Angular----安置物流项目前端框架经验总结

杨利
2023-12-01

一、架构方面

    (一) Angular框架有service 、controller层:

            在Angular里面,services作为单例对象在需要到的时候被创建,只有在应用生命周期结束的时候(关闭浏览器)才会被清除。而controllers在不需要的时候就会被销毁了(因为service的底层机制是通过闭包实现,如果过分使用会导致内存泄露从而导致性能问题)。

  (二)Angular框架技术方面

       1、angular.ui.grid  数据表的技术

  基本结构的案例代码:

       HTML页面:

//没有分页的情况
    <div ui-grid="financialMainOption" ui-grid-selection ui-grid-pinning ui-grid-resize-columns 
             style="height:399px;" class="grid">
    </div>

//分页的情况
   <div ui-grid="gridOptionsJobCostTemplate" ui-grid-pagination
                ui-grid-selection ui-grid-resize-columns ui-grid-exporter class="grid"
                style="height: 550px;">
</div> /*分页的模块标志*/ ui-grid-pagination

    JS页面:

$scope.rateIncomeOptions = {
            enablePagination : true,// 是否禁用分页
            useExternalPagination : true,// 必须设为true才能赋值totalItems
            enableRowSelection : true,
            enableSelectAll : true,
            enableSorting: true,
            enableCellEditOnFocus:true,//单元格指令
            enableRowSelection:false,
            columnDefs : [
                {name : "rateNme",displayName : '费率名称' ,width : "140",enableCellEdit : false,cellClass:cellRateRow,cellTemplate:'<div class="rateOption_{{row.entity.rateUuid}}">{{row.entity.rateNme}}</div>'},
                {name : "money",displayName : '实际金额' ,width : "80",type:'number',enableCellEdit : true,cellClass: cellClassOrderFun},
                {name : 'unit',displayName : '单位' ,width : "60",type:'number',enableCellEdit : false,cellFilter:"rateUnitFilter"},
                {name : "taxThan",displayName : '纳税比' ,width : "113",type:'number',enableCellEdit : true},
                {name : 'remarks',displayName :'费用备注',width : "350",enableCellEdit : true},
                {name : 'settlementStatus',displayName : '审核状态',width : "90",cellFilter : 'settlementStatus',enableCellEdit : false},
                {name : 'isHaveTicket',displayName :'票',width : "50",enableCellEdit : false,cellFilter:"isOneOrZeroFilter"},
                {name : 'serialNo',displayName :'序号',type:'number',width : "60",enableCellEdit : true ,sort: { direction: uiGridConstants.ASC, priority: 1 } },
                ]};
    // 将grid的API绑定到scope作用域
    $scope.rateIncomeOptions.onRegisterApi = function(gridApi) {
        $scope.rateIncomeGridApi = gridApi;
        //点击行头触发
        gridApi.selection.on.rowSelectionChangedBatch($scope, function (row, event) {/*row选择行头时,event触发该事件的源事件*/
             $scope.selectRateIncomeDatas=gridApi.selection.getSelectedGridRows();//所有选中的行
             $scope.sumInAmount =  $scope.caluSumMoney($scope.selectRateIncomeDatas); //计算选中行的总金额
        });
         //点击行时触发
        gridApi.selection.on.rowSelectionChanged($scope, function (row, event) {/*row选择的行,event触发该事件的源事件*/
             $scope.selectRateIncomeDatas=gridApi.selection.getSelectedGridRows();//所有选中的行
             $scope.sumInAmount =  $scope.caluSumMoney( $scope.selectRateIncomeDatas); //计算选中行的总金额
        });
        //单元格进入事件
        gridApi.edit.on.beginCellEdit($scope,function(row,column){
            $scope.oldValue = row[column.name];
        });
        
        //编辑单元格离开的事件
        gridApi.edit.on.afterCellEdit($scope,function(row,column){
            //当值发生变化时修改
            if($scope.oldValue!=row[column.name]){
                
            }
        });
    };

  注意点:

  (1)Excel导出,中文不乱码的设置,添加属性: 例如:

exporterCsvFilename:"运单报表"+new Date().getTime()+".csv",
      exporterOlderExcelCompatibility:true,   //不使用UTF-8编码

     (2)其中Grid中的列属性columnDefs 可以动态加载,例如:

statisticsReportService.buildWayBillReportColumns().success(
                function(columns) {
                    hideLoading();
                    $scope.wayBillReportGrid.columnDefs = columns;  //动态的赋值给列属性
                    //动态绑定行颜色
                    $.each(columns,function(i,column){
                        column.cellClass = cellClassJobFun;   
                    });
                    $scope.wayBillReportStatistical();
         });

    (3)清除已选中的行,操作方法,如下:

