java无法从Thymeleaf获取transactionsynchronized会话
我以前使用SpringMVC，jsp页面也可以，但现在我尝试将我的应用程序与Thymeleaf集成
Thymeleafservlet。xml
<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:mvc="http://www.springframework.org/schema/mvc"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
">
<mvc:annotation-driven/>
<context:annotation-config />
<context:component-scan base-package="com.application" />
<bean id="templateResolver" class="org.thymeleaf.templateresolver.ServletContextTemplateResolver">
<property name="prefix" value="/WEB-INF/thymeleaf/" />
<property name="suffix" value=".html" />
</bean>
<bean id="templateEngine" class="org.thymeleaf.spring4.SpringTemplateEngine">
<property name="templateResolver" ref="templateResolver" />
</bean>
<bean id="viewResolver" class="org.thymeleaf.spring4.view.ThymeleafViewResolver">
<property name="templateEngine" ref="templateEngine" />
</bean>
<bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource">
<property name="basenames">
<!-- messages.properies -->
<list><value>messages</value></list>
</property>
</bean>
<bean id="dataSource" class="org.springframework.jdbc.datasource.SingleConnectionDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
<property name="url" value="jdbc:mysql://localhost:3306/database"></property>
<property name="password" value="paswd"></property>
<property name="username" value="root"></property>
<property name="suppressClose" value="true"></property>
</bean>
<bean id="dataSourceProxy"
class="org.springframework.jdbc.datasource.LazyConnectionDataSourceProxy"
p:targetDataSource-ref="dataSource" />
<bean id="sessionFactory"
class="org.springframework.orm.hibernate5.LocalSessionFactoryBean"
p:dataSource-ref="dataSourceProxy" p:configLocation="classpath:/hibernate.cfg.xml" />
<bean id="transactionManager"
class="org.springframework.orm.hibernate5.HibernateTransactionManager"
p:sessionFactory-ref="sessionFactory" />
</beans>
控制器：
@Controller
public class ProductController {
@Autowired
private ProductService productService;
@RequestMapping("/tl")
public String tl() {
return "test";
}
/* List all the products on the db */
@RequestMapping(value = "/products", method = RequestMethod.GET)
public ModelAndView getAll(Model model) {
return new ModelAndView("products", "list", productService.list());
}
我的应用程序可以与下一个URL http://localhost:8080/MyApp/tl一起工作，但不能与http://localhost:8080/MyApp/products一起工作
这里是我的html文件：
测试。html:
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org" th:lang="${#locale.language}">
<head>
<meta charset="UTF-8" />
<title th:text="#{title}">hello html5</title>
</head>
<body>
<h1 th:text="#{hello}">hello world</h1>
<p th:text="#{hola}">hola mundo</p>
</body>
</html>
产品。html:
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8"/>
<title>Spring Thymeleaf</title>
</head>
<body>
<table border="1">
<tr th:each="product: ${list}">
<td th:text="${product.id}" />
<td th:text="${product.name}" />
</tr>
</table>
</body>
</html>
当我尝试访问http://localhost:8080/MyApp/products时，会出现下一个错误：
GRAVE: El Servlet.service() para el servlet [thymeleaf] en el contexto con ruta [/MyApp] lanzó la excepción [Request processing failed; nested exception is org.hibernate.HibernateException: Could not obtain transaction-synchronized Session for current thread] con causa raíz
org.hibernate.HibernateException: Could not obtain transaction-synchronized Session for current thread
at org.springframework.orm.hibernate5.SpringSessionContext.currentSession(SpringSessionContext.java:133)
at org.hibernate.internal.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:456)
at com.system.app.model.dao.impl.GenericDaoHibernate.getSession(GenericDaoHibernate.java:51)
at com.system.app.model.dao.impl.GenericDaoHibernate.list(GenericDaoHibernate.java:90)
at com.system.app.model.service.impl.ProductServiceImpl.listViajantes(ProductServiceImpl.java:49)
at com.system.app.controller.ProductController.getAll(ProductController.java:41)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:116)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:528)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1099)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:670)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1520)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1476)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
我拥有Spring和Hibernate所需的所有依赖项（在与Thymeleaf集成之前，我的应用程序工作正常），我将这些依赖项添加到Thymeleaf中：
<dependency>
<groupId>org.thymeleaf</groupId>
<artifactId>thymeleaf</artifactId>
<version>3.0.9.RELEASE</version>
</dependency>
<dependency>
<groupId>org.thymeleaf</groupId>
<artifactId>thymeleaf-spring4</artifactId>
<version>3.0.9.RELEASE</version>
</dependency>
提前感谢你的帮助
# 1 楼答案
我猜如果productService在方法上有@Transactional，您可能会忘记在xml中添加事务注释
请将上述元素添加到xml中