爱威尔-activiti学习由浅入深03

我先把 请假流程.bpmn 文件的内容拿出来： 
 
 <?xml version=”1.0″ encoding=”UTF-8″?> 
 <definitions xmlns=”http://www.omg.org/spec/BPMN/20100524/MODEL” xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance” xmlns:xsd=”http://www.w3.org/2001/XMLSchema” xmlns:activiti=”http://activiti.org/bpmn” xmlns:bpmndi=”http://www.omg.org/spec/BPMN/20100524/DI” xmlns:omgdc=”http://www.omg.org/spec/DD/20100524/DC” xmlns:omgdi=”http://www.omg.org/spec/DD/20100524/DI” typeLanguage=”http://www.w3.org/2001/XMLSchema” expressionLanguage=”http://www.w3.org/1999/XPath” targetNamespace=”http://www.activiti.org/test”> 
 <process id=”leave” name=”请假流程” isExecutable=”true”> 
 <startEvent id=”startevent” name=”开始” activiti:initiator=”applyuser”></startEvent> 
 <userTask id=”depLeaderAduit” name=”部门领导审批” activiti:candidateUsers=”1000″></userTask> 
 <sequenceFlow id=”flow1″ sourceRef=”startevent” targetRef=”depLeaderAduit”></sequenceFlow> 
 <exclusiveGateway id=”exclusivegateway1″ name=”Exclusive Gateway”></exclusiveGateway> 
 <sequenceFlow id=”flow2″ sourceRef=”depLeaderAduit” targetRef=”exclusivegateway1″></sequenceFlow> 
 <userTask id=”hrLeaderAduit” name=”人事资源审批” activiti:candidateUsers=”1000,1001″></userTask> 
 <userTask id=”usertask1″ name=”调整申请” activiti:assignee=”${applyuser}”></userTask> 
 <sequenceFlow id=”flow3″ name=”同意” sourceRef=”exclusivegateway1″ targetRef=”hrLeaderAduit”> 
 <conditionExpression xsi:type=”tFormalExpression”><![CDATA[${departLeaderPass}]]></conditionExpression> 
 </sequenceFlow> 
 <sequenceFlow id=”flow4″ name=”不同意” sourceRef=”exclusivegateway1″ targetRef=”usertask1″> 
 <conditionExpression xsi:type=”tFormalExpression”><![CDATA[${!departLeaderPass}]]></conditionExpression> 
 </sequenceFlow> 
 <exclusiveGateway id=”exclusivegateway2″ name=”Exclusive Gateway”></exclusiveGateway> 
 <sequenceFlow id=”flow5″ sourceRef=”usertask1″ targetRef=”exclusivegateway2″></sequenceFlow> 
 <sequenceFlow id=”flow6″ sourceRef=”exclusivegateway2″ targetRef=”depLeaderAduit”></sequenceFlow> 
 <exclusiveGateway id=”exclusivegateway3″ name=”Exclusive Gateway”></exclusiveGateway> 
 <sequenceFlow id=”flow7″ sourceRef=”hrLeaderAduit” targetRef=”exclusivegateway3″></sequenceFlow> 
 <userTask id=”usertask2″ name=”销假” activiti:assignee=”${applyuser}”></userTask> 
 <sequenceFlow id=”flow8″ name=”同意” sourceRef=”exclusivegateway3″ targetRef=”usertask2″> 
 <conditionExpression xsi:type=”tFormalExpression”><![CDATA[${hrLeaderPass}]]></conditionExpression> 
 </sequenceFlow> 
 <sequenceFlow id=”flow9″ name=”不同意” sourceRef=”exclusivegateway3″ targetRef=”usertask1″> 
 <conditionExpression xsi:type=”tFormalExpression”><![CDATA[${!hrLeaderPass}]]></conditionExpression> 
 </sequenceFlow> 
 <exclusiveGateway id=”exclusivegateway4″ name=”Exclusive Gateway”></exclusiveGateway> 
 <sequenceFlow id=”flow10″ sourceRef=”usertask2″ targetRef=”exclusivegateway4″></sequenceFlow> 
 <serviceTask id=”mailtask1″ name=”Mail Task” activiti:type=”mail”> 
 <extensionElements> 
 <activiti:field name=”subject”> 
 <activiti:string><![CDATA[请假流程回执单]]></activiti:string> 
 </activiti:field> 
