我有两个模块的项目:1)Midtier& 2)webapp。
我的中间层具有bean配置文件,该文件对指定的包进行组件扫描以加载bean。我创建的这类类之一是ApplicationContextUtils,它扩展了在jar SPRING-CONTEXT中的ApplicationContextAware接口。 (是的,我已使用注释@Component标记了ApplicationContextUtils类)。该项目的pom已宣布spring-context-3.2.4.RELEASE为依赖jar&我可以在maven依赖项中看到它。我通过运行一个加载所有bean和amp;的测试来单独测试这个类。它跑得很好。
现在,转到webapp,webapp的pom将midtier描述为依赖。我可以看到这个中间层项目被列为webapps中的maven依赖项。将此项目从eclipse部署到Tomcat我遇到以下错误:
org.springframework.beans.factory.CannotLoadBeanClassException: Error loading class [com.jms.testjms.ApplicationContextUtils] for bean with name 'applicationContextUtils' defined in file [F:\Projects\ActiveMQ\JMSProject\target\classes\com\jms\testjms\ApplicationContextUtils.class]: problem with class file or dependent class; nested exception is java.lang.NoClassDefFoundError: org/springframework/context/ApplicationContextAware
.
.
.
Caused by: java.lang.NoClassDefFoundError: org/springframework/context/ApplicationContextAware
(& lot of error chains ..)
我能得到的唯一理由是jar spring-context不在类路径中。但是,当我检查WEB-INF / lib时,当然还有jar spring-context-3.2.4.RELEASE,它是ApplicationContextAware接口的源代码。我不确定为什么spring无法找到这个界面。
我使用的是弹簧3.2.4。我的web.xml使用ContextLoaderListener在启动期间加载资源。该项目是使用maven构建的。
非常感谢任何见解。
来自中间层的POM:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<modelVersion>4.0.0</modelVersion>
<groupId>com.jms.test</groupId>
<artifactId>JmsTest</artifactId>
<version>1.0.0</version>
<packaging>jar</packaging>
<name>Spring Utility</name>
<url>http://www.springframework.org</url>
<description>
<![CDATA[
This project is a minimal jar utility with Spring configuration.
]]>
</description>
<properties>
<maven.test.failure.ignore>true</maven.test.failure.ignore>
<spring.framework.version>3.2.4.RELEASE</spring.framework.version>
</properties> <dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.7</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.framework.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.framework.version}</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.14</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jms</artifactId>
<version>${spring.framework.version}</version>
</dependency>
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-core</artifactId>
<version>5.7.0</version>
</dependency>
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-spring</artifactId>
<version>5.8.0</version>
</dependency>
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-pool</artifactId>
<version>5.8.0</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.5</source>
<target>1.5</target>
</configuration>
</plugin>
</plugins>
</build>
来自webapp的pom:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>JmsProtoWebApp</groupId>
<artifactId>JMSWebApp</artifactId>
<packaging>war</packaging>
<version>1.0.0-SNAPSHOT</version>
<name>JMSWebApp Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<maven.test.failure.ignore>true</maven.test.failure.ignore>
<spring.framework.version>3.2.4.RELEASE</spring.framework.version>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.7</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.framework.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.framework.version}</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.14</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jms</artifactId>
<version>${spring.framework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.framework.version}</version>
</dependency>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>servlet-api</artifactId>
<version>6.0.37</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.jms.test</groupId>
<artifactId>JmsTest</artifactId>
<version>1.0.0</version>
</dependency>
</dependencies>
<build>
<finalName>JMSWebApp</finalName>
</build>
</project>
项目结构&amp;部署程序集: http://imgur.com/zydcqSm
答案 0 :(得分:1)
您的webapp应用程序具有[activemq-spring:5.8.0]依赖关系,其中还包括[org.springframework:stuff:3.1.3.RELEASE]。
当你包含[org.springframework:stuff:3.2.4.RELEASE]时,你的类路径可能会有一些冲突。
你应该使用pom depdendency,同时包括[activemq-spring]以减少不需要的弹簧。