1. 無法進入editor.
那麼,在調用這個之前,如何插入一條記錄到這個表麼?
待解決........
-------------
看到咖啡兔的例子,是先使用java儲存到資料庫,然後再打開editor, 儲存的代碼:
javascript: 一邊儲存,一邊打開,同時儲存後的頁面又做reload, 很特别很有趣的做法,值得學習....
$(function() {
$('#create').button({
icons: {
primary: 'ui-icon-plus'
}
}).click(function() {
$('#createModelTemplate').dialog({
modal: true,
width: 500,
buttons: [{
text: '建立',
click: function() {
if (!$('#name').val()) {
alert('請填寫名稱!');
$('#name').focus();
return;
}
setTimeout(function() {
location.reload();
}, 1000);
$('#modelForm').submit();
}
}]
});
});
});
@RequestMapping(value = "create", method = RequestMethod.POST)
publicvoid 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("建立模型失敗:", e);
}
}
2. web editor儲存的bpmn20檔案到哪裡去了?
會更新ACT_RE_MODEL和ACT_GE_BYTEARRAY表,ACT_GE_BYTEARRAY表儲存了圖檔和xml檔案資訊( 其實是json格式的字元串),并關聯到ACT_RE_MODEL表。
ACT_RE_MODEL
說明:流程設計器設計流程後,儲存資料到該表。
EDITOR_SOURCE_VALUE_ID(流程檔案放在ACT_GE_BYTEARRAY中的ID);
EDITOR_SOURCE_EXTRA_VALUE_ID(流程檔案圖像放在ACT_GE_BYTEARRAY中的ID)。
3. 如何去部署儲存在資料庫裡面的ACT_RE_MODEL表裡面的工作流?
咖啡兔的源碼: 建立,部署,删除,導出,周遊
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")
publicclass ModelController {
protected Logger logger = LoggerFactory.getLogger(getClass());
@Autowired
RepositoryService repositoryService;
* 模型清單
*/
@RequestMapping(value = "list")
public ModelAndView modelList() {
ModelAndView mav = new ModelAndView("workflow/model-list");
List list = repositoryService.createModelQuery().list();
mav.addObject("list", list);
return mav;
* 建立模型
* 根據Model部署流程
@RequestMapping(value = "deploy/{modelId}")
public String deploy(@PathVariable("modelId") String modelId, RedirectAttributes redirectAttributes) {
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());
logger.error("根據模型部署流程失敗:modelId={}", modelId, e);
return"redirect:/workflow/model/list";
* 導出model的xml檔案
@RequestMapping(value = "export/{modelId}")
publicvoid export(@PathVariable("modelId") String modelId, HttpServletResponse response) {
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();
logger.error("導出model的xml檔案失敗:modelId={}", modelId, e);
@RequestMapping(value = "delete/{modelId}")
public String delete(@PathVariable("modelId") String modelId) {
repositoryService.deleteModel(modelId);
}
本文轉自二郎三郎部落格園部落格,原文連結:http://www.cnblogs.com/haore147/p/7162003.html,如需轉載請自行聯系原作者