目錄0.Springboot項目創建1.引入Activiti相關依賴2.啟動工程并創建activiti數據庫3.流程部署4.流程實例啟動5.任務查詢6. 完成任務7.流程結束，或流程流轉過程中的歷史信息查詢8.其他Api測試8.1 流程定義信息查詢8.2 刪除流程9.demo源碼下載0.Springboot項目創建

通過https://start.spring.io/生成純凈的一個springboot工程

1.引入Activiti相關依賴

<dependency> <groupId>org.activiti</groupId> <artifactId>activiti-spring-boot-starter</artifactId> <version>7.1.0.M6</version></dependency>2.啟動工程并創建activiti數據庫

##activiti7中使用spring security，因此啟動工程前，需要加入2個文件支持，2個文件的代碼如下：

package cn.gzsendi.activitidemotest.config;import java.util.Arrays;import java.util.List;import java.util.stream.Collectors;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import org.springframework.security.core.authority.SimpleGrantedAuthority;import org.springframework.security.core.userdetails.User;import org.springframework.security.core.userdetails.UserDetailsService;import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;import org.springframework.security.crypto.password.PasswordEncoder;import org.springframework.security.provisioning.InMemoryUserDetailsManager;@Configurationpublic class ActivitiConfiguration {private Logger logger = LoggerFactory.getLogger(ActivitiConfiguration.class);@Bean(name = 'userDetailsService') public UserDetailsService myUserDetailsService() {InMemoryUserDetailsManager inMemoryUserDetailsManager = new InMemoryUserDetailsManager();//用戶String[][] usersGroupsAndRoles = {{'hefy', '123456', 'ROLE_ACTIVITI_USER'},{'liujh', '123456', 'ROLE_ACTIVITI_ADMIN'},{'liuky', '123456', 'ROLE_ACTIVITI_USER'},{'admin', '123456', 'ROLE_ACTIVITI_ADMIN'},};for (String[] user : usersGroupsAndRoles) { List<String> authoritiesStrings = Arrays.asList(Arrays.copyOfRange(user, 2, user.length)); logger.info('> Registering new user: ' + user[0] + ' with the following Authorities[' + authoritiesStrings + ']'); inMemoryUserDetailsManager.createUser(new User(user[0], passwordEncoder().encode(user[1]), authoritiesStrings.stream().map(s -> new SimpleGrantedAuthority(s)).collect(Collectors.toList())));}return inMemoryUserDetailsManager; }@Bean public PasswordEncoder passwordEncoder() {return new BCryptPasswordEncoder(); }}

package cn.gzsendi.activitidemotest.utils;import java.util.Collection;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.beans.factory.annotation.Qualifier;import org.springframework.security.core.Authentication;import org.springframework.security.core.GrantedAuthority;import org.springframework.security.core.context.SecurityContextHolder;import org.springframework.security.core.context.SecurityContextImpl;import org.springframework.security.core.userdetails.UserDetails;import org.springframework.security.core.userdetails.UserDetailsService;import org.springframework.stereotype.Component;import javax.annotation.Resource;@Componentpublic class SecurityUtil {@Autowired @Qualifier('userDetailsService') private UserDetailsService userDetailsService;public void logInAs(String username) {UserDetails user = userDetailsService.loadUserByUsername(username);if (user == null) { throw new IllegalStateException('User ' + username + ' doesn’t exist, please provide a valid user');}SecurityContextHolder.setContext(new SecurityContextImpl(new Authentication() { @Override public Collection<? extends GrantedAuthority> getAuthorities() {return user.getAuthorities(); } @Override public Object getCredentials() {return user.getPassword(); } @Override public Object getDetails() {return user; } @Override public Object getPrincipal() {return user; } @Override public boolean isAuthenticated() {return true; } @Override public void setAuthenticated(boolean isAuthenticated) throws IllegalArgumentException { } @Override public String getName() {return user.getUsername(); }}));org.activiti.engine.impl.identity.Authentication.setAuthenticatedUserId(username); }}

