为了更好的方便定义部署流程,需要把activiti功能放置在页面中。其中流程的设定是特殊麻烦的。需要集成其他工具进行使用
依赖:
<?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 https://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>2.4.5</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.jt</groupId>
<artifactId>ttestA</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.xmlgraphics</groupId>
<artifactId>batik-transcoder</artifactId>
<version>1.7</version>
</dependency>
<dependency>
<groupId>org.apache.xmlgraphics</groupId>
<artifactId>batik-codec</artifactId>
<version>1.7</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web-services</artifactId>
</dependency>
<!-- springSecurity 依赖 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<!-- mysql -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<!--引入activiti的springboot启动器 -->
<dependency>
<groupId>org.activiti</groupId>
<artifactId>activiti-spring-boot-starter</artifactId>
<version>7.1.0.M6</version>
<!-- <exclusions>-->
<!-- <exclusion>-->
<!-- <artifactId>mybatis</artifactId>-->
<!-- <groupId>org.mybatis</groupId>-->
<!-- </exclusion>-->
<!-- </exclusions>-->
</dependency>
<dependency>
<groupId>org.activiti</groupId>
<artifactId>activiti-diagram-rest</artifactId>
<!-- exclusions:activiti-diagram-rest中含有security的jar包,导致访问springbott需要登录,此处剔除登录-->
<exclusions>
<exclusion>
<artifactId>spring-security-config</artifactId>
<groupId>org.springframework.security</groupId>
</exclusion>
<exclusion>
<artifactId>spring-security-core</artifactId>
<groupId>org.springframework.security</groupId>
</exclusion>
<exclusion>
<artifactId>spring-security-crypto</artifactId>
<groupId>org.springframework.security</groupId>
</exclusion>
<exclusion>
<artifactId>spring-security-web</artifactId>
<groupId>org.springframework.security</groupId>
</exclusion>
</exclusions>
<version>5.22.0</version>
</dependency>
<dependency>
<groupId>org.activiti</groupId>
<artifactId>activiti-json-converter</artifactId>
<version>6.0.0</version>
</dependency>
<dependency>
<groupId>org.activiti</groupId>
<artifactId>activiti-modeler</artifactId>
<version>5.22.0</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.20</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
application.yml配置:
server:
port: 8091
# Spring配置
spring:
# activiti配置
activiti:
#自动更新数据库结构
#1.flase:默认值。activiti在启动时,对比数据库表中保存的版本,如果没有表或者版本不匹配,将抛出异常
#2.true: activiti会对数据库中所有表进行更新操作。如果表不存在,则自动创建
#3.create_drop: 在activiti启动时创建表,在关闭时删除表(必须手动关闭引擎,才能删除表)
#4.drop-create: 在activiti启动时删除原来的旧表,然后在创建新表(不需要手动关闭引擎)
database-schema-update: true
#activiti7默认不生成历史信息表,开启历史表
db-history-used: true
#记录历史等级 可配置的历史级别有none, activity, audit, full
#none:不保存任何的历史数据,因此,在流程执行过程中,这是最高效的。
#activity:级别高于none,保存流程实例与流程行为,其他数据不保存。
#audit:除activity级别会保存的数据外,还会保存全部的流程任务及其属性。audit为history的默认值。
#full:保存历史数据的最高级别,除了会保存audit级别的数据外,还会保存其他全部流程相关的细节数据,包括一些流程参数等。
history-level: full
# =============================
#自动检查、部署流程定义文件
check-process-definitions: false
# asyncExecutorActivate是指activiti在流程引擎启动就激活AsyncExecutor,异步:true-开启(默认)、false-关闭
# async-executor-activate: true
#流程定义文件存放目录,要具体到某个目录
# process-definition-location-prefix: classpath:/processes/holliday/
#process-definition-location-suffixes: #流程文件格式
# - **.bpmn20.xml
# - **.bpmn
application:
name: weixinZF
datasource:
#高版本驱动使用
driver-class-name: com.mysql.cj.jdbc.Driver
url: jdbc:mysql://127.0.0.1:3306/activiti?serverTimezone=GMT%2B8&useUnicode=true&characterEncoding=utf8&nullCatalogMeansCurrent=true&autoReconnect=true&allowMultiQueries=true
#设定用户名和密码
username: root
password: root
jackson:
date-format: yyyy-MM-dd HH:mm:ss
time-zone: GMT+8
#SpringBoot整合Mybatis
