Hibernate ApplicationEventMulticaster未初始化-调用'；刷新'；在多播事件之前

我正在尝试为我的应用程序实现

ehcache

，但在尝试调用服务器时，出现以下错误-

java.lang.IllegalStateException: ApplicationEventMulticaster not initialized - call 'refresh' before multicasting events via the context: WebApplicationContext for namespace 'dispatcher-servlet': startup date [Thu Apr 16 14:37:53 IST 2015]; root of context hierarchy
    at org.springframework.context.support.AbstractApplicationContext.getApplicationEventMulticaster(AbstractApplicationContext.java:344)
    at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:331)
    at org.springframework.web.servlet.FrameworkServlet.publishRequestHandledEvent(FrameworkServlet.java:1061)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:996)
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:620)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Unknown Source)

我遵循的步骤-

步骤1-在

/src/main/resources

下创建ehcache.xml文件，如下所示-

<?xml version="1.0" encoding="UTF-8"?>
<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:noNamespaceSchemaLocation="ehcache.xsd" 
    updateCheck="true"
    monitoring="autodetect" 
    dynamicConfig="true">

    <diskStore path="java.io.tmpdir" />

    <cache name="movieFindCache" 
        maxEntriesLocalHeap="10000"
        maxEntriesLocalDisk="1000" 
        eternal="false" 
        diskSpoolBufferSizeMB="20"
        timeToIdleSeconds="300" timeToLiveSeconds="600"
        memoryStoreEvictionPolicy="LFU" 
        transactionalMode="off">
        <persistence strategy="localTempSwap" />
    </cache>

</ehcache>

步骤3-将以下内容添加到启动时调用的

webappinitializer.java

AnnotationConfigWebApplicationContext ctx = new AnnotationConfigWebApplicationContext();  
        ctx.register(AppConfig.class);  
        ctx.register(HibernateConfiguration.class); 
        ctx.setServletContext(servletContext);    
        Dynamic dynamic = servletContext.addServlet("dispatcher", new DispatcherServlet(ctx));  
        dynamic.setLoadOnStartup(1); 

步骤4-pom.xml包含-

<dependencies>
    <dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-tx</artifactId>
        <version>4.0.6.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-orm</artifactId>
        <version>4.0.6.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
    </dependency>
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>3.8.1</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-core</artifactId>
        <version>4.3.8.Final</version>
    </dependency>




    <dependency>
        <groupId>net.sf.ehcache</groupId>
        <artifactId>ehcache</artifactId>
        <version>2.9.0</version>
    </dependency>

        <!-- Optional, to log stuff -->
    <dependency>
        <groupId>ch.qos.logback</groupId>
        <artifactId>logback-classic</artifactId>
        <version>1.0.13</version>
    </dependency>

    <!-- Spring caching framework inside this -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>4.1.4.RELEASE</version>
    </dependency>

    <!-- Support for Ehcache and others -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context-support</artifactId>
        <version>4.1.4.RELEASE</version>
    </dependency>





    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-osgi</artifactId>
        <version>4.3.8.Final</version>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-envers</artifactId>
        <version>4.3.8.Final</version>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-c3p0</artifactId>
        <version>4.3.8.Final</version>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-proxool</artifactId>
        <version>4.3.8.Final</version>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-infinispan</artifactId>
        <version>4.3.8.Final</version>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-ehcache</artifactId>
        <version>4.3.8.Final</version>
    </dependency>

org.springframework.boot
SpringBootStarterWeb
org.springframework
德克萨斯州春季
4.0.6.1发布
org.springframework
春季甲虫
4.0.6.1发布
com.fasterxml.jackson.core
杰克逊数据绑定
朱尼特
朱尼特
3.8.1
测试
org.hibernate
冬眠核心
4.3.8.最终版本
net.sf.ehcache
ehcache
2.9.0
回写
回归经典
1.0.13
org.springframework
spring上下文
4.1.4.1发布
org.springframework
spring上下文支持
4.1.4.1发布
org.hibernate
冬眠osgi
4.3.8.最终版本
org.hibernate
冬眠使者
4.3.8.最终版本
org.hibernate
hibernate-c3p0
4.3.8.最终版本
org.hibernate
冬眠醇
4.3.8.最终版本
org.hibernate
冬眠英菲尼斯潘
4.3.8.最终版本
org.hibernate
休眠ehcache
4.3.8.最终版本

