ActivitiAPI

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package cn.itcast.activiti;import java.io.File;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.InputStream;import java.io.OutputStream;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;import java.util.zip.ZipInputStream;import org.activiti.engine.ProcessEngine;import org.activiti.engine.ProcessEngines;import org.activiti.engine.repository.Deployment;import org.activiti.engine.repository.DeploymentBuilder;import org.activiti.engine.repository.DeploymentQuery;import org.activiti.engine.repository.ProcessDefinition;import org.activiti.engine.repository.ProcessDefinitionQuery;import org.activiti.engine.runtime.ProcessInstance;import org.activiti.engine.runtime.ProcessInstanceQuery;import org.activiti.engine.task.Task;import org.activiti.engine.task.TaskQuery;import org.apache.commons.io.FileUtils;import org.junit.Test;/** * 使用Activiti框架的API操作流程 *  * @author zhaoqx *  */public class ActivitiAPITest {    ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();    /**     * 部署流程定义 方式一：读取单个的流程定义文件 方式二：读取zip压缩文件     */    @Test    public void test1() {        DeploymentBuilder deploymentBuilder = processEngine                .getRepositoryService().createDeployment();        // 方式一：读取单个的流程定义文件        deploymentBuilder.addClasspathResource("test1.bpmn");        deploymentBuilder.addClasspathResource("test1.png");         Deployment deployment = deploymentBuilder.deploy();        // 方式二：读取zip压缩文件        /*        zipInputStream = new ZipInputStream(this.getClass().getClassLoader().getResourceAsStream("process.zip"));        deploymentBuilder.addZipInputStream(zipInputStream);        deploymentBuilder.name("请假流程部署");        Deployment deployment = deploymentBuilder.deploy();*/    }    /**     * 查询部署列表     */    @Test    public void test2() {        // 部署查询对象，查询表act_re_deployment        DeploymentQuery query = processEngine.getRepositoryService()                .createDeploymentQuery();        List<Deployment> list = query.list();        for (Deployment deployment : list) {            String id = deployment.getId();            System.out.println(id);        }    }    /**     * 查询流程定义列表     */    @Test    public void test3() {        // 流程定义查询对象，查询表act_re_procdef        ProcessDefinitionQuery query = processEngine.getRepositoryService()                .createProcessDefinitionQuery();        List<ProcessDefinition> list = query.list();        for (ProcessDefinition pd : list) {            System.out.println(pd.getName() + "" + pd.getId());        }    }    /**     * 删除部署信息     */    @Test    public void test4() {        String deploymentId = "1001";        // processEngine.getRepositoryService().deleteDeployment(deploymentId);        processEngine.getRepositoryService().deleteDeployment(deploymentId,                true);    }    /**     * 删除流程定义(通过删除部署信息达到删除流程定义的目的)     */    @Test    public void test5() {        String deploymentId = "1401";        // processEngine.getRepositoryService().deleteDeployment(deploymentId);        processEngine.getRepositoryService().deleteDeployment(deploymentId,                true);    }    /**     * 查询一次部署对应的流程定义文件名称和对应的输入流（bpmn png）     *      * @throws Exception     */    @Test    public void test6() throws Exception {        String deploymentId = "101";        List<String> names = processEngine.getRepositoryService()                .getDeploymentResourceNames(deploymentId);        for (String name : names) {            System.out.println(name);            InputStream in = processEngine.getRepositoryService()                    .getResourceAsStream(deploymentId, name);            // 将文件保存到本地磁盘            /*             * OutputStream out = new FileOutputStream(new File("d:\\" + name));             * byte[] b = new byte[1024]; int len = 0; while((len =             * in.read(b))!=-1) { out.write(b, 0, len); } out.close();             */            FileUtils.copyInputStreamToFile(in, new File("d:\\" + name));            in.close();        }    }    /**     * 获得png文件的输入流     *      * @throws Exception     */    @Test    public void test7() throws Exception {        String processDefinitionId = "qjlc:9:1204";        InputStream pngInputStream = processEngine.getRepositoryService()                .getProcessDiagram(processDefinitionId);        FileUtils.copyInputStreamToFile(pngInputStream, new File("d:\\my.png"));    }    /**     * 启动流程实例 方式一：根据流程定义的id启动 方式二：根据流程定义的key启动(自动选择最新版本的流程定义启动流程实例)     */    @Test    public void test8() {        /*         * String processDefinitionId = "qjlc:9:1204"; ProcessInstance         * processInstance =         * processEngine.getRuntimeService().startProcessInstanceById         * (processDefinitionId ); System.out.println(processInstance.getId());         */        String processDefinitionKey = "qjlc";        ProcessInstance processInstance = processEngine.getRuntimeService()                .startProcessInstanceByKey(processDefinitionKey);        System.out.println(processInstance.getId());    }    /**     * 查询流程实例列表,查询act_ru_execution表     */    @Test    public void test9(){        //流程实例查询对象，查询act_ru_execution表        ProcessInstanceQuery query = processEngine.getRuntimeService().createProcessInstanceQuery();        query.processDefinitionKey("qjlc");        query.orderByProcessInstanceId().desc();        query.listPage(0, 2);        List<ProcessInstance> list = query.list();        for (ProcessInstance pi : list) {            System.out.println(pi.getId() + " " + pi.getActivityId());        }    }    /**     * 结束流程实例,操作的表act_ru_execution act_ru_task     */    @Test    public void test10(){        String processInstanceId = "1601";        processEngine.getRuntimeService().deleteProcessInstance(processInstanceId , "我愿意");    }    /**     * 查询任务列表     */    @Test    public void test11(){        //任务查询对象,查询act_ru_task表        TaskQuery query = processEngine.getTaskService().createTaskQuery();        String assignee = "李四";        query.taskAssignee(assignee);        query.orderByTaskCreateTime().desc();        List<Task> list = query.list();        for (Task task : list) {            System.out.println(task.getId());        }    }    /**     * 办理任务     */    @Test    public void test12(){        String taskId = "2902";        processEngine.getTaskService().complete(taskId);    }    /**     * 直接将流程向下执行一步     */    @Test    public void test13(){        String executionId = "2701";//流程实例id        processEngine.getRuntimeService().signal(executionId);    }    /**     * 查询最新版本的流程定义列表     */    @Test    public void test14(){        ProcessDefinitionQuery query = processEngine.getRepositoryService().createProcessDefinitionQuery();        query.orderByProcessDefinitionVersion().asc();        List<ProcessDefinition> list = query.list();        Map<String, ProcessDefinition> map = new HashMap<String, ProcessDefinition>();        for (ProcessDefinition pd : list) {            map.put(pd.getKey(), pd);        }        ArrayList<ProcessDefinition> lastList = new ArrayList<>(map.values());        for (ProcessDefinition processDefinition : lastList) {            System.out.println(processDefinition.getName() + "  "+ processDefinition.getVersion() );        }    }}
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