1. 前置条件
解压activiti6.0 安装包，进入 activiti-6.0.0/database/create/ 目录
mysql数据库中创建数据库，这里命名为 activiti
导入3个 sql 文件，activiti.mysql.create.*.sql (3个文件，* 代表不同的文字，这里不再详细说明)
2. pom.xml 配置
<?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>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.5.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.tianjishuju</groupId>
<artifactId>project_xuji_backend_java</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>project_xuji_backend_java</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<!-- springboot 基本依赖 -->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.0.1</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!-- activiti springboot 依赖 -->
<dependency>
<groupId>org.activiti</groupId>
<artifactId>activiti-spring-boot-starter-basic</artifactId>
<version>6.0.0</version>
</dependency>
<!-- spring rest 服务依赖，这里必须用这个依赖，spring-boot-starter-rest 会导致其它问题产生 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>2.1.5.RELEASE</version>
</dependency>
<!-- mysql 驱动 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<!-- activiti jpa 依赖，不使用也建议加上，否则在使用@Autowired 注册Bean 时编辑器会显示报错，其实不影响服务正常使用，加上后不再报错 -->
<dependency>
<groupId>org.activiti</groupId>
<artifactId>activiti-spring-boot-starter-jpa</artifactId>
<version>6.0.0</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
3. yml配置
spring:
datasource:
url: jdbc:mysql://127.0.0.1:3306/activiti?useUnicode=true&characterEncoding=utf-8
username: root
password: 123456
4. idea打开项目加载依赖
5. 添加资源
resource目录下创建processes 目录
并在此目录下创建 one-task-process.bpmn20.xml 文件
文件内容如下：
<?xml version="1.0" encoding="UTF-8"?>
<definitions
xmlns="http://www.omg.org/spec/BPMN/20100524/MODEL"
xmlns:activiti="http://activiti.org/bpmn"
targetNamespace="Examples">
<process id="oneTaskProcess" name="The One Task Process">
<startEvent id="theStart" />
<sequenceFlow id="flow1" sourceRef="theStart" targetRef="theTask" />
<userTask id="theTask" name="my task" />
<sequenceFlow id="flow2" sourceRef="theTask" targetRef="theEnd" />
<endEvent id="theEnd" />
</process>
</definitions>
6. 在 java 源码App主程序同级目录下创建 controller 和 service目录
创建controller/MyRestController.java 、service/MyService.java 类
MyRestController.java 内容如下：
/**
* @activiti 流程测试类, com.* 代表自己的包名
*/
package com.*.controller;
import com.*.service.MyService;
import org.activiti.engine.task.Task;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import java.util.ArrayList;
import java.util.List;
@RestController
public class MyRestController {
@Autowired
private MyService myService;
@RequestMapping(value="/process", method= RequestMethod.POST)
public void startProcessInstance() {
myService.startProcess();
}
@RequestMapping(value="/tasks", method= RequestMethod.GET, produces= MediaType.APPLICATION_JSON_VALUE)
public List<TaskRepresentation> getTasks(@RequestParam String assignee) {
List<Task> tasks = myService.getTasks(assignee);
List<TaskRepresentation> dtos = new ArrayList<TaskRepresentation>();
for (Task task : tasks) {
dtos.add(new TaskRepresentation(task.getId(), task.getName()));
}
return dtos;
}
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;
}
}
}
service/MyService.java 内容如下：
package com.*.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 org.springframework.transaction.annotation.Transactional;
import java.util.List;
@Service
public class MyService {
@Autowired
private RuntimeService runtimeService;
@Autowired
private TaskService taskService;
@Transactional
public void startProcess() {
runtimeService.startProcessInstanceByKey("oneTaskProcess");
}
@Transactional
public List<Task> getTasks(String assignee) {
return taskService.createTaskQuery().taskAssignee(assignee).list();
}
}
7. 运行项目
8. 访问
分别访问 http://localhost:8080/process,
http://localhost:8080/tasks?assignee=aaa
备注：
在另外一个项目中创建一直报错：
Error creating bean with name 'requestMappingHandlerMapping'：
java.lang.ArrayStoreException: sun.reflect.annotation.TypeNotPresentExceptio：
原因是 application启动类中引用错误包导致----
import org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration;
要引用下面的包
import org.activiti.spring.boot.SecurityAutoConfiguration;
@SpringBootApplication(exclude = SecurityAutoConfiguration.class)
