Spring 3.1 JPA在tomcat中运行时未插入数据 [英] Spring 3.1 JPA not inserting data while running in tomcat
本文介绍了Spring 3.1 JPA在tomcat中运行时未插入数据的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我花了三天的时间试图找到解决该问题的方法，但无济于事.我很想弄清楚这一点.我有一个简单的spring应用程序，它在带有jstl标签1.2的servlet 2.5中运行，在使用spring 3.1的tomcat中运行，并使用了hibernate和hibernate jpa实现.
我可以列出页面中的数据，但无法完成插入.记录可以追溯，它似乎没有任何问题.但是没有插入发生.我知道还有其他类似的帖子，但是我已经仔细阅读了所有这些帖子，却无法在任何地方找到解决方案.
如果我通过MAIN类运行完全相同的代码，则插入工作正常.在tomcat中作为Web应用程序运行时，它只是不起作用.
我试图通过有效的主程序来运行它，在控制器内部，我跳过了调用服务层的尝试，尝试直接进入接口，如果不起作用，我尝试直接进入实现DAO类，并且没有工作.通过spring日志显示，正在创建实体管理器，并在发生事务之前将其关闭.
请帮助我.
这是我的应用环境
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
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/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd"
default-autowire="byName">
<context:component-scan base-package="com.naturalbornliar.site"/>
<tx:annotation-driven />
<!-- Bean declarations go here-->
<bean id="duke" class="com.naturalbornliar.site.entity.Admin">
<constructor-arg name="admin_id" type="Long" value="15" />
<constructor-arg name="admin_login" type="String" value="testUser" />
<constructor-arg name="admin_pwd" type="String" value="testPwd" />
<constructor-arg name="email_id" type="int" value="15" />
<constructor-arg name="quote" type="String" value="Something to say here" />
</bean>
<!-- <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"> -->
<!-- <property name="driverClassName" value="com.mysql.jdbc.Driver"/> -->
<!-- <property name="url" value="jdbc:mysql://localhost:3306/nbl_db"/> -->
<!-- <property name="username" value="web_user"/> -->
<!-- <property name="password" value="web_pwd"/> -->
<!-- <property name="initialSize" value="5"/> -->
<!-- <property name="maxActive" value="10"/> -->
<!-- </bean> -->
<bean id="simpledataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/nbl_db"/>
<property name="username" value="web_user"/>
<property name="password" value="web_pwd"/>
</bean>
<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
<constructor-arg ref="simpledataSource"/>
</bean>
<bean id="emf" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceUnitName" value="nblPersistenceUnit"/>
<property name="dataSource" ref="simpledataSource"/>
<property name="jpaVendorAdapter" ref="jpaVendorAdapter"/>
</bean>
<!-- <bean id="emf" class="org.springframework.orm.jpa.LocalEntityManagerFactoryBean"> -->
<!-- <property name="persistenceUnitName" value="nblPersistenceUnit"/> -->
<!-- <property name="dataSource" ref="simpledataSource"/>-->
<!-- <property name="jpaVendorAdapter" ref="jpaVendorAdapter"/> -->
<!-- </bean> -->
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="emf"/>
<property name="jpaDialect" ref="jpaDialect"/>
</bean>
<bean id="jpaDialect" class="org.springframework.orm.jpa.vendor.HibernateJpaDialect"/>
<bean id="jpaVendorAdapter" class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="database" value="MYSQL"/>
<property name="showSql" value="true"/>
<property name="databasePlatform" value="org.hibernate.dialect.MySQLDialect"/>
</bean>
<bean class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor" />
<bean class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor"/>
<tx:advice id="txAdvice">
<tx:attributes>
<tx:method name="add*" propagation="REQUIRED"/>
<tx:method name="delete*" propagation="REQUIRED"/>
<tx:method name="*" propagation="SUPPORTS" read-only="true"/>
</tx:attributes>
</tx:advice>
<aop:config>
<aop:advisor pointcut="execution(* *..CategoryDaoImpl.*(..))" advice-ref="txAdvice"/>
</aop:config>
</beans>
这是我的控制人:
package com.naturalbornliar.site.mvc;
import javax.inject.Inject;
import org.apache.log4j.Logger;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import com.naturalbornliar.site.entity.Category;
import com.naturalbornliar.site.entity.Link;
import com.naturalbornliar.site.service.CategoryService;
@Controller
@RequestMapping("/categories")
public class CategoryController {
protected final Logger logger = Logger.getLogger(CategoryController.class);
private final CategoryService categoryService;