---

我无法理解上述错误的根本原因。感谢您的帮助

spring boot背后的理念是所有配置都由spring自动完成

在您的情况下，请使用以下POM

 <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.2.3.RELEASE</version>
    </parent>

     <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
           <groupId>org.springframework</groupId>
           <artifactId>spring-context-support</artifactId>
        </dependency>
        <dependency>
           <groupId>org.springframework</groupId>
           <artifactId>spring-context-support</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
        <groupId>net.sf.ehcache</groupId>
        <artifactId>ehcache</artifactId>
        <version>2.9.0</version>
    </dependency>
    <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
  </dependencies>

添加Appconfig文件

package org.arunm.ehcacheconfig;


import org.springframework.cache.CacheManager;
import org.springframework.cache.ehcache.EhCacheCacheManager;
import org.springframework.cache.ehcache.EhCacheManagerFactoryBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.ClassPathResource;


@Configuration
public class AppConfig {

    @Bean
    public CacheManager getEhCacheManager(){
            return  new EhCacheCacheManager(getEhCacheFactory().getObject());
    }
    @Bean
    public EhCacheManagerFactoryBean getEhCacheFactory(){
        EhCacheManagerFactoryBean factoryBean = new EhCacheManagerFactoryBean();
        factoryBean.setConfigLocation(new ClassPathResource("ehcache.xml"));
        factoryBean.setShared(true);
        return factoryBean;
    }

}

使用以下代码添加顶级类

package org.ehcachetest;

import java.util.Arrays;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.ComponentScan;

/**
 * Hello world!
 *
 */

@EnableAutoConfiguration
@ComponentScan
public class App 
{
    public static void main( String[] args )
    {
        ApplicationContext ctx = SpringApplication.run(App.class, args);

        String[] beanNames = ctx.getBeanDefinitionNames();
        Arrays.sort(beanNames);
        for (String beanName : beanNames) {
            System.out.println(beanName);
        }
    }
}

---

如果您运行App-the-main方法，您会发现spring已经自动为您创建了sessionFactory、TransactionManager等。不需要任何手动配置，这意味着不需要添加dispatcherservlet、hibernate配置等。一切都由spring管理。

这有点愚蠢，但我的问题是我将

@SpringBootApplication

类（即大多数项目中的App、Application、WebApplication）在默认包中。因此，一切都乱七八糟

---

我不知道为什么会出现这个确切的错误，但将应用程序类移动到一个包中肯定会解决它。

对于初学者，不要混合使用spring版本，其次使用启动器并使用spring引导进行配置。使用启动器的方法？另外，如果您可以详细介绍一下如何使用spring引导进行配置。我想我用的是同样的。你用的是spring boot，但你很努力地不使用spring boot。通过指定所有配置，不使用自动配置功能，也不使用spring引导启动器。谢谢Deinum。我要按你说的方式试试。谢谢你，阿鲁姆，说得那么清楚。按照你的建议试一下。但似乎没有顶级类，只有webinitializer.java有一个启动时的

方法。有什么建议吗？关键是你不需要webinitializer.jav。Spring已经为您创建了它。运行代码并检查输出，如果应用程序类。。您可以看到bean的列表。。查看youtube上的视频以及springdeveloper上的视频。事实上，奇怪的是，将starter应用程序类移动到另一个包解决了这个问题。
package org.arunm.ehcacheconfig;


import org.springframework.cache.CacheManager;
import org.springframework.cache.ehcache.EhCacheCacheManager;
import org.springframework.cache.ehcache.EhCacheManagerFactoryBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.ClassPathResource;


@Configuration
public class AppConfig {

    @Bean
    public CacheManager getEhCacheManager(){
            return  new EhCacheCacheManager(getEhCacheFactory().getObject());
    }
    @Bean
    public EhCacheManagerFactoryBean getEhCacheFactory(){
        EhCacheManagerFactoryBean factoryBean = new EhCacheManagerFactoryBean();
        factoryBean.setConfigLocation(new ClassPathResource("ehcache.xml"));
        factoryBean.setShared(true);
        return factoryBean;
    }

}

package org.ehcachetest;

import java.util.Arrays;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.ComponentScan;

/**
 * Hello world!
 *
 */

@EnableAutoConfiguration
@ComponentScan
public class App 
{
    public static void main( String[] args )
    {
        ApplicationContext ctx = SpringApplication.run(App.class, args);

        String[] beanNames = ctx.getBeanDefinitionNames();
        Arrays.sort(beanNames);
        for (String beanName : beanNames) {
            System.out.println(beanName);
        }
    }
}