mybatis-plus:
#指定别名包
type-aliases-package: com.jt.pojo
#扫描指定路径下的映射文件
mapper-locations: classpath:/mapper/*.xml
#开启驼峰映射
configuration:
log-impl: org.apache.ibatis.logging.stdout.StdOutImpl #sql日志
map-underscore-to-camel-case: true
# 一二级缓存默认开始 所以可以简化
#打印mysql日志
logging:
level:
com.jt.mapper: debug
链接: https://pan.baidu.com/s/1TD2Ie84TyREoNkioj54F4g
提取码: qwer
从上方链接,或者自己去官网网站下载源码
将文件粘贴到controller层
ModelEditorJsonRestResource
打开在线编辑器时加载指定模型到页面
import org.activiti.editor.constants.ModelDataJsonConstants;
import org.activiti.engine.ActivitiException;
import org.activiti.engine.RepositoryService;
import org.activiti.engine.repository.Model;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ObjectNode;
@RestController
public class ModelEditorJsonRestResource implements ModelDataJsonConstants {
protected static final Logger LOGGER = LoggerFactory.getLogger(ModelEditorJsonRestResource.class);
@Autowired
private RepositoryService repositoryService;
@Autowired
private ObjectMapper objectMapper;
@RequestMapping(value="/model/{modelId}/json", method = RequestMethod.GET, produces = "application/json")
public ObjectNode getEditorJson(@PathVariable String modelId) {
ObjectNode modelNode = null;
Model model = repositoryService.getModel(modelId);
if (model != null) {
try {
if (StringUtils.isNotEmpty(model.getMetaInfo())) {
modelNode = (ObjectNode) objectMapper.readTree(model.getMetaInfo());
} else {
modelNode = objectMapper.createObjectNode();
modelNode.put(MODEL_NAME, model.getName());
}
modelNode.put(MODEL_ID, model.getId());
ObjectNode editorJsonNode = (ObjectNode) objectMapper.readTree(
new String(repositoryService.getModelEditorSource(model.getId()), "utf-8"));
modelNode.put("model", editorJsonNode);
} catch (Exception e) {
LOGGER.error("Error creating model JSON", e);
throw new ActivitiException("Error creating model JSON", e);
}
}
return modelNode;
}
}
ModelSaveRestResource
保存流程图编辑器的信息
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import org.activiti.editor.constants.ModelDataJsonConstants;
import org.activiti.engine.ActivitiException;
import org.activiti.engine.RepositoryService;
import org.activiti.engine.repository.Model;
import org.apache.batik.transcoder.TranscoderInput;
import org.apache.batik.transcoder.TranscoderOutput;
import org.apache.batik.transcoder.image.PNGTranscoder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.util.MultiValueMap;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseStatus;
import org.springframework.web.bind.annotation.RestController;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ObjectNode;
@RestController
public class ModelSaveRestResource implements ModelDataJsonConstants {
protected static final Logger LOGGER = LoggerFactory.getLogger(ModelSaveRestResource.class);
@Autowired
private RepositoryService repositoryService;
@Autowired
private ObjectMapper objectMapper;
/**
* 保存流程图编辑器的信息
* @param modelId
* @param name
* @param description
* @param json_xml
* @param svg_xml
*/
@RequestMapping(value = "/model/{modelId}/save", method = RequestMethod.PUT)
@ResponseStatus(value = HttpStatus.OK)
public void saveModel(@PathVariable String modelId, String name, String description, String json_xml, String svg_xml) {
try {
Model model = repositoryService.getModel(modelId);
ObjectNode modelJson = (ObjectNode) objectMapper.readTree(model.getMetaInfo());
modelJson.put(ModelDataJsonConstants.MODEL_NAME, name);
modelJson.put(ModelDataJsonConstants.MODEL_DESCRIPTION, description);
model.setMetaInfo(modelJson.toString());
model.setName(name);
model.setDeploymentId(null);
