IllegalStateException異常：無法將類型LdapTemplate的價值LdapTemplate

Question

我試圖遷移從WebSphere Application Server到JBoss AS Spring的web應用程序，但在部署的時候我遇到了這樣的問題：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 
'org.springframework.security.filterChains': 
Cannot resolve reference to bean 'org.springframework.security.web.DefaultSecurityFilterChain#2' 
while setting bean property 'sourceList' with key [2]; nested exception is org.springframework.beans.factory.BeanCreationException: 
Error creating bean with name 'org.springframework.security.web.DefaultSecurityFilterChain#2': 
Cannot resolve reference to bean 'preAuthenticationFilter' while setting constructor argument with key [3]; 
nested exception is org.springframework.beans.factory.BeanCreationException: 
Error creating bean with name 'preAuthenticationFilter': Injection of autowired dependencies failed; 
nested exception is org.springframework.beans.factory.BeanCreationException: 
Could not autowire field: private com.m.g.utils.WebUtils com.m.g.auth.PreAuthenticationFilter.webUtils; 
nested exception is org.springframework.beans.factory.BeanCreationException: 
Error creating bean with name 'webUtils': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: 
private com.m.g.helper.Delegate com.m.g.utils.WebUtils.Delegate; 
nested exception is org.springframework.beans.factory.BeanCreationException: 
Error creating bean with name 'delegate' defined in URL [file:/workspace/Web/WebContent/WEB-INF/core-context.xml]: 
Cannot resolve reference to bean 'authenticationService' while setting bean property 'authenticationService'; 
nested exception is org.springframework.beans.factory.BeanCreationException: 
Error creating bean with name 'authenticationService' defined in URL [file:/workspace/M-G-Web/WebContent/WEB-INF/core-context.xml]: Initialization of bean failed; 
nested exception is org.springframework.beans.ConversionNotSupportedException: 
Failed to convert property value of type 'org.springframework.ldap.core.LdapTemplate' to required type 'org.springframework.ldap.core.LdapTemplate' for property 'ldapTemplate'; nested exception is java.lang.IllegalStateException: 
Cannot convert value of type [org.springframework.ldap.core.LdapTemplate] to required type [org.springframework.ldap.core.LdapTemplate] for property 'ldapTemplate': no matching editors or conversion strategy found 

的相關部分核心-context.xml中看起來是這樣的：

<bean id="authenticationService" class="com.m.g.serviceimpl.AuthenticationServiceImpl"> 
    <property name="wmbService" ref="wmbService" /> 
    <property name="authenticationDAO" ref="authenticationDAO" /> 
    <property name="customerDAO" ref="customerDAO" /> 
    <property name="ldapTemplate" ref="ldapTemplate" /> 
    </bean> 
... 
<bean id="contextSource" class="org.springframework.ldap.core.support.LdapContextSource"> 
    <property name="url" value="#{systemProperties['ad.write.url']}" /> 
    <property name="base" value="" /> 
    <property name="userDn" value="#{systemProperties['ad.admin.userDn']}" /> 
    <property name="password" value="#{systemProperties['ad.admin.password']}" /> 
</bean> 

<bean id="ldapTemplate" class="org.springframework.ldap.core.LdapTemplate"> 
    <constructor-arg ref="contextSource" /> 
</bean> 

而且AuthenticationServiceImpl.java的相關部分：

@Component("authenticationService") 
public class AuthenticationServiceImpl implements IAuthenticationService { 
private IWMBService wmbService; 

@Autowired 
private IAuthenticationDAO authenticationDAO; 

@Autowired 
private IServiceFactory serviceFactory; 

@Autowired 
private CustomerManagementDAO customerDAO; 

private LdapTemplate ldapTemplate; 

@Autowired 
private IProperties properties; 

我試圖找出爲什麼發生這個錯誤，但我還沒有找到任何工作。這個完全相同的代碼在Websphere下工作，所以我懷疑它就像構建路徑問題。任何幫助深表感謝！

Answer 1

我終於搞清楚了。問題是我的項目中有兩個不同版本的spring-ldap-core，導致LdapTemplate有兩種不同的實現。卸下其中一個罐子解決了問題。