从A页面带参数跳转到B页面；进行解析，并显示数据，进行编辑

 A页面跳转时候的地址：
  parent.layer.open({
                 type: 2,
                 title:'新建草稿',
                 shadeClose: true,
                 shade: 0.8,
                 scrollbar: false,
                 maxmin:true,
                 area: ['100%', '100%'],
                 content:'../../backstage/html/taskManagement/workFlowDefine/newFlowDefine.html?modelId=' + data.id,
             });
 编辑页面：打开页面的时候，显示相关信息，并可以进行保存
     getParam();
     function getParam() {
         var url = location.search.substring(1);//location.search得到的是？后面的数据: ?modelId='+data.id,substring() 方法用于提取字符串中介于两个指定下标之间的字符;得到的是去掉?的部分
         if (url != null && url != undefined && url != "") {  //表示，如果有参数；且不等于空，则进行分割得到data.id;
             modelId = url.split('&')[0].split('=')[1];　　　 //data.id;　　　　
         }
     }
     if (modelId != null && modelId != undefined && modelId != "") {
         $.ajax({
             url: '/service/moddel/' + modelId + '/json',//如果前面不调用getParam()，则此处的modelId就是无定义的
             type: 'get',
             dataType: 'json',
             data: {},
             success: function (response, statusText) {
                 if (response.code == '0') {
                     $('.copyName').val(response.name);
                     $('.flag').val(response.key);                     categoryId = response.category;
                     $('.category select option').each(function () {
                         if ($(this).val() == response.category) {
                             $(this).attr("selected", true);
                         }
                     });
                     form.render('select');
                     if (response.description != null && response.description != undefined) {
                         $('.bigDescribe').text(response.description);
                     }
                     var dataNodes = response.nodes;
                     if (dataNodes != null && dataNodes != undefined) {
                         for (var i = 0; i < dataNodes.length; ++i) {
                             var dataNode = dataNodes[i];
                             nodes[dataNode.resourceId] = dataNode;
                             console.log(nodes[dataNode.resourceId]);
                             console.log(dataNode);
                             // “人工”
                             if (dataNode.stencilId == "UserTask") {
                                 var contentHuman = $('.contentHuman').html();
                                 $('.layui-timeline-item').css('display', 'block');
                                 contentHuman = "<div id='" + dataNode.resourceId + "' class='elementClass'>" + contentHuman + "</div>";
                                 $('#layui-timeline').append(contentHuman);
                                 var lists = $('.elementClass');
                                 for (var j = 0; j < lists.length; j++) {
                                     var list = lists.eq(j).prevAll().length;
                                     $('.elementClass').eq(j).find('span:eq(0)').text(list + 1);
                                 }
                                 layui.element.render('collapse');
                                 $('#' + dataNode.resourceId).find('.humanInput').val(dataNode.name);

                                 // “操作”
                             } else if (dataNode.stencilId == "ServiceTask") {
                                 var contentDo = $('.contentDo').html();
                                 $('.layui-timeline-item').css('display', 'block');
                                 contentDo = "<div id='" + dataNode.resourceId + "' class='elementClass'>" + contentDo + "</div>";
                                 $('#layui-timeline').append(contentDo);
                                 $('#' + dataNode.resourceId).find('.layui-colla-content').removeClass('layui-show');
                                 var lists = $('.elementClass');
                                 for (var j = 0; j < lists.length; j++) {
                                     var list = lists.eq(j).prevAll().length;
                                     $('.elementClass').eq(j).find('span:eq(0)').text(list + 1);
                                 }
                                 layui.element.render('collapse');
                                 $('#' + dataNode.resourceId).find('.toolId').val(dataNode.funcId)
                                 $('#' + dataNode.resourceId).find('.toolId').text(dataNode.funcId)
                                 $('#' + dataNode.resourceId).find('.doSelect').val(dataNode.funcId)
                                 $('#' + dataNode.resourceId).find('.doSelect').text(dataNode.name + "-" + dataNode.toolVersion)
                                 $('#' + dataNode.resourceId).find('.doname').val(dataNode.name + "-" + dataNode.toolVersion)
                                 console.log($('.toolId').val());
                                 if (dataNode.scriptLanguage != '2') {
                                     $('#' + dataNode.resourceId).find('.classOne').css('display', 'block');
                                     $('#' + dataNode.resourceId).find('.classTwo').css('display', 'none');
                                     $('#' + dataNode.resourceId).find('.layui-colla-content').addClass('layui-show');
                                     var svcFuncDfs = dataNode.svcFuncDfs;
                                     if (svcFuncDfs != null && svcFuncDfs != undefined) {
                                         $('#' + dataNode.resourceId).find('.tableHome').append('<table id="hostName_' + dataNode.resourceId + '"  lay-filter="hostTable" class="hostName"></table>')
                                         // 面板内容框“操作”选择主机后table表格内容渲染
                                         var index = table.render({
                                             elem: '#hostName_' + dataNode.resourceId
                                             , data: svcFuncDfs
                                             , limit: 100
                                             , cols: [[
                                                 {
                                                     field: 'serverName',
                                                     title: '目标主机',
                                                     width: 200,
                                                     align: 'center'
                                                 }, {
                                                     field: 'exeMachine',
                                                     title: '代理执行',
                                                     width: 182,
                                                     align: 'center'
                                                 }, {
                                                     field: 'exeUser',
                                                     title: '执行用户',
                                                     width: 180,
                                                     align: 'center'
                                                 },
                                                 {
                                                     title: '操作',
                                                     align: 'center',
                                                     toolbar: '#flinkbar',
                                                     width: 117
                                                 },

