Camunda Spring-Boot REST 客户端

逃离我推掉我的手 2022-11-15 14:09 288阅读 0赞

# Camunda Spring-Boot REST 客户端 #

github仓库地址： [camunda-rest-client-spring-boot][]

## 1.增加依赖 ##

<properties>
      <camunda-rest-client-spring-boot.version>0.0.3</camunda-rest-client-spring-boot.version>
      <spring-cloud.version>Hoxton.SR2</spring-cloud.version>
    </properties>
    
    <dependencyManagement>
      <dependencies>
        <dependency>
          <groupId>org.springframework.cloud</groupId>
          <artifactId>spring-cloud-dependencies</artifactId>
          <version>${spring-cloud.version}</version>
          <type>pom</type>
          <scope>import</scope>
        </dependency>
      </dependencies>
    </dependencyManagement>
    <dependencies>
        <dependency>
          <groupId>org.camunda.bpm.extension.rest</groupId>
          <artifactId>camunda-rest-client-spring-boot-starter</artifactId>
          <version>${camunda-rest-client-spring-boot.version}</version>
        </dependency>
        <dependency>
          <groupId>org.springframework.cloud</groupId>
          <artifactId>spring-cloud-starter-openfeign</artifactId>
        </dependency>
        <dependency>
          <groupId>io.github.openfeign</groupId>
          <artifactId>feign-httpclient</artifactId>
        </dependency>
    </dependencies>

## 2.配置 ##

在客户端代码中增加配置，使用`@EnableCamundaRestClient`激活`REST client`。

@Configuration
    @EnableCamundaRestClient
    public class MyClientConfiguration { 
    
    }

在工程中的`application.yml`文件中增加`feign`配置。

feign:
      client:
        config:
          remoteRuntimeService:
            url: "http://your-process-engine-host/rest/engine/default/"

## 3.使用 ##

需要访问远程API时，注入远程API。

@Component
    public class MyClient { 
    
        private RuntimeService runtimeService;
    
        public MyClient(@Qualifier("remote") RuntimeService runtimeService) { 
            this.runtimeService = runtimeService;
        }
    
        public void start() { 
            this.runtimeService
                .startProcessInstanceByKey("my_process_key");
        }
    
        public void correlate() { 
            this.runtimeService
                .createMessageCorrelation("message_received")
                .processInstanceBusinessKey("WAIT_FOR_MESSAGE")
                .correlateAllWithResult();
        }
    }

[camunda-rest-client-spring-boot]: https://github.com/camunda/camunda-rest-client-spring-boot/