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Activiti7与Spring以及Spring Boot整合开发

目录
  • 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
      • 2)、创建activiti-spring.xml
    • 1.2 测试Activiti与Spring整合
      • 1)、测试代码
      • 2)、执行流程分析
  • 二、Activiti7与SpringBoot整合开发
    • 2.1 SpringBoot整合Activiti7的配置
      • 2.2 SpringBoot的application.yml文件配置
        • 2.3 编写启动类
          • 2.4 添加SpringSecurity安全框架整合配置
            • 2.4.1 添加SecurityUtil类
            • 2.4.2 添加DemoApplicationConfig类
          • 2.5 创建Bpmn文件
            • 2.6 使用Junit方式测试

            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</arjavascripttifactId>
                    <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="dataSohttp://www.devze.comurce"/>
                </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_dropaTOMcpmhRl: 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开发者_JAVA 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>
                </deandroidpendency>
            </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

            Activiti7与Spring以及Spring Boot整合开发

            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.apiandroid.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());
                    }
                }
            }
            

            到此这篇关于Activiti7与Spring以及Spring Boot整合开发的文章就介绍到这了,更多相关Activiti7整合开发内容请搜索我们以前的文章或继续浏览下面的相关文章希望大家以后多多支持我们!

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