些读取xml文件
思路方法
特别是在进行
处理情况下要根据ErrId来获取Error内容网上这方面东西比较零散今天花了点时间整理了下写了个小例子拿来和大家分享下
首先建立
个共同类代码如下: view plaincopy to clipboardpr
? using
; using
.Collections.Generic; using
.Linq; using
.Text; using
.Xml; using
.IO; 
XmlRead {
public
Common {
public
bool GetMessageByKey(
xmlPath, AppKey, out AppValue) {
bool isSuccess = true;
AppValue = "";
(!IsXmlFlieExist(xmlPath)) {
false; }
try
{
XmlDocument xDoc =
XmlDocument
; xDoc.Load(xