java-activiti——springboot整合activiti，使用官方编辑页面
springboot整合activiti，页面部分功能无法使用
pom文件依赖
<!--activiti =========================================-->
<!-- 可视化5.22的 modeler-->
<dependency>
<groupId>org.activiti</groupId>
<artifactId>activiti-modeler</artifactId>
<version>5.22.0</version>
</dependency>
<!-- Activiti 基础JAR包 排除多余依赖-->
<dependency>
<groupId>org.activiti</groupId>
<artifactId>activiti-spring-boot-starter-basic</artifactId>
<version>5.22.0</version>
<exclusions>
<exclusion>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
</exclusion>
</exclusions>
</dependency>
<!--=================================================-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>1.1.13</version>
</dependency>
<!-- 数据库 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.17</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
生成默认表
resources目录下添加activiti.cfg.xml配置文件。
activiti.cfg.xml,修改相应的数据库信息
<?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:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/contex
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">
<!-- 默认id对应的值为processEngineConfiguration -->
<bean id="processEngineConfiguration"
class="org.activiti.engine.impl.cfg.StandaloneProcessEngineConfiguration">
<property name="dataSource" ref="dataSource" />
<!-- activiti数据库表处理策略：true表示数据库中已经存在相应的表，那么直接使用，如果不存在，那么会创建 -->
<property name="databaseSchemaUpdate" value="true"/>
</bean>
<!-- 这里可以使用 链接池-->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
<property name="driverClassName" value="com.mysql.cj.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/activiti?useSSL=false&serverTimezone=GMT%2B8&
useUnicode=true&characterEncoding=utf-8&serverTimezone=Asia/Shanghai&nullCatalogMeansCurrent=true" />
<property name="username" value="root" />
<property name="password" value="root" />
<property name="maxActive" value="3" />
<property name="maxIdle" value="1" />
</bean>
</beans>
启动类移除安全框架或使用默认账号user 密码在启动日志中打印
@SpringBootApplication(exclude = {SecurityAutoConfiguration.class,
org.activiti.spring.boot.SecurityAutoConfiguration.class})
创建表测试类
package com.ys.actividemo;
import org.activiti.engine.ProcessEngine;
import org.activiti.engine.ProcessEngineConfiguration;
import org.junit.jupiter.api.Test;
/**
* 使用activiti.cfg_bf.xml 创建activiti默认表
**/
public class TestCreateTable {
@Test
public void testCreat(){
ProcessEngineConfiguration processEngineConfiguration =
ProcessEngineConfiguration.createProcessEngineConfigurationFromResource("activiti.cfg.xml",
"processEngineConfiguration");
ProcessEngine processEngine = processEngineConfiguration.buildProcessEngine();
System.out.println("processEngine = " + processEngine);
}
}
使用官方绘制流程管理
yml部分配置
# --- activiti
url: jdbc:mysql://127.0.0.1:3306/activiti?useSSL=false&serverTimezone=GMT%2B8&useUnicode=true&characterEncoding=utf-8&serverTimezone=Asia/Shanghai
driver-class-name: com.mysql.cj.jdbc.Driver
username: root
password: root
代码目录结构
ModelEditorJsonRestResource
/* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.ys.actividemo.controller;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ObjectNode;
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;
/**
* @author Tijs Rademakers
*/
@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
/* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.ys.actividemo.controller;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ObjectNode;
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.web.bind.annotation.*;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
/**
* @author Tijs Rademakers
*/
@RestController
public class ModelSaveRestResource implements ModelDataJsonConstants {
protected static final Logger LOGGER = LoggerFactory.getLogger(ModelSaveRestResource.class);
@Autowired
private RepositoryService repositoryService;
@Autowired
private ObjectMapper objectMapper;
@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(MODEL_NAME, name);
modelJson.put(MODEL_DESCRIPTION, description);
model.setMetaInfo(modelJson.toString());
model.setName(name);
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);
}
}
}
ModelTest
package com.ys.actividemo.controller;
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;
/**
* 访问 127.0.0.1/model/create跳转工具页面
* @date 2022/6/13 16:36
*/
@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){
}
}
}
StencilsetRestResource
/* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.ys.actividemo.controller;
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;
import java.io.InputStream;
/**
* @author Tijs Rademakers
*/
@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);
}
}
}
resources目录下添加页面文件。
文件多，在demo项目中pubilc文件夹中，注意配置文件在 app-cfg.js 和controller路由有相对
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