什么是Activiti?
Activiti5是由Alfresco软件在2010年5月17日发布的业务流程管理（BPM）框架，它是覆盖了业务流程管理、工作流、服务协作等领域的一个开源的、灵活的、易扩展的可执行流程语言框架。Activiti基于Apache许可的开源BPM平台，创始人Tom Baeyens是JBoss jBPM的项目架构师，它特色是提供了eclipse插件，开发人员可以通过插件直接绘画出业务流程图。本文采用activiti5.22版本。数据库是ORACLE11g
1.Activiti数据库结构
1)通过运行activiti官方提供的数据库脚本创建数据库，支持db2、h2、hsql、mssql、mysql、oracle、postgres数据库
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1、act_ge_ 通用数据表，ge是general的缩写
2、act_hi_ 历史数据表，hi是history的缩写，对应HistoryService接口
3、act_id_ 身份数据表，id是identity的缩写，对应IdentityService接口
4、act_re_ 流程存储表，re是repository的缩写，对应RepositoryService接口，存储流程部署和流程定义等静态数据
5、act_ru_ 运行时数据表，ru是runtime的缩写，对应RuntimeService接口
2.xml配置文件
七大接口：
1.RepositoryService：提供一系列管理流程部署和流程定义的API。
2.RuntimeService：在流程运行时对流程实例进行管理与控制。
3.TaskService：对流程任务进行管理，例如任务提醒、任务完成和创建任务等。
4.IdentityService：提供对流程角色数据进行管理的API，这些角色数据包括用户组、用户及它们之间的关系。
5.ManagementService：提供对流程引擎进行管理和维护的服务。
6.HistoryService：对流程的历史数据进行操作，包括查询、删除这些历史数据。
7.FormService：表单服务。
3.activiti-webapp-explorer2整合
1）将模板导入项目中
explorer整合实现在线编辑工作流
将src目录下diagram-viewer，editor-app，modeler.html 复制到自己项目中，如下图，本文是复制到webapp下
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2）配置全局路径
配置前段访问路径，否则activiti编辑器会无法访问
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/*
* Activiti Modeler component part of the Activiti project
* Copyright 2005-2014 Alfresco Software, Ltd. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
'use strict';
var ACTIVITI = ACTIVITI || {};
ACTIVITI.CONFIG = {
'contextRoot' : '/',#配置全文访问路径
};
3）后台配置
1.配置后台，页面访问接口配置，activti提供了基本的页面获取、流程保存、流程编辑等接口，用于工作流的在线演示与编辑。
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2.将stencilset.json赋值到配置文件目录下，保证StencilsetRestResource能访问到，这是流程设计器的菜单和功能文件，保存为json格式。
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4.后台实例代码
1）创建流程
/**
* 创建流程
*/
@RequestMapping("/createActiviti")
public void createActiviti(HttpServletRequest request,HttpServletResponse response) throws IOException{
Model model = repositoryService.newModel();
String name = "新建流程";
String description = "";
int revision = 1;
String key = "processKey";
ObjectNode modelNode = objectMapper.createObjectNode();
modelNode.put(ModelDataJsonConstants.MODEL_NAME, name);
modelNode.put(ModelDataJsonConstants.MODEL_DESCRIPTION, description);
modelNode.put(ModelDataJsonConstants.MODEL_REVISION, revision);
model.setName(name);
model.setKey(key);
model.setMetaInfo(modelNode.toString());
repositoryService.saveModel(model);
String id = model.getId();
//完善ModelEditorSource
ObjectNode editorNode = objectMapper.createObjectNode();
editorNode.put("id", "canvas");
editorNode.put("resourceId", "canvas");
ObjectNode stencilSetNode = objectMapper.createObjectNode();
stencilSetNode.put("namespace",
"http://b3mn.org/stencilset/bpmn2.0#");
editorNode.put("stencilset", stencilSetNode);
repositoryService.addModelEditorSource(id, editorNode.toString().getBytes("utf-8"));
// return "redirect:/modeler.html?modelId=" + id;
response.sendRedirect(request.getContextPath() + "/modeler.html?modelId="+id);
}
2）更新流程
/**
* 更新流程
*/
@RequestMapping("/updateActiviti")
public void updateActiviti(String id,HttpServletRequest request,HttpServletResponse response) throws IOException{
response.sendRedirect(request.getContextPath() + "/modeler.html?modelId="+id);
}
3）发布流程
/**
* 发布
*/
@PostMapping("/publish")
@ResponseBody
public Object publish(@RequestParam(value="id")String id){
Result result=new Result();
try {
Model modelData=repositoryService.getModel(id);
byte[] bytes=repositoryService.getModelEditorSource(modelData.getId());
if(bytes==null){
result.setMsg("模型不得为空");
result.setSuccess(false);
return result;
}
JsonNode modelNode=null;
modelNode=new ObjectMapper().readTree(bytes);
BpmnModel model=new BpmnJsonConverter().convertToBpmnModel(modelNode);
if(model.getProcesses().size()==0){
result.setMsg("数据不符合要求");
result.setSuccess(false);
return result;
}
byte[] bpmnByates = new BpmnXMLConverter().convertToXML(model);
//发布流程
String processName=modelData.getName()+".bpmn20.xml";
String convertToXML=new String(bpmnByates);
System.out.println(convertToXML);
Deployment deployment=repositoryService.createDeployment()
.name(modelData.getName())
