Activiti7与Spring以及Spring Boot整合开发
Activiti整合Spring
一、Activiti与Spring整合开发
1.1 Activiti与Spring整合的配置
1)、在pom.xml文件引入坐标
如下
- <properties>
- <slf4j.version>1.6.6</slf4j.version>
- <log4j.version>1.2.12</log4j.version>
- </properties>
- <dependencies>
- <dependency>
- <groupId>org.activiti</groupId>
- <artifactId>activiti-engine</artifactId>
- <version>7.0.0.Beta1</version>
- </dependency>
- <dependency>
- <groupId>org.activiti</groupId>
- <artifactId>activiti-spring</artifactId>
- <version>7.0.0.Beta1</version>
- </dependency>
- <dependency>
- <groupId>org.activiti</groupId>
- <artifactId>activiti-bpmn-model</artifactId>
- <version>7.0.0.Beta1</version>
- </dependency>
- <dependency>
- <groupId>org.activiti</groupId>
- <artifactId>activiti-bpmn-converter</artifactId>
- <version>7.0.0.Beta1</version>
- </dependency>
- <dependency>
- <groupId>org.activiti</groupId>
- <artifactId>activiti-json-converter</artifactId>
- <version>7.0.0.Beta1</version>
- </dependency>
- <dependency>
- <groupId>org.activiti</groupId>
- <artifactId>activiti-bpmn-layout</artifactId>
- <version>7.0.0.Beta1</version>
- </dependency>
- <dependency>
- <groupId>org.activiti.cloud</groupId>
- <artifactId>activiti-cloud-services-api</artifactId>
- <version>7.0.0.Beta1</version>
- </dependency>
- <dependency>
- <groupId>ASPectj</groupId>
- <artifactId>aspectjweaver</artifactId>
- <version>1.5.4</version>
- </dependency>
- <dependency>
- <groupId>mysql</groupId>
- <artifactId>mysql-connector-Java</artifactId>
- <version>5.1.40</version>
- </dependency>
- <dependency>
- <groupId>junit</groupId>
- <artifactId>junit</artifactId>
- <version>4.12</version>
- </dependency>
- <dependency>
- <groupId>org.springframework</groupId>
- <artifactId>spring-test</artifactId>
- <version>5.0.7.RELEASE</version>
- </dependency>
- <!– log start –>
- <dependency>
- <groupId>log4j</groupId>
- <artifactId>log4j</artifactId>
- <version>${log4j.version}</version>
- </dependency>
- <dependency>
- <groupId>org.slf4j</groupId>
- <artifactId>slf4j-api</artifactId>
- <version>${slf4j.version}</version>
- </dependency>
- <dependency>
- <groupId>org.slf4j</groupId>
- <artifactId>slf4j-log4j12</artifactId>
- <version>${slf4j.version}</version>
- </dependency>
- <dependency>
- <groupId>org.slf4j</groupId>
- <artifactId>slf4j-nop</artifactId>
- <version>${slf4j.version}</version>
- </dependency>
- <!– log end –>
- <dependency>
- <groupId>org.myBATis</groupId>
- <artifactId>mybatis</artifactId>
- <version>3.4.5</version>
- </dependency>
- <dependency>
- <groupId>commons-dbcp</groupId>
- <artifactId>commons-dbcp</artifactId>
- <version>1.4</version>
- </dependency>
- </dependencies>
- <repositories>
- <repository>
- <id>alfresco</id>
- <name>Activiti Releases</name>
- <url>https://artifacts.alfresco.com/nexus/content/repositories/activiti-releases/</url>
- <releases>
- <enabled>true</enabled>
- </releases>
- </repository>
- </repositories>
在Activiti中核心类的是ProcessEngine流程引擎,与Spring整合就是让Spring来管理ProcessEngine
通过org.activiti.spring.SpringProcessEngineConfiguration 与Spring整合方式来创建ProcessEngine对象。
创建spring与activiti的整合配置文件:activiti-spring.xml(名称不固定)
2)、创建activiti-spring.xml
- <beans xmlns=“http://www.springframework.org/schema/beans”
- xmlns:xsi=“http://www.w3.org/2001/XMLSchema-instance”
- xmlns:tx=“http://www.springframework.org/schema/tx”
- xmlns:aop=“http://www.springframework.org/schema/aop”
- xsi:schemaLocation=“http://www.springframework.org/schema/beans
- http://www.springframework.org/schema/beans/spring-beans.xsd
- http://www.springframework.org/schema/tx
