PROSAGA码农传奇-SO业务编排-如何在不重新启动服务器的情况下刷新更新的实体数据

我在项目中将EclipseLink JPA用作ORM，将Web逻辑10.3用作应用程序服务器。一切正常，直到出现数据刷新错误为止。这是我的实体表行之一更新为新值，但我的实体管理器或JPA没有选择该值的情况。为此，我们只能依靠它重新启动服务器。然后它拿起了价值。这是我的persistence.xml文件，这是我在课堂上使用实体管理器的方式。
<pre><code><persistence-unit name="BasePersistenceUnit" transaction-type="JTA">
 <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
 <jta-data-source>jdbc/CTH_DS</jta-data-source> 
 <class>org.test.partyrequest.model.dataobject.RqstTrc</class>
 <exclude-unlisted-classes>true</exclude-unlisted-classes>

<properties>
 <property name="eclipselink.target-server" value="WebLogic_10" />
 
 <property name="eclipselink.logging.level" value="FINE" />
 <property name="eclipselink.persistence-context.flush-mode" value="COMMIT" />
 <property name="eclipselink.persistence-context.close-on-commit" value="true" />
 <property name="eclipselink.cache.shared.default" value="false" /> 
 </properties>
</persistence-unit>
</code></pre>春季JPA XML文件
<pre><code><context:load-time-weaver aspectj-weaving="on" />

<tx:annotation-driven mode="aspectj" transaction-manager="transactionManager"/>

<bean class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor" />
</code></pre>我的实体
<pre><code>@Entity
@Table（name =“ PRTY_RQST”）公共类PrtyRqst实现了Serializable {

private static final long serialVersionUID = -4679712398918736694L;

@Id
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "PRTY_RQST_PRTYRQSTID_GENERATOR")
@SequenceGenerator(name = "PRTY_RQST_PRTYRQSTID_GENERATOR", allocationSize = 1, sequenceName = "PRTY_RQST_SEQ")
@Column(name = "PRTY_RQST_ID")
private Long prtyRqstId;

@Column(name = "CHLD_RQST_IND")
private String chldRqstInd;

@Column(name = "PARNT_PRTY_RQST_ID")
private BigDecimal parntPrtyRqstId;

@Column(name = "PROCES_REFR")
private String procesRefr;

@Temporal(TemporalType.TIMESTAMP)
@Column(name = "RQST_DT_TM")
private Date rqstDtTm;

@Column(name = "UPDT_BY")
private String updtBy;

// bi-directional many-to-one association to PrtyKey
@OneToMany(mappedBy = "prtyRqst", fetch = FetchType.LAZY, cascade = CascadeType.ALL)
private List<PrtyKey> prtyKeys;

// bi-directional many-to-one association to PrtyRqstHist
@OneToMany(mappedBy = "prtyRqst", fetch = FetchType.LAZY, cascade = CascadeType.ALL)
@OrderBy("rqstDtTm DESC")
private List<PrtyRqstHist> prtyRqstHists;

@OneToOne(mappedBy = "prtyRqst", fetch = FetchType.LAZY, cascade = CascadeType.ALL)
private RqstPayload rqstPayload;

// bi-directional many-to-one association to RqstTrc
@OneToMany(mappedBy = "prtyRqst", fetch = FetchType.LAZY, cascade = CascadeType.ALL)
private List<RqstTrc> rqstTrcs;

// bi-directional many-to-one association to AddtnRqstInfo
@OneToMany(mappedBy = "prtyRqst", fetch = FetchType.LAZY, cascade = CascadeType.ALL)
private List<AddtnRqstInfo> addtnRqstInfos;

// bi-directional many-to-one association to BusnApplc
@ManyToOne(fetch = FetchType.LAZY, cascade = CascadeType.REFRESH)
@JoinColumn(name = "BUSN_APPLC_ID")
private BusnApplc busnApplc;

@ManyToOne(fetch = FetchType.LAZY, cascade = CascadeType.REFRESH)
@JoinColumn(name = "INTN_PROCES_TYP_ID")
private IntnProcesTyp intnProcesTyp;

