接私活/毕业设计必备，基于SpringBoot+Activiti的Java底层框架的实现

啦啦啦啦啦，富贵同学又开始开坑了，出了个免费的专栏，主要给大家从0基础开始用springBoot集成第三方的插件或者功能，如果这篇专栏能帮到你，一定不要忘了点一个赞哦！！欢迎大家收藏分享

第一步，导入jar包

       <dependency><groupId>org.activiti</groupId><artifactId>activiti-spring-boot-starter-basic</artifactId><version>5.22.0</version></dependency>

这是activiti的核心包，我们还添加其他的jar包

       <dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter</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-starter-web</artifactId></dependency><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>5.1.30</version></dependency>

第二步，编写配置文件

server:port: 8089
spring:datasource:url: jdbc:mysql://localhost:3306/activitidriver-class-name: com.mysql.jdbc.Driverusername: rootpassword: 123456

第三步，创建activiti库

第四步，运行启动类

好，遇到这个时候就出现问题了，这是富贵同学替大家踩坑了，大家记得避开
启动报错Could not find class [org.springframework.boot.autoconfigure.security.SecurityAutoConfiguration]
这个问题是activiti里面本身会依赖Security，所以我们将他排除，我们在启动类上加上

exclude = SecurityAutoConfiguration.class

好的，我们启动，这个时候又碰见另外的一个问题
Caused by: java.io.FileNotFoundException: class path resource [processes/] cannot be resolved to URL because it does not exist
这个是因为activiti在启动的时候会去找bpm文件，会去到默认的processes文件夹中找，
这个时候我们在配置类中加入

  activiti:check-process-definitions: false

这个时候就启动成功啦！

第五步.启动成功之后查看我们的数据库

就会发现25张表已经自动生成了！
如果没有看过富贵同学的第一篇请移步到这个地址查看SpringBoot集成Activiti（一）
第一步，取消yml的配置，因为我们需要创建一个流程

