void removeContact(Integer id) {
    Contact contact = (Contact) sessionFactory.getCurrentSession().load(
            Contact.class, id);
    if (null != contact) {
        sessionFactory.getCurrentSession().delete(contact);
    }

}

public Contact editContact(Integer id) {
    Contact contact = (Contact) sessionFactory.getCurrentSession().load(
            Contact.class, id);
    System.out.println("contact: "+contact);
    if (null != contact) {
        sessionFactory.getCurrentSession().update(contact);
    }
    return contact;
}

public Contact getContact(Integer id) {
    Contact contact = (Contact) sessionFactory.getCurrentSession().load(
            Contact.class, id);
    return contact;
}

}

编辑页面的控制器渲染方法：

@RequestMapping(value = "/edit/{contactId}", method = RequestMethod.GET)
public ModelAndView edit(@PathVariable("contactId") Integer contactId,
        HttpServletRequest request) {
    Contact contact = contactService.getContact(contactId);

    Map<String, Object> model = new HashedMap();
    model.put("contact", contact);

    return new ModelAndView("contact_edit", model);
}

    @RequestMapping(value = "/doedit/{contactId}", method = RequestMethod.POST)
public String editContact(@PathVariable("contactId") Integer contactId) {

    contactService.editContact(contactId);

    return "redirect:/index";
}
4

1 回答 1

3

我在您的代码中发现了一个主要错误和一个小错误。

主要错误是您在 in applicationContext.xml（正确）和 on spring-servlet.xml（必须删除）上配置了两个 Hibernate 会话工厂（这种情况下是 stange 异常）。（在 xml 中有更多详细信息作为注释）

更新的spring-servlet.xml

<?xml  version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:jee="http://www.springframework.org/schema/jee" xmlns:lang="http://www.springframework.org/schema/lang"
    xmlns:p="http://www.springframework.org/schema/p" xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:tx="http://www.springframework.org/schema/tx" xmlns:util="http://www.springframework.org/schema/util"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
        http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd
         http://www.springframework.org/schema/mvc
         http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">

    <context:annotation-config />
    <context:component-scan base-package="net.viralpatel.contact" />

    <bean id="jspViewResolver"
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass"
            value="org.springframework.web.servlet.view.JstlView" />
        <property name="prefix" value="/WEB-INF/jsp/" />
        <property name="suffix" value=".jsp" />
    </bean>

    <bean id="messageSource"
        class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
        <property name="basename" value="classpath:messages" />
        <property name="defaultEncoding" value="UTF-8" />
    </bean>


    <bean id="propertyConfigurer"
        class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"
        p:location="/WEB-INF/jdbc.properties" />

<!--
Already defined in the inner spring context, you do not need it twice

    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
        destroy-method="close" p:driverClassName="${jdbc.driverClassName}"
        p:url="${jdbc.databaseurl}" p:username="${jdbc.username}" p:password="${jdbc.password}" />
-->

<!--
ONLY one session factory per application!!
You have configured them already in applicationContext.xml

Spring mvc application have two spring contexts, an other and an inner context.
The inner context is created by ContextLoaderListener and in your case it is described in applicationContext.xml.
The outer context is created by DispatcherServelet and in your case it is described in spring-servlet.xml.

Filters can access only the inner context, therefore the OpenSessionInViewFilter requires that the inner context contain all the hibernate stuff
The outer context can beans access the inner context.
The outer context has access to all the web stuff (not like the inner context) therefore the @Controller Beans can be only instanceated in the outer context.



    <bean id="sessionFactory"
        class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="configLocation">
            <value>classpath:hibernate.cfg.xml</value>
        </property>
        <property name="configurationClass">
            <value>org.hibernate.cfg.AnnotationConfiguration</value>
        </property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">${jdbc.dialect}</prop>
                <prop key="hibernate.show_sql">true</prop>

                <prop key="hibernate.hbm2ddl.auto">update</prop>
            </props>
        </property>
    </bean>
-->

    <tx:annotation-driven />

    <!-- JSR-303 support will be detected on classpath and enabled automatically -->
    <mvc:annotation-driven />
    <bean id="transactionManager"
        class="org.springframework.orm.hibernate3.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory" />
    </bean>

</beans>

你的小错误contact_edit.jsp

而不是<form:form method="post" action="add.html" commandName="contact">使用：

<c:url var="updateUrl" value="/doedit/${contact.id}"/>
<form:form method="post" action="${updateUrl}" commandName="contact">

在你的这个修改之后，editContact我能够修改名字

/**
 * This is only prove that it works.
 * You should not update the contact directly in the controller (this is only a shortcut in for the example).
 * If you load and update the contact in an method that is @Transactional, than you can remove the @Transactional from this
 * controller method.
 */
@Transactional
@RequestMapping(value = "/doedit/{contactId}", method = RequestMethod.POST)
public String editContact(@PathVariable("contactId") final Integer contactId, final Contact editedContact) {

  //contactService.editContact(contactId);

    Contact contact = contactService.getContact(contactId);
    contact.setFirstname(editedContact.getFirstname()); //only first name for the example

    return "redirect:/index";
}
于 2012-09-16T09:37:43.900 回答