二开下推

	public Object doCmd(DefaultContext context, ArrayList<Object> paras) throws Throwable {
		String IDs = TypeConvertor.toString(paras.get(0)); // 指定的订单ID，用逗号分割
		Boolean merge = TypeConvertor.toBoolean(paras.get(1)); //是否跨物料合并
		IMetaFactory metaFactory = context.getVE().getMetaFactory();
		MetaDataObject mo = metaFactory.getDataObject("LRP_WMTx");

		// 首先读取出库订单并将单据直接下推
		DefaultContext ncontext = new DefaultContext(context);
		LoadData l = new LoadData("LRP_OutboundNotice", OID);
		Document srcdoc = l.load(ncontext, null);
		MidDataMapUtil Util = new MidDataMapUtil();
		Document tgtDoc = Util.mapWithoutSave(ncontext, "OutboundNotice-Tx201", srcdoc, "");
		DataTable dtHead = tgtDoc.get("LRP_WMTx_H");
		DataTable dtDetail = tgtDoc.get("LRP_WMTx_L");

		// 将生成的单据保存
		ncontext = new DefaultContext(context);
		SaveData save = new SaveData(mo, null, tgtDoc);
		save.save(ncontext);

		return result;
	}

二开下推的解题思路：
根据参数拿出当前环境下的OID
另置环境DefaultContext nctx=new DefaultContext(context);
根据LoadData l=new LoadData("数据对象标识Key"，OID);
获取上游单据数据Document srcdoc=l.load(nctx,null);
获取下推工具类MidDataMapUtil Util=new MidDataMapUtil();
下推操作Document tgtdoc=Util.mapwithoutSave(nctx,'数据映射',srcdoc,'');
保存 MetaDataObject mo=ctx.getVE().getMetaFactory()..getDataObject("LRP_WMTx");
        nctx=new DefaultContext(ctx);
        SaveData save=new SavaData(mo,null,tgtdoc);
        save.save(nctx);