leave.bpmn文件感谢(https://gitee.com/shenzhanwang/Spring-activiti)提供的流程文件

<?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:xsd="http://www.w3.org/2001/XMLSchema" 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="leave" name="My process" isExecutable="true"><userTask id="deptleaderaudit" name="部门领导审批" activiti:assignee="${deptleader}" activiti:candidateGroups="部门经理"></userTask><exclusiveGateway id="exclusivegateway1" name="Exclusive Gateway"></exclusiveGateway><userTask id="hraudit" name="人事审批" activiti:assignee="${hr}" activiti:candidateGroups="人事"></userTask><sequenceFlow id="flow3" name="同意" sourceRef="exclusivegateway1" targetRef="hraudit"><conditionExpression xsi:type="tFormalExpression"><![CDATA[${deptleaderapprove=='true'}]]></conditionExpression></sequenceFlow><userTask id="modifyapply" name="调整申请" activiti:assignee="${applyuserid}"></userTask><sequenceFlow id="flow4" name="拒绝" sourceRef="exclusivegateway1" targetRef="modifyapply"><conditionExpression xsi:type="tFormalExpression"><![CDATA[${deptleaderapprove=='false'}]]></conditionExpression></sequenceFlow><sequenceFlow id="flow6" sourceRef="deptleaderaudit" targetRef="exclusivegateway1"></sequenceFlow><exclusiveGateway id="exclusivegateway2" name="Exclusive Gateway"></exclusiveGateway><sequenceFlow id="flow7" sourceRef="modifyapply" targetRef="exclusivegateway2"></sequenceFlow><sequenceFlow id="flow8" name="重新申请" sourceRef="exclusivegateway2" targetRef="deptleaderaudit"><conditionExpression xsi:type="tFormalExpression"><![CDATA[${reapply=='true'}]]></conditionExpression></sequenceFlow><endEvent id="endevent1" name="End"></endEvent><sequenceFlow id="flow9" name="结束流程" sourceRef="exclusivegateway2" targetRef="endevent1"><conditionExpression xsi:type="tFormalExpression"><![CDATA[${reapply=='false'}]]></conditionExpression></sequenceFlow><exclusiveGateway id="exclusivegateway3" name="Exclusive Gateway"></exclusiveGateway><sequenceFlow id="flow10" sourceRef="hraudit" targetRef="exclusivegateway3"></sequenceFlow><sequenceFlow id="flow11" name="拒绝" sourceRef="exclusivegateway3" targetRef="modifyapply"><conditionExpression xsi:type="tFormalExpression"><![CDATA[${hrapprove=='false'}]]></conditionExpression></sequenceFlow><userTask id="reportback" name="销假" activiti:assignee="${applyuserid}"></userTask><sequenceFlow id="flow12" name="同意" sourceRef="exclusivegateway3" targetRef="reportback"><conditionExpression xsi:type="tFormalExpression"><![CDATA[${hrapprove=='true'}]]></conditionExpression></sequenceFlow><sequenceFlow id="flow13" sourceRef="reportback" targetRef="endevent1"></sequenceFlow><startEvent id="startevent1" name="Start" activiti:initiator="${applyuserid}"></startEvent><sequenceFlow id="flow14" sourceRef="startevent1" targetRef="deptleaderaudit"></sequenceFlow></process><bpmndi:BPMNDiagram id="BPMNDiagram_leave"><bpmndi:BPMNPlane bpmnElement="leave" id="BPMNPlane_leave"><bpmndi:BPMNShape bpmnElement="deptleaderaudit" id="BPMNShape_deptleaderaudit"><omgdc:Bounds height="55.0" width="105.0" x="250.0" y="220.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="exclusivegateway1" id="BPMNShape_exclusivegateway1"><omgdc:Bounds height="40.0" width="40.0" x="535.0" y="227.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="hraudit" id="BPMNShape_hraudit"><omgdc:Bounds height="55.0" width="105.0" x="620.0" y="220.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="modifyapply" id="BPMNShape_modifyapply"><omgdc:Bounds height="55.0" width="105.0" x="503.0" y="310.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="exclusivegateway2" id="BPMNShape_exclusivegateway2"><omgdc:Bounds height="40.0" width="40.0" x="535.0" y="410.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="endevent1" id="BPMNShape_endevent1"><omgdc:Bounds height="35.0" width="35.0" x="890.0" y="413.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="exclusivegateway3" id="BPMNShape_exclusivegateway3"><omgdc:Bounds height="40.0" width="40.0" x="770.0" y="228.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="reportback" id="BPMNShape_reportback"><omgdc:Bounds height="55.0" width="105.0" x="855.0" y="221.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="startevent1" id="BPMNShape_startevent1"><omgdc:Bounds height="35.0" width="35.0" x="140.0" y="230.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNEdge bpmnElement="flow3" id="BPMNEdge_flow3"><omgdi:waypoint x="575.0" y="247.0"></omgdi:waypoint><omgdi:waypoint x="620.0" y="247.0"></omgdi:waypoint><bpmndi:BPMNLabel><omgdc:Bounds height="48.0" width="24.0" x="575.0" y="247.0"></omgdc:Bounds></bpmndi:BPMNLabel></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="flow4" id="BPMNEdge_flow4"><omgdi:waypoint x="555.0" y="267.0"></omgdi:waypoint><omgdi:waypoint x="555.0" y="310.0"></omgdi:waypoint><bpmndi:BPMNLabel><omgdc:Bounds height="48.0" width="24.0" x="555.0" y="267.0"></omgdc:Bounds></bpmndi:BPMNLabel></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="flow6" id="BPMNEdge_flow6"><omgdi:waypoint x="355.0" y="247.0"></omgdi:waypoint><omgdi:waypoint x="535.0" y="247.0"></omgdi:waypoint></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="flow7" id="BPMNEdge_flow7"><omgdi:waypoint x="555.0" y="365.0"></omgdi:waypoint><omgdi:waypoint x="555.0" y="410.0"></omgdi:waypoint></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="flow8" id="BPMNEdge_flow8"><omgdi:waypoint x="535.0" y="430.0"></omgdi:waypoint><omgdi:waypoint x="302.0" y="429.0"></omgdi:waypoint><omgdi:waypoint x="302.0" y="275.0"></omgdi:waypoint><bpmndi:BPMNLabel><omgdc:Bounds height="48.0" width="48.0" x="361.0" y="438.0"></omgdc:Bounds></bpmndi:BPMNLabel></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="flow9" id="BPMNEdge_flow9"><omgdi:waypoint x="575.0" y="430.0"></omgdi:waypoint><omgdi:waypoint x="890.0" y="430.0"></omgdi:waypoint><bpmndi:BPMNLabel><omgdc:Bounds height="48.0" width="48.0" x="659.0" y="437.0"></omgdc:Bounds></bpmndi:BPMNLabel></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="flow10" id="BPMNEdge_flow10"><omgdi:waypoint x="725.0" y="247.0"></omgdi:waypoint><omgdi:waypoint x="770.0" y="248.0"></omgdi:waypoint></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="flow11" id="BPMNEdge_flow11"><omgdi:waypoint x="790.0" y="268.0"></omgdi:waypoint><omgdi:waypoint x="789.0" y="337.0"></omgdi:waypoint><omgdi:waypoint x="608.0" y="337.0"></omgdi:waypoint><bpmndi:BPMNLabel><omgdc:Bounds height="48.0" width="24.0" x="672.0" y="319.0"></omgdc:Bounds></bpmndi:BPMNLabel></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="flow12" id="BPMNEdge_flow12"><omgdi:waypoint x="810.0" y="248.0"></omgdi:waypoint><omgdi:waypoint x="855.0" y="248.0"></omgdi:waypoint><bpmndi:BPMNLabel><omgdc:Bounds height="48.0" width="24.0" x="810.0" y="248.0"></omgdc:Bounds></bpmndi:BPMNLabel></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="flow13" id="BPMNEdge_flow13"><omgdi:waypoint x="907.0" y="276.0"></omgdi:waypoint><omgdi:waypoint x="907.0" y="413.0"></omgdi:waypoint></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="flow14" id="BPMNEdge_flow14"><omgdi:waypoint x="175.0" y="247.0"></omgdi:waypoint><omgdi:waypoint x="250.0" y="247.0"></omgdi:waypoint></bpmndi:BPMNEdge></bpmndi:BPMNPlane></bpmndi:BPMNDiagram>
</definitions>