                                             ]]
                                             , id: 'hostName_id'
                                             , even: true
                                         });
                                     }
                                 } else {
                                     $('#' + dataNode.resourceId).find('.classTwo').css('display', 'block');
                                     $('#' + dataNode.resourceId).find('.classOne').css('display', 'none');
                                     $('#' + dataNode.resourceId).find('.layui-colla-content').addClass('layui-show');
                                     var svcFuncDfs = dataNode.svcFuncDfs;
                                     if (svcFuncDfs != null && svcFuncDfs != undefined) {
                                         $("#" + dataNode.resourceId).find("#jksSelect option[value='" + dataNode.jenServer + "']").prop("selected", true);
                                         $("#" + dataNode.resourceId).find("#agentSelect option[value='" + svcFuncDfs[0].exeMachine + "']").prop("selected", true);
                                         $("#" + dataNode.resourceId).find('.structName').val(dataNode.jobName);
                                     }
                                 }

                                 //获取参数
                                 $.ajax({
                                     type: "post",
                                     url: '/cd/workPlatform/tool/parame/version.afca',
                                     dataType: "json",
                                     async: false,
                                     data: {
                                         toolId: dataNode.funcId
                                     },
                                     success: function (response) {
                                         $('#' + dataNode.resourceId).find('.params  option').remove();
                                         $('#' + dataNode.resourceId).find('.params dl dd').remove();
                                         if (response.data != '' && response.data != null && response.data != undefined) {
                                             response.data.forEach(function (n, i) {
                                                 if (n.paraVesionName != null) {
                                                     if (n.paraVesionName == dataNode.paraValue) {
                                                         $('#' + dataNode.resourceId).find('.params').append("<option value= '" + n.paraVesionName + "||" + n.exceNum + "' selected>" + n.paraVesionName + "</option>");
                                                     } else {
                                                         $('#' + dataNode.resourceId).find('.params').append("<option value= '" + n.paraVesionName + "||" + n.exceNum + "'>" + n.paraVesionName + "</option>");
                                                     }
                                                 }
                                             })
                                         }
                                         form.render('select');
                                     },
                                     error: function () {
                                     }
                                 })

                                 // “编排”
                             } else if (dataNode.stencilId == "CallActivity") {
                                 var content = $('.content').html();
                                 $('.layui-timeline-item').css('display', 'block');
                                 content = "<div id='" + dataNode.resourceId + "' class='elementClass'  draggable='true'>" + content + "</div>";
                                 $('#layui-timeline').append(content);
                                 var lists = $('.elementClass');
                                 for (var j = 0; j < lists.length; j++) {
                                     var list = lists.eq(j).prevAll().length;
                                     $('.elementClass').eq(j).find('span:eq(0)').text(list + 1);
                                 }
                                 layui.element.render('collapse');
                                 $('#' + dataNode.resourceId).find('.flowId').val(dataNode.callactivitycalledelement);//隐藏域
                                 $('#' + dataNode.resourceId).find('.operateSelect').val(dataNode.callactivitycalledelement);
                                 $('#' + dataNode.resourceId).find('.operateSelect').text(dataNode.name);
                                 $('#' + dataNode.resourceId).find('.taskname').val(dataNode.name);
                             }
                         }
                     }
                 } else {
                     layer.msg(response.msg);
                 }
             },
             'error': function () {
                 layer.msg("系统错误！");
             }
         });
     }