 <activiti:field name=”to”> 
 <activiti:expression>${to}</activiti:expression> 
 </activiti:field> 
 <activiti:field name=”from”> 
 <activiti:expression>${form}</activiti:expression> 
 </activiti:field> 
 <activiti:field name=”charset”> 
 <activiti:string><![CDATA[utf8]]></activiti:string> 
 </activiti:field> 
 <activiti:field name=”html”> 
 <activiti:expression>${applyuser},您好，您的请假已处理完毕</activiti:expression> 
 </activiti:field> 
 </extensionElements> 
 </serviceTask> 
 <endEvent id=”endevent1″ name=”结束”></endEvent> 
 <sequenceFlow id=”flow11″ name=”是” sourceRef=”exclusivegateway4″ targetRef=”mailtask1″> 
 <conditionExpression xsi:type=”tFormalExpression”><![CDATA[${need}]]></conditionExpression> 
 </sequenceFlow> 
 <sequenceFlow id=”flow12″ name=”否” sourceRef=”exclusivegateway4″ targetRef=”endevent1″> 
 <conditionExpression xsi:type=”tFormalExpression”><![CDATA[${!need}]]></conditionExpression> 
 </sequenceFlow> 
 </process> 
 <bpmndi:BPMNDiagram id=”BPMNDiagram_leave”> 
 <bpmndi:BPMNPlane bpmnElement=”leave” id=”BPMNPlane_leave”> 
 <bpmndi:BPMNShape bpmnElement=”startevent” id=”BPMNShape_startevent”> 
 <omgdc:Bounds height=”35.0″ width=”35.0″ x=”40.0″ y=”144.0″></omgdc:Bounds> 
 </bpmndi:BPMNShape> 
 <bpmndi:BPMNShape bpmnElement=”depLeaderAduit” id=”BPMNShape_depLeaderAduit”> 
 <omgdc:Bounds height=”55.0″ width=”105.0″ x=”110.0″ y=”135.0″></omgdc:Bounds> 
 </bpmndi:BPMNShape> 
 <bpmndi:BPMNShape bpmnElement=”exclusivegateway1″ id=”BPMNShape_exclusivegateway1″> 
 <omgdc:Bounds height=”40.0″ width=”40.0″ x=”260.0″ y=”142.0″></omgdc:Bounds> 
 </bpmndi:BPMNShape> 
 <bpmndi:BPMNShape bpmnElement=”hrLeaderAduit” id=”BPMNShape_hrLeaderAduit”> 
 <omgdc:Bounds height=”55.0″ width=”105.0″ x=”368.0″ y=”135.0″></omgdc:Bounds> 
 </bpmndi:BPMNShape> 
 <bpmndi:BPMNShape bpmnElement=”usertask1″ id=”BPMNShape_usertask1″> 
 <omgdc:Bounds height=”55.0″ width=”105.0″ x=”228.0″ y=”262.0″></omgdc:Bounds> 
 </bpmndi:BPMNShape> 
 <bpmndi:BPMNShape bpmnElement=”exclusivegateway2″ id=”BPMNShape_exclusivegateway2″> 
 <omgdc:Bounds height=”40.0″ width=”40.0″ x=”142.0″ y=”269.0″></omgdc:Bounds> 
 </bpmndi:BPMNShape> 
 <bpmndi:BPMNShape bpmnElement=”exclusivegateway3″ id=”BPMNShape_exclusivegateway3″> 
 <omgdc:Bounds height=”40.0″ width=”40.0″ x=”400.0″ y=”269.0″></omgdc:Bounds> 
 </bpmndi:BPMNShape> 
 <bpmndi:BPMNShape bpmnElement=”usertask2″ id=”BPMNShape_usertask2″> 
 <omgdc:Bounds height=”55.0″ width=”105.0″ x=”497.0″ y=”262.0″></omgdc:Bounds> 
 </bpmndi:BPMNShape> 
 <bpmndi:BPMNShape bpmnElement=”exclusivegateway4″ id=”BPMNShape_exclusivegateway4″> 
 <omgdc:Bounds height=”40.0″ width=”40.0″ x=”529.0″ y=”169.0″></omgdc:Bounds> 
 </bpmndi:BPMNShape> 
 <bpmndi:BPMNShape bpmnElement=”mailtask1″ id=”BPMNShape_mailtask1″> 
 <omgdc:Bounds height=”55.0″ width=”105.0″ x=”497.0″ y=”80.0″></omgdc:Bounds> 
 </bpmndi:BPMNShape> 
 <bpmndi:BPMNShape bpmnElement=”endevent1″ id=”BPMNShape_endevent1″> 
 <omgdc:Bounds height=”35.0″ width=”35.0″ x=”640.0″ y=”172.0″></omgdc:Bounds> 
 </bpmndi:BPMNShape> 
 <bpmndi:BPMNEdge bpmnElement=”flow1″ id=”BPMNEdge_flow1″> 
