錯誤日誌：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'shiroFilter' defined in ServletContext resource [/WEB-INF/spring/tbm_web_shiro.xml]: Cannot resolve reference to bean 'securityManager' while setting bean property 'securityManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'securityManager' defined in ServletContext resource [/WEB-INF/spring/tbm_web_shiro.xml]: Cannot resolve reference to bean 'myRealm' while setting bean property 'realm'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'myRealm' defined in ServletContext resource [/WEB-INF/spring/tbm_web_shiro.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [com.topsec.tbm.web.auth.TbmRealm]: Constructor threw exception; nested exception is java.lang.NoSuchMethodError: javassist.util.proxy.ProxyFactory.setUseCache(Z)V

at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:328) ~[spring-beans-4.0.1.RELEASE.jar:4.0.1.RELEASE]

at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:107) ~[spring-beans-4.0.1.RELEASE.jar:4.0.1.RELEASE]

原因：jar衝突

org.apache.struts:struts2-core:jar:2.3.16自動引入了javassist:javassist:jar:3.11.0.GA

自己開發的系統中使用了：org.javassist:javassist:jar:3.18.1-GA

檢視這兩個jar中的class基本上一樣。這兩個jar分別屬於不同的group.

看看maven定義：

struts自動引入的jar是這個maven定義：

<dependency>

    <groupId>javassist</groupId>

    <artifactId>

</dependency>

而專案中使用的是：

<dependency>

    <groupId>org.javassist</groupId>

    <artifactId>javassist</artifactId>

</dependency>

解決辦法：mavnen引入strtus時排出javassist這個jar

<dependency>
    <groupId>org.apache.struts</groupId>
    <artifactId>struts2-core</artifactId>
    <exclusions>
        <exclusion>
            <groupId>javassist</groupId>
            <artifactId>javassist</artifactId>
        </exclusion>
    </exclusions>
</dependency>

擴充套件：

排除這個錯誤的方法：

1.使用ctrl+shift+T 查一下這個類的出處：

2.使用mvn dependency:copy-dependencies命令，這樣將在pom.xml所在的目錄下生成target\dependency目錄。

3.檢視步驟2中的目錄可以看到有這個javassist.jar有兩個不同版本的jar,為什麼會有兩個這種jar呢？檢視一下引用樹吧。

4.使用命令mvn dependency:tree > 1.txt輸出下引用的目錄結構

[INFO] +- org.apache.struts:struts2-core:jar:2.3.16:compile

[INFO] |  +- org.apache.struts.xwork:xwork-core:jar:2.3.16:compile

[INFO] |  |  +- asm:asm:jar:3.3:compile

[INFO] |  |  \- asm:asm-commons:jar:3.3:compile

[INFO] |  |     \- asm:asm-tree:jar:3.3:compile

[INFO] |  +- org.freemarker:freemarker:jar:2.3.19:compile

[INFO] |  +- ognl:ognl:jar:3.0.6:compile

[INFO] |  |  \- javassist:javassist:jar:3.11.0.GA:compile

......

[INFO] +- org.hibernate:hibernate-core:jar:4.3.3.Final:compile

[INFO] |  +- org.jboss.logging:jboss-logging:jar:3.1.3.GA:compile

[INFO] |  +- org.jboss.logging:jboss-logging-annotations:jar:1.2.0.Beta1:compile

[INFO] |  +- org.jboss.spec.javax.transaction:jboss-transaction-api_1.2_spec:jar:1.0.0.Final:compile

[INFO] |  +- dom4j:dom4j:jar:1.6.1:compile

[INFO] |  |  \- xml-apis:xml-apis:jar:1.0.b2:compile

[INFO] |  +- org.hibernate.common:hibernate-commons-annotations:jar:4.0.4.Final:compile

[INFO] |  +- org.hibernate.javax.persistence:hibernate-jpa-2.1-api:jar:1.0.0.Final:compile

[INFO] |  +- org.javassist:javassist:jar:3.18.1-GA:compile

5.使用maven的exclusion排除干擾的jar.

<dependency>
    <groupId>org.apache.struts</groupId>
    <artifactId>struts2-core</artifactId>
    <exclusions>
        <exclusion>
            <groupId>javassist</groupId>
            <artifactId>javassist</artifactId>
        </exclusion>
    </exclusions>
</dependency>