領(lǐng)域事件發(fā)布是一個(gè)領(lǐng)域?qū)ο鬄榱俗屍渌鼘?duì)象知道自己已經(jīng)處理完成某個(gè)操作時(shí)發(fā)出的一個(gè)通知,事件發(fā)布力求從代碼層面讓自身對(duì)象與外部對(duì)象解耦,并減少技術(shù)代碼入侵。
一、 手動(dòng)發(fā)布事件
// 實(shí)體定義 @Entity public class Department implements Serializable { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Integer departmentId; @Enumerated(EnumType.STRING) private State state; } // 事件定義 public class DepartmentEvent { private Department department; private State state; public DepartmentEvent(Department department) { this.department = department; state = department.getState(); } } // 領(lǐng)域服務(wù) @Service public class ApplicationService { @Autowired private ApplicationEventPublisher applicationEventPublisher; @Autowired private DepartmentRepository departmentRepository; @Transactional(rollbackFor = Exception.class) public void departmentAdd(Department department) { departmentRepository.save(department); // 事件發(fā)布 applicationEventPublisher.publishEvent(new DepartmentEvent(department)); } }
另外有需要云服務(wù)器可以了解下創(chuàng)新互聯(lián)建站www.cdcxhl.com,海內(nèi)外云服務(wù)器15元起步,三天無(wú)理由+7*72小時(shí)售后在線,公司持有idc許可證,提供“云服務(wù)器、裸金屬服務(wù)器、高防服務(wù)器、香港服務(wù)器、美國(guó)服務(wù)器、虛擬主機(jī)、免備案服務(wù)器”等云主機(jī)租用服務(wù)以及企業(yè)上云的綜合解決方案,具有“安全穩(wěn)定、簡(jiǎn)單易用、服務(wù)可用性高、性價(jià)比高”等特點(diǎn)與優(yōu)勢(shì),專為企業(yè)上云打造定制,能夠滿足用戶豐富、多元化的應(yīng)用場(chǎng)景需求。