四、Activiti 部署的三种方式与部署查询流程查询源码
Activiti 部署的三种方式 与 部署查询流程查询
/**
* pdManager=process definition manager 流程定义管理
* @author zd
* 流程定义：
* 1、*.bpmn和*.png叫做流程定义文档
* png是为了显示图片的
* bpmn是为了结构化的描述流程定义
* 2、有key,version,pdid来确定流程定义的
* 操作：
* 1、部署（三种方式）
* classpath
* inputstream
* zipinputstream
* 2、查询
* 查询流程部署
* 查询所有的流程部署
* 根据deploymentID查询流程部署
* 查询流程定义
* 查询所有的流程定义
* 根据pdid查询流程定义
* 根据pdkey查询流程定义
* 根据 deploymentID查询流程定义
* 3、删除
* 4、查看流程图
* 可以根据pdid查询流程图
* 可以根据deploymentID,resourceName查询流程图
*/
public class PDManager {
/**
* 1、涉及到的表
* act_re_deployment 部署表
* 1、说明
* 描述的是一次动作,每部署一次，在该表中增加一行记录
* 2、字段
* ID_: 部署ID
* act_re_procdef 流程定义表
* 1、说明
* 是用来描述流程定义的
* 如果key值或者name值发生变化，相当于一个全新的流程定义，这个时候再次部署，版本号从1开始计算
* 2、字段
* name_:流程定义名称
* key_:流程定义key
* version_:版本
* deployment_id_:部署ID
* pdid:流程定义ID {processKey}:{processVersion}:随机数
* act_ge_bytearry 通用数据表 该表存放了hellworld.bpmn和helloworld.png数据
* 1、说明
* 在部署的时候，部署的bpmn和png都存放在该表中
* 2、字段
* deploymentID:部署ID 将来可以根据部署ID查询图片
*/
/**
* 根据classpath进行部署
*/
@Test
public void testDeploy_Classpath(){
//得到一个默认的流程引擎
ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
Deployment deployment = processEngine.getRepositoryService()
.createDeployment()
.addClasspathResource("com/itheima09/activiti5/helloworld/helloworld.bpmn")
.addClasspathResource("com/itheima09/activiti5/helloworld/helloworld.png")
.deploy();
System.out.println(deployment.getId());
System.out.println(deployment.getName());
}
/**
* 根据inputStream进行部署
*/
@Test
public void testDeploy_Inputstream(){
InputStream inputStream = this.getClass()
.getClassLoader()
.getResourceAsStream("com/itheima09/activiti5/helloworld/helloworld.bpmn");
ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
processEngine.getRepositoryService()
.createDeployment()
.addInputStream("com/itheima09/activiti5/helloworld/helloworld.bpmn", inputStream)
.deploy();
}
/**
* 根据zipinputstream进行部署
*/
@Test
public void testDeploy_ZipinputStream(){
InputStream inputStream = this.getClass()
.getClassLoader()
.getResourceAsStream("com/itheima09/activiti5/helloworld/helloworld.zip");
ZipInputStream zipInputStream = new ZipInputStream(inputStream);
ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
processEngine.getRepositoryService()
.createDeployment()
.addZipInputStream(zipInputStream)
.deploy();
}
/**
* 查询所有的流程部署
*/
@Test
public void testQueryDeployment(){
ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
List dList = processEngine.getRepositoryService()
.createDeploymentQuery()//创建一个部署查询
.list();
for(Deployment deployment:dList){
System.out.println(deployment.getId());
}
}
/**
* 根据部署ID查询部署
*/
@Test
public void testQueryDeploymentByID(){
ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
Deployment deployment = processEngine.getRepositoryService()
.createDeploymentQuery()
.deploymentId("1") //查询deploymentid为1的部署
.singleResult();
System.out.println(deployment.getId());
}
/**
* 查询所有的流程定义
*/
@Test
public void testQueryPD(){
ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
List pdList = processEngine.getRepositoryService()
.createProcessDefinitionQuery()
.list();
for(ProcessDefinition pd:pdList){
System.out.print("key:"+pd.getKey()+",");
System.out.print("version:"+pd.getVersion()+",");
System.out.println("pdid:"+pd.getId());
}
}
/**
* 根据pdid查询流程定义
*/
@Test
public void testQueryPDByPDID(){
ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
ProcessDefinition pd = processEngine.getRepositoryService()
.createProcessDefinitionQuery()
.processDefinitionId("itheima09:1:204")
.singleResult();
System.out.print("key:"+pd.getKey()+",");
System.out.print("version:"+pd.getVersion()+",");
System.out.println("pdid:"+pd.getId());
}
/**
* 根据pdkey查询流程定义
*/
@Test
public void testQueryPDByPDKEY(){
ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
List pdList = processEngine.getRepositoryService()
.createProcessDefinitionQuery()
.processDefinitionKey("myProcess")
.list();
for(ProcessDefinition pd:pdList){
System.out.print("key:"+pd.getKey()+",");
System.out.print("version:"+pd.getVersion()+",");
System.out.println("pdid:"+pd.getId());
}
}
/**
* 根据deploymentID查询流程定义 deploymentID和pdid是相对应的
*/
/**
* 删除
* 只能根据deploymentID进行删除
*/
@Test
public void testDelete(){
ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
// processEngine.getRepositoryService()
// .deleteDeployment("1");//用该API只能删除流程定义的内容和部署的内容
processEngine.getRepositoryService()
.deleteDeployment("1", true);//删除了关于deploymentID为1的所有的数据，包括：流程定义、流程部署、任务等信息
}
/**
* 查询流程图
*/
@Test
public void showImage() throws Exception{
ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
InputStream inputStream = processEngine.getRepositoryService()
.getProcessDiagram("itheima09:1:204");
OutputStream outputStream = new FileOutputStream("e:/processimg1.png");
for(int b=-1;(b=inputStream.read())!=-1;){
outputStream.write(b);
}
inputStream.close();
outputStream.close();
InputStream inputStream2 = processEngine.getRepositoryService()
.getResourceAsStream("101", "com/itheima09/activiti5/helloworld/helloworld.png");
OutputStream outputStream2 = new FileOutputStream("e:/processimg2.png");
for(int b=-1;(b=inputStream2.read())!=-1;){
outputStream2.write(b);
}
inputStream2.close();
outputStream2.close();
}
}