我正在尝试将 spring bean 注入 JSF bean,我正在使用 Spring 3.1 和 JSF 2 (Mojarra 2.1.7)
不用多说,我的配置和代码以及以下列出的异常:
学生服务.java:
@Scope(proxyMode=ScopedProxyMode.TARGET_CLASS)
public class StudentsService extends AbstractMaqraaService {
@Override
public Set<Class<?>> getTypes() {
// TODO Auto-generated method stub
return null;
}
public Student registerStudent(Student student) {
return this.store(student);
}
}
StudentRegistrationMBean.java:
@ManagedBean(name="studentRegistrationMBean")
@SessionScoped
public class StudentRegistrationMBean extends AbstractMBean {
private Student student;
@ManagedProperty (value="#{studentsService}")
private StudentsService studentsService;
public StudentRegistrationMBean() {
this.student = new Student();
}
/*Setters and getters omitted here only*/
public String register() {
studentsService.registerStudent(student);
return "manageStudents";
}
}
模块上下文 xml 文件中的 Spring bean:
<bean id="abstractMaqraaService" class="org.tts.maqraa.service.AbstractMaqraaService" abstract="true"/>
<bean id="studentsService" class="org.tts.maqraa.service.StudentsService" lazy-init="default" parent="abstractMaqraaService"/>
面孔-config.xml:
...
<application>
<el-resolver>org.springframework.web.jsf.el.SpringBeanFacesELResolver</el-resolver>
</application>
...
接收:
TRACE [http-bio-8080-exec-3] (SpringBeanELResolver.java:53) - Successfully resolved variable 'studentsService' in Spring BeanFactory
DEBUG [http-bio-8080-exec-3] (AbstractBeanFactory.java:245) - Returning cached instance of singleton bean 'studentsService'
نوار 13, 2012 11:10:45 ص com.sun.faces.application.view.FaceletViewHandlingStrategy handleRenderException
SEVERE: Error Rendering View[/teacher/registerNewStudent.xhtml]
com.sun.faces.mgbean.ManagedBeanCreationException: Unable to set property studentsService for managed bean studentRegistrationMBean
at com.sun.faces.mgbean.ManagedBeanBuilder$BakedBeanProperty.set(ManagedBeanBuilder.java:615)
at com.sun.faces.mgbean.ManagedBeanBuilder.buildBean(ManagedBeanBuilder.java:133)
...
at java.lang.Thread.run(Unknown Source)
Caused by: javax.el.ELException: Cannot convert org.tts.maqraa.service.StudentsService@8f65bc0 of type class $Proxy10 to class org.tts.maqraa.service.StudentsService
at org.apache.el.lang.ELSupport.coerceToType(ELSupport.java:420)
at org.apache.el.ExpressionFactoryImpl.coerceToType(ExpressionFactoryImpl.java:47)
at com.sun.faces.el.ELUtils.coerce(ELUtils.java:536)
at com.sun.faces.mgbean.BeanBuilder$Expression.evaluate(BeanBuilder.java:592)
at com.sun.faces.mgbean.ManagedBeanBuilder$BakedBeanProperty.set(ManagedBeanBuilder.java:606)
... 47 more
ERROR [http-bio-8080-exec-3] (MaqraaExceptionHandler.java:83) - Exception
javax.el.ELException: Cannot convert org.tts.maqraa.service.StudentsService@8f65bc0 of type class $Proxy10 to class org.tts.maqraa.service.StudentsService
at org.apache.el.lang.ELSupport.coerceToType(ELSupport.java:420)
...
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
我在谷歌上做了很多搜索,发现很多问题都和我一样,但没有任何帮助,我希望我能找到我的特殊情况的解决方案!