SpringBoot整合activiti7学生请假示例

刺骨的言语ヽ痛彻心扉 2022-09-04 10:58 218阅读 0赞

参考博客：[https://blog.csdn.net/weixin\_44096448/article/details/103613377?utm\_medium=distribute.pc\_relevant.none-task-blog-2%7Edefault%7EBlogCommendFromMachineLearnPai2%7Edefault-2.baidujsUnder6&depth\_1-utm\_source=distribute.pc\_relevant.none-task-blog-2%7Edefault%7EBlogCommendFromMachineLearnPai2%7Edefault-2.baidujsUnder6][https_blog.csdn.net_weixin_44096448_article_details_103613377_utm_medium_distribute.pc_relevant.none-task-blog-2_7Edefault_7EBlogCommendFromMachineLearnPai2_7Edefault-2.baidujsUnder6_depth_1-utm_source_distribute.pc_relevant.none-task-blog-2_7Edefault_7EBlogCommendFromMachineLearnPai2_7Edefault-2.baidujsUnder6]

Java版本：1.8

SpringBoot版本<version>2.4.4</version>（SpringBoot和Activit7最好都用最新版本）

<dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
            </dependency>
    
            <dependency>
                <groupId>com.github.xiaoymin</groupId>
                <artifactId>knife4j-spring-boot-starter</artifactId>
                <version>2.0.2</version>
            </dependency>
    
            <dependency>
                <groupId>com.baomidou</groupId>
                <artifactId>mybatis-plus-boot-starter</artifactId>
                <version>3.4.3.1</version>
            </dependency>
    
            <dependency>
                <groupId>p6spy</groupId>
                <artifactId>p6spy</artifactId>
                <version>3.9.1</version>
            </dependency>
    
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid</artifactId>
                <version>1.1.20</version>
            </dependency>
    
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>5.1.47</version>
            </dependency>
    
            <dependency>
                <groupId>org.activiti</groupId>
                <artifactId>activiti-spring-boot-starter</artifactId>
                <version>7.0.0.Beta3</version>
            </dependency>

配置文件

server:
      port: 8080
    spring:
      #Activiti property configuration
      activiti:
        database-schema-update: true
        history-level: full
        db-history-used: true
      datasource:
        driver-class-name: com.p6spy.engine.spy.P6SpyDriver
        url: jdbc:p6spy:mysql://localhost:3306/activiti?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&allowPublicKeyRetrieval=true
        username: root
        password: root
        type: com.alibaba.druid.pool.DruidDataSource

安装actibpm插件![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlbnhpbmdjaGVu_size_16_color_FFFFFF_t_70][]

构建流程文件

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlbnhpbmdjaGVu_size_16_color_FFFFFF_t_70 1][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlbnhpbmdjaGVu_size_16_color_FFFFFF_t_70 2][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlbnhpbmdjaGVu_size_16_color_FFFFFF_t_70 3][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlbnhpbmdjaGVu_size_16_color_FFFFFF_t_70 4][]

复制一份刚刚构建的流程文件，并将后缀名改为bpmn20.xml，打开后将报错的xmlns加上文件顶部的xmln约束

![20210813111424223.png][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlbnhpbmdjaGVu_size_16_color_FFFFFF_t_70 5][]

生成png文件，保存下来放到一起

![watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBA6IuN56m55LmL6LeD_size_20_color_FFFFFF_t_70_g_se_x_16][]

接口

package com.example.mindsa.controller;
    
    import io.swagger.annotations.ApiOperation;
    import lombok.extern.slf4j.Slf4j;
    import org.activiti.engine.RepositoryService;
    import org.activiti.engine.RuntimeService;
    import org.activiti.engine.TaskService;
    import org.activiti.engine.repository.Deployment;
    import org.activiti.engine.runtime.ProcessInstance;
    import org.activiti.engine.task.Task;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.web.bind.annotation.PostMapping;
    import org.springframework.web.bind.annotation.RequestParam;
    import org.springframework.web.bind.annotation.RestController;
    
    import javax.annotation.PostConstruct;
    import java.util.ArrayList;
    import java.util.HashMap;
    import java.util.List;
    import java.util.Map;
    
