public List<Material> findMatchMaterials(Material originalMaterial){
		List<Material>  materialsTemp=new ArrayList<Material>();
		for (Material material : materials) {
			if(material.getXunhao().equals(originalMaterial.getXunhao())){
				if(material.getTidaixiangmuzu().equals(originalMaterial.getTidaixiangmuzu())){
					if(material.getYouxianji().equals("2")){
						materialsTemp.add(material);
					}
				}
			}
		}
		return materialsTemp;
	}