- http://www.springframework.org/schema/tx/spring-tx.xsd
- http://www.springframework.org/schema/aop
- http://www.springframework.org/schema/aop/spring-aop.xsd”>
- <!– 数据源 –>
- <bean id=“dataSource” class=“org.apache.commons.dbcp.BasicDataSource”>
- <property name=“driverClassName” value=“com.mysql.jdbc.Driver”/>
- <property name=“url” value=“jdbc:mysql://localhost:3306/activiti”/>
- <property name=“username” value=“root”/>
- <property name=“password” value=“123456”/>
- <property name=“maxActive” value=“3”/>
- <property name=“maxIdle” value=“1”/>
- </bean>
- <!– 工作流引擎配置bean –>
- <bean id=“processEngineConfiguration” class=“org.activiti.spring.SpringProcessEngineConfiguration”>
- <!– 数据源 –>
- <property name=“dataSource” ref=“dataSource”/>
- <!– 使用spring事务管理器 –>
- <property name=“transactionManager” ref=“transactionManager”/>
- <!– 数据库策略 –>
- <property name=“databaseSchemaUpdate” value=“drop-create”/>
- </bean>
- <!– 流程引擎 –>
- <bean id=“processEngine” class=“org.activiti.spring.ProcessEngineFactoryBean”>
- <property name=“processEngineConfiguration” ref=“processEngineConfiguration”/>
- </bean>
- <!– 资源服务service –>
- <bean id=“repositoryService” factory-bean=“processEngine” factory-method=“getRepositoryService”/>
- <!– 流程运行service –>
- <bean id=“runtimeService” factory-bean=“processEngine” factory-method=“getRuntimeService”/>
- <!– 任务管理service –>
- <bean id=“taskService” factory-bean=“processEngine” factory-method=“getTaskService”/>
- <!– 历史管理service –>
- <bean id=“historyService” factory-bean=“processEngine” factory-method=“getHistoryService”/>
- <!– 事务管理器 –>
- <bean id=“transactionManager” class=“org.springframework.jdbc.datasource.DataSourceTransactionManager”>
- <property name=“dataSource” ref=“dataSource”/>
- </bean>
- <!– 通知 –>
- <tx:advice id=“txAdvice” transaction-manager=“transactionManager”>
- <tx:attributes>
- <!– 传播行为 –>
- <tx:method name=“save*” propagation=“REQUIRED”/>
- <tx:method name=“insert*” propagation=“REQUIRED”/>
- <tx:method name=“delete*” propagation=“REQUIRED”/>
- <tx:method name=“update*” propagation=“REQUIRED”/>
- <tx:method name=“find*” propagation=“SUPPORTS” read-only=“true”/>
- <tx:method name=“get*” propagation=“SUPPORTS” read-only=“true”/>
- </tx:attributes>
- </tx:advice>
- <!– 切面,根据具体项目修改切点配置
- <aop:config proxy-target-class=”true”>
- <aop:advisor advice-ref=”txAdvice”
- pointcut=”execution(*com.itheima.service.impl..(..))”/>
- </aop:config>–>
- </beans>
databaseSchemaUpdate的取值内容:
flase: 默认值。activiti在启动时,会对比数据库表中保存的版本,如果没有表或者版本不匹配,将抛出异常。(生产环境常用)
true: activiti会对数据库中所有表进行更新操作。如果表不存在,则自动创建。(开发时常用)
create_drop: 在activiti启动时创建表,在关闭时删除表(必须手动关闭引擎,才能删除表)。(单元测试常用)
drop-create: 在activiti启动时删除原来的旧表,然后在创建新表(不需要手动关闭引擎)。
1.2 测试Activiti与Spring整合
1)、测试代码
- /**
- 测试activiti与spring整合是否成功
- **/
- @RunWith(SpringJUnit4ClassRunner.class)
- @ContextConfiguration(locations = “classpath:activiti-spring.xml”)
- public class ActivitiTest {
- @Autowired
- private RepositoryService repositoryService;
- @Test
- public void test01(){
- System.out.println(“部署对象:”+repositoryService);
- }
- }
2)、执行流程分析
下面我们一起来分析Activiti与Spring整合加载的过程。
1、加载activiti-spring.xml配置文件
2、加载SpringProcessEngineConfiguration对象,这个对象它需要依赖注入dataSource对象和transactionManager对象。
3、加载ProcessEngineFactoryBean工厂来创建ProcessEngine对象,而ProcessEngineFactoryBean工厂又需要依赖注入processEngineConfiguration对象。
4、processEngine对象来负责创建我们的Service对象,从而简化Activiti的开发过程。
二、Activiti7与SpringBoot整合开发
Activiti7发布正式版之后,它与SpringBoot2.x已经完全支持整合开发。
2.1 SpringBoot整合Activiti7的配置
为了能够实现SpringBoot与Activiti7整合开发,首先我们要引入相关的依赖支持。
在工程的pom.xml文件中引入相关的依赖,其中activiti的依赖是:activiti-spring-boot-starter。
