<dependency>
    <groupId>org.activiti</groupId>
    <artifactId>activiti-spring-boot-starter</artifactId>
    <version>7.1.0.M6</version>
</dependency>

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;

@Configuration
public 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;

@Component
public 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);
    }

}

server.port=8080
server.servlet.context-path=/activitidemotest

spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/activitidemo?useSSL=false&useUnicode=true&characterEncoding=utf8&serverTimezone=GMT%2B8&allowMultiQueries=true
spring.datasource.username=root
spring.datasource.password=123456

spring.activiti.database-schema-update=true
spring.activiti.db-history-used=true
spring.activiti.history-level=full
spring.activiti.check-process-definitions=false
spring.activiti.deployment-mode=never-fail
spring.activiti.process-definition-location-prefix=classpath:/process/

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)
@SpringBootTest
public class SpringbootJunitTest {

    //得到RepositoryService實(shí)例
    @Autowired
    private RepositoryService repositoryService;

    //0.流程部署，單個(gè)文件部署方式
    @Test
    public void testDeployment(){

        //使用RepositoryService進(jìn)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

    }

}

  //1.流程實(shí)例啟動(dòng)
    @Test
    public void testStartProcess(){
        //根據(jù)流程定義Id啟動(dòng)流程
        ProcessInstance processInstance = runtimeService.startProcessInstanceByKey("myProcess_1");

        //輸出實(shí)例信息
        System.out.println("流程定義id：" + processInstance.getProcessDefinitionId());
        System.out.println("流程實(shí)例id：" + processInstance.getId());
        System.out.println("當(dāng)前活動(dòng)Id：" + processInstance.getActivityId());

        //流程定義id：myProcess_1:1:12702ed4-ffd9-11eb-8847-02004c4f4f50
        //流程實(shí)例id：a9b162aa-ffda-11eb-bad1-02004c4f4f50
        //當(dāng)前活動(dòng)Id：null

    }

act_hi_actinst 流程實(shí)例執(zhí)行歷史
act_hi_identitylink 流程的參與用戶歷史信息
act_hi_procinst 流程實(shí)例歷史信息
act_hi_taskinst 流程任務(wù)歷史信息
act_ru_execution 流程執(zhí)行信息
act_ru_identitylink 流程的參與用戶信息
act_ru_task 任務(wù)信息

 //2.任務(wù)查詢
    //流程啟動(dòng)后，任務(wù)的負(fù)責(zé)人就可以查詢自己當(dāng)前需要處理的任務(wù)，查詢出來(lái)的任務(wù)都是該用戶的待辦任務(wù)。
    @Test
    public void testFindPersonalTaskList() {
        //任務(wù)負(fù)責(zé)人
        String assignee = "liuky";

        //根據(jù)流程key 和 任務(wù)負(fù)責(zé)人 查詢?nèi)蝿?wù)
        List<Task> list = taskService.createTaskQuery()
                .processDefinitionKey("myProcess_1")
                .taskAssignee(assignee)
                .list();

        for (Task task : list) {

            System.out.println("流程實(shí)例id：" + task.getProcessInstanceId());
            System.out.println("任務(wù)id：" + task.getId());
            System.out.println("任務(wù)負(fù)責(zé)人：" + task.getAssignee());
            System.out.println("任務(wù)名稱：" + task.getName());

        }

        //流程實(shí)例id：a9b162aa-ffda-11eb-bad1-02004c4f4f50
        //任務(wù)id：a9b5815e-ffda-11eb-bad1-02004c4f4f50
        //任務(wù)負(fù)責(zé)人：liuky
        //任務(wù)名稱：提交申請(qǐng)

    }

 @Test
    public void completTask(){

        //根據(jù)流程key和任務(wù)的負(fù)責(zé)人查詢?nèi)蝿?wù)并選擇其中的一個(gè)任務(wù)處理,這里用的
        //是singleResult返回一條，真實(shí)環(huán)境中是通過(guò)步驟5中查詢出所有的任務(wù)，然后在頁(yè)面上選擇一個(gè)任務(wù)進(jìn)行處理.
        Task task = taskService.createTaskQuery()
                .processDefinitionKey("myProcess_1") //流程Key
                .taskAssignee("liuky")  //要查詢的負(fù)責(zé)人
                .singleResult();
                
        //完成任務(wù),參數(shù)：任務(wù)id
        taskService.complete(task.getId());

    }

   //流程結(jié)束，或流程流轉(zhuǎn)過(guò)程中的歷史信息查詢
    @Test
    public void findHistoryInfo(){

        //獲取 actinst表的查詢對(duì)象
        HistoricActivityInstanceQuery instanceQuery = historyService.createHistoricActivityInstanceQuery();
        //查詢 actinst表，條件：根據(jù) InstanceId 查詢
        instanceQuery.processInstanceId("fb5b7674-ffde-11eb-91f8-02004c4f4f50");
        //增加排序操作,orderByHistoricActivityInstanceStartTime 根據(jù)開(kāi)始時(shí)間排序 asc 升序
        instanceQuery.orderByHistoricActivityInstanceStartTime().asc();
        //查詢所有內(nèi)容
        List<HistoricActivityInstance> activityInstanceList = instanceQuery.list();
        //輸出結(jié)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("");

        }
    }

@Test
    public void queryProcessDefinition(){

        //得到ProcessDefinitionQuery對(duì)象
        ProcessDefinitionQuery processDefinitionQuery = repositoryService.createProcessDefinitionQuery();

        //查詢出當(dāng)前所有的流程定義
        List<ProcessDefinition> definitionList = processDefinitionQuery.processDefinitionKey("myProcess_1")
                .orderByProcessDefinitionVersion()
                .desc()
                .list();

        //打印結(jié)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());
        }

    }

  //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(shí)例啟動(dòng)則刪除時(shí)出錯(cuò)
        repositoryService.deleteDeployment(deploymentId);

        //設(shè)置true 級(jí)聯(lián)刪除流程定義，即使該流程有流程實(shí)例啟動(dòng)也可以刪除，設(shè)置為false非級(jí)別刪除方式，如果流程
        //repositoryService.deleteDeployment(deploymentId, true);

    }