@Inject
public CategoryController(CategoryService categoryService){
this.categoryService = categoryService;
}
@RequestMapping(value="/listCategories")
public String listLinks(Model model){
model.addAttribute("categories", categoryService.getAllCategories());
return "categories";
}
@RequestMapping(method=RequestMethod.GET, params="new")
public String showCreateCategoryForm(Model model){
model.addAttribute(new Category());
return "addcategory";
}
@RequestMapping(method=RequestMethod.POST)
public String addCategoryFromForm(Category category, BindingResult bindingResult){
if(bindingResult.hasErrors()){
return"addcategory";
}
categoryService.addCategory(category);
return "redirect:/categories/listCategories";
}
}
这是我从控制器调用的服务:
package com.naturalbornliar.site.service;
import java.util.Collection;
import javax.inject.Inject;
import org.springframework.stereotype.Service;
import com.naturalbornliar.site.entity.Category;
import com.naturalbornliar.site.i.ICategoryDao;
@Service
public class CategoryService {
private ICategoryDao iCategoryDao;
@Inject
public CategoryService(ICategoryDao iCategoryDao){
this.iCategoryDao = iCategoryDao;
}
public Collection<Category> getAllCategories(){
return iCategoryDao.getAllCategories();
}
public Collection<Category> getCategoriesByType(String type) {
return iCategoryDao.getCategoriesByType(type);
}
public Category getCategoryById(Long id) {
throw new UnsupportedOperationException();
}
public void deleteCategory(Category category) {
throw new UnsupportedOperationException();
}
public void updateCategory(Category category) {
throw new UnsupportedOperationException();
}
public void inactivateCategory(Category category){
throw new UnsupportedOperationException();
}
public void addCategory(Category category){
iCategoryDao.addCategory(category);
}
}
这是我正在实施的DAO:
package com.naturalbornliar.site.dao;
import java.util.Collection;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import org.apache.log4j.Logger;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;
import com.naturalbornliar.site.entity.Content;
import com.naturalbornliar.site.i.IContentDao;
@Transactional
@Repository
public class ContentDaoImpl implements IContentDao {
protected final Logger logger = Logger.getLogger(ContentDaoImpl.class);
@PersistenceContext
private EntityManager em;
public EntityManager getEm() {
return em;
}
public void setEm(EntityManager em) {
this.em = em;
}
@Override
public void addContent(Content content) {
// TODO Auto-generated method stub
em.persist(content);
}
@Override
public void deleteContent(Content content) {
// TODO Auto-generated method stub
em.remove(content);
}
@Override
public void inactivateContent(Content content) {
// TODO Auto-generated method stub
}
@Override
public Content getContentById(Long id) {
// TODO Auto-generated method stub
return null;
}
@Override
public Content getContentByName(String name) {
// TODO Auto-generated method stub
return null;
}
@Override
public Collection<Content> getAllObjects() {
List<Content> resultList = em.createQuery("FROM Content", Content.class).getResultList();
return resultList;
}
}
这里是界面(以防万一)
package com.naturalbornliar.site.i;
import java.util.Collection;
import com.naturalbornliar.site.entity.Content;
public interface IContentDao {
public void addContent(Content content);
public void deleteContent(Content content);
public void inactivateContent(Content content);
public Content getContentById(Long id);
public Content getContentByName(String name);
public Collection<Content> getAllObjects();
}
解决方案
我实际上已经解决了这个问题.这是解决方案，还有一个解决该问题的stackoverflow问题:
基本上，为使交易能够正确触发，我需要添加:
<tx:annotation-driven proxy-target-class="true"/>
到我的servlet xml.我想如果您仅将它放在应用程序config.xml中，则它仅在主类下运行时才起作用(例如在独立类中)，如果您需要在容器中运行它，则还必须在Servlet中声明事务注释. /p>
I have spent three days trying to find the solution to this problem to no avail. I am desperate to figure this out. I have a simple spring app, running in servlet 2.5 with jstl tags 1.2, running in tomcat with spring 3.1, using hibernate and the hibernate jpa implementation.