 <omgdi:waypoint x=”75.0″ y=”161.0″></omgdi:waypoint> 
 <omgdi:waypoint x=”110.0″ y=”162.0″></omgdi:waypoint> 
 </bpmndi:BPMNEdge> 
 <bpmndi:BPMNEdge bpmnElement=”flow2″ id=”BPMNEdge_flow2″> 
 <omgdi:waypoint x=”215.0″ y=”162.0″></omgdi:waypoint> 
 <omgdi:waypoint x=”260.0″ y=”162.0″></omgdi:waypoint> 
 </bpmndi:BPMNEdge> 
 <bpmndi:BPMNEdge bpmnElement=”flow3″ id=”BPMNEdge_flow3″> 
 <omgdi:waypoint x=”300.0″ y=”162.0″></omgdi:waypoint> 
 <omgdi:waypoint x=”368.0″ y=”162.0″></omgdi:waypoint> 
 <bpmndi:BPMNLabel> 
 <omgdc:Bounds height=”14.0″ width=”24.0″ x=”310.0″ y=”162.0″></omgdc:Bounds> 
 </bpmndi:BPMNLabel> 
 </bpmndi:BPMNEdge> 
 <bpmndi:BPMNEdge bpmnElement=”flow4″ id=”BPMNEdge_flow4″> 
 <omgdi:waypoint x=”280.0″ y=”182.0″></omgdi:waypoint> 
 <omgdi:waypoint x=”280.0″ y=”247.0″></omgdi:waypoint> 
 <omgdi:waypoint x=”280.0″ y=”262.0″></omgdi:waypoint> 
 <bpmndi:BPMNLabel> 
 <omgdc:Bounds height=”14.0″ width=”36.0″ x=”290.0″ y=”182.0″></omgdc:Bounds> 
 </bpmndi:BPMNLabel> 
 </bpmndi:BPMNEdge> 
 <bpmndi:BPMNEdge bpmnElement=”flow5″ id=”BPMNEdge_flow5″> 
 <omgdi:waypoint x=”228.0″ y=”289.0″></omgdi:waypoint> 
 <omgdi:waypoint x=”182.0″ y=”289.0″></omgdi:waypoint> 
 </bpmndi:BPMNEdge> 
 <bpmndi:BPMNEdge bpmnElement=”flow6″ id=”BPMNEdge_flow6″> 
 <omgdi:waypoint x=”162.0″ y=”269.0″></omgdi:waypoint> 
 <omgdi:waypoint x=”162.0″ y=”190.0″></omgdi:waypoint> 
 </bpmndi:BPMNEdge> 
 <bpmndi:BPMNEdge bpmnElement=”flow7″ id=”BPMNEdge_flow7″> 
 <omgdi:waypoint x=”420.0″ y=”190.0″></omgdi:waypoint> 
 <omgdi:waypoint x=”420.0″ y=”269.0″></omgdi:waypoint> 
 </bpmndi:BPMNEdge> 
 <bpmndi:BPMNEdge bpmnElement=”flow8″ id=”BPMNEdge_flow8″> 
 <omgdi:waypoint x=”440.0″ y=”289.0″></omgdi:waypoint> 
 <omgdi:waypoint x=”497.0″ y=”289.0″></omgdi:waypoint> 
 <bpmndi:BPMNLabel> 
 <omgdc:Bounds height=”14.0″ width=”24.0″ x=”450.0″ y=”289.0″></omgdc:Bounds> 
 </bpmndi:BPMNLabel> 
 </bpmndi:BPMNEdge> 
 <bpmndi:BPMNEdge bpmnElement=”flow9″ id=”BPMNEdge_flow9″> 
 <omgdi:waypoint x=”400.0″ y=”289.0″></omgdi:waypoint> 
 <omgdi:waypoint x=”333.0″ y=”289.0″></omgdi:waypoint> 
 <bpmndi:BPMNLabel> 
 <omgdc:Bounds height=”14.0″ width=”36.0″ x=”361.0″ y=”312.0″></omgdc:Bounds> 
 </bpmndi:BPMNLabel> 
 </bpmndi:BPMNEdge> 
 <bpmndi:BPMNEdge bpmnElement=”flow10″ id=”BPMNEdge_flow10″> 
 <omgdi:waypoint x=”549.0″ y=”262.0″></omgdi:waypoint> 
 <omgdi:waypoint x=”549.0″ y=”209.0″></omgdi:waypoint> 
 </bpmndi:BPMNEdge> 
 <bpmndi:BPMNEdge bpmnElement=”flow11″ id=”BPMNEdge_flow11″> 
 <omgdi:waypoint x=”549.0″ y=”169.0″></omgdi:waypoint> 
 <omgdi:waypoint x=”549.0″ y=”135.0″></omgdi:waypoint> 
 <bpmndi:BPMNLabel> 
 <omgdc:Bounds height=”14.0″ width=”12.0″ x=”559.0″ y=”169.0″></omgdc:Bounds> 
 </bpmndi:BPMNLabel> 
 </bpmndi:BPMNEdge> 
 <bpmndi:BPMNEdge bpmnElement=”flow12″ id=”BPMNEdge_flow12″> 
 <omgdi:waypoint x=”569.0″ y=”189.0″></omgdi:waypoint> 
 <omgdi:waypoint x=”640.0″ y=”189.0″></omgdi:waypoint> 
 <bpmndi:BPMNLabel> 
 <omgdc:Bounds height=”14.0″ width=”12.0″ x=”579.0″ y=”189.0″></omgdc:Bounds> 
 </bpmndi:BPMNLabel> 
 </bpmndi:BPMNEdge> 
 </bpmndi:BPMNPlane> 
 </bpmndi:BPMNDiagram> 
 </definitions> 
 
