EAR應用程序在Websphere8.5上工作，但拒絕在Websphere Liberty上工作16.0.0.4

Question

我得到繼承EAR application，我需要繼續開發。在Websphere Application Server完整配置文件8.5中，我無法使其在Websphere Liberty 16.0.0.4上工作，但它工作正常。不幸的是（或幸運:)）我的工作站是Macbook Pro，並且WAS Full Profile無法安裝在OSX上（目前無法找到鏈接，但已經完成了一些搜索並找到了足夠的證據），所以我需要在Linux上使用VirtualBox或嘗試在Liberty上運行此應用程序。

最新的解決方案並沒有爲我工作這麼好，我得到以下錯誤：

[ERROR ] CWWJP0012E: The persistence unit name is not specified and a unique persistence unit is not found in the BigEnterpriseAppEAR application and BigEnterpriseAppEJB.jar module. [ERROR ] CWWJP0029E: The server cannot find the persistence unit in the BigEnterpriseAppEJB.jar module and the BigEnterpriseAppEAR application. [ERROR ] CWNEN0035E: The java:comp/env/BigEnterpriseApp reference of type javax.persistence.EntityManager for the DataProvider component in the BigEnterpriseAppEJB.jar module of the BigEnterpriseAppEAR application cannot be resolved. [ERROR ] CNTR0020E: EJB threw an unexpected (non-declared) exception during invocation of method "getDataByOwner" on bean "BeanId(BigEnterpriseAppEAR#BigEnterpriseAppWEB.war#DataAPI, null)". Exception data: javax.ejb.EJBTransactionRolledbackException: nested exception is: javax.ejb.EJBException: The java:comp/env/BigEnterpriseApp reference of type javax.persistence.EntityManager for the DataProvider component in the BigEnterpriseAppEJB.jar module of the BigEnterpriseAppEAR application cannot be resolved.

應用程序是非常簡單的EAR = JPA + EJB + WAR

我不知道哪些配置文件會有幫助，所以只需在評論中寫下要發佈的內容，然後我就可以做到。

預先感謝您。

UPDATE 1：

server.xml文件：

<server description="new server"> 

    <!-- Enable features --> 
    <featureManager> 
     <feature>localConnector-1.0</feature> 
     <feature>servlet-3.1</feature> 
     <feature>ejbLite-3.1</feature> 
     <feature>jndi-1.0</feature> 
     <feature>jaxrs-1.1</feature> 
     <feature>ssl-1.0</feature> 
     <feature>jpa-2.0</feature> 
     <feature>cdi-1.0</feature> 
    </featureManager> 

    <basicRegistry id="basic" realm="BasicRealm"> 
     <!-- <user name="yourUserName" password="" /> --> 
    </basicRegistry> 

    <!-- To access this server from a remote client add a host attribute to the following element, e.g. host="*" --> 
    <httpEndpoint httpPort="9080" httpsPort="9443" id="defaultHttpEndpoint"/> 

    <!-- Automatically expand WAR files and EAR files --> 
    <applicationManager autoExpand="true"/> 


    <applicationMonitor updateTrigger="mbean"/> 

    <library id="DB2JCC4Lib"> 
     <fileset dir="/Users/anatoly/developer/sql_drivers" includes="*.jar"/> 
    </library> 

    <dataSource id="db2_slc" jndiName="jdbc/BEADB" type="javax.sql.DataSource"> 
      <jdbcDriver libraryRef="DB2JCC4Lib"/> 
      <properties.db2.jcc databaseName="beadb" password="********" portNumber="50000" serverName="db2server" user="db2username"/> 
    </dataSource> 

    <keyStore id="defaultKeyStore" password="******"/> 

    <enterpriseApplication id="BigEnterpriseAppEAR" location="BigEnterpriseAppEAR.ear" name="BigEnterpriseAppEAR"/> 
</server> 

persistence.xml文件，位於BigEnterpriseAppJPA>來源>在位於打包的EAR persistence.xml META-INF>的persistence.xml

BigEnterpriseAppEAR - > BigEnterpriseAppJPA.jar - > META-INF - > persistence.xml：

<?xml version="1.0" encoding="UTF-8"?> 
<persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"> 
    <persistence-unit name="BigEnterpriseApp"> 
     <jta-data-source>jdbc/BEADB</jta-data-source> 
     <class>com.bea.entities.System</class> 
     <class>com.bea.entities.Data</class> 
     <class>com.bea.entities.User</class> 
     <class>com.bea.entities.Group</class> 
     <properties> 
      <property name="openjpa.jdbc.Schema" value="BEADB" /> 
      <property name="openjpa.ConnectionRetainMode" value="transaction" /> 
     </properties> 
    </persistence-unit> 
</persistence> 

Answer 1

[ERROR ] CWWJP0012E: The persistence unit name is not specified and a unique persistence unit is not found in the BigEnterpriseAppEAR application and BigEnterpriseAppEJB.jar module.

這將意味着你的persistence.xml根是不是由JPA規範定義的合法位置，第8.2節：

In Java EE environments, the root of a persistence unit must be one of the following:

• an EJB-JAR file
• the WEB-INF/classes directory of a WAR file[87]
• a jar file in the WEB-INF/lib directory of a WAR file
• a jar file in the EAR library directory
• an application client jar file

NOTE: Java Persistence 1.0 supported use of a jar file in the root of the EAR as the root of a persistence unit. This use is no longer supported. Portable applications should use the EAR library directory for this case instead

你的設置似乎試圖利用＃ 4？

BigEnterpriseAppEAR -> BigEnterpriseAppJPA.jar -> META-INF -> persistence.xml

BigEnterpriseAppJPA.jar應置於你的EAR庫目錄中。我相信這將是BigEnterpriseAppEAR/lib目錄默認，但你可以在EAR

還要注意你的/ META-INF/的application.xml配置此，即持久性單元名稱必須是唯一的。確保所有持久性單元名稱不使用相同的名稱。