Spring Boot集成Activiti工作流
项目搭建
pom.xml
xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0modelVersion>
<groupId>com.fengye.examplegroupId>
<artifactId>spring-boot-activitiartifactId>
<version>1.0-SNAPSHOTversion>
<packaging>jarpackaging>
<name>spring-boot-activitiname>
<description>Demo project for Spring Bootdescription>
<parent>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-parentartifactId>
<version>1.3.0.RELEASEversion>
parent>
<properties>
<project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
<java.version>1.8java.version>
<activiti.version>5.21.0activiti.version>
properties>
<dependencies>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-webartifactId>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-data-restartifactId>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-data-jpaartifactId>
dependency>
<dependency>
<groupId>mysqlgroupId>
<artifactId>mysql-connector-javaartifactId>
dependency>
<dependency>
<groupId>org.activitigroupId>
<artifactId>activiti-spring-boot-starter-basicartifactId>
<version>${activiti.version}version>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-testartifactId>
<scope>testscope>
dependency>
dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-maven-pluginartifactId>
plugin>
plugins>
build>
project>
application.properties配置
spring.jpa.hibernate.ddl-auto=update
spring.jpa.database=MYSQL
spring.datasource.url=jdbc:mysql://127.0.0.1:3307/spring-boot-activiti?characterEncoding=UTF-8
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
核心代码
实体类
Person.java
package com.fengye.example.model;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.ManyToOne;
/**
* Created by jery on 2016/11/23.
*/
@Entity
public class Person {
@Id
@GeneratedValue
private Long personId;
private String personName;
@ManyToOne(targetEntity = Comp.class)
private Comp comp;
public Person() {
}
public Person(String personName) {
this.personName = personName;
}
public Long getPersonId() {
return personId;
}
public void setPersonId(Long personId) {
this.personId = personId;
}
public String getPersonName() {
return personName;
}
public void setPersonName(String personName) {
this.personName = personName;
}
public Comp getComp() {
return comp;
}
public void setComp(Comp comp) {
this.comp = comp;
}
}
Comp.java
package com.fengye.example.model;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.OneToMany;
import java.util.List;
/**
* Created by jery on 2016/11/23.
*/
@Entity
public class Comp {
@Id
@GeneratedValue
private Long compId;
private String compName;
@OneToMany(mappedBy = "comp", targetEntity = Person.class)
private List people;
public Comp(String compName)
{this.compName = compName;}
public Comp() {
}
public Long getCompId() {
return compId;
}
public void setCompId(Long compId) {
this.compId = compId;
}
public String getCompName() {
return compName;
}
public void setCompName(String compName) {
this.compName = compName;
}
public List getPeople() {
return people;
}
public void setPeople(List people) {
this.people = people;
}
}
DAO
package com.fengye.example.dao;
import com.fengye.example.model.Person;
import org.springframework.data.jpa.repository.JpaRepository;
/**
* Created by jery on 2016/11/23.
*/
public interface PersonRepository extends JpaRepository<Person, Long> {
public Person findByPersonName(String personName);
}
package com.fengye.example.dao;
import com.fengye.example.model.Comp;
import org.springframework.data.jpa.repository.JpaRepository;
public interface CompRepository extends JpaRepository<Comp, Long> {
}
Activiti服务
package com.fengye.example.service;
import org.activiti.engine.RuntimeService;
import org.activiti.engine.TaskService;
import org.activiti.engine.task.Task;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import javax.transaction.Transactional;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* Created by jery on 2016/11/23.
*/
@Service
@Transactional
public class ActivitiService {
//注入为我们自动配置好的服务
@Autowired
private RuntimeService runtimeService;
@Autowired
private TaskService taskService;
//开始流程，传入申请者的id以及公司的id
public void startProcess(Long personId, Long compId) {
Map<String, Object> variables = new HashMap<String, Object>();
variables.put("personId", personId);
variables.put("compId", compId);
runtimeService.startProcessInstanceByKey("joinProcess", variables);
}
//获得某个人的任务别表
public List getTasks(String assignee) {
return taskService.createTaskQuery().taskCandidateUser(assignee).list();
}
//完成任务
public void completeTasks(Boolean joinApproved, String taskId) {
Map<String, Object> taskVariables = new HashMap<String, Object>();
taskVariables.put("joinApproved", joinApproved);
taskService.complete(taskId, taskVariables);
}
}
Service Task服务
package com.fengye.example.service;
import com.fengye.example.dao.CompRepository;
import com.fengye.example.dao.PersonRepository;
import com.fengye.example.model.Comp;
import com.fengye.example.model.Person;
import org.activiti.engine.delegate.DelegateExecution;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.Arrays;
import java.util.List;
/**
* Created by jery on 2016/11/23.
