activiti自定义流程之整合(五):启动流程时获取自定义表单

来源:互联网 发布:数据挖掘目的 编辑:程序博客网 时间:2024/05/19 14:55
流程定义部署之后,自然就是流程定义列表了,但和前一节一样的是,这里也是和之前单独的activiti没什么区别,因此也不多说。我们先看看列表页面以及对应的代码,然后在一步步说明点击启动按钮时如何调用自定义的form表单。


流程定义列表页面如下:



对应的html代码:

<div id="logdiv1" ng-init="init();">     <p style="font-size:24px;margin:3px">流程列表</p>   <center>   <table border="1px" style="margin-top:1px;width:87%;font-size:14px;text-align:center;margin-top:1px;margin-left:2px;position:relative;float:left;" cellSpacing="0px" cellPadding="0px">      <tr style="background-color:#ccc">         <td>ID</td>         <td>NAME</td>         <td>DeploymentID</td>         <td>KEY</td>         <td>版本</td>         <td>resourceName</td>         <td>DiagramResourceName</td>         <td>操 作</td>      </tr>      <tr ng-repeat="process in processList | orderBy:'id'" >         <td>{{process.id}}</td>         <td>{{process.name}}</td>         <td>{{process.deploymentId}}</td>         <td>{{process.key}}</td>         <td>{{process.version}}</td>         <td>{{process.resourceName}}</td>         <td>{{process.diagramResourceName}}</td>         <td><a href="script:;" ng-click="toProcess(process)">启动</a>          <a href="script:;" ng-click="deleteProcess(process)">删除</a>          </td>      </tr>   </table>     <div id="handleTemplate" ></div>   </center>  </div>  


对应的angularjs代码:
angular.module('activitiApp')  .controller('processCtr', ['$rootScope','$scope','$http','$location', function($rootScope,$scope,$http,$location){  $scope.init=function(){        $http.post("./processList.do").success(function(result) {        if(result.isLogin==="yes"){        $rootScope.userName=result.userName;        $scope.processList=result.data;        }else{        $location.path("/login");        }        });}            //开始流程        $scope.toProcess= function(process){        $rootScope.process=process;        $('#handleTemplate').html('').dialog({        title:'流程名称[' + process.name + ']',    modal: true,    width: $.common.window.getClientWidth() * 0.6,    height: $.common.window.getClientHeight() * 0.9,    open: function() {    // 获取json格式的表单数据,就是流程定义中的所有field    readForm.call(this, process.deploymentId);    },    buttons: [{    text: '启动流程',    click: function() {    $("#handleTemplate").dialog("close");    sendStartupRequest();    setTimeout(function(){    window.location.href =("#/findFirstTask");    },1500);        }    }]    }).position({       //my: "center",       //at: "center",    offset:'300 300',       of: window,       collision:"fit"    });;    };    //读取流程启动表单    function readForm(deploymentId) {    var dialog = this;    // 读取启动时的表单    $.post('./getStartForm.do',deploymentId, function(result) {    // 获取的form是字符行,html格式直接显示在对话框内就可以了,然后用form包裹起来        $(dialog).append("<div class='formContent' />");    $('.formContent').html('').wrap("<form id='startform' class='formkey-form' method='post' />");        var $form = $('.formkey-form');    // 设置表单action    getStartFormAndStartProcess    $form.attr('action', './getStartFormAndStartProcess');    //设置部署的Id    $form.append("<input type='hidden' name='deploymentId' value="+deploymentId+">");    $form.append(result.form);    // 初始化日期组件    $form.find('.datetime').datetimepicker({               stepMinute: 5         });    $form.find('.date').datepicker();        // 表单验证    $form.validate($.extend({}, $.common.plugin.validator));    });    }        /**     * 提交表单     * @return {[type]} [description]     */    function sendStartupRequest() {    if ($(".formkey-form").valid()) {    var url = './getStartFormAndStartProcess.do';    var args = $('#startform').serialize();    $.post(url, args, function(data){    $("#handleTemplate").dialog("close");$location.path("/findFirstTask");    });    }    }        }])  


在上边的代码中就有需要注意的地方了,从代码中可以看到,当我们点击页面的启动按钮时,会触发toProcess方法,而这个方法就使用到了dialog对话框,对话框中显示的内容便是之前自定义的表单,从后台数据库中请求过来。


