0.Springboot项目创建
通过https://start.spring.io/生成纯净的一个springboot工程
1.引入Activiti相关依赖
<dependency>
<groupId>org.activiti</groupId>
<artifactId>activiti-spring-boot-starter</artifactId>
<version>7.1.0.M6</version>
</dependency>2.启动工程并创建activiti数据库
##activiti7中使用spring security，因此启动工程前，需要加入2个文件支持，2个文件的代码如下：
package cn.gzsendi.activitidemotest.config;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
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;
@Configuration
public class ActivitiConfiguration {
private Logger logger = LoggerFactory.getLogger(ActivitiConfiguration.class);
@Bean(name = "userDetailsService")
public UserDetailsService myUserDetailsService() {
InMemoryUserDetailsManager inMemoryUserDetailsManager = new InMemoryUserDetailsManager();
//用户
String[][] usersGroupsAndRoles = {
{"hefy", "123456", "ROLE_ACTIVITI_USER"},
{"liujh", "123456", "ROLE_ACTIVITI_ADMIN"},
{"liuky", "123456", "ROLE_ACTIVITI_USER"},
{"admin", "123456", "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();
}
}
package cn.gzsendi.activitidemotest.utils;
import java.util.Collection;
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 javax.annotation.Resource;
@Component
public class SecurityUtil {
@Autowired
@Qualifier("userDetailsService")
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");
}
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);
}
}##加入activiti7的配置
server.port=8080
server.servlet.context-path=/activitidemotest
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/activitidemo?useSSL=false&useUnicode=true&characterEncoding=utf8&serverTimezone=GMT%2B8&allowMultiQueries=true
spring.datasource.username=root
spring.datasource.password=123456
spring.activiti.database-schema-update=true
spring.activiti.db-history-used=true
spring.activiti.history-level=full
spring.activiti.check-process-definitions=false
spring.activiti.deployment-mode=never-fail
spring.activiti.process-definition-location-prefix=classpath:/process/##启动springboot工程，让系统启动时帮我们建好25张表 2.安装Activiti插件（设计器） ##Idea
file->settings->plugins，然后找actiBPM进行安装。
##流程图中乱码问题先提前设置防止：
修改idea64.exe.vmoptions文件，在文件中加上如下，然后重启Idea
-Dfile.encoding=utf-8
##进行流程设计
File->new->BpmnFile
设计好后，修改Process1.bpmn成Process1.xml,然后右键export file导出成Process1.jpg，再将Process1.bpmn修改成Process1.bpmn20.xml，最后将2个文件放在process文件夹
3.流程部署
使用activiti提供的api把流程定义内容存储起来，Activiti执行把流程定义内容存储在数据库中。
package cn.gzsendi.activitidemotest;
import org.activiti.engine.RepositoryService;
import org.activiti.engine.repository.Deployment;
import org.activiti.engine.repository.DeploymentBuilder;
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 SpringbootJunitTest {
//得到RepositoryService实例
@Autowired
private RepositoryService repositoryService;
//0.流程部署，单个文件部署方式
@Test
public void testDeployment(){
//使用RepositoryService进行部署
DeploymentBuilder builder = repositoryService.createDeployment();
builder.addClasspathResource("process/Process1.bpmn20.xml");
builder.addClasspathResource("process/Process1.jpg");
builder.name("first_activiti_process");
Deployment deployment = builder.deploy();
//输出部署信息
System.out.println("流程部署id：" + deployment.getId());
System.out.println("流程部署名称：" + deployment.getName());
//流程部署id：125098e1-ffd9-11eb-8847-02004c4f4f50
//流程部署名称：first_activiti_process
}
}执行此操作后activiti会将上边代码中指定的bpmn20文件和图片文件保存在activiti数据库。
流程定义部署后操作activiti的3张表
4.流程实例启动
启动一个流程实例表示开始一次业务流程的运行
//1.流程实例启动
@Test
public void testStartProcess(){
//根据流程定义Id启动流程
ProcessInstance processInstance = runtimeService.startProcessInstanceByKey("myProcess_1");
//输出实例信息
System.out.println("流程定义id：" + processInstance.getProcessDefinitionId());
System.out.println("流程实例id：" + processInstance.getId());
System.out.println("当前活动Id：" + processInstance.getActivityId());
//流程定义id：myProcess_1:1:12702ed4-ffd9-11eb-8847-02004c4f4f50
//流程实例id：a9b162aa-ffda-11eb-bad1-02004c4f4f50
//当前活动Id：null
}流程实例启动，将操作以下几个数据库表
act_hi_actinst 流程实例执行历史
act_hi_identitylink 流程的参与用户历史信息
act_hi_procinst 流程实例历史信息
act_hi_taskinst 流程任务历史信息
act_ru_execution 流程执行信息
act_ru_identitylink 流程的参与用户信息
act_ru_task 任务信息5.任务查询
流程启动后，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。
//2.任务查询
//流程启动后，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。
@Test
public void testFindPersonalTaskList() {
//任务负责人
String assignee = "liuky";
//根据流程key 和 任务负责人 查询任务
List<Task> list = taskService.createTaskQuery()
.processDefinitionKey("myProcess_1")
.taskAssignee(assignee)
.list();
for (Task task : list) {
System.out.println("流程实例id：" + task.getProcessInstanceId());
System.out.println("任务id：" + task.getId());
System.out.println("任务负责人：" + task.getAssignee());
System.out.println("任务名称：" + task.getName());
}
//流程实例id：a9b162aa-ffda-11eb-bad1-02004c4f4f50
//任务id：a9b5815e-ffda-11eb-bad1-02004c4f4f50
//任务负责人：liuky
//任务名称：提交申请
}6. 完成任务
@Test
public void completTask(){
//根据流程key和任务的负责人查询任务并选择其中的一个任务处理,这里用的
//是singleResult返回一条，真实环境中是通过步骤5中查询出所有的任务，然后在页面上选择一个任务进行处理.
Task task = taskService.createTaskQuery()
.processDefinitionKey("myProcess_1") //流程Key
.taskAssignee("liuky") //要查询的负责人
.singleResult();
//完成任务,参数：任务id
taskService.complete(task.getId());
}7.流程结束，或流程流转过程中的历史信息查询
//流程结束，或流程流转过程中的历史信息查询
@Test
public void findHistoryInfo(){
//获取 actinst表的查询对象
HistoricActivityInstanceQuery instanceQuery = historyService.createHistoricActivityInstanceQuery();
//查询 actinst表，条件：根据 InstanceId 查询
instanceQuery.processInstanceId("fb5b7674-ffde-11eb-91f8-02004c4f4f50");
//增加排序操作,orderByHistoricActivityInstanceStartTime 根据开始时间排序 asc 升序
instanceQuery.orderByHistoricActivityInstanceStartTime().asc();
//查询所有内容
List<HistoricActivityInstance> activityInstanceList = instanceQuery.list();
//输出结果
for (HistoricActivityInstance hi : activityInstanceList) {
System.out.println("");
System.out.println("===================-===============");
System.out.println(hi.getStartTime());
System.out.println(hi.getAssignee());
System.out.println(hi.getActivityId());
System.out.println(hi.getActivityName());
System.out.println(hi.getProcessDefinitionId());
System.out.println(hi.getProcessInstanceId());
System.out.println("===================-===============");
System.out.println("");
}
}8.其他Api测试
8.1 流程定义信息查询
查询流程相关信息，包含流程定义，流程部署，流程定义版本
@Test
public void queryProcessDefinition(){
//得到ProcessDefinitionQuery对象
ProcessDefinitionQuery processDefinitionQuery = repositoryService.createProcessDefinitionQuery();
//查询出当前所有的流程定义
List<ProcessDefinition> definitionList = processDefinitionQuery.processDefinitionKey("myProcess_1")
.orderByProcessDefinitionVersion()
.desc()
.list();
//打印结果
for (ProcessDefinition processDefinition : definitionList) {
System.out.println("流程定义 id="+processDefinition.getId());
System.out.println("流程定义 name="+processDefinition.getName());
System.out.println("流程定义 key="+processDefinition.getKey());
System.out.println("流程定义 Version="+processDefinition.getVersion());
System.out.println("流程部署ID ="+processDefinition.getDeploymentId());
}
}8.2 删除流程
//删除流程
@Test
public void deleteDeployment(){
String deploymentId = "125098e1-ffd9-11eb-8847-02004c4f4f50";
//删除流程定义，如果该流程定义已有流程实例启动则删除时出错
repositoryService.deleteDeployment(deploymentId);
//设置true 级联删除流程定义，即使该流程有流程实例启动也可以删除，设置为false非级别删除方式，如果流程
//repositoryService.deleteDeployment(deploymentId, true);
}9.demo源码下载
github: https://github.com/jxlhljh/activitidemotest.git
gitee: https://gitee.com/jxlhljh/activitidemotest.git
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