这是一个简单的请假申请流程

第六步，放入指定的文件夹中之后，我们重新启动启动类

第七步，查看我们的数据表

ACT_RE_PROCDEF中可以查看到我们的流程

至此之后我们的流程就创建完成了，现在来我们的api操作

第八步，由于我们要跟我们的业务连接到一起，所以我们创建一个请假表

CREATE TABLE `leave` (`id` int(11) NOT NULL AUTO_INCREMENT,`process_instance_id` varchar(45) DEFAULT NULL COMMENT '流程表id',`user_id` varchar(20) DEFAULT NULL COMMENT '用户id',`start_time` varchar(45) DEFAULT NULL COMMENT '开始时间',`end_time` varchar(45) DEFAULT NULL COMMENT '结束时间',`leave_type` varchar(45) DEFAULT NULL COMMENT '请假类型',`reason` varchar(400) DEFAULT NULL COMMENT '请假原因',`apply_time` datetime DEFAULT NULL COMMENT '通过时间',`reality_start_time` varchar(45) DEFAULT NULL COMMENT '请假开始时间',`reality_end_time` varchar(45) DEFAULT NULL COMMENT '请假结束时间',PRIMARY KEY (`id`) USING BTREE
) ENGINE=InnoDB AUTO_INCREMENT=27 DEFAULT CHARSET=utf8 ROW_FORMAT=DYNAMIC COMMENT='请假表';