##加入activiti7的配置

server.port=8080server.servlet.context-path=/activitidemotestspring.datasource.driver-class-name=com.mysql.cj.jdbc.Driverspring.datasource.url=jdbc:mysql://localhost:3306/activitidemo?useSSL=false&useUnicode=true&characterEncoding=utf8&serverTimezone=GMT%2B8&allowMultiQueries=truespring.datasource.username=rootspring.datasource.password=123456spring.activiti.database-schema-update=truespring.activiti.db-history-used=truespring.activiti.history-level=fullspring.activiti.check-process-definitions=falsespring.activiti.deployment-mode=never-failspring.activiti.process-definition-location-prefix=classpath:/process/

##啟動springboot工程，讓系統啟動時幫我們建好25張表 2.安裝Activiti插件（設計器） ##Idea

file->settings->plugins，然后找actiBPM進行安裝。

##流程圖中亂碼問題先提前設置防止：

修改idea64.exe.vmoptions文件，在文件中加上如下，然后重啟Idea

-Dfile.encoding=utf-8

##進行流程設計

File->new->BpmnFile

設計好后，修改Process1.bpmn成Process1.xml,然后右鍵export file導出成Process1.jpg，再將Process1.bpmn修改成Process1.bpmn20.xml，最后將2個文件放在process文件夾

3.流程部署

使用activiti提供的api把流程定義內容存儲起來，Activiti執行把流程定義內容存儲在數據庫中。

package cn.gzsendi.activitidemotest;/** * Created by jxlhl on 2021/8/18. */import org.activiti.engine.RepositoryService;import org.activiti.engine.repository.Deployment;import org.activiti.engine.repository.DeploymentBuilder;import org.junit.Test;import org.junit.runner.RunWith;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.boot.test.context.SpringBootTest;import org.springframework.test.context.junit4.SpringRunner;@RunWith(SpringRunner.class)@SpringBootTestpublic class SpringbootJunitTest { //得到RepositoryService實例 @Autowired private RepositoryService repositoryService; //0.流程部署，單個文件部署方式 @Test public void testDeployment(){//使用RepositoryService進行部署DeploymentBuilder builder = repositoryService.createDeployment();builder.addClasspathResource('process/Process1.bpmn20.xml');builder.addClasspathResource('process/Process1.jpg');builder.name('first_activiti_process');Deployment deployment = builder.deploy();//輸出部署信息System.out.println('流程部署id：' + deployment.getId());System.out.println('流程部署名稱：' + deployment.getName());//流程部署id：125098e1-ffd9-11eb-8847-02004c4f4f50//流程部署名稱：first_activiti_process }}

執行此操作后activiti會將上邊代碼中指定的bpmn20文件和圖片文件保存在activiti數據庫。

流程定義部署后操作activiti的3張表

4.流程實例啟動

啟動一個流程實例表示開始一次業務流程的運行

//1.流程實例啟動 @Test public void testStartProcess(){//根據流程定義Id啟動流程ProcessInstance processInstance = runtimeService.startProcessInstanceByKey('myProcess_1');//輸出實例信息System.out.println('流程定義id：' + processInstance.getProcessDefinitionId());System.out.println('流程實例id：' + processInstance.getId());System.out.println('當前活動Id：' + processInstance.getActivityId());//流程定義id：myProcess_1:1:12702ed4-ffd9-11eb-8847-02004c4f4f50//流程實例id：a9b162aa-ffda-11eb-bad1-02004c4f4f50//當前活動Id：null }

流程實例啟動，將操作以下幾個數據庫表

act_hi_actinst 流程實例執行歷史act_hi_identitylink 流程的參與用戶歷史信息act_hi_procinst 流程實例歷史信息act_hi_taskinst 流程任務歷史信息act_ru_execution 流程執行信息act_ru_identitylink 流程的參與用戶信息act_ru_task 任務信息5.任務查詢