具体依赖如下所示:
- <parent>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-starter-parent</artifactId>
- <version>2.1.0.RELEASE</version>
- </parent>
- <properties>
- <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
- <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
- <java.version>1.8</java.version>
- </properties>
- <dependencies>
- <dependency>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-starter-web</artifactId>
- </dependency>
- <dependency>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-starter-jdbc</artifactId>
- </dependency>
- <dependency>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-starter-test</artifactId>
- </dependency>
- <dependency>
- <groupId>org.activiti</groupId>
- <artifactId>activiti-spring-boot-starter</artifactId>
- <version>7.0.0.Beta2</version>
- </dependency>
- <dependency>
- <groupId>mysql</groupId>
- <artifactId>mysql-connector-java</artifactId>
- <version>5.1.29</version>
- </dependency>
- <dependency>
- <groupId>org.projectlombok</groupId>
- <artifactId>lombok</artifactId>
- </dependency>
- </dependencies>
- <build>
- <plugins>
- <plugin>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-maven-plugin</artifactId>
- </plugin>
- </plugins>
- </build>
通过该pom.xml文件所导入的坐标,我们就可以实现activiti7与Springboot整合。
2.2 SpringBoot的application.yml文件配置
为了能够实现Activiti7生成的表放到Mysql数据库中,需要在配置文件application.yml中添加相关的配置
注意:activiti7默认没有开启数据库历史记录,需要手动配置开启
- spring:
- datasource:
- url: jdbc:mysql:///activiti?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT
- username: root
- password: 123456
- driver–class–name: com.mysql.jdbc.Driver
- activiti:
- #1.flase:默认值。activiti在启动时,对比数据库表中保存的版本,如果没有表或者版本不匹配,将抛出异常
- #2.true: activiti会对数据库中所有表进行更新操作。如果表不存在,则自动创建
- #3.create_drop: 在activiti启动时创建表,在关闭时删除表(必须手动关闭引擎,才能删除表)
- #4.drop-create: 在activiti启动时删除原来的旧表,然后在创建新表(不需要手动关闭引擎)
- database–schema–update: true
- #检测历史表是否存在 activiti7默认没有开启数据库历史记录 启动数据库历史记录
- db–history–used: true
- #记录历史等级 可配置的历史级别有none, activity, audit, full
- #none:不保存任何的历史数据,因此,在流程执行过程中,这是最高效的。
- #activity:级别高于none,保存流程实例与流程行为,其他数据不保存。
- #audit:除activity级别会保存的数据外,还会保存全部的流程任务及其属性。audit为history的默认值。
- #full:保存历史数据的最高级别,除了会保存audit级别的数据外,还会保存其他全部流程相关的细节数据,包括一些流程参数等。
- history–level: full
- #校验流程文件,默认校验resources下的processes文件夹里的流程文件
- check–process–definitions: false
2.3 编写启动类
- package com.itheima;
- import org.springframework.boot.SpringApplication;
- import org.springframework.boot.autoconfigure.SpringBootApplication;
- @SpringBootApplication
- public class ActApplication {
- public static void main(String[] args) {
- SpringApplication.run(ActApplication.class,args);
- }
- }
2.4 添加SpringSecurity安全框架整合配置
因为Activiti7与SpringBoot整合后,默认情况下,集成了SpringSecurity安全框架,这样我们就要去准备SpringSecurity整合进来的相关用户权限配置信息。
SpringBoot的依赖包已经将SpringSecurity的依赖包也添加进项目中。
2.4.1 添加SecurityUtil类
为了能够快速实现SpringSecurity安全框架的配置,所添加的一个组件。
- package com.itheima.utils;
- import org.slf4j.Logger;
- import org.slf4j.LoggerFactory;
- 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 java.util.Collection;
- @Component
- public class SecurityUtil {
- private Logger logger = LoggerFactory.getLogger(SecurityUtil.class);
- @Autowired
- @Qualifier(“myUserDetailsService”)
- 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”);
- }
- logger.info(“> Logged in as: “ + username);
- 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);
- }
- }
这个类可以从我们下载的Activiti7官方提供的Example中找到。
2.4.2 添加DemoApplicationConfig类
在Activiti7官方下载的Example中找到DemoApplicationConfig类,它的作用是为了实现SpringSecurity框架的用户权限的配置,这样我们就可以在系统中使用用户权限信息。
本次项目中基本是在文件中定义出来的用户信息,当然也可以是数据库中查询的用户权限信息。
