两篇调整Activiti Modeler到业务系统

2013-10-12

两篇整合Activiti Modeler到业务系统整合Activiti Modeler到业务系统（或BPM平台）http://www.kafeitu.me/ac

两篇整合Activiti Modeler到业务系统
整合Activiti Modeler到业务系统（或BPM平台）
http://www.kafeitu.me/activiti/2013/03/10/integrate-activiti-modeler.html

集成activiti-modeler 到自己的业务系统(集成流程跟踪-完美支持IE)
http://jhaij.iteye.com/blog/1871635

根据第二篇文章，整合成功;

FAQ:
1. 无法进入editor.
http://localhost:8080/YouPRJ/modeler/service/editor?id=2050，前提是这个id必需存在与act_re_model表里面，
那么，在调用这个之前，如何插入一条记录到这个表么?
待解决........
-------------
看到咖啡兔的例子，是先使用java保存到数据库，然后再打开editor, 保存的代码：
javascript: 一边保存，一边打开，同时保存后的页面又做reload, 很特别很有趣的做法，值得学习....

$(function() {    $('#create').button({    icons: {    primary: 'ui-icon-plus'    }    }).click(function() {    $('#createModelTemplate').dialog({    modal: true,    width: 500,    buttons: [{    text: '创建',    click: function() {    if (!$('#name').val()) {    alert('请填写名称！');    $('#name').focus();    return;    }                        setTimeout(function() {                            location.reload();                        }, 1000);    $('#modelForm').submit();    }    }]    });    });    });

@RequestMapping(value = "create", method = RequestMethod.POST)  public void create(@RequestParam("name") String name, @RequestParam("key") String key, @RequestParam("description") String description,          HttpServletRequest request, HttpServletResponse response) {    try {      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, name);      modelObjectNode.put(ModelDataJsonConstants.MODEL_REVISION, 1);      description = StringUtils.defaultString(description);      modelObjectNode.put(ModelDataJsonConstants.MODEL_DESCRIPTION, description);      modelData.setMetaInfo(modelObjectNode.toString());      modelData.setName(name);      modelData.setKey(StringUtils.defaultString(key));      repositoryService.saveModel(modelData);      repositoryService.addModelEditorSource(modelData.getId(), editorNode.toString().getBytes("utf-8"));      response.sendRedirect(request.getContextPath() + "/service/editor?id=" + modelData.getId());    } catch (Exception e) {      logger.error("创建模型失败：", e);    }  }

2. web editor保存的bpmn20文件到哪里去了？
     会更新ACT_RE_MODEL和ACT_GE_BYTEARRAY表，ACT_GE_BYTEARRAY表保存了图片和xml文件信息(其实是json格式的字符串)，并关联到ACT_RE_MODEL表。
     ACT_RE_MODEL
       说明：流程设计器设计流程后，保存数据到该表。
                EDITOR_SOURCE_VALUE_ID（流程文件放在ACT_GE_BYTEARRAY中的ID）；
                EDITOR_SOURCE_EXTRA_VALUE_ID(流程文件图像放在ACT_GE_BYTEARRAY中的ID)。

3. 如何去部署保存在数据库里面的ACT_RE_MODEL表里面的工作流？
    咖啡兔的源码： 创建，部署，删除，导出，遍历

package me.kafeitu.demo.activiti.web.workflow;import java.io.ByteArrayInputStream;import java.util.List;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;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.RepositoryService;import org.activiti.engine.repository.Deployment;import org.activiti.engine.repository.Model;import org.apache.commons.io.IOUtils;import org.apache.commons.lang3.StringUtils;import org.codehaus.jackson.JsonNode;import org.codehaus.jackson.map.ObjectMapper;import org.codehaus.jackson.node.ObjectNode;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Controller;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.RequestParam;import org.springframework.web.servlet.ModelAndView;import org.springframework.web.servlet.mvc.support.RedirectAttributes;/** * 流程模型控制器 *  * @author henryyan */@Controller@RequestMapping(value = "/workflow/model")public class ModelController {  protected Logger logger = LoggerFactory.getLogger(getClass());  @Autowired  RepositoryService repositoryService;  /**   * 模型列表   */  @RequestMapping(value = "list")  public ModelAndView modelList() {    ModelAndView mav = new ModelAndView("workflow/model-list");    List<Model> list = repositoryService.createModelQuery().list();    mav.addObject("list", list);    return mav;  }  /**   * 创建模型   */  @RequestMapping(value = "create", method = RequestMethod.POST)  public void create(@RequestParam("name") String name, @RequestParam("key") String key, @RequestParam("description") String description,          HttpServletRequest request, HttpServletResponse response) {    try {      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, name);      modelObjectNode.put(ModelDataJsonConstants.MODEL_REVISION, 1);      description = StringUtils.defaultString(description);      modelObjectNode.put(ModelDataJsonConstants.MODEL_DESCRIPTION, description);      modelData.setMetaInfo(modelObjectNode.toString());      modelData.setName(name);      modelData.setKey(StringUtils.defaultString(key));      repositoryService.saveModel(modelData);      repositoryService.addModelEditorSource(modelData.getId(), editorNode.toString().getBytes("utf-8"));      response.sendRedirect(request.getContextPath() + "/service/editor?id=" + modelData.getId());    } catch (Exception e) {      logger.error("创建模型失败：", e);    }  }  /**   * 根据Model部署流程   */  @RequestMapping(value = "deploy/{modelId}")  public String deploy(@PathVariable("modelId") String modelId, RedirectAttributes redirectAttributes) {    try {      Model modelData = repositoryService.getModel(modelId);      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() + ".bpmn20.xml";      Deployment deployment = repositoryService.createDeployment().name(modelData.getName()).addString(processName, new String(bpmnBytes)).deploy();      redirectAttributes.addFlashAttribute("message", "部署成功，部署ID=" + deployment.getId());    } catch (Exception e) {      logger.error("根据模型部署流程失败：modelId={}", modelId, e);    }    return "redirect:/workflow/model/list";  }  /**   * 导出model的xml文件   */  @RequestMapping(value = "export/{modelId}")  public void export(@PathVariable("modelId") 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);      IOUtils.copy(in, response.getOutputStream());      String filename = bpmnModel.getMainProcess().getId() + ".bpmn20.xml";      response.setHeader("Content-Disposition", "attachment; filename=" + filename);      response.flushBuffer();    } catch (Exception e) {      logger.error("导出model的xml文件失败：modelId={}", modelId, e);    }  }  @RequestMapping(value = "delete/{modelId}")  public String delete(@PathVariable("modelId") String modelId) {     repositoryService.deleteModel(modelId);    return "redirect:/workflow/model/list";  }}

问题：
1. java.lang.NoSuchMethodError: org.activiti.engine.impl.bpmn.diagram.ProcessDiagramCanvas.drawSequenceflowWithoutArrow(IIIIZZ)V
应为本地有两个工程的pom.xml都使用了

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

临时关闭或者删除一个工程，就不会提示这个错误了，至于为什么？我也搞不清楚。。。网上几乎没有人碰到这个错误，莫非是我太幸运???

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两篇调整Activiti Modeler到业务系统