Activiti7整合Springboot使用记录

时间：2023-02-15 13:15:11|栏目：JAVA代码|点击：次

0.Springboot项目创建

通过https://start.spring.io/生成纯净的一个springboot工程

1.引入Activiti相关依赖

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

2.启动工程并创建activiti数据库

##activiti7中使用spring security，因此启动工程前，需要加入2个文件支持，2个文件的代码如下：

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;

@Configuration
public class ActivitiConfiguration {
	
	private Logger logger = LoggerFactory.getLogger(ActivitiConfiguration.class);
	
	@Bean(name = "userDetailsService")
    public UserDetailsService myUserDetailsService() {

        InMemoryUserDetailsManager inMemoryUserDetailsManager = new InMemoryUserDetailsManager();

        //用户
        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);
    }

}

##加入activiti7的配置

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/

##启动springboot工程，让系统启动时帮我们建好25张表 2.安装Activiti插件（设计器） ##Idea

file->settings->plugins，然后找actiBPM进行安装。

##流程图中乱码问题先提前设置防止：

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

-Dfile.encoding=utf-8

##进行流程设计

File->new->BpmnFile

设计好后，修改Process1.bpmn成Process1.xml,然后右键export file导出成Process1.jpg，再将Process1.bpmn修改成Process1.bpmn20.xml，最后将2个文件放在process文件夹
在这里插入图片描述

3.流程部署

使用activiti提供的api把流程定义内容存储起来，Activiti执行把流程定义内容存储在数据库中。

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)
@SpringBootTest
public class SpringbootJunitTest {

    //得到RepositoryService实例
    @Autowired
    private RepositoryService repositoryService;

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

        //使用RepositoryService进行部署
        DeploymentBuilder builder = repositoryService.createDeployment();
        builder.addClasspathResource("process/Process1.bpmn20.xml");
        builder.addClasspathResource("process/Process1.jpg");
        builder.name("first_activiti_process");
        Deployment deployment = builder.deploy();

        //输出部署信息
        System.out.println("流程部署id：" + deployment.getId());
        System.out.println("流程部署名称：" + deployment.getName());

        //流程部署id：125098e1-ffd9-11eb-8847-02004c4f4f50
        //流程部署名称：first_activiti_process

    }

}

执行此操作后activiti会将上边代码中指定的bpmn20文件和图片文件保存在activiti数据库。

流程定义部署后操作activiti的3张表

在这里插入图片描述

4.流程实例启动

启动一个流程实例表示开始一次业务流程的运行

  //1.流程实例启动
    @Test
    public void testStartProcess(){
        //根据流程定义Id启动流程
        ProcessInstance processInstance = runtimeService.startProcessInstanceByKey("myProcess_1");

        //输出实例信息
        System.out.println("流程定义id：" + processInstance.getProcessDefinitionId());
        System.out.println("流程实例id：" + processInstance.getId());
        System.out.println("当前活动Id：" + processInstance.getActivityId());

        //流程定义id：myProcess_1:1:12702ed4-ffd9-11eb-8847-02004c4f4f50
        //流程实例id：a9b162aa-ffda-11eb-bad1-02004c4f4f50
        //当前活动Id：null

    }

流程实例启动，将操作以下几个数据库表

act_hi_actinst 流程实例执行历史
act_hi_identitylink 流程的参与用户历史信息
act_hi_procinst 流程实例历史信息
act_hi_taskinst 流程任务历史信息
act_ru_execution 流程执行信息
act_ru_identitylink 流程的参与用户信息
act_ru_task 任务信息

5.任务查询

流程启动后，任务的负责人就可以查询自己当前需要处理的任务，查询出来的任务都是该用户的待办任务。

 //2.任务查询
    //流程启动后，任务的负责人就可以查询自己当前需要处理的任务，查询出来的任务都是该用户的待办任务。
    @Test
    public void testFindPersonalTaskList() {
        //任务负责人
        String assignee = "liuky";

        //根据流程key 和 任务负责人 查询任务
        List<Task> list = taskService.createTaskQuery()
                .processDefinitionKey("myProcess_1")
                .taskAssignee(assignee)
                .list();

        for (Task task : list) {

            System.out.println("流程实例id：" + task.getProcessInstanceId());
            System.out.println("任务id：" + task.getId());
            System.out.println("任务负责人：" + task.getAssignee());
            System.out.println("任务名称：" + task.getName());

        }

        //流程实例id：a9b162aa-ffda-11eb-bad1-02004c4f4f50
        //任务id：a9b5815e-ffda-11eb-bad1-02004c4f4f50
        //任务负责人：liuky
        //任务名称：提交申请

    }

6. 完成任务

 @Test
    public void completTask(){

        //根据流程key和任务的负责人查询任务并选择其中的一个任务处理,这里用的
        //是singleResult返回一条，真实环境中是通过步骤5中查询出所有的任务，然后在页面上选择一个任务进行处理.
        Task task = taskService.createTaskQuery()
                .processDefinitionKey("myProcess_1") //流程Key
                .taskAssignee("liuky")  //要查询的负责人
                .singleResult();
                
        //完成任务,参数：任务id
        taskService.complete(task.getId());

    }

7.流程结束，或流程流转过程中的历史信息查询

   //流程结束，或流程流转过程中的历史信息查询
    @Test
    public void findHistoryInfo(){

        //获取 actinst表的查询对象
        HistoricActivityInstanceQuery instanceQuery = historyService.createHistoricActivityInstanceQuery();
        //查询 actinst表，条件：根据 InstanceId 查询
        instanceQuery.processInstanceId("fb5b7674-ffde-11eb-91f8-02004c4f4f50");
        //增加排序操作,orderByHistoricActivityInstanceStartTime 根据开始时间排序 asc 升序
        instanceQuery.orderByHistoricActivityInstanceStartTime().asc();
        //查询所有内容
        List<HistoricActivityInstance> activityInstanceList = instanceQuery.list();
        //输出结果
        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测试

8.1 流程定义信息查询

查询流程相关信息，包含流程定义，流程部署，流程定义版本

@Test
    public void queryProcessDefinition(){

        //得到ProcessDefinitionQuery对象
        ProcessDefinitionQuery processDefinitionQuery = repositoryService.createProcessDefinitionQuery();

        //查询出当前所有的流程定义
        List<ProcessDefinition> definitionList = processDefinitionQuery.processDefinitionKey("myProcess_1")
                .orderByProcessDefinitionVersion()
                .desc()
                .list();

        //打印结果
        for (ProcessDefinition processDefinition : definitionList) {
            System.out.println("流程定义 id="+processDefinition.getId());
            System.out.println("流程定义 name="+processDefinition.getName());
            System.out.println("流程定义 key="+processDefinition.getKey());
            System.out.println("流程定义 Version="+processDefinition.getVersion());
            System.out.println("流程部署ID ="+processDefinition.getDeploymentId());
        }

    }

8.2 删除流程

  //删除流程
    @Test
    public void deleteDeployment(){

        String deploymentId = "125098e1-ffd9-11eb-8847-02004c4f4f50";

        //删除流程定义，如果该流程定义已有流程实例启动则删除时出错
        repositoryService.deleteDeployment(deploymentId);

        //设置true 级联删除流程定义，即使该流程有流程实例启动也可以删除，设置为false非级别删除方式，如果流程
        //repositoryService.deleteDeployment(deploymentId, true);

    }