activiti在线画流程图

   springboot2.2

   activiti6.0

   activiti-modeler 5.22.0

  注明：版本不一样会导致报错

  上一篇：springboot整合activiti

  效果图

 代码分享：

链接：https://pan.baidu.com/s/1F1lmE4F6ykVY1UPl6NcRaQ
提取码：1234

 pom文件

 <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.0.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com</groupId>
    <artifactId>springboot_activiti</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>springboot_activiti</name>
    <description>Demo project for Spring Boot</description>



    <properties>
        <springboot.version>2.2.0.RELEASE</springboot.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <activiti.version>6.0.0</activiti.version>
    </properties>

    <dependencies>


        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-engine</artifactId>
            <version>${activiti.version}</version>
        </dependency>

        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-spring</artifactId>
            <version>${activiti.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>org.codehaus.jackson</groupId>
                    <artifactId>jackson-core-asl</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.slf4j</groupId>
                    <artifactId>slf4j-log4j12</artifactId>
                </exclusion>
                <exclusion>
                    <artifactId>spring-context</artifactId>
                    <groupId>org.springframework</groupId>
                </exclusion>
                <exclusion>
                    <artifactId>spring-jdbc</artifactId>
                    <groupId>org.springframework</groupId>
                </exclusion>
                <exclusion>
                    <artifactId>spring-tx</artifactId>
                    <groupId>org.springframework</groupId>
                </exclusion>
                <exclusion>
                    <artifactId>spring-orm</artifactId>
                    <groupId>org.springframework</groupId>
                </exclusion>
                <exclusion>
                    <artifactId>spring-beans</artifactId>
                    <groupId>org.springframework</groupId>
                </exclusion>
                <exclusion>
                    <artifactId>mybatis</artifactId>
                    <groupId>org.mybatis</groupId>
                </exclusion>
                <exclusion>
                    <artifactId>activation</artifactId>
                    <groupId>javax.activation</groupId>
                </exclusion>
            </exclusions>

        </dependency>

        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-spring-boot-starter-basic</artifactId>
            <version>${activiti.version}</version>
        </dependency>

        <!-- Activiti 流程图 -->
        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-common-rest</artifactId>
            <version>${activiti.version}</version>
        </dependency>
        <!-- Activiti 在线设计 -->
        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-modeler</artifactId>
            <version>5.22.0</version>
            <exclusions>
                <exclusion>
                    <artifactId>spring-beans</artifactId>
                    <groupId>org.springframework</groupId>
                </exclusion>
                <exclusion>
                    <artifactId>spring-context</artifactId>
                    <groupId>org.springframework</groupId>
                </exclusion>
                <exclusion>
                    <artifactId>spring-core</artifactId>
                    <groupId>org.springframework</groupId>
                </exclusion>
                <exclusion>
                    <artifactId>spring-tx</artifactId>
                    <groupId>org.springframework</groupId>
                </exclusion>
                <exclusion>
                    <artifactId>spring-web</artifactId>
                    <groupId>org.springframework</groupId>
                </exclusion>
                <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>
                <exclusion>
                    <artifactId>spring-webmvc</artifactId>
                    <groupId>org.springframework</groupId>
                </exclusion>
                <exclusion>
                    <artifactId>activation</artifactId>
                    <groupId>javax.activation</groupId>
                </exclusion>
                <exclusion>
                    <artifactId>commons-io</artifactId>
                    <groupId>commons-io</groupId>
                </exclusion>
            </exclusions>
        </dependency>




        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-autoconfigure</artifactId>
            <version>${springboot.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>


        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>2.3</version>
        </dependency>

        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
            <version>2.10.0</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>

        <dependency>
            <groupId>org.junit.jupiter</groupId>
            <artifactId>junit-jupiter-api</artifactId>
            <version>RELEASE</version>
            <scope>compile</scope>
        </dependency>


    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>

            <plugin>
                <groupId>org.apache.tomcat.maven</groupId>
                <artifactId>tomcat7-maven-plugin</artifactId>
                <configuration>
                    <port>8081</port>
                    <path>/activity</path>
                    <systemProperties>
                        <com.sun.management.jmxremote.port>4000</com.sun.management.jmxremote.port>
                    </systemProperties>
                </configuration>
            </plugin>
        </plugins>
    </build>

页面代码介绍：

 

  springboot静态文件处理

@Configuration
public  class WebConfig implements WebMvcConfigurer {

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry){
        registry.addResourceHandler("/html/**").addResourceLocations("classpath:/html/");
        registry.addResourceHandler("/diagram-viewer/**").addResourceLocations("classpath:/html/");
        registry.addResourceHandler("/editor-app/**").addResourceLocations("classpath:/html/");
        registry.addResourceHandler("/js/**").addResourceLocations("classpath:/js/");
        registry.addResourceHandler("/css/**").addResourceLocations("classpath:/css/");
    }
}