流程啟動后，任務的負責人就可以查詢自己當前需要處理的任務，查詢出來的任務都是該用戶的待辦任務。

//2.任務查詢 //流程啟動后，任務的負責人就可以查詢自己當前需要處理的任務，查詢出來的任務都是該用戶的待辦任務。 @Test public void testFindPersonalTaskList() {//任務負責人String assignee = 'liuky';//根據流程key 和 任務負責人 查詢任務List<Task> list = taskService.createTaskQuery().processDefinitionKey('myProcess_1').taskAssignee(assignee).list();for (Task task : list) { System.out.println('流程實例id：' + task.getProcessInstanceId()); System.out.println('任務id：' + task.getId()); System.out.println('任務負責人：' + task.getAssignee()); System.out.println('任務名稱：' + task.getName());}//流程實例id：a9b162aa-ffda-11eb-bad1-02004c4f4f50//任務id：a9b5815e-ffda-11eb-bad1-02004c4f4f50//任務負責人：liuky//任務名稱：提交申請 }6. 完成任務

@Test public void completTask(){//根據流程key和任務的負責人查詢任務并選擇其中的一個任務處理,這里用的//是singleResult返回一條，真實環境中是通過步驟5中查詢出所有的任務，然后在頁面上選擇一個任務進行處理.Task task = taskService.createTaskQuery().processDefinitionKey('myProcess_1') //流程Key.taskAssignee('liuky') //要查詢的負責人.singleResult();//完成任務,參數：任務idtaskService.complete(task.getId()); }7.流程結束，或流程流轉過程中的歷史信息查詢

//流程結束，或流程流轉過程中的歷史信息查詢 @Test public void findHistoryInfo(){//獲取 actinst表的查詢對象HistoricActivityInstanceQuery instanceQuery = historyService.createHistoricActivityInstanceQuery();//查詢 actinst表，條件：根據 InstanceId 查詢instanceQuery.processInstanceId('fb5b7674-ffde-11eb-91f8-02004c4f4f50');//增加排序操作,orderByHistoricActivityInstanceStartTime 根據開始時間排序 asc 升序instanceQuery.orderByHistoricActivityInstanceStartTime().asc();//查詢所有內容List<HistoricActivityInstance> activityInstanceList = instanceQuery.list();//輸出結果for (HistoricActivityInstance hi : activityInstanceList) { System.out.println(''); System.out.println('===================-==============='); System.out.println(hi.getStartTime()); System.out.println(hi.getAssignee()); System.out.println(hi.getActivityId()); System.out.println(hi.getActivityName()); System.out.println(hi.getProcessDefinitionId()); System.out.println(hi.getProcessInstanceId()); System.out.println('===================-==============='); System.out.println('');} }8.其他Api測試8.1 流程定義信息查詢

查詢流程相關信息，包含流程定義，流程部署，流程定義版本

@Test public void queryProcessDefinition(){//得到ProcessDefinitionQuery對象ProcessDefinitionQuery processDefinitionQuery = repositoryService.createProcessDefinitionQuery();//查詢出當前所有的流程定義List<ProcessDefinition> definitionList = processDefinitionQuery.processDefinitionKey('myProcess_1').orderByProcessDefinitionVersion().desc().list();//打印結果for (ProcessDefinition processDefinition : definitionList) { System.out.println('流程定義 id='+processDefinition.getId()); System.out.println('流程定義 name='+processDefinition.getName()); System.out.println('流程定義 key='+processDefinition.getKey()); System.out.println('流程定義 Version='+processDefinition.getVersion()); System.out.println('流程部署ID ='+processDefinition.getDeploymentId());} }8.2 刪除流程

//刪除流程 @Test public void deleteDeployment(){String deploymentId = '125098e1-ffd9-11eb-8847-02004c4f4f50';//刪除流程定義，如果該流程定義已有流程實例啟動則刪除時出錯repositoryService.deleteDeployment(deploymentId);//設置true 級聯刪除流程定義，即使該流程有流程實例啟動也可以刪除，設置為false非級別刪除方式，如果流程//repositoryService.deleteDeployment(deploymentId, true); }9.demo源碼下載

github: https://github.com/jxlhljh/activitidemotest.gitgitee: https://gitee.com/jxlhljh/activitidemotest.git

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