activity工作流

<!-- activiti工作流依赖 -->

        <dependency>

            <groupId>org.activiti</groupId>

            <artifactId>activiti-engine</artifactId>

            <version>5.17.0</version>

        </dependency>

        <dependency>

            <groupId>org.activiti</groupId>

            <artifactId>activiti-spring</artifactId>

            <version>5.17.0</version>

        </dependency>

配置工作流的xml文件

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"

    xmlns:beabs="http://www.springframework.org/schema/beans"

    xsi:schemaLocation="http://www.springframework.org/schema/beans  http://www.springframework.org/schema/beans/spring-beans-3.2.xsd ">

    <!-- 加载activiti引擎 -->

    <bean id="activitiTransactionManager"

        class="org.springframework.jdbc.datasource.DataSourceTransactionManager"

        p:dataSource-ref="dataSource" />

    <bean id="processEngineConfiguration" class="org.activiti.spring.SpringProcessEngineConfiguration">

        <property name="dataSource" ref="dataSource" />

        <property name="transactionManager" ref="activitiTransactionManager" />

        <property name="databaseSchemaUpdate" value="false" />

        <property name="dbIdentityUsed" value="false" />

        <property name="jobExecutorActivate" value="false" />

    </bean>

    <bean id="processEngine" class="org.activiti.spring.ProcessEngineFactoryBean">

        <property name="processEngineConfiguration" ref="processEngineConfiguration" />

    </bean>

    <!-- activiti的各种服务接口 -->

    <bean id="repositoryService" factory-bean="processEngine"

        factory-method="getRepositoryService" />

    <bean id="runtimeService" factory-bean="processEngine"

        factory-method="getRuntimeService" />

    <bean id="formService" factory-bean="processEngine"

        factory-method="getFormService" />

    <bean id="identityService" factory-bean="processEngine"

        factory-method="getIdentityService" />

    <bean id="taskService" factory-bean="processEngine"

        factory-method="getTaskService" />

    <bean id="historyService" factory-bean="processEngine"

        factory-method="getHistoryService" />

    <bean id="managementService" factory-bean="processEngine"

        factory-method="getManagementService" />

</beans>

配置相关数据源，查看文章http://blog.csdn.net/u013421749/article/details/48160467

@Transactional(propagation = Propagation.REQUIRED, rollbackFor = Exception.class)

    public Deployment saveNewDeploye(File file, String filename) throws Exception {

        ZipInputStream zipInputStream = new ZipInputStream(new FileInputStream(file));

        Deployment deployment = repositoryService// 与流程定义和部署对象相关的Service

                .createDeployment()// 创建一个部署对象

                .name(filename)// 添加部署的名称

                .addZipInputStream(zipInputStream).deploy();// 完成部署

        return deployment;

    }

@Transactional(propagation = Propagation.REQUIRED, rollbackFor = Exception.class)

    public void complete(String taskId, Map<String, Object> variables, String userName, String message)

            throws Exception {

        Task task = taskService.createTaskQuery()//

                .taskId(taskId)// 使用任务ID查询

                .singleResult();

        // 获取流程实例ID

        String processInstanceId = task.getProcessInstanceId();

        Authentication.setAuthenticatedUserId(userName);////批注人的名称 一定要写，不然查看的时候不知道人物信息

        taskService.addComment(taskId, processInstanceId, message);//添加批注信息//message为批注内容

        taskService.complete(taskId, variables);

    }

获取批注内容

public List<Comment> getProcessComments(String taskId) {
List<Comment> historyCommnets = new ArrayList<>();
//	 1) 获取流程实例的ID
Task task = this.taskService.createTaskQuery().taskId(taskId).singleResult();
ProcessInstance pi =runtimeService.createProcessInstanceQuery().processInstanceId(task.getProcessInstanceId()).singleResult();
//       2）通过流程实例查询所有的(用户任务类型)历史活动
List<HistoricActivityInstance> hais = historyService.createHistoricActivityInstanceQuery().processInstanceId(pi.getId()).activityType("userTask").list();
//       3）查询每个历史任务的批注
for (HistoricActivityInstance hai : hais) {
String historytaskId = hai.getTaskId();
List<Comment> comments = taskService.getTaskComments(historytaskId);
// 4）如果当前任务有批注信息，添加到集合中
if(comments!=null && comments.size()>0){
historyCommnets.addAll(comments);
}
}
//       5）返回
return historyCommnets;
}

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