//设置选中的行为0
 $scope.rateIncomeGridApi.selection.clearSelectedRows();

    (4)

  2、angular.ui.tree  树形tree技术

   HTML页面代码:【控制菜单的收缩性】

<div ui-tree="treeOptions" id="tree-root">
      <ol ui-tree-nodes=""  ng-model="subjectTreeList">
            <li ng-repeat="node in subjectTreeList" ui-tree-node  ng-include="'nodes_renderer.html'" ng-show="visible(node)"></li>
      </ol>
</div>

<!--子模板部分-->
<script type="text/ng-template" id="nodes_renderer.html">
  <div ui-tree-handle class="tree-node tree-node-content">
     <a class="btn btn-success btn-xs" ng-if="node.childSubjectSize && node.childSubjectSize > 0" data-nodrag ng-click="toggle(this)">
             <span class="glyphicon"
                   ng-class="{'glyphicon-chevron-right': collapsed, 'glyphicon-chevron-down': !collapsed}">
             </span>
        </a>
    <span ng-if="node.subjectAlias">{{node.subjectCode}} : {{node.subjectAlias}}</span>
    <span ng-if="!node.subjectAlias">{{node.subjectCode}} : {{node.subjectName}}</span>
    <span>
        <a ng-show="node.subjectGrade>-1" class="pull-right btn btn-danger btn-xs" data-nodrag ng-click="removeSubItem(this)"><span
            class="glyphicon glyphicon-remove"></span></a>
        <a class="pull-right btn btn-primary btn-xs" data-nodrag ng-click="newSubItem(this)" style="margin-right: 8px;"><span
             class="glyphicon glyphicon-plus"></span></a>
        <a ng-show="node.subjectGrade>-1"  class="pull-right btn btn-primary btn-xs" data-nodrag ng-click="editSubItem(this)" style="margin-right: 8px;"><span
            class="glyphicon glyphicon-edit"></span></a>
    </span>
  </div>
   <ol  ui-tree-nodes="" ng-model="node.childFinanceSubjects" ng-class="{hidden: collapsed}" style="padding-left:29px;">
    <li ng-show="node.collapsed" ng-repeat="node in node.childFinanceSubjects" ui-tree-node  ng-include="'nodes_renderer.html'" ng-show="visible(node)">
    </li>
    
    <li ng-show="!node.collapsed" ng-repeat="node in node.childFinanceSubjects" ui-tree-node data-collapsed="true" data-expand-on-hover="true" ng-include="'nodes_renderer.html'" ng-show="visible(node)">
    </li>
  </ol>
</script>

JS代码部分:

  数据源:

$scope.getTreeList=function(){ 
        loadingPage();
        financeSubjectService.findAllFinanSubject2($scope.form).success(function(data){
            $scope.allData=data.result;
            //查询树  
            $scope.subjectTreeList=[]; 
            var subjectList=[];
            if(data.result["-1"] && data.result["-1"].length>0){
                $.each(data.result["-1"],function(j,obj){
                    //$scope.initSortNode(obj);
                    subjectList.push(obj);
                });
            }
            var nodeList=$scope.sortNode(subjectList);
            //创建根节点  
            var root={};  
            root.subjectName="财务科目";  
            root.subjectGrade=-1;  
            root.subjectCode='000'; 
            root.subjectType='PAYINCOME';
            root.childSubjectSize=nodeList.length;
            root.childFinanceSubjects=nodeList;  
            
            $scope.subjectTreeList.push(root); 
            $scope.treeOptions.data=$scope.subjectTreeList; 
            hideLoading();
        });
    };

    tree结构的控制:

$scope.treeOptions = { 
   //回调函数
   beforeDrop : function (e) {//拖曳节点下降时候调用的函数
       
   },
   accept: function(sourceNodeScope, destNodesScope, destIndex) {
       return true;
   },
   removed:function(node){
       
   },
   dropped:function(event){
       
   },
   dragStart:function(event){
       
   },
   dragMove:function(event){
       
   },
   dragStop:function(event){
       
   },
   beforeDrag:function(sourceNodeScope){ //拖曳之前检查节点
       
   },
   toggle:function(collapsed, sourceNodeScope){
       if(!collapsed && sourceNodeScope.$modelValue.financeSubjectUuid){
           loadingPage();
           if($scope.allData){
               sourceNodeScope.$modelValue.childFinanceSubjects=$scope.sortNode($scope.allData[sourceNodeScope.$modelValue.financeSubjectUuid]);
               hideLoading();
           }
       }
   }
 };
 

  注意点:  可以在toggle中控制节点的延迟加载。

 

转载于:https://www.cnblogs.com/renxiaoren/p/8966556.html

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