SpringBoot 整合Activiti（一）
阿新 • • 發佈：2019-01-22
最近在學習Activiti工作流，學習過程整理下，方便以後回顧。
我這裡用的Activiti版本是5.22，考慮後面應該會做線上繪製流程圖，而6.0版本網上資訊過少。。。（如下配置6.0也可試用）
專案目錄結構如下：
1、pom.xml配置SpringBoot和Activiti5.22
2、資料來源配置（application.properties）：<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>workFlow</groupId> <artifactId>workFlow</artifactId> <version>0.0.1-SNAPSHOT</version> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <java.version>1.8</java.version> </properties> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.8.RELEASE</version> </parent> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.activiti</groupId> <artifactId>activiti-spring-boot-starter-basic</artifactId> <version>5.22.0</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <scope>runtime</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-jdbc</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <optional>true</optional><!-- optional=true,依賴不會傳遞，該專案依賴devtools；之後依賴myboot專案的專案如果想要使用devtools，需要重新引入 --> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
3、繪製流程圖如下：spring.datasource.url=jdbc:mysql://127.0.0.1:3306/activiti?characterEncoding=utf8&useSSL=true spring.datasource.username=root spring.datasource.password=root spring.datasource.driver-class-name=com.mysql.jdbc.Driver spring.datasource.max-idle=10 spring.datasource.max-wait=10000 spring.datasource.min-idle=5 spring.datasource.initial-size=5 server.context-path=/workFlow server.session.timeout=10 spring.http.encoding.force=true spring.http.encoding.charset=UTF-8 spring.http.encoding.enabled=true server.tomcat.uri-encoding=UTF-8 //埠號 server.port=8081
右鍵以xml編輯器方式開啟流程圖：
檔案內容：
<?xml version="1.0" encoding="UTF-8"?> <definitions xmlns="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:activiti="http://activiti.org/bpmn" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:omgdc="http://www.omg.org/spec/DD/20100524/DC" xmlns:omgdi="http://www.omg.org/spec/DD/20100524/DI" typeLanguage="http://www.w3.org/2001/XMLSchema" expressionLanguage="http://www.w3.org/1999/XPath" targetNamespace="http://www.activiti.org/test"> <process id="demo2" name="My process" isExecutable="true"> <startEvent id="startevent1" name="Start"></startEvent> <userTask id="usertask1" name="請假"></userTask> <userTask id="usertask2" name="審批"></userTask> <endEvent id="endevent1" name="End"></endEvent> <sequenceFlow id="flow1" sourceRef="usertask2" targetRef="endevent1"></sequenceFlow> <sequenceFlow id="flow2" sourceRef="usertask1" targetRef="usertask2"></sequenceFlow> <sequenceFlow id="flow3" sourceRef="startevent1" targetRef="usertask1"></sequenceFlow> </process> <bpmndi:BPMNDiagram id="BPMNDiagram_myProcess"> <bpmndi:BPMNPlane bpmnElement="myProcess" id="BPMNPlane_myProcess"> <bpmndi:BPMNShape bpmnElement="startevent1" id="BPMNShape_startevent1"> <omgdc:Bounds height="35.0" width="35.0" x="130.0" y="180.0"></omgdc:Bounds> </bpmndi:BPMNShape> <bpmndi:BPMNShape bpmnElement="usertask1" id="BPMNShape_usertask1"> <omgdc:Bounds height="55.0" width="105.0" x="271.0" y="170.0"></omgdc:Bounds> </bpmndi:BPMNShape> <bpmndi:BPMNShape bpmnElement="usertask2" id="BPMNShape_usertask2"> <omgdc:Bounds height="55.0" width="105.0" x="471.0" y="170.0"></omgdc:Bounds> </bpmndi:BPMNShape> <bpmndi:BPMNShape bpmnElement="endevent1" id="BPMNShape_endevent1"> <omgdc:Bounds height="35.0" width="35.0" x="690.0" y="180.0"></omgdc:Bounds> </bpmndi:BPMNShape> <bpmndi:BPMNEdge bpmnElement="flow1" id="BPMNEdge_flow1"> <omgdi:waypoint x="576.0" y="197.0"></omgdi:waypoint> <omgdi:waypoint x="690.0" y="197.0"></omgdi:waypoint> </bpmndi:BPMNEdge> <bpmndi:BPMNEdge bpmnElement="flow2" id="BPMNEdge_flow2"> <omgdi:waypoint x="376.0" y="197.0"></omgdi:waypoint> <omgdi:waypoint x="471.0" y="197.0"></omgdi:waypoint> </bpmndi:BPMNEdge> <bpmndi:BPMNEdge bpmnElement="flow3" id="BPMNEdge_flow3"> <omgdi:waypoint x="165.0" y="197.0"></omgdi:waypoint> <omgdi:waypoint x="271.0" y="197.0"></omgdi:waypoint> </bpmndi:BPMNEdge> </bpmndi:BPMNPlane> </bpmndi:BPMNDiagram> </definitions>
新建立的流程一定記得修改流程圖id如下圖，如若流程圖id存在重複，則啟動報錯：
4、java程式碼：
SpringBoot會把常用的服務自動配置注入，使用時直接裝配使用即可：
@SpringBootApplication
public class App {
public static void main(String[] args) throws Exception {
SpringApplication.run(App.class, args);
}
}@RestController
@RequestMapping("/demo")
public class DemoController {
@Autowired
private RepositoryService repositoryService;
@Autowired
private RuntimeService runtimeService;
@Autowired
private TaskService taskService;
@RequestMapping("/firstDemo")
public void firstDemo() {
//根據bpmn檔案部署流程
Deployment deployment = repositoryService.createDeployment().addClasspathResource("demo2.bpmn").deploy();
//獲取流程定義
ProcessDefinition processDefinition = repositoryService.createProcessDefinitionQuery().deploymentId(deployment.getId()).singleResult();
//啟動流程定義，返回流程例項
ProcessInstance pi = runtimeService.startProcessInstanceById(processDefinition.getId());
String processId = pi.getId();
System.out.println("流程建立成功，當前流程例項ID："+processId);
Task task=taskService.createTaskQuery().processInstanceId(processId).singleResult();
System.out.println("第一次執行前，任務名稱："+task.getName());
taskService.complete(task.getId());
task = taskService.createTaskQuery().processInstanceId(processId).singleResult();
System.out.println("第二次執行前，任務名稱："+task.getName());
taskService.complete(task.getId());
task = taskService.createTaskQuery().processInstanceId(processId).singleResult();
System.out.println("task為null，任務執行完畢："+task);
}/**
* 解決亂碼問題
* @author Administrator
*
*/
@Component
public class ShareniuProcessEngineConfigurationConfigurer implements ProcessEngineConfigurationConfigurer {
public void configure(SpringProcessEngineConfiguration processEngineConfiguration) {
processEngineConfiguration.setActivityFontName("宋體");
processEngineConfiguration.setLabelFontName("宋體");
processEngineConfiguration.setAnnotationFontName("宋體");
System.out.println("ShareniuProcessEngineConfigurationConfigurer#############");
System.out.println(processEngineConfiguration.getActivityFontName());
}
}5、執行結果：
訪問http://localhost:8081/workFlow/demo/firstDemo，控制檯即可得到如下結果：
後面會繼續更新Activiti相關內容。