后面处理流程时用到的任务负责人,需要添加在这里
- package com.itheima.config;
- 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;
- import java.util.Arrays;
- import java.util.List;
- import java.util.stream.Collectors;
- @Configuration
- public class DemoApplicationConfiguration {
- private Logger logger = LoggerFactory.getLogger(DemoApplicationConfiguration.class);
- @Bean
- public UserDetailsService myUserDetailsService() {
- InMemoryUserDetailsManager inMemoryUserDetailsManager = new InMemoryUserDetailsManager();
- //这里添加用户,后面处理流程时用到的任务负责人,需要添加在这里
- String[][] usersGroupsAndRoles = {
- {“jack”, “password”, “ROLE_ACTIVITI_USER”, “GROUP_activitiTeam”},
- {“rose”, “password”, “ROLE_ACTIVITI_USER”, “GROUP_activitiTeam”},
- {“tom”, “password”, “ROLE_ACTIVITI_USER”, “GROUP_activitiTeam”},
- {“other”, “password”, “ROLE_ACTIVITI_USER”, “GROUP_otherTeam”},
- {“system”, “password”, “ROLE_ACTIVITI_USER”},
- {“admin”, “password”, “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();
- }
- }
2.5 创建Bpmn文件
Activiti7可以自动部署流程,前提是在resources目录下,创建一个新的目录processes,用来放置bpmn文件。
创建一个简单的Bpmn流程文件,并设置任务的用户组Candidate Groups。
Candidate Groups中的内容与上面DemoApplicationConfiguration类中出现的用户组名称要保持一致,可以填写:activitiTeam 或者 otherTeam。
这样填写的好处:当不确定到底由谁来负责当前任务的时候,只要是Groups内的用户都可以拾取这个任务
2.6 使用Junit方式测试
- package com.itheima.test;
- import com.itheima.utils.SecurityUtil;
- import org.activiti.api.process.model.ProcessInstance;
- import org.activiti.api.process.model.builders.ProcessPayloadBuilder;
- import org.activiti.api.process.runtime.ProcessRuntime;
- import org.activiti.api.runtime.shared.query.Page;
- import org.activiti.api.runtime.shared.query.Pageable;
- import org.activiti.api.task.model.Task;
- import org.activiti.api.task.model.builders.TaskPayloadBuilder;
- import org.activiti.api.task.runtime.TaskRuntime;
- import org.activiti.engine.repository.ProcessDefinition;
- 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 Actviti7DemoApplicationTests {
- @Autowired
- private ProcessRuntime processRuntime;
- @Autowired
- private TaskRuntime taskRuntime;
- @Autowired
- private SecurityUtil securityUtil;
- @Test
- public void testActBoot(){
- System.out.println(taskRuntime);
- }
- /**
- * 查看流程定义
- */
- @Test
- public void contextLoads() {
- securityUtil.logInAs(“system”);
- Page<org.activiti.api.process.model.ProcessDefinition> processDefinitionPage =
- processRuntime.processDefinitions(Pageable.of(0, 10));
- System.out.println(“可用的流程定义数量:” + processDefinitionPage.getTotalItems());
- for (org.activiti.api.process.model.ProcessDefinition pd : processDefinitionPage.getContent()) {
- System.out.println(“流程定义:” + pd);
- }
- }
- /**
- * 启动流程实例
- */
- @Test
- public void testStartProcess() {
- securityUtil.logInAs(“system”);
- ProcessInstance pi = processRuntime.start(ProcessPayloadBuilder.
- start().
- withProcessDefinitionKey(“myProcess”).
- build());
- System.out.println(“流程实例ID:” + pi.getId());
- }
- /**
- **查询任务,并完成自己的任务
- **/
- @Test
- public void testTask() {
- securityUtil.logInAs(“jack”);
- Page<Task> taskPage=taskRuntime.tasks(Pageable.of(0,10));
- if (taskPage.getTotalItems()>0){
- for (Task task:taskPage.getContent()){
- taskRuntime.claim(TaskPayloadBuilder.
- claim().
- withtaskId(task.getId()).build());
- System.out.println(“任务:”+task);
- taskRuntime.complete(TaskPayloadBuilder.
- complete().
- withTaskId(task.getId()).build());
- }
- }
- Page<Task> taskPage2=taskRuntime.tasks(Pageable.of*(0,10));
- if (taskPage2.getTotalItems()>0){
- System.out.println(“任务:”+taskPage2.getContent());
- }
- }
- }
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