Integer version = model.getVersion();
version++;
model.setVersion(version);
repositoryService.saveModel(model);
repositoryService.addModelEditorSource(model.getId(), json_xml.getBytes("utf-8"));
InputStream svgStream = new ByteArrayInputStream(svg_xml.getBytes("utf-8"));
TranscoderInput input = new TranscoderInput(svgStream);
PNGTranscoder transcoder = new PNGTranscoder();
// Setup output
ByteArrayOutputStream outStream = new ByteArrayOutputStream();
TranscoderOutput output = new TranscoderOutput(outStream);
// Do the transformation
transcoder.transcode(input, output);
final byte[] result = outStream.toByteArray();
repositoryService.addModelEditorSourceExtra(model.getId(), result);
outStream.close();
} catch (Exception e) {
LOGGER.error("Error saving model", e);
throw new ActivitiException("Error saving model", e);
}
}
}
StencilsetRestResource
获取流程图编辑器的汉化文件
import org.activiti.engine.ActivitiException;
import org.apache.commons.io.IOUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class StencilsetRestResource {
@RequestMapping(value="/editor/stencilset", method = RequestMethod.GET, produces = "application/json;charset=utf-8")
public @ResponseBody String getStencilset() {
InputStream stencilsetStream = this.getClass().getClassLoader().getResourceAsStream("stencilset.json");
try {
return IOUtils.toString(stencilsetStream, "utf-8");
} catch (Exception e) {
throw new ActivitiException("Error while loading stencil set", e);
}
}
}
将官方网站的这几个文件cv到resources中
修改app-cfg.js的配置
ACTIVITI.CONFIG = {
// 'contextRoot' : '/activiti-explorer/service',
'contextRoot' : '',
};
配置WebSecurityConfig配置
因为包含security会让你填写账号密码,添加此配置跳过,不添加会让你输入账号密码,而且最后保存还会403
WebSecurityConfig
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.stereotype.Component;
@Component
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
@Override
public void configure(HttpSecurity httpSecurity) throws Exception {
httpSecurity.csrf().disable();
}
}
新建model
ModelTest 通过此路径跳转到页面
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ObjectNode;
import org.activiti.editor.constants.ModelDataJsonConstants;
import org.activiti.engine.ProcessEngine;
import org.activiti.engine.ProcessEngines;
import org.activiti.engine.RepositoryService;
import org.activiti.engine.repository.Model;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@Controller
@RequestMapping("model")
public class ModelTest {
@RequestMapping("create")
public void createModel(HttpServletRequest request, HttpServletResponse response){
try{
String modelName = "modelName";
String modelKey = "modelKey";
String description = "description";
ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
RepositoryService repositoryService = processEngine.getRepositoryService();
ObjectMapper objectMapper = new ObjectMapper();
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);
Model modelData = repositoryService.newModel();
ObjectNode modelObjectNode = objectMapper.createObjectNode();
modelObjectNode.put(ModelDataJsonConstants.MODEL_NAME, modelName);
modelObjectNode.put(ModelDataJsonConstants.MODEL_REVISION, 1);
modelObjectNode.put(ModelDataJsonConstants.MODEL_DESCRIPTION, description);
modelData.setMetaInfo(modelObjectNode.toString());
modelData.setName(modelName);
modelData.setKey(modelKey);
//保存模型
repositoryService.saveModel(modelData);
repositoryService.addModelEditorSource(modelData.getId(), editorNode.toString().getBytes("utf-8"));
response.sendRedirect(request.getContextPath() + "/modeler.html?modelId=" + modelData.getId());
}catch (Exception e){
}
}
}
访问http://localhost:8091/model/create
以上完成即可在可视化页面进行添加!