获取json数据的请求

@RestController
public class Test01Controller {

    @RequestMapping("/editor/stencilset")
    public String test01(){
        InputStream stream=this.getClass().getClassLoader().getResourceAsStream("stencilset.json");
        try{
            return IOUtils.toString(stream,"utf-8");
        }catch (Exception e){

        }
        return null;
    }
}

在线设计流程新建model

@Controller
@RequestMapping("model")
public class ModelTest {

    @RequestMapping("create")
    public void createModel(HttpServletRequest request, HttpServletResponse response){
        try{
            String modelName = "modelName6";
            String modelKey = "modelKey66";
            String description = "modelKey666";

            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() + "/html/modeler.html?modelId=" + modelData.getId());
        }catch (Exception e){
        }
    }

}

 画流程图保存请求

    @RequestMapping("/model/{modelId}/save")
    @ResponseStatus(HttpStatus.OK)
    public void saveModel(@PathVariable String modelId, HttpServletRequest req, HttpServletResponse resp) {
        try {
            Model model = this.repositoryService.getModel(modelId);
            ObjectNode modelJson = (ObjectNode)this.objectMapper.readTree(model.getMetaInfo());
            modelJson.put("name", req.getParameter("name"));
            modelJson.put("description",req.getParameter("description"));
            model.setMetaInfo(modelJson.toString());
            model.setName(req.getParameter("name"));
            this.repositoryService.saveModel(model);
            this.repositoryService.addModelEditorSource(model.getId(), (req.getParameter("json_xml")).getBytes("utf-8"));
            InputStream svgStream = new ByteArrayInputStream((req.getParameter("svg_xml")).getBytes("utf-8"));
            TranscoderInput input = new TranscoderInput(svgStream);
            PNGTranscoder transcoder = new PNGTranscoder();
            ByteArrayOutputStream outStream = new ByteArrayOutputStream();
            TranscoderOutput output = new TranscoderOutput(outStream);
            transcoder.transcode(input, output);
            byte[] result = outStream.toByteArray();
            System.out.println(new String(result,"utf-8"));
            this.repositoryService.addModelEditorSourceExtra(model.getId(), result);
            outStream.close();
        } catch (Exception var11) {
            LOGGER.error("Error saving model", var11);
            throw new ActivitiException("Error saving model", var11);
        }
    }

流程图查看的请求

   @RequestMapping(
            value = {"/model/{modelId}/json"},
            method = {RequestMethod.GET},
            produces = {"application/json"}
    )
    public ObjectNode getEditorJson(@PathVariable String modelId) {
        ObjectNode modelNode = null;
        Model model = this.repositoryService.getModel(modelId);
        if (model != null) {
            try {
                if (StringUtils.isNotEmpty(model.getMetaInfo())) {
                    modelNode = (ObjectNode)this.objectMapper.readTree(model.getMetaInfo());
                } else {
                    modelNode = this.objectMapper.createObjectNode();
                    modelNode.put("name", model.getName());
                }

                modelNode.put("modelId", model.getId());
                ObjectNode editorJsonNode = (ObjectNode)this.objectMapper.readTree(new String(this.repositoryService.getModelEditorSource(model.getId()), "utf-8"));
                modelNode.put("model", editorJsonNode);
            } catch (Exception var5) {
                LOGGER.error("Error creating model JSON", var5);
                throw new ActivitiException("Error creating model JSON", var5);
            }
        }

        return modelNode;
    }

流程图保存成功以后这张表会有数据

 

 流程图部署以后会出现bomn结尾的文件，

 部署流程的请求，根据modelId

    @RequestMapping("/model/test02")
    public void test02(Object obj) throws Exception {
        Model modelData = repositoryService.getModel("40001");
        ObjectNode modelNode = (ObjectNode) new ObjectMapper().readTree(repositoryService.getModelEditorSource(modelData.getId()));
        byte[] bpmnBytes = null;

        BpmnModel model = new BpmnJsonConverter().convertToBpmnModel(modelNode);
        bpmnBytes = new BpmnXMLConverter().convertToXML(model);

        String processName = modelData.getName() + ".bpmn";

        Deployment deployment = repositoryService.createDeployment()
                .name(modelData.getName()).addString(processName, new String(bpmnBytes,"UTF-8"))
                .deploy();

    }

根据这个表的key进行流程启动，指定审批人

随意写了一些demo。。。。

重点步骤 就是新建model,保存提交部署流程，启动流程指定审批人，审批提交