*/
@Service
public class JoinService {
@Autowired
PersonRepository personRepository;
@Autowired
private CompRepository compRepository;
//加入公司操作，可从DelegateExecution获取流程中的变量
public void joinGroup(DelegateExecution execution) {
Boolean bool = (Boolean) execution.getVariable("joinApproved");
if (bool) {
Long personId = (Long) execution.getVariable("personId");
Long compId = (Long) execution.getVariable("compId");
Comp comp = compRepository.findOne(compId);
Person person = personRepository.findOne(personId);
person.setComp(comp);
personRepository.save(person);
System.out.println("加入组织成功");
} else {
System.out.println("加入组织失败");
}
}
//获取符合条件的审批人，演示这里写死，使用应用使用实际代码
public List findUsers(DelegateExecution execution) {
return Arrays.asList("admin", "wtr");
}
}
控制器
package com.fengye.example.controller;
/**
* Created by jery on 2016/11/23.
*/
import com.fengye.example.service.ActivitiService;
import org.activiti.engine.task.Task;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import java.util.ArrayList;
import java.util.List;
@RestController
public class MyRestController {
@Autowired
private ActivitiService myService;
//开启流程实例
@RequestMapping(value = "/process/{personId}/{compId}", method = RequestMethod.GET)
public void startProcessInstance(@PathVariable Long personId, @PathVariable Long compId) {
myService.startProcess(personId, compId);
}
//获取当前人的任务
@RequestMapping(value = "/tasks", method = RequestMethod.GET)
public List getTasks(@RequestParam String assignee) {
List tasks = myService.getTasks(assignee);
List dtos = new ArrayList();
for (Task task : tasks) {
dtos.add(new TaskRepresentation(task.getId(), task.getName()));
}
return dtos;
}
//完成任务
@RequestMapping(value = "/complete/{joinApproved}/{taskId}", method = RequestMethod.GET)
public String complete(@PathVariable Boolean joinApproved, @PathVariable String taskId) {
myService.completeTasks(joinApproved, taskId);
return "ok";
}
//Task的dto
static class TaskRepresentation
{
private String id;
private String name;
public TaskRepresentation(String id, String name) {
this.id = id;
this.name = name;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
} 入口类
import com.fengye.example.dao.CompRepository;
import com.fengye.example.dao.PersonRepository;
import com.fengye.example.model.Comp;
import com.fengye.example.model.Person;
import com.fengye.example.service.ActivitiService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.orm.jpa.EntityScan;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
/**
* Created by jery on 2016/11/23.
*/
@SpringBootApplication
@ComponentScan("com.fengye.example")
@EnableJpaRepositories("com.fengye.example.dao")
@EntityScan("com.fengye.example.model")
public class ActivitiApplication {
@Autowired
private CompRepository compRepository;
@Autowired
private PersonRepository personRepository;
public static void main(String[] args) {
SpringApplication.run(ActivitiApplication.class, args);
}
//初始化模拟数据
@Bean
public CommandLineRunner init(final ActivitiService myService) {
return new CommandLineRunner() {
public void run(String... strings) throws Exception {
if (personRepository.findAll().size() == 0) {
personRepository.save(new Person("wtr"));
personRepository.save(new Person("wyf"));
personRepository.save(new Person("admin"));
}
if (compRepository.findAll().size() == 0) {
Comp group = new Comp("great company");
compRepository.save(group);
Person admin = personRepository.findByPersonName("admin");
Person wtr = personRepository.findByPersonName("wtr");
admin.setComp(group); wtr.setComp(group);
personRepository.save(admin); personRepository.save(wtr);
}
}
};
}
}
演示
启动程序会自动初始化Activiti所用的数据库和我们的业务数据库，并自动发布我们的流程。
此时我们要加入的公司id为1，申请加入的人的id为2，使用PostMan访问http://localhost:8080/process/2/1 此时数据库发生如下变化
此时用户admin和wtr具备审批申请的权利，此时我们访问http://localhost:8080/tasks?assignee=admin 查看admin用户的任务，返回结果为：
- [
- {
- "id":"10",
- "name":"Approval Task"
- }
- ]
我们现在通过访问http://localhost:8080/complete/true/10 完成任务，true为同意(可以选择false)，10为task的id，任务完成后会自动调用Service Task，此时wyf这条记录的comp_compId为更新为当前公司的id。