@ManyToOne(fetch = FetchType.LAZY, cascade = CascadeType.REFRESH)
@JoinColumn(name = "INTN_STATS_ID")
private IntnStat intnStat;

@Column(name = "ORCHESTRATION_ID")
private String orchestrationId;

@ManyToOne(fetch = FetchType.LAZY, cascade = CascadeType.REFRESH)
@JoinColumn(name = "ALLW_CHNL_ID")
private AllwChnl allwChnl;

// bi-directional many-to-one association to RqstTyp
@ManyToOne(fetch = FetchType.LAZY, cascade = CascadeType.REFRESH)
@JoinColumn(name = "RQST_TYP_ID")
private RqstTyp rqstTyp;

@Column(name = "TRACK_RQST_IND")
private String trackRqstInd;

@Temporal(TemporalType.TIMESTAMP)
@Column(name = "SUBMIT_DT_TM")
private Date submitDtTm;

@Temporal(TemporalType.DATE)
@Column(name = "EFFECTIVE_DT")
private Date effectiveDt;

@Temporal(TemporalType.TIMESTAMP)
@Column(name = "RQST_CREATE_DT_TM")
private Date rqstCreateDtTm;
</code></pre>在我的DAO IMPL类中，我有this.persist（prtyRqstDO）;
<pre><code>@Transactional(readOnly = true, propagation=Propagation.REQUIRED)
 private PartyRequestBO createRequest(PartyRequestBO partyRequestBO, boolean isParent) throws RuntimeException {
 if (log.isDebugEnabled()) {
 log.debug("Enter: PartyRequestsDAOImpl:createRequest()");
 }
 partyRequestBO.setOrchestrationID(generateOrchestrationId());
 PrtyRqst prtyRqstDO = PartyRequestEntityMapper.partyRequestMapper(partyRequestBO, isParent, true);
 try {
 this.persist(prtyRqstDO);
 partyRequestBO.setRequestIdentifier(prtyRqstDO.getPrtyRqstId());
 } catch (Exception e) {
 if(log.isDebugEnabled()) {
 log.debug("PartyRequestsDAOImpl:createRequest : " + PartyRequestConstants.UNABLE_TO_INSERT, e);
 }
 throw new PartyRequestDataException(PartyRequestConstants.UNABLE_TO_INSERT, e);
 }
 if (log.isDebugEnabled()) {
 log.debug("Exit: PartyRequestsDAOImpl:createRequest()");
 }
 return partyRequestBO;
 }

@Transactional(readOnly = true, propagation=Propagation.REQUIRED)
public void persist(T entity) {
 if (log.isDebugEnabled()) {
 log.debug("Enter: BaseDAO:persist() : " + entity);
 }
 this.getEntityManager().persist(entity);
 if (log.isDebugEnabled()) {
 log.debug("Exit: BaseDAO:persist()");
 }
}
public EntityManager getEntityManager() {
 if (log.isDebugEnabled()) {
 log.debug("Enter: BaseDAO:getEntityManager() : " + this.entityManager);
 }
 return this.entityManager;
}
</code></pre>这里的问题是，如果我通过后端更新表之一中的行，则我的应用程序容器不会选择更改。谁能告诉我？先感谢您。编辑：谢谢你们俩 我已经根据您的注释修改了以下代码行。
<pre><code>this.entityManager.clear();
this.entityManager.close();
//this.getEntityManager().refresh(entityManager);
</code></pre>在这里，我可以通过后端完成更新值，而无需重新启动服务器。但是问题在于它保留了所有更改的值。例如，我已经将值更改为FulOrderWSA，它正在工作。更改为FulorderWSB，它又可以正常工作。现在我已经为FulOrderWSZ尝试了它不起作用（DB值为FulorderWSB）。最后，我在这里尝试使用FulorderWSA作为数据库的旧值，它不起作用，但对我有用。我注意到它保留了所有数据库更改的值。如何得到这个。我已经为entityManager使用了clear和close。谁可以帮我这个事。谢谢。