I can list data from a page, but I cannot complete an insert. The record goes back, it appears to fire through with no problems. Yet no insert takes place. I know there are other posts similar but I have looked through them all and have not been able to find a solution anywhere.
If I run the exact same code via a MAIN class, the insert works fine. It just does not work when running as a web-app in tomcat.
I have tried running this via the main which works, inside the controller I have skipped calling the service layer, trying to go directly to the interface, when that didnt work, I tried going directly to the implementing DAO class, and that didnt work. It appears via the spring logs, that the entity manager is getting created, and shut down before a transaction takes place.
Please help me.
Here is my App-context
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
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/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd"
default-autowire="byName">
<context:component-scan base-package="com.naturalbornliar.site"/>
<tx:annotation-driven />
<!-- Bean declarations go here-->
<bean id="duke" class="com.naturalbornliar.site.entity.Admin">
<constructor-arg name="admin_id" type="Long" value="15" />
<constructor-arg name="admin_login" type="String" value="testUser" />
<constructor-arg name="admin_pwd" type="String" value="testPwd" />
<constructor-arg name="email_id" type="int" value="15" />
<constructor-arg name="quote" type="String" value="Something to say here" />
</bean>
<!-- <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"> -->
<!-- <property name="driverClassName" value="com.mysql.jdbc.Driver"/> -->
<!-- <property name="url" value="jdbc:mysql://localhost:3306/nbl_db"/> -->
<!-- <property name="username" value="web_user"/> -->
<!-- <property name="password" value="web_pwd"/> -->
<!-- <property name="initialSize" value="5"/> -->
<!-- <property name="maxActive" value="10"/> -->
<!-- </bean> -->
<bean id="simpledataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/nbl_db"/>
<property name="username" value="web_user"/>
<property name="password" value="web_pwd"/>
</bean>
<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
<constructor-arg ref="simpledataSource"/>
</bean>
<bean id="emf" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceUnitName" value="nblPersistenceUnit"/>
<property name="dataSource" ref="simpledataSource"/>
<property name="jpaVendorAdapter" ref="jpaVendorAdapter"/>
</bean>
<!-- <bean id="emf" class="org.springframework.orm.jpa.LocalEntityManagerFactoryBean"> -->
<!-- <property name="persistenceUnitName" value="nblPersistenceUnit"/> -->
<!-- <property name="dataSource" ref="simpledataSource"/>-->
<!-- <property name="jpaVendorAdapter" ref="jpaVendorAdapter"/> -->
<!-- </bean> -->
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="emf"/>
<property name="jpaDialect" ref="jpaDialect"/>
</bean>
<bean id="jpaDialect" class="org.springframework.orm.jpa.vendor.HibernateJpaDialect"/>
<bean id="jpaVendorAdapter" class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="database" value="MYSQL"/>
<property name="showSql" value="true"/>
<property name="databasePlatform" value="org.hibernate.dialect.MySQLDialect"/>
</bean>
<bean class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor" />
<bean class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor"/>
<tx:advice id="txAdvice">
<tx:attributes>
<tx:method name="add*" propagation="REQUIRED"/>
<tx:method name="delete*" propagation="REQUIRED"/>
<tx:method name="*" propagation="SUPPORTS" read-only="true"/>
</tx:attributes>
</tx:advice>
<aop:config>
<aop:advisor pointcut="execution(* *..CategoryDaoImpl.*(..))" advice-ref="txAdvice"/>
</aop:config>
</beans>
Here is my controller:
package com.naturalbornliar.site.mvc;
import javax.inject.Inject;
import org.apache.log4j.Logger;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import com.naturalbornliar.site.entity.Category;
import com.naturalbornliar.site.entity.Link;
import com.naturalbornliar.site.service.CategoryService;
@Controller
@RequestMapping("/categories")
public class CategoryController {
protected final Logger logger = Logger.getLogger(CategoryController.class);
private final CategoryService categoryService;
@Inject