.addString(processName, new String(bpmnByates, "UTF-8"))
.deploy();
modelData.setDeploymentId(deployment.getId());
repositoryService.saveModel(modelData);
result.setMsg("发布成功");
result.setSuccess(true);
} catch (Exception e) {
result.setMsg("发布失败");
result.setSuccess(false);
}
return result;
}
3）流程查询
/**
* 流程查询
*/
@PostMapping("/deployDatagrid")
@ResponseBody
public Object deployDatagrid(String s_name, HttpServletResponse response,Integer page, Integer rows, String sort, String order){
PageInfo pageInfo = new PageInfo(page, rows, sort, order);
if(StringUtils.isBlank(s_name)){
s_name="";
}
int p1=page-1;
int r1=9-p1;
List deploymentList=repositoryService.createDeploymentQuery()
.deploymentNameLike("%" + s_name + "%").orderByDeploymenTime().desc()
.listPage(p1, r1);
long total=repositoryService.createDeploymentQuery().deploymentNameLike("%"+s_name+"%").count();
List deploymentList2=new ArrayList();
for (Deployment deployment : deploymentList) {
com.pasic.model.po.DeploymentEntity depm=new com.pasic.model.po.DeploymentEntity(deployment.getId(),deployment.getName(),deployment.getCategory(),deployment.getTenantId(),deployment.getDeploymentTime());
deploymentList2.add(depm);
}
System.out.println(deploymentList2);
pageInfo.setRows(deploymentList2);
pageInfo.setTotal((int)total);
if(total/rows==0){
pageInfo.setPagesize(0);
}else{
pageInfo.setPagesize(page++);
}
pageInfo.setNowpage(page);
pageInfo.setSize(rows);
pageInfo.setSuccess(true);
pageInfo.setMessage("列表获取成功");
return pageInfo;
}
4）删除流程
/**
* 删除流程
*/
@PostMapping("/deleteDeploy")
@ResponseBody
public Object deleteDeploy(@RequestParam(value="id")String id){
Result result=new Result();
try {
//加true强制删除
repositoryService.deleteDeployment(id,true);
result.setSuccess(true);
result.setMsg("删除成功");
} catch (Exception e) {
result.setSuccess(false);
result.setMsg("删除失败");
}
return result;
}
5）查看流程图片
1.后台
/**
* 查看流程图 图片
*/
@GetMapping("/showProcessPng")
public String showProcessPng(@RequestParam(value="deployId")String deployId,org.springframework.ui.Model model){
// model.addAttribute("diagramResourceName", processDefinition.getDiagramResourceName());
model.addAttribute("deployId", deployId);
return "activiti/deploy/showProcessPng";
}
@RequestMapping("/showView")
public String showView(String deploymentId, HttpServletResponse response)
throws Exception {
ProcessDefinition processDefinition=repositoryService.createProcessDefinitionQuery()
.deploymentId(deploymentId)
.singleResult();
InputStream inputStream = repositoryService.getResourceAsStream(deploymentId, processDefinition.getDiagramResourceName());
OutputStream outputStream = response.getOutputStream();
for (int b = -1; (b = inputStream.read()) != -1; ) {
outputStream.write(b);
}
outputStream.close();
inputStream.close();
return null;
}
2.前台
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ include file="/commons/global.jsp" %>
6）将用户同步到activiti认证表中
/**
* 同步用户到activiti中
*/
@PostMapping("/syncdata")
@ResponseBody
public Object syncdata(){
Result result=new Result();
try {
Wrapper wrapper=new EntityWrapper();
List userList=userService.selectList(wrapper);
User au = null;
for (SysUser user : userList) {
au=new UserEntity();
au.setId(user.getId());
au.setFirstName(user.getName());
au.setEmail("");
identityService.deleteUser(au.getId());
identityService.saveUser(au);
}
Wrapper wrapper2=new EntityWrapper();
List sysRoleList=roleService.selectList(wrapper2);
Group group=null;
for (SysRole role : sysRoleList) {
group=new GroupEntity();
group.setId(role.getId());
group.setName(role.getName());
identityService.deleteGroup(group.getId());
identityService.saveGroup(group);
}
Wrapper wrapper3=new EntityWrapper();
List roleUserList=userRoleService.selectList(wrapper3);
for (SysUserRole userRole : roleUserList) {
identityService.deleteMembership(userRole.getUserId(), userRole.getRoleId());
identityService.createMembership(userRole.getUserId(), userRole.getRoleId());
}
result.setMsg("同步成功");
result.setSuccess(true);
} catch (Exception e) {
result.setMsg("同步失败");
result.setSuccess(false);
}
return result;
}
*****整合完成后效果
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