要将Spring Boot与Camunda工作流引擎整合起来,你可以按照以下步骤操作:
- 创建一个Spring Boot项目。
- 在pom.xml文件中添加以下依赖项:
xml
<dependency>
<groupId>org.camunda.bpm.springboot</groupId>
<artifactId>camunda-bpm-spring-boot-starter</artifactId>
<version>7.15.0</version>
</dependency>
- 创建一个Camunda配置类,并将其注解为@Configuration:
java
@Configuration
public class CamundaConfig {
}
- 在配置类中注入一个ProcessEngineConfigurationImpl实例,并配置数据库连接:
java
@Configuration
public class CamundaConfig {
@Autowired
private DataSource dataSource;
@Bean
public ProcessEngineConfigurationImpl processEngineConfiguration() {
SpringProcessEngineConfiguration configuration = new SpringProcessEngineConfiguration();
configuration.setDataSource(dataSource);
configuration.setDatabaseSchemaUpdate(ProcessEngineConfiguration.DB_SCHEMA_UPDATE_TRUE);
return configuration;
}
}
- 在配置类中创建一个ProcessEngineFactoryBean实例,并将其注入为ProcessEngine:
java
@Configuration
public class CamundaConfig {
// ...
@Bean
public ProcessEngineFactoryBean processEngineFactoryBean(ProcessEngineConfigurationImpl configuration) {
ProcessEngineFactoryBean factoryBean = new ProcessEngineFactoryBean();
factoryBean.setProcessEngineConfiguration(configuration);
return factoryBean;
}
@Bean
public ProcessEngine processEngine(ProcessEngineFactoryBean factoryBean) throws Exception {
return factoryBean.getObject();
}
}
- 在配置类中创建一个ProcessEngineRestServiceImpl实例,并将其注入为RestService:
java
@Configuration
public class CamundaConfig {
// ...
@Bean
public ProcessEngineRestServiceImpl processEngineRestService(ProcessEngine processEngine) {
ProcessEngineRestServiceImpl restService = new ProcessEngineRestServiceImpl();
restService.setProcessEngine(processEngine);
return restService;
}
@Bean
public RestService restService(ProcessEngineRestServiceImpl restService) {
return restService;
}
}
- 在配置类中创建一个ProcessEngineAuthenticationFilter实例,并将其注入为FilterRegistrationBean:
java
@Configuration
public class CamundaConfig {
// ...
@Bean
public FilterRegistrationBean<ProcessEngineAuthenticationFilter> processEngineAuthenticationFilter() {
FilterRegistrationBean<ProcessEngineAuthenticationFilter> registrationBean = new FilterRegistrationBean<>();
registrationBean.setFilter(new ProcessEngineAuthenticationFilter());
registrationBean.addInitParameter("authentication-provider",
"org.camunda.bpm.engine.rest.security.auth.impl.HttpBasicAuthenticationProvider");
registrationBean.addUrlPatterns("/rest/*");
return registrationBean;
}
}
- 创建一个流程定义和服务类:
java
@Service
public class MyService {
public void startProcess() {
// ...
}
}
- 创建一个REST控制器,并注入服务类:
java
@RestController
public class MyRestController {
@Autowired
private MyService myService;
@PostMapping("/start-process")
public void startProcess() {
myService.startProcess();
}
}
- 运行应用程序,并通过POST请求调用
/start-process
接口来启动流程。
以上是将Spring Boot与Camunda工作流引擎整合的基本步骤。你可以根据具体需求进行更多的配置和定制。