Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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.glaf.jbpm.web.springmvc; import java.io.StringWriter; import java.io.Writer; import java.util.Map; import java.util.Map.Entry; import java.util.Set; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.lang3.StringUtils; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.servlet.ModelAndView; import com.alibaba.fastjson.JSONObject; import com.glaf.core.config.CustomProperties; import com.glaf.core.config.ViewProperties; import com.glaf.core.util.JsonUtils; import com.glaf.core.util.LogUtils; import com.glaf.core.util.RequestUtils; import com.glaf.template.util.TemplateUtils; import com.glaf.jbpm.container.ProcessContainer; import com.glaf.jbpm.context.ProcessContext; import com.glaf.jbpm.datafield.DataField; @Controller("/jbpm/start") @RequestMapping("/jbpm/start") public class MxJbpmStartProcessController { protected final static Log logger = LogFactory.getLog(MxJbpmStartProcessController.class); public MxJbpmStartProcessController() { } @RequestMapping public ModelAndView startProcess(HttpServletRequest request, HttpServletResponse response) throws Exception { Map<String, Object> paramMap = RequestUtils.getParameterMap(request); logger.debug(paramMap); String json = RequestUtils.getStringValue(request, "json"); String rowId = RequestUtils.getStringValue(request, "rowId"); String processName = RequestUtils.getStringValue(request, "processName"); String actorId = RequestUtils.getActorId(request); ProcessContainer container = ProcessContainer.getContainer(); Long processInstanceId = null; if (StringUtils.isNotEmpty(rowId) && StringUtils.isNotEmpty(processName) && StringUtils.isNotEmpty(actorId)) { ProcessContext ctx = new ProcessContext(); ctx.setRowId(rowId); ctx.setActorId(actorId); ctx.setTitle("???" + rowId); ctx.setProcessName(processName); /** * ??json?.<br> * {money:100000,day:5,pass:true,deptId:"123", roleId:"R001"} */ if (StringUtils.isNotEmpty(json)) { Map<String, Object> jsonMap = JsonUtils.decode(json); if (jsonMap != null && jsonMap.size() > 0) { Set<Entry<String, Object>> entrySet = jsonMap.entrySet(); for (Entry<String, Object> entry : entrySet) { String name = entry.getKey(); Object value = entry.getValue(); if (name != null && value != null) { if (name != null && value != null) { DataField dataField = new DataField(); dataField.setName(name); dataField.setValue(value); ctx.addDataField(dataField); } } } } } try { processInstanceId = container.startProcess(ctx); if (processInstanceId != null) { request.setAttribute("processInstanceId", processInstanceId); request.setAttribute("statusCode", 200); request.setAttribute("message", ViewProperties.getString("res_submit_ok")); } else { request.setAttribute("statusCode", 500); request.setAttribute("message", ViewProperties.getString("res_submit_error")); } logger.debug("processInstanceId:" + processInstanceId); } catch (Exception ex) { request.setAttribute("statusCode", 500); request.setAttribute("message", ViewProperties.getString("res_submit_error")); if (LogUtils.isDebug()) { ex.printStackTrace(); logger.debug(ex); } } } /** * ??jsonxml???<br> * 200-? <br> * 500-<br> */ String responseDataType = RequestUtils.getStringValue(request, "responseDataType"); if (StringUtils.equals(responseDataType, "json")) { String encoding = request.getParameter("encoding"); if (encoding == null) { encoding = "UTF-8"; } request.setCharacterEncoding(encoding); response.setCharacterEncoding(encoding); response.setContentType("text/plain;charset=" + encoding); Map<String, Object> jsonMap = new java.util.HashMap<String, Object>(); if (processInstanceId != null) { jsonMap.put("statusCode", 200); jsonMap.put("success", "true"); jsonMap.put("data", ViewProperties.getString("res_submit_ok")); jsonMap.put("message", ViewProperties.getString("res_submit_ok")); } else { jsonMap.put("statusCode", 500); jsonMap.put("success", "false"); jsonMap.put("data", ViewProperties.getString("res_submit_error")); jsonMap.put("message", ViewProperties.getString("res_submit_error")); } JSONObject object = new JSONObject(jsonMap); response.getWriter().write(object.toString()); return null; } else if (StringUtils.equals(responseDataType, "xml")) { String encoding = request.getParameter("encoding"); if (encoding == null) { encoding = "UTF-8"; } request.setCharacterEncoding(encoding); response.setCharacterEncoding(encoding); response.setContentType("text/xml;charset=" + encoding); StringBuffer buffer = new StringBuffer(); buffer.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>"); buffer.append("<response>"); if (processInstanceId != null) { buffer.append("\n <statusCode>200</statusCode>"); buffer.append("\n <message>").append(ViewProperties.getString("res_submit_ok")) .append("</message>"); } else { buffer.append("\n <statusCode>500</statusCode>"); buffer.append("\n <message>").append(ViewProperties.getString("res_submit_error")) .append("</message>"); } buffer.append("\n</response>"); response.getWriter().write(buffer.toString()); return null; } /** * ?????<br> * ?????_start_template??jbpm_start_template * WEB-INF\conf\extension?? */ String templateId = RequestUtils.getStringValue(request, "x_templateId"); if (StringUtils.isEmpty(templateId)) { templateId = CustomProperties.getString(processName + "_start_template"); } if (StringUtils.isEmpty(templateId)) { templateId = CustomProperties.getString("jbpm_start_template"); } if (StringUtils.isNotEmpty(templateId)) { Map<String, Object> context = new java.util.HashMap<String, Object>(); context.putAll(paramMap); context.put("actorId", actorId); context.put("processInstanceId", processInstanceId); context.put("contextPath", request.getContextPath()); if (processInstanceId != null) { context.put("statusCode", 200); context.put("message", ViewProperties.getString("res_submit_ok")); } else { context.put("statusCode", 500); context.put("message", ViewProperties.getString("res_submit_error")); } try { logger.debug(context); Writer writer = new StringWriter(); TemplateUtils.evaluate(templateId, context, writer); request.setAttribute("templateScript", writer.toString()); String encoding = request.getParameter("encoding"); if (encoding == null) { encoding = "UTF-8"; } request.setCharacterEncoding(encoding); response.setCharacterEncoding(encoding); response.setContentType("text/html;charset=" + encoding); response.getWriter().write(writer.toString()); return null; } catch (Exception ex) { if (LogUtils.isDebug()) { ex.printStackTrace(); logger.debug(ex); } } } String view = request.getParameter("view"); if (StringUtils.isNotEmpty(view)) { return new ModelAndView(view); } String x_view = ViewProperties.getString("jbpm_start.startProcess"); if (StringUtils.isNotEmpty(x_view)) { return new ModelAndView(x_view); } return new ModelAndView("/jbpm/start"); } }