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我有問題讓JBoss向環境變量值注入bean。這裏是我的豆類:關於EJB和資源注入的問題
package com.topcoder.test; import java.util.ArrayList; import java.util.List; import javax.annotation.Resource; import javax.ejb.EJBContext; import javax.ejb.Remote; import javax.ejb.SessionContext; import javax.ejb.Stateless; import javax.ejb.TransactionManagement; import javax.ejb.TransactionManagementType; import javax.naming.Context; import javax.naming.InitialContext; import javax.naming.NamingException; import javax.persistence.EntityManager; import javax.persistence.PersistenceContext; import javax.persistence.PersistenceContextType; import org.jboss.annotation.ejb.RemoteBinding; import com.topcoder.test.Test; public @Stateless(name = "TestBean") class TestBean implements Test { @Resource(name="managerFile") private String managerFile; public String getManagerFile() { return managerFile; } public String testMethod() { String ret = "the value of managerFile in testMethod() is " + getManagerFile(); return ret; } @PersistenceContext(unitName = "persistenceUnit", type = PersistenceContextType.TRANSACTION) private EntityManager manager; @PersistenceContext(unitName = "persistenceUnit", type = PersistenceContextType.TRANSACTION) public void setEntityManager(EntityManager manager) { this.manager = manager; } public EntityManager getEntityManager() { if (manager == null) { throw new IllegalStateException("EntityManager has not been set on DAO before usage"); } return manager; } @SuppressWarnings("unchecked") public List retrieveAll() throws Exception { EntityManager em = getEntityManager(); List result = em.createQuery("FROM TestEntity").getResultList(); if (result == null) { result = new ArrayList(); } return result; } }
我想managerFile的值由JBoss注入。這裏是我的ejb-jar.xml中:
<enterprise-beans>
<session>
<ejb-name>Test</ejb-name>
<ejb-class>com.topcoder.test.TestBean</ejb-class>
<env-entry>
<env-entry-name>managerFile</env-entry-name>
<env-entry-type>java.lang.String</env-entry-type>
<env-entry-value>com/topcoder/test/TestBean.properties</env-entry-value>
</env-entry>
</session>
</enterprise-beans>
但是,當我我的耳朵部署到JBoss我收到此錯誤信息:
09:07:40495警告[ResourceHandler]不注射managerFile,沒有匹配的ENC注入器env/manager文件發現
我正在運行JBoss 4.2。我究竟做錯了什麼?
謝謝您的回答。我在@Stateless註釋中將Test更改爲TestBean,但我仍然得到相同的錯誤: [ResourceHandler]不注入managerFile,找不到匹配的enc注入器env/managerFile找到 有沒有其他想法? – dcp 2009-05-19 15:26:42