Question

当我使用HikariDataSource启动JBOSS AS 6.1时出现链接错误。怎么解决这个问题？

我使用hikariCP 1.3.3：

  <dependency>
     <groupId>com.zaxxer</groupId>
     <artifactId>HikariCP</artifactId>
     <version>1.3.3</version>
  </dependency>

Spring 3.2，JBOSS AS 6.1，Hibernate 3.6.6（与JBOSS捆绑在一起）。我删除了persistence.xml并使用LocalContainerEntityManagerFactoryBean方法以编程方式对我的DataSource进行编程：http://www.baeldung.com/2011/12/13/the-persistence-layer-with-spring-3-1-and-jpa/

我的DS配置简单：

   @Bean
   public DataSource dataSource() {
      HikariDataSource ds = new HikariDataSource(); //here i get the linkageError
      ds.setMaximumPoolSize(15);
      ds.setDataSourceClassName("com.microsoft.sqlserver.jdbc.SQLServerDataSource");
      ds.addDataSourceProperty("serverName", "localhost");
      ds.addDataSourceProperty("databaseName", "dbtest");
      ds.addDataSourceProperty("user", "dbtest");
      ds.addDataSourceProperty("password", "dbtest");
      ds.setPoolName("springHikariCp");
      return ds;
   }

堆栈跟踪的结束是：

Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public javax.sql.DataSource com.company.test.PersistenceJPAConfig.dataSource()] threw exception; nested exception is java.lang.ExceptionInInitializerError
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:181) [:3.2.0.RELEASE]
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:570) [:3.2.0.RELEASE]
    ... 135 more
Caused by: java.lang.ExceptionInInitializerError
    at com.zaxxer.hikari.HikariConfig.<clinit>(HikariConfig.java:77) [:]
    at com.company.test.PersistenceJPAConfig.dataSource(PersistenceJPAConfig.java:115) [:]
    at com.company.test.PersistenceJPAConfig$$EnhancerByCGLIB$$2cad8762.CGLIB$dataSource$3(<generated>) [:]
    at com.company.test.PersistenceJPAConfig$$EnhancerByCGLIB$$2cad8762$$FastClassByCGLIB$$7a8bcfa3.invoke(<generated>) [:]
    at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228) [:3.2.0.RELEASE]
    at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:285) [:3.2.0.RELEASE]
    at com.company.test.PersistenceJPAConfig$$EnhancerByCGLIB$$2cad8762.dataSource(<generated>) [:]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.7.0_11]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [:1.7.0_11]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [:1.7.0_11]
    at java.lang.reflect.Method.invoke(Method.java:601) [:1.7.0_11]
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:160) [:3.2.0.RELEASE]
    ... 136 more
Caused by: java.lang.RuntimeException: javassist.CannotCompileException: by java.lang.LinkageError: loader (instance of  org/jboss/classloader/spi/base/BaseClassLoader): attempted  duplicate class definition for name: "com/zaxxer/hikari/proxy/ProxyFactory"
    at com.zaxxer.hikari.proxy.JavassistProxyFactory.<clinit>(JavassistProxyFactory.java:58) [:]
    ... 148 more
Caused by: javassist.CannotCompileException: by java.lang.LinkageError: loader (instance of  org/jboss/classloader/spi/base/BaseClassLoader): attempted  duplicate class definition for name: "com/zaxxer/hikari/proxy/ProxyFactory"
    at javassist.ClassPool.toClass(ClassPool.java:1099) [:6.1.0.Final]
    at javassist.CtClass.toClass(CtClass.java:1265) [:6.1.0.Final]
    at com.zaxxer.hikari.proxy.JavassistProxyFactory.modifyProxyFactory(JavassistProxyFactory.java:131) [:]
    at com.zaxxer.hikari.proxy.JavassistProxyFactory.<clinit>(JavassistProxyFactory.java:54) [:]
    ... 148 more
Caused by: java.lang.LinkageError: loader (instance of  org/jboss/classloader/spi/base/BaseClassLoader): attempted  duplicate class definition for name: "com/zaxxer/hikari/proxy/ProxyFactory"
    at java.lang.ClassLoader.defineClass1(Native Method) [:1.7.0_11]
    at java.lang.ClassLoader.defineClass(ClassLoader.java:791) [:1.7.0_11]
    at java.lang.ClassLoader.defineClass(ClassLoader.java:634) [:1.7.0_11]
    at sun.reflect.GeneratedMethodAccessor131.invoke(Unknown Source) [:1.7.0_11]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [:1.7.0_11]
    at java.lang.reflect.Method.invoke(Method.java:601) [:1.7.0_11]
    at javassist.ClassPool.toClass2(ClassPool.java:1112) [:6.1.0.Final]
    at javassist.ClassPool.toClass(ClassPool.java:1093) [:6.1.0.Final]
    ... 151 more

Answer 1

我会建议两件事。首先，我建议将HikariCP升级到最新版本1.3.5。

其次，错误似乎与类加载器相关，异常java.lang.ExceptionInInitializerError表示HikariConfig的静态类初始化以某种方式执行两次。只有在有两个引用相同HikariCP jar的类加载器时才能实现这一点。确保HikariCP jar不位于JBoss的全局库目录中，而是位于应用程序的容器库目录中。如果有多个应用程序容器，则HikariCP jar应分别位于每个容器中。

Answer 2

在JBOSS AS 6.1上，这个问题的解决方案是我把HikariCP-1.3.5.jar \ server \ app \ lib和pom.xml设置为provided。当我将应用程序迁移到WildFly 8时，Hikari的工作为compile。

HikariCP - 使用HikariDataSource的链接错误

2 个答案: