<dependency>
<groupId>org.openehealth.ipf.boot</groupId>
<artifactId>ipf-hl7v3-spring-boot-starter</artifactId>
<version>3.3.0</version>
</dependency>
HL7 2.6解析转XML(C#版)
项目中需要解析HL7，所以在网上找到解析代码，但错误很多，所以我修改了一下，测试好用。
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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(
string
sHL7)
{
_xmlDoc = CreateXmlDoc();
//把HL7分成段
string
[] sHL7Lines = sHL7.Split(
'\r'
);
//经过测试，TCP方式接收的用\r分隔，webService方式接收的用\n分隔
//过滤一些字符
//for (int i = 0; i < sHL7Lines.Length; i++)
//{
// sHL7Lines[i] = Regex.Replace(sHL7Lines[i], @"[^ -~]", "");
//}
//遍历每一段
for
(
int
i = 0; i < sHL7Lines.Length; i++)
{
// 判断是否空行
if
(sHL7Lines[i] !=
string
.Empty)
{
string
sHL7Line = sHL7Lines[i];
//某一段
//通过“|”分隔
string
[] sFields = HL7ToXmlConverter.GetMessgeFields(sHL7Line);
// 为段（一行）创建第一级节点
XmlElement el = _xmlDoc.CreateElement(sFields[0]);
_xmlDoc.DocumentElement.AppendChild(el);
//遍历每个“|”与“|”间的内容
for
(
int
a = 0; a < sFields.Length; a++)
{
// 为字段创建第二级节点
XmlElement fieldEl = _xmlDoc.CreateElement(sFields[0] +
"."
+ a.ToString());
//是否包括HL7的连接符
if
(sFields[a] !=
@"^~\&"
)
//0:如果这一行有任何分隔符，继续分隔。如果没有任何分隔符，可以直接写节点值。
{
//通过"~"分隔
string
[] sComponents = HL7ToXmlConverter.GetRepetitions(sFields[a]);
if
(1==1)
//1:如果可以用“~”分隔，继续分隔；如果没有“~”符，开始用“~”分隔。不管有没有"~"符，都循环分隔
{
for
(
int
b = 0; b < sComponents.Length; b++)
{
XmlElement componentEl = _xmlDoc.CreateElement(sFields[0] +
"."
+ a.ToString() +
"."
+ b.ToString());
//通过"^"分隔
string
[] subComponents = GetComponents(sComponents[b]);
if
(subComponents.Length > 1)
//2.如果有字组，大部分是没有的
{
for
(
int
c = 0; c < subComponents.Length; c++)
{
//修改了一个错误
string
[] subComponentRepetitions = GetSubComponents(subComponents[c]);
if
(subComponentRepetitions.Length > 1)
{
for
(
int
d = 0; d < subComponentRepetitions.Length; d++)
{
XmlElement subComponentRepEl = _xmlDoc.CreateElement(sFields[0] +
"."
+ a.ToString() +
"."
+ b.ToString() +
"."
+ c.ToString() +
"."
+ d.ToString());
subComponentRepEl.InnerText = subComponentRepetitions[d];
componentEl.AppendChild(subComponentRepEl);
}
}
else
{
XmlElement subComponentEl = _xmlDoc.CreateElement(sFields[0] +
"."
+ a.ToString() +
"."
+ b.ToString() +
"."
+ c.ToString());
subComponentEl.InnerText = subComponents[c];
componentEl.AppendChild(subComponentEl);
}
}
fieldEl.AppendChild(componentEl);
}
else
//2.如果没有字组了，大部分是没有
{
string
[] sRepetitions = HL7ToXmlConverter.GetSubComponents(sComponents[b]);
if
(sRepetitions.Length > 1)
{
XmlElement repetitionEl =
null
;
for
(
int
c = 0; c < sRepetitions.Length; c++)
{
repetitionEl = _xmlDoc.CreateElement(sFields[0] +
"."
+ a.ToString() +
"."
+ b.ToString() +
"."
+ c.ToString());
repetitionEl.InnerText = sRepetitions[c];
componentEl.AppendChild(repetitionEl);
}
fieldEl.AppendChild(componentEl);
el.AppendChild(fieldEl);
}
else
{
componentEl.InnerText = sComponents[b];
fieldEl.AppendChild(componentEl);
el.AppendChild(fieldEl);
}
}
}
el.AppendChild(fieldEl);
}
}
else
{
//0:如果不可以分隔，可以直接写节点值了。
fieldEl.InnerText = sFields[a];
el.AppendChild(fieldEl);
}
}
}
}
return
_xmlDoc;
}
//测试方法转XML
//string sHL7asXml = PT.Common.HL7ToXmlConverter.ConvertToXml(hl7Data);
//ThreadUPtextBoxMsg(textBoxMsgAppendText, "\r\n[解析HL7消息]" + sHL7asXml);
XmlDocument xmlObject = PT.Common.HL7ToXmlConverter.ConvertToXmlObject(hl7Data);
String chuang1 = PT.Common.HL7ToXmlConverter.GetText(xmlObject,
"PV1/PV1.6/PV1.6.0/PV1.6.0.2"
, 0);
String chuang2 = PT.Common.HL7ToXmlConverter.GetText(xmlObject,
"PV1/PV1.3/PV1.3.0/PV1.3.0.2"
, 0);
ThreadUPtextBoxMsg(textBoxMsgAppendText,
"\r\n[解析HL7消息为XML]"
+ name +
"从"
+ chuang1 +
"床换到"
+ chuang2 +
"床"
);
}
}
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解析后的XML，可读性比较差。
C#格式化XML的代码：
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/// <summary>
/// 格式化XML(C#版)
/// </summary>
/// <param name="sUnformattedXml"></param>
/// <returns></returns>
public
static
string
FormatXml(
string
sUnformattedXml)
{
XmlDocument xd =
new
XmlDocument();
xd.LoadXml(sUnformattedXml);
StringBuilder sb =
new
StringBuilder();
StringWriter sw =
new
StringWriter(sb);
XmlTextWriter xtw =
null
;
try
{
xtw =
new
XmlTextWriter(sw);
xtw.Formatting = Formatting.Indented;
xtw.Indentation = 1;
xtw.IndentChar =
'\t'
;
xd.WriteTo(xtw);
}
finally
{
if
(xtw !=
null
)
xtw.Close();
}
return
sb.ToString();
}
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