HL7 2.6 解析（XML）

最新推荐文章于 2025-07-07 14:20:52 发布

转载最新推荐文章于 2025-07-07 14:20:52 发布 · 253 阅读

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原文链接：http://www.cnblogs.com/MuNet/p/8444313.html

文章标签：

#c#

本文介绍了一个用于将HL7消息格式转换为XML格式的C#实现方法。该转换器支持多种分隔符，包括|、^、~和&，并提供了用于解析和检索XML数据的方法。

用途：检验化验（LIS）实验室设备数据交换解析。

using System;
using System.Collections.Generic;
using System.Text;
using System.Xml;
using System.Text.RegularExpressions;

namespace PT.Common
{
    /// <summary>
    /// HL7解析器
    /// </summary>
    public static class HL7ToXmlConverter
    {
        private static XmlDocument _xmlDoc;

        /// <summary>
        /// 把HL7信息转成XML形式
        /// 分隔顺序 \n,|,~,^,&
        /// </summary>
        /// <param name="sHL7">HL7字符串</param>
        /// <returns></returns>
        public static string ConvertToXml(string sHL7)
        {
            _xmlDoc = ConvertToXmlObject(sHL7);
            return _xmlDoc.OuterXml;
        }

        /// <summary>
        /// 通过|分隔
        /// </summary>
        /// <param name="s"></param>
        /// <returns></returns>
        private static string[] GetMessgeFields(string s)
        {
            return s.Split('|');
        }

        /// <summary>
        /// 通过^分隔
        /// </summary>
        /// <param name="s"></param>
        /// <returns></returns>
        private static string[] GetComponents(string s)
        {
            return s.Split('^');
        }

        /// <summary>
        /// 通过某连接符分隔
        /// </summary>
        /// <param name="s"></param>
        /// <returns></returns>
        private static string[] GetSubComponents(string s)
        {
            return s.Split('&');
        }

        /// <summary>
        /// 通过~分隔 重复
        /// </summary>
        /// <param name="s"></param>
        /// <returns></returns>
        private static string[] GetRepetitions(string s)
        {
            return s.Split('~');
        }

        /// <summary>
        /// 创建XML对象
        /// </summary>
        /// <returns></returns>
        private static XmlDocument CreateXmlDoc()
        {
            XmlDocument output = new XmlDocument();
            XmlElement rootNode = output.CreateElement("HL7Message");
            output.AppendChild(rootNode);
            return output;
        }
        
        /// <summary>
        /// 读取XML某节点值
        /// </summary>
        /// <param name="xmlObject"></param>
        /// <param name="path"></param>
        /// <returns></returns>
        public static string GetText(XmlDocument xmlObject, string path)
        {
            XmlNode node = xmlObject.DocumentElement.SelectSingleNode(path);
            if (node != null)
            {
                return node.InnerText;
            }
            else
            {
                return null;
            }
        }

        /// <summary>
        /// 读取XML某节点组的第index项
        /// </summary>
        /// <param name="xmlObject"></param>
        /// <param name="path"></param>
        /// <param name="index"></param>
        /// <returns></returns>
        public static string GetText(XmlDocument xmlObject, string path, int index)
        {
            XmlNodeList nodes = xmlObject.DocumentElement.SelectNodes(path);
            if (index <= nodes.Count)
            {
                return nodes[index].InnerText;
            }
            else
            {
                return null;
            }
        }

        /// <summary>
        /// 读取XML某节点组
        /// </summary>
        /// <param name="xmlObject"></param>
        /// <param name="path"></param>
        /// <returns></returns>
        public static String[] GetTexts(XmlDocument xmlObject, string path)
        {
            XmlNodeList nodes = xmlObject.DocumentElement.SelectNodes(path);
            String[] arr = new String[nodes.Count];
            int index = 0;
            foreach (XmlNode node in nodes)
            {
                arr[index++] = node.InnerText;
            }
            return arr;
        }

        /// <summary>
        /// HL7字符串转XML
        /// </summary>
        /// <param name="sHL7"></param>
        /// <returns></returns>
        public static XmlDocument ConvertToXmlObject(