 各位完全不必要担心自己看不懂这些东西，稍安勿躁，你只需把它复制到你的上面就OK了。 
 
 <img src="7/20150103153314_198.png" alt=""> 
 
 你会看到它可以变成这样，当你再去点击每个图形时你似乎看懂了一点点，好的尽量去理解它，我现在不准备解释什么，我们去做另一件事情，将其生成一个图片，看图： 
 
 <img src="7/20150103153342_854.png" alt=""> 
 
 这时候你就有了两个文件：请假流程.bpmn和请假流程.png 
 
 我们要干嘛呢，我们要上传并部署这个流程，你似乎觉得有些疯狂，我还不会画图呢，哦朋友们不要着急，你会有答案的。 
 
 我还是想把程序拿出来： 
 /** 
 * 上传并部署 
 * @param uploadfile 
 * @param session 
 * @return 
 * @throws IOException 
 */ 
 @RequestMapping(“/upload”) 
 public String upload(@RequestParam MultipartFile uploadfile,HttpSession session) throws IOException { 
 if (!uploadfile.isEmpty()) { 
 String realPath = session.getServletContext().getRealPath(“/uploadfile”); 
 byte[] data = uploadfile.getBytes(); 
 File out = new File(realPath, uploadfile.getOriginalFilename()); 
 FileUtils.writeByteArrayToFile(out, data); 
 if(FilenameUtils.getExtension(uploadfile.getOriginalFilename()).equals(“zip”) || FilenameUtils.getExtension(uploadfile.getOriginalFilename()).equals(“bar”)) { 
 ZipInputStream zip = newZipInputStream(uploadfile.getInputStream()); 
 //部署 
 //添加数据表有act_re_deployment(部署信息表)，act_re_procdef(流程定义)，act_ge_bytearray(部署信息资源表) 
 repositoryService.createDeployment().name(uploadfile.getOriginalFilename()).addZipInputStream(zip).deploy(); 
 } 
 } 
 return “”; 
 } 
 
 
 看着程序你会发现我们要上传的是压缩文件，对就是把那两个文件压缩在一起，如果你看了用户手册你会发现有很多上传的方法这只是其中的一种，你可以看着用户手册举一反三了。 
 
 至于你的系统怎么完成这一步你也可以按照自己的处理方法办，总之要把画好的流程图上传到数据库里面，这时候涉及到的数据库表我也列出来了： 
 act_re_deployment(部署信息表) 
 act_re_procdef(流程定义) 
 act_ge_bytearray(部署信息资源表) 
 
 这里要注意的是：如果你用360好压或rar或7-zip 来压缩文件记着文件名不能有中文 
 如果你想使用中文名，我给你个好东西： 
 package com.weir.test; 
 import java.io.BufferedInputStream; 
 import java.io.BufferedOutputStream; 
 import java.io.File; 
 import java.io.FileInputStream; 
 import java.io.FileOutputStream; 
 import java.io.IOException; 
 import java.util.zip.ZipOutputStream; 
 
 import org.apache.tools.ant.Project; 
 import org.apache.tools.ant.taskdefs.Expand; 
 import org.apache.tools.zip.ZipEntry; 
 
 public class ZipUtil { 
 
 private static final String ENCODE = “UTF-8″; 
 