public CategoryController(CategoryService categoryService){
this.categoryService = categoryService;
}
@RequestMapping(value="/listCategories")
public String listLinks(Model model){
model.addAttribute("categories", categoryService.getAllCategories());
return "categories";
}
@RequestMapping(method=RequestMethod.GET, params="new")
public String showCreateCategoryForm(Model model){
model.addAttribute(new Category());
return "addcategory";
}
@RequestMapping(method=RequestMethod.POST)
public String addCategoryFromForm(Category category, BindingResult bindingResult){
if(bindingResult.hasErrors()){
return"addcategory";
}
categoryService.addCategory(category);
return "redirect:/categories/listCategories";
}
}
Here is my service called from the controller:
package com.naturalbornliar.site.service;
import java.util.Collection;
import javax.inject.Inject;
import org.springframework.stereotype.Service;
import com.naturalbornliar.site.entity.Category;
import com.naturalbornliar.site.i.ICategoryDao;
@Service
public class CategoryService {
private ICategoryDao iCategoryDao;
@Inject
public CategoryService(ICategoryDao iCategoryDao){
this.iCategoryDao = iCategoryDao;
}
public Collection<Category> getAllCategories(){
return iCategoryDao.getAllCategories();
}
public Collection<Category> getCategoriesByType(String type) {
return iCategoryDao.getCategoriesByType(type);
}
public Category getCategoryById(Long id) {
throw new UnsupportedOperationException();
}
public void deleteCategory(Category category) {
throw new UnsupportedOperationException();
}
public void updateCategory(Category category) {
throw new UnsupportedOperationException();
}
public void inactivateCategory(Category category){
throw new UnsupportedOperationException();
}
public void addCategory(Category category){
iCategoryDao.addCategory(category);
}
}
Here is my implementing DAO:
package com.naturalbornliar.site.dao;
import java.util.Collection;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import org.apache.log4j.Logger;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;
import com.naturalbornliar.site.entity.Content;
import com.naturalbornliar.site.i.IContentDao;
@Transactional
@Repository
public class ContentDaoImpl implements IContentDao {
protected final Logger logger = Logger.getLogger(ContentDaoImpl.class);
@PersistenceContext
private EntityManager em;
public EntityManager getEm() {
return em;
}
public void setEm(EntityManager em) {
this.em = em;
}
@Override
public void addContent(Content content) {
// TODO Auto-generated method stub
em.persist(content);
}
@Override
public void deleteContent(Content content) {
// TODO Auto-generated method stub
em.remove(content);
}
@Override
public void inactivateContent(Content content) {
// TODO Auto-generated method stub
}
@Override
public Content getContentById(Long id) {
// TODO Auto-generated method stub
return null;
}
@Override
public Content getContentByName(String name) {
// TODO Auto-generated method stub
return null;
}
@Override
public Collection<Content> getAllObjects() {
List<Content> resultList = em.createQuery("FROM Content", Content.class).getResultList();
return resultList;
}
}
Here is the interface (just in case)
package com.naturalbornliar.site.i;
import java.util.Collection;
import com.naturalbornliar.site.entity.Content;
public interface IContentDao {
public void addContent(Content content);
public void deleteContent(Content content);
public void inactivateContent(Content content);
public Content getContentById(Long id);
public Content getContentByName(String name);
public Collection<Content> getAllObjects();
}
解决方案
Well I actually solved the problem. Here is the solution, there was another stackoverflow issue that solved it:
Spring @Transaction not starting transactions
Basically all that was needed for transactions to fire correctly was for me to add:
<tx:annotation-driven proxy-target-class="true"/>
to my servlet xml. I guess if you just have it in the application config.xml it only works when running under the main class (like in a standalone) if you need to run it in a container you have to declare transaction annotations in the servlet as well.
这篇关于Spring 3.1 JPA在tomcat中运行时未插入数据的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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