对模型操作的接口:
package com.jt.controller;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ObjectNode;
import lombok.extern.slf4j.Slf4j;
import org.activiti.bpmn.converter.BpmnXMLConverter;
import org.activiti.bpmn.model.BpmnModel;
import org.activiti.editor.constants.ModelDataJsonConstants;
import org.activiti.editor.language.json.converter.BpmnJsonConverter;
import org.activiti.engine.ProcessEngine;
import org.activiti.engine.ProcessEngines;
import org.activiti.engine.RepositoryService;
import org.activiti.engine.repository.Deployment;
import org.activiti.engine.repository.Model;
import org.apache.commons.io.IOUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.ByteArrayInputStream;
import java.io.OutputStream;
import java.net.URLEncoder;
@RestController
@Slf4j
public class ssss {
@Autowired
private RepositoryService repositoryService;
/**
* 导出指定模型xml 文件
* @param modelId 模型的id
* @param response
*/
@GetMapping(value = "export")
public void export(@PathVariable String modelId, HttpServletResponse response) {
try {
Model modelData = repositoryService.getModel(modelId);
BpmnJsonConverter jsonConverter = new BpmnJsonConverter();
JsonNode editorNode = new ObjectMapper().readTree(repositoryService.getModelEditorSource(modelData.getId()));
BpmnModel bpmnModel = jsonConverter.convertToBpmnModel(editorNode);
BpmnXMLConverter xmlConverter = new BpmnXMLConverter();
byte[] bpmnBytes = xmlConverter.convertToXML(bpmnModel);
ByteArrayInputStream in = new ByteArrayInputStream(bpmnBytes);
OutputStream outputStream = response.getOutputStream();
IOUtils.copy(in, outputStream);
String filename = bpmnModel.getMainProcess().getId() + ".bpmn.xml";
response.setHeader("content-type", "application/octet-stream");
response.setContentType("application/octet-stream;charset=UTF-8");
response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(filename, "utf-8"));
outputStream.flush();
outputStream.close();
} catch (Exception e) {
log.error("导出model的xml文件失败:{}", e.getMessage(), e);
}
}
/**
* 根据Model部署流程
*/
@PostMapping(value = "deploy/{modelId}")
public R<String> deploy(@PathVariable("modelId") String modelId) {
try {
// 获取模型
Model model = repositoryService.getModel(modelId);
ObjectNode objectNode = (ObjectNode) new ObjectMapper().readTree(repositoryService.getModelEditorSource(model.getId()));
BpmnModel bpmnModel = new BpmnJsonConverter().convertToBpmnModel(objectNode);
String processName = model.getName()+".bpmn20.xml";
byte[] bytes = new BpmnXMLConverter().convertToXML(bpmnModel);
// 部署流程
Deployment deployment = repositoryService
.createDeployment().name(model.getName())
.addString(processName, new String(bytes,"UTF-8"))
.deploy();
System.out.println("流程部署id----"+deployment.getId());
return R.OK(deployment.getId());
} catch (Exception e) {
log.error("根据模型部署流程失败:modelId={}", modelId, e);
return R.ERROR();
}
}
/**
* 模型删除
* @param request
*/
@GetMapping("/delete")
public Resp<String> delete(HttpServletRequest request){
String processId = request.getParameter("processId");
System.out.println("processId is:" + processId);
// if(StringUtils.isNotEmpty(processId)){
// return Resp.ERROR(CodeMsgEnum.ERROR);
// }
Model model = repositoryService.getModel(processId);
if(model!=null){
System.out.println("指定模型存在");
repositoryService.deleteModel(processId);
}
return Resp.OK_WITHOUT_DATA();
}
/**
* 新增模型
* @param request
* @param response
*/
@RequestMapping("create")
public void createModel(HttpServletRequest request, HttpServletResponse response){
try{
String modelName = "modelName";
String modelKey = "modelKey";
String description = "description";
ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
RepositoryService repositoryService = processEngine.getRepositoryService();
ObjectMapper objectMapper = new ObjectMapper();
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);
Model modelData = repositoryService.newModel();
ObjectNode modelObjectNode = objectMapper.createObjectNode();
modelObjectNode.put(ModelDataJsonConstants.MODEL_NAME, modelName);
modelObjectNode.put(ModelDataJsonConstants.MODEL_REVISION, 1);
modelObjectNode.put(ModelDataJsonConstants.MODEL_DESCRIPTION, description);
modelData.setMetaInfo(modelObjectNode.toString());
modelData.setName(modelName);
modelData.setKey(modelKey);
//保存模型
repositoryService.saveModel(modelData);
repositoryService.addModelEditorSource(modelData.getId(), editorNode.toString().getBytes("utf-8"));
response.sendRedirect(request.getContextPath() + "/modeler.html?modelId=" + modelData.getId());
}catch (Exception e){
}
}
}
以上即是activiti链接可视化的操作。如需其他详细的操作,比如项目应用,参考以下文章:
Activiti7工作流引擎_Mr_Jin.的博客-CSDN博客
看完点个赞是对博主的支持哦~