那么读取的时候发送了getStartForm.do的请求,后台对应的代码如下:
@RequestMapping(value = "/getStartForm.do", method = RequestMethod.POST, produces = "application/json;charset=utf-8")@ResponseBodypublic Object getStartForm(@RequestBody String deploymentId) {Map<String, String> map = new HashMap<String, String>();String deString = null;deString = deploymentId.replaceAll("=", "");String form = this.getStartForm1(deString);map.put("form", form);return map;}public String getStartForm1(String deploymentId) {String deString = null;deString = deploymentId.replaceAll("=", "");ProcessDefinition pd = repositoryService.createProcessDefinitionQuery().deploymentId(deString).singleResult();String form = (String) formService.getRenderedStartForm(pd.getId());return form;}




要说明的是这里之所以能使用formService.getRenderedStartForm方法,便是因为在上一节部署的时候进行了设置,否则这个方法是无法正常使用的。


那么这个对话框弹出界面视图如下:


需要注意的是dialog的css样式在jquery-ui.css中,不要忘了导入进来,当然了,也可以按自己的喜好修改。


那么填写好相关的数据点击提交,同过上边的js可以知道就走到了后台getStartFormAndStartProcess这里,启动流程实例:

/** * @throws XMLStreamException *             启动流程 *  * @author:tuzongxun * @Title: startProcess * @param @return * @return Object * @date Mar 17, 2016 2:06:34 PM * @throws */@RequestMapping(value = "/getStartFormAndStartProcess.do", method = RequestMethod.POST, produces = "application/json;charset=utf-8")@ResponseBodypublic Object startProcess1(HttpServletRequest req)throws XMLStreamException {Map<String, String[]> formMap = req.getParameterMap();String deploymentId = formMap.get("deploymentId")[0];// 拿到第一个data_1设置申请人String person1 = (String) formMap.get("data_1")[0];Map<String, String> map = new HashMap<String, String>();boolean isLogin = this.isLogin(req);if (isLogin) {if (deploymentId != null) {HttpSession session = req.getSession();String assginee = (String) session.getAttribute("userName");ProcessDefinition pd = repositoryService.createProcessDefinitionQuery().deploymentId(deploymentId).singleResult();String processDefinitionId = pd.getId();Map<String, String> formProperties = new HashMap<String, String>();Iterator<FlowElement> iterator1 = this.findFlow(processDefinitionId);// 取第一个节点,开始节点的行号String row = null;while (iterator1.hasNext()) {FlowElement flowElement = iterator1.next();row = flowElement.getXmlRowNumber() + "";break;}// 从request中读取参数然后转换Set<Entry<String, String[]>> entrySet = formMap.entrySet();for (Entry<String, String[]> entry : entrySet) {String key = entry.getKey();String value = entry.getValue()[0];if (!key.equals("deploymentId")) {String keyString = key + row;formProperties.put(keyString, value);}}formProperties.put("deploymentId", deploymentId);Iterator<FlowElement> iterator = this.findFlow(pd.getId());int i = 1;while (iterator.hasNext()) {FlowElement flowElement = iterator.next(); // 申请人if (flowElement.getClass().getSimpleName().equals("UserTask")&& i == 1) {UserTask userTask = (UserTask) flowElement;String assignee = userTask.getAssignee();int index1 = assignee.indexOf("{");int index2 = assignee.indexOf("}");formProperties.put(assignee.substring(index1 + 1, index2),person1);break;}}identityService.setAuthenticatedUserId(assginee);ProcessInstance processInstance = formService.submitStartFormData(processDefinitionId,formProperties);map.put("userName",(String) req.getSession().getAttribute("userName"));map.put("isLogin", "yes");map.put("result", "success");} else {map.put("result", "fail");}} else {map.put("isLogin", "no");}return map;}

而这里最重要的是对前台数据的处理,如果大家使用了ueditor插件,会发现他传递到后台的数据是存放在request中的一个map中,而map的key都是data_1、data_2、data_3的形式。


这样问题就来了,到后边对任务进行操作的时候,这些数据还是这样从data_1开始,那么如果我们原样保存到数据库,以后查询时自然就会有问题了,所以这里就根据每个流程中流程节点行号的唯一性进行了重新组合,然后把这些数据保存为流程变量。


1 0
原创粉丝点击