## 工作流服务插件-输出审批人、审批意见到单据上
1. 以下示例插件，举例说明在用户审批的时候，如何获取一级审批节点的审批人、审批意见信息，并输出到单据上，示例未经测试仅供参考思路。首先到K/3 Cloud安装目录的WebSite\Bin子目录，引用如下基本组件（其他组件按需引用）：
Kingdee.BOS.dll
Kingdee.BOS.Contracts.dll
Kingdee.BOS.Core.dll
Kingdee.BOS.DataEntity.dll
Kingdee.BOS.ServiceHelper.dll
```
using Kingdee.BOS.Contracts;
using Kingdee.BOS.Core.Const;
using Kingdee.BOS.Core.DynamicForm.PlugIn;
using Kingdee.BOS.Core.Metadata;
using Kingdee.BOS.Orm.DataEntity;
using Kingdee.BOS.Workflow.Interface;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Demo.Workflow.ServicePlugIn
{
/// <summary>
/// 输出审批人、审批意见到单据上
/// </summary>
[Description("服务插件，输出审批人、审批意见到单据上")]
public class ApprovalInfoServicePlugIn : AbstractOperationServicePlugIn
{
private const string KEY_User1 = "FUserId1_Id";
private const string KEY_Opinion1 = "FRemarks1";
private const string KEY_TaskTitle1 = "FTaskTitle1";
private const int KEY_FirstNodeId = 5;
public override void EndOperationTransaction(Kingdee.BOS.Core.DynamicForm.PlugIn.Args.EndOperationTransactionArgs e)
{
base.EndOperationTransaction(e);
// 获取流程任务信息
var activityCollection = this.Option.GetVariableValue<ObjectActivityInstanceCollection>(BOSConst.CST_KEY_WfActivityInstance, null);
if (activityCollection != null)
{
IMetaDataService metaService = ServiceFactory.GetMetaDataService(this.Context);
IViewService viewService = ServiceFactory.GetViewService(this.Context);
List<DynamicObject> rowList = new List<DynamicObject>();
// 每个任务传入一个ObjectActivityInstance对象，批量审批任务时会传入多个对象
foreach (ObjectActivityInstance actRow in activityCollection)
{
// 本例演示获取当前处理人的信息（每个任务可能有多个处理人，所有处理人存储在ReceiverList属性中）
IActivityInstance actInstance = actRow.ActivityInstance;
var currentReceiver =actInstance.CurrentReceiver;
// 加载单据数据
FormMetadata rowMeta = metaService.Load(this.Context, actRow.ObjectFormId, true) as FormMetadata;
var rowData = viewService.LoadSingle(this.Context, actRow.ObjectKeyValue,rowMeta.BusinessInfo.GetDynamicObjectType());
// 根据节点ID把审批人等信息输出到相应字段上，比如一级审核节点（如何查询节点ID参见下文）的审批人输出到FUserId1字段上
if (actInstance.ActivityDefineId ==KEY_FirstNodeId && currentRe