    
    @RestController
    @Slf4j
    public class TestController {
        @Autowired
        private RepositoryService repositoryService;
    
        @Autowired
        private RuntimeService runtimeService;
    
        @Autowired
        private TaskService taskService;
    
        /**
         * 项目启动部署请假流程引擎。
         */
        @PostConstruct
        public void prepare() {
            // 创建一个部署对象
            Deployment deployment = repositoryService.createDeployment()
                    .name("请假流程")
                    .addClasspathResource("qbhs_bpmn20.xml")
                    .addClasspathResource("qbhs.png")
                    .deploy();
            log.info("部署ID：" + deployment.getId());
            log.info("部署名称：" + deployment.getName());
        }
    
        @ApiOperation("发起流程")
        @PostMapping("startProcess")
        public void startProcess(@RequestParam String student, @RequestParam String teacher) {
            String processDefinitionKey = "test01";
            Map<String, Object> map = new HashMap<>();
    
            //使用UEL 表达式设置
    
            // 学生填写申请单    Assignee：${student}
            map.put("student", student);
    
            // 班主任审批    Assignee：${teacher}
            map.put("teacher", teacher);
    
            ProcessInstance instance = runtimeService.startProcessInstanceByKey(processDefinitionKey, map);
    
            log.info("流程实例ID:" + instance.getId());
            log.info("流程定义ID:" + instance.getProcessDefinitionId());
        }
    
        @ApiOperation("任务查询")
        @PostMapping("searchTask")
        public List<String> searchTask() {
            //流程启动后，各各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。
            List<Task> list = taskService.createTaskQuery()
                    //流程实例key
                    .processDefinitionKey("test01")
                    //查询谁的任务
                    //.taskAssignee("")
                    .list();
            List<String> idList = new ArrayList<String>();
    
            for (Task task : list) {
                idList.add(task.getId());
                log.info("任务ID:" + task.getId());
                log.info("任务名称:" + task.getName());
                log.info("任务的创建时间:" + task.getCreateTime());
                log.info("任务的办理人:" + task.getAssignee());
                log.info("流程实例ID：" + task.getProcessInstanceId());
                log.info("执行对象ID:" + task.getExecutionId());
                log.info("流程定义ID:" + task.getProcessDefinitionId());
            }
            return idList;
    
        }
    
        @ApiOperation("任务处理")
        @PostMapping("disposeTask")
        public void disposeTask(List<String> list) {
            for (String id : list) {
                // 任务id
                taskService.complete(id);
                System.out.println("处理任务id：" + id);
            }
        }
    }

如果启动报错找不到act\_ge\_property表的话就在数据库连接加上

&nullCatalogMeansCurrent=true

例如

jdbc:mysql://localhost:3306/activiti?characterEncoding=UTF-8&nullCatalogMeansCurrent=true&serverTimezone=GMT&useSSL=fals

[https_blog.csdn.net_weixin_44096448_article_details_103613377_utm_medium_distribute.pc_relevant.none-task-blog-2_7Edefault_7EBlogCommendFromMachineLearnPai2_7Edefault-2.baidujsUnder6_depth_1-utm_source_distribute.pc_relevant.none-task-blog-2_7Edefault_7EBlogCommendFromMachineLearnPai2_7Edefault-2.baidujsUnder6]: https://blog.csdn.net/weixin_44096448/article/details/103613377?utm_medium=distribute.pc_relevant.none-task-blog-2~default~BlogCommendFromMachineLearnPai2~default-2.baidujsUnder6&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2~default~BlogCommendFromMachineLearnPai2~default-2.baidujsUnder6
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[20210813111424223.png]: /images/20220829/8c5572fba7bc4eabbe8648c0e9359e72.png
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