我正在使用 JBoss 和 eclipselink 開發(fā)一個 maven 項目，我在使用 JBoss 服務(wù)器在 postgresql 中創(chuàng)建索引（通過 JPA）時遇到問題。當 ddl-generation 屬性設(shè)置為“drop-and-create-tables”時，將創(chuàng)建表和索引<property name="eclipselink.ddl-generation" value="drop-and-create-tables"/>但是，當我將此屬性設(shè)置為“create-or-extend-tables”或“create-tables”時，表會被創(chuàng)建和更新，但我的索引不是。<property name="eclipselink.ddl-generation" value="create-or-extend-tables"/>我嘗試在 Glassfish 服務(wù)器上運行相同的代碼，在 Glassfish 上，索引正在創(chuàng)建中。所以問題只發(fā)生在我運行 JBoss 服務(wù)器時（最終，我希望我的項目在 JBoss 服務(wù)器上運行）。這是我的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="Request_PU" transaction-type="JTA"><provider>org.eclipse.persistence.jpa.PersistenceProvider</provider><jta-data-source>jdbc/gid_postges</jta-data-source><class>be.uclouvain.digit.request.models.LogRequest</class><class>be.uclouvain.digit.request.models.LogStatus</class><exclude-unlisted-classes>true</exclude-unlisted-classes><shared-cache-mode>NONE</shared-cache-mode><properties>  <property name="eclipselink.logging.level" value="FINE"/>  <property name="eclipselink.logging.level.sql" value="FINE"/>  <property name="eclipselink.logging.parameters" value="true"/>  <property name="eclipselink.ddl-generation" value="create-or-extend-tables"/>  <property name="eclipselink.deploy-on-startup" value="true"/></properties>這是一個實體示例@Entity@Table(name = "Identity", schema = "digit")@SequenceGenerator(name = "SEQ_Identity", sequenceName = "SEQ_Identity", schema = "digit", allocationSize = 1, initialValue = 500000)@EntityListeners(IdentityListener.class)@Index(columnNames = {"Lastname","Firstname"},name = "IdxName")