第九步，集成底层框架

对了，我们没有数据库框架，这里我们使用mybatisPlusPro来作为底层框架

第十步，创建controller等类

import com.wangfugui.activiti.dao.LeaveDO;
import com.wangfugui.activiti.service.LeaveService;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;/*** @author MaSiyi* @version 1.0.0 2021/12/2* @since JDK 1.8.0*/
@RestController
@RequestMapping("/leave")
public class LeaveController extends BaseController<LeaveService, LeaveDO>{}

import com.baomidou.mybatisplus.extension.service.IService;
import com.wangfugui.activiti.dao.LeaveDO;/*** @author MaSiyi* @version 1.0.0 2021/12/2* @since JDK 1.8.0*/
public interface LeaveService extends IService<LeaveDO> {}


import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.wangfugui.activiti.dao.LeaveDO;
import com.wangfugui.activiti.dao.mapper.LeaveMapper;
import com.wangfugui.activiti.service.LeaveService;
import org.springframework.stereotype.Service;/*** @author MaSiyi* @version 1.0.0 2021/12/2* @since JDK 1.8.0*/
@Service
public class LeaveServiceImpl extends ServiceImpl<LeaveMapper, LeaveDO> implements LeaveService {}
```java
hellow啊，靓仔，有没有看过前面的内容啊？
请移步到前面的内容去看（一）（二）的内容
接下来我们开始和我们的业务结合到一起。

还是先回顾一下上期内容，上期有个遗留的问题，就是mabatis jar包会冲突，所以我们

       <dependency><groupId>org.activiti</groupId><artifactId>activiti-spring-boot-starter-basic</artifactId><version>5.22.0</version><exclusions><exclusion><groupId>org.mybatis</groupId><artifactId>mybatis</artifactId></exclusion></exclusions></dependency>

第十一步，好的，为了接下来方便接口的测试，我们使用swagger来快速搭建

 <!--swagger--><dependency><!--添加Swagger依赖 --><groupId>io.springfox</groupId><artifactId>springfox-swagger2</artifactId><version>2.7.0</version></dependency><dependency><!--添加Swagger-UI依赖 --><groupId>io.springfox</groupId><artifactId>springfox-swagger-ui</artifactId><version>2.7.0</version></dependency><!--swagger-->

第十二步，编写controller类

import com.wangfugui.activiti.dao.LeaveVo;
import com.wangfugui.activiti.dao.Leaves;
import com.wangfugui.activiti.dao.dto.HandleDto;
import com.wangfugui.activiti.dao.dto.UpcomingDto;
import com.wangfugui.activiti.service.LeaveService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;import java.util.List;/*** @author MaSiyi* @version 1.0.0 2021/12/2* @since JDK 1.8.0*/
@RestController
@RequestMapping("/leave")
@Api(tags = "请假")
public class LeaveController {@Autowiredprotected LeaveService leaveService;@PostMapping("/startLeave")@ApiOperation("发起一个请假流程")public String startLeave(@RequestBody Leaves leave) {return leaveService.startLeave(leave);}@PostMapping("/upcoming")@ApiOperation("获取待办列表")public List<LeaveVo> listTask(@RequestBody UpcomingDto upcomingDto) {return leaveService.upcoming(upcomingDto);}@PostMapping("/handle")@ApiOperation("处理流程")public String handle(@RequestBody HandleDto handleDto) {return leaveService.handle(handleDto);}}

这次我们先来个简单的创建流程，获取待办流程，审批流程
所以我们就看到了这三个接口

第十三步，我们进入到实现类中查看

import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.wangfugui.activiti.dao.LeaveVo;
import com.wangfugui.activiti.dao.Leaves;
import com.wangfugui.activiti.dao.dto.HandleDto;
import com.wangfugui.activiti.dao.dto.UpcomingDto;
import com.wangfugui.activiti.dao.mapper.LeaveMapper;
import com.wangfugui.activiti.service.LeaveService;
import org.activiti.engine.IdentityService;
import org.activiti.engine.RuntimeService;
import org.activiti.engine.TaskService;
import org.activiti.engine.runtime.ProcessInstance;
import org.activiti.engine.task.Task;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.UUID;/*** @author MaSiyi* @version 1.0.0 2021/12/2* @since JDK 1.8.0*/
@Service
public class LeaveServiceImpl extends ServiceImpl<LeaveMapper, Leaves> implements LeaveService {@Autowiredprivate RuntimeService runtimeservice;@Autowiredprivate IdentityService identityservice;@Autowiredprivate TaskService taskservice;/*** 开启一个流程** @param leave* @Param: [leave]* @return: org.activiti.engine.runtime.ProcessInstance* @Author: MaSiyi* @Date: 2021/12/3*/@Overridepublic String startLeave(Leaves leave) {leave.setId(UUID.randomUUID().toString().substring(0, 8));//设置用户identityservice.setAuthenticatedUserId(leave.getUserId());//使用leaveapply表的主键作为businesskey,连接业务数据和流程数据String businesskey = String.valueOf(leave.getId());//发起请假流程Map<String, Object> map = new HashMap<>();//下个步骤处理人map.put("deptleader", "Tom");ProcessInstance processInstance = runtimeservice.startProcessInstanceByKey("leave", businesskey, map);String instanceid = processInstance.getId();//关联流程表leave.setProcessInstanceId(instanceid);this.save(leave);return "申请成功";}/*** 获取待办列表** @param upcomingDto* @Param: [upcomingDto]* @return: java.util.List<com.wangfugui.activiti.dao.Leaves>* @Author: MaSiyi* @Date: 2021/12/3*/@Overridepublic List<LeaveVo> upcoming(UpcomingDto upcomingDto) {List<LeaveVo> leaves = new ArrayList<>();// 使用任务候选人查询待办列表List<Task> tasks = taskservice.createTaskQuery().taskAssignee(upcomingDto.getUsername()).taskName("部门领导审批").listPage(upcomingDto.getPage(), upcomingDto.getSize());for (Task task : tasks) {String instanceId = task.getProcessInstanceId();//查询正在运行的taskProcessInstance processInstance = runtimeservice.createProcessInstanceQuery().processInstanceId(instanceId).singleResult();String businessKey = processInstance.getBusinessKey();Leaves leave = this.getById(businessKey);LeaveVo leaveVo = new LeaveVo();BeanUtils.copyProperties(leave,leaveVo);leaveVo.setTaskId(task.getId());leaves.add(leaveVo);}return leaves;}/*** 审批任务* @Param: [taskid]* @return: java.lang.String* @Author: MaSiyi* @Date: 2021/12/3*/@Overridepublic String handle(HandleDto handleDto) {//完成指定任务taskservice.claim(handleDto.getTaskId(), handleDto.getUserName());//进行下一个任务Map<String, Object> variables = new HashMap<String, Object>();variables.put("deptleaderapprove", handleDto.getApprove());variables.put("hr", handleDto.getNextUserNam());taskservice.complete(handleDto.getTaskId(), variables);return "处理成功";}
}

这三个的解释已经写在代码里面啦，大家可以去看看注释

第十四步，我们来看一下我们的测试

发起一个流程

查询我们的待办

处理我们的待办

好了，今天的简单的基本方法就到这里了
下一篇介绍查看历史流程等的集成
今天我们来讲一下历史流程

第十五步首先我们要知道activiti中历史Service是`HistoryService`

所以我们第一步就将HistoryService注入进来

第十六步，编写获取历史流程方法

   @GetMapping("/myleave")@ApiOperation("我发起的请假流程")public List<LeaveVo> myleave(@RequestParam String userId) {return leaveService.myleave(userId);}

这个接口是根据userId获取发起的请假流程

    @GetMapping("/getHistory")@ApiOperation("获取历史流程信息")public HistoricProcessInstance getHistory(@RequestParam String procInstId) {return leaveService.getHiProcByProcInstId(procInstId);}

这个接口是什么呢 procInstId又是什么？

第三个接口

    @GetMapping("/getHiProcByProcKeyAndBusinessID")@ApiOperation("获取历史任务")public HistoricProcessInstance getHiProcByProcKeyAndBusinessID(@RequestParam String procKey, @RequestParam String businessID) {return leaveService.getHiProcByProcKeyAndBusinessID(procKey, businessID);}

procKey和businessID又是什么？

businessID是我们的业务主键

关联在这张表中

好了，富贵同学手敲不容易，整整两万个字符，希望能帮助到大家。完整代码请移至SpringBoot+Activiti 查看
希望大家点个赞和关注，谢谢大家