 public static void zip(String inputFilePath, String zipFileName) { 
 
 File inputFile = new File(inputFilePath); 
 if (!inputFile.exists()) 
 throw new RuntimeException(“原始文件不存在!!!”); 
 File basetarZipFile = new File(zipFileName).getParentFile(); 
 if (!basetarZipFile.exists() && !basetarZipFile.mkdirs()) 
 throw new RuntimeException(“目标文件无法创建!!!”); 
 BufferedOutputStream bos = null; 
 FileOutputStream out = null; 
 ZipOutputStream zOut = null; 
 try { 
 // 创建文件输出对象out,提示:注意中文支持 
 out = new FileOutputStream(new String(zipFileName.getBytes(ENCODE))); 
 bos = new BufferedOutputStream(out); 
 // 將文件輸出ZIP输出流接起来 
 zOut = new ZipOutputStream(bos); 
 zip(zOut, inputFile, inputFile.getName()); 
 CloseIoUtil.closeAll(zOut, bos, out); 
 
 } catch (Exception e) { 
 e.printStackTrace(); 
 } 
 } 
 
 private static void zip(ZipOutputStream zOut, File file, String base) { 
 
 try { 
 // 如果文件句柄是目录 
 if (file.isDirectory()) { 
 // 获取目录下的文件 
 File[] listFiles = file.listFiles(); 
 // 建立ZIP条目 
 //zOut.putNextEntry(new ZipEntry(base + “/”)); 
 //base = (base.length() == 0 ? “” : base + “/”); 
 if (listFiles != null && listFiles.length > 0) 
 // 遍历目录下文件 
 for (File f : listFiles) 
 // 递归进入本方法 
 zip(zOut, f, f.getName()); 
 } 
 // 如果文件句柄是文件 
 else { 
 if (base == “”) { 
 base = file.getName(); 
 } 
 // 填入文件句柄 
 zOut.putNextEntry(new ZipEntry(base)); 
 // 开始压缩 
 // 从文件入流读,写入ZIP 出流 
 writeFile(zOut, file); 
 } 
 
 } catch (Exception e) { 
 e.printStackTrace(); 
 } 
 } 
 
 private static void writeFile(ZipOutputStream zOut, File file) 
 throws IOException { 
 
 FileInputStream in = null; 
 BufferedInputStream bis = null; 
 in = new FileInputStream(file); 
 bis = new BufferedInputStream(in); 
 int len = 0; 
 byte[] buff = new byte[2048]; 
 while ((len = bis.read(buff)) != -1) 
 zOut.write(buff, 0, len); 
 zOut.flush(); 
 CloseIoUtil.closeAll(bis, in); 
 } 
 
 /**** 
 * 解压 
 * 
 * @param zipPath 
 *            zip文件路径 
 * @param destinationPath 
 *            解压的目的地点 
 * @param ecode 
 *            文件名的编码字符集 
 */ 
 public static void unZip(String zipPath, String destinationPath) { 
 
 File zipFile = new File(zipPath); 
 if (!zipFile.exists()) 
 throw new RuntimeException(“zip file ” + zipPath 
 + ” does not exist.”); 
 
 Project proj = new Project(); 
 Expand expand = new Expand(); 
 expand.setProject(proj); 
 expand.setTaskType(“unzip”); 
 expand.setTaskName(“unzip”); 
 expand.setSrc(zipFile); 
 expand.setDest(new File(destinationPath)); 
 expand.setEncoding(ENCODE); 
 expand.execute(); 
 System.out.println(“unzip done!!!”); 
 } 
 
 public static void main(String[] args) { 
 
 String dir = new String(“E:\\zip”); 
 //               dir = new String(“C:\\Users\\Administrator\\Desktop\\zip\\请假流程.png”); 
 //               zip(dir, “C:/Users/Administrator/Desktop/zip01/请假流程.zip”); 
 zip(dir, “E:/zip/请假流程.zip”); 
 //               unZip(“f:/BZBXB/zipant.zip”, “f:/XX/xx/”); 
 } 
 } 
 
 
 利用这个小程序来压缩文件，不管你的文件名是否是中文都可以上传部署。 
 
 上传部署完之后我们看看那三张表里面发生了什么： 
 
 <img src="7/20150103153431_618.png" alt=""> 
 
 我们再回过头来看我之前拿出来的xml文件，我截取了一小段： 
 
 targetNamespace=”http://www.activiti.org/test”> 
 
 我们去对照act_re_procdef（流程定义）category_、name_、key_ 等大家应该很明白了吧。 
 这里大家消化消化，图文并茂的更容易理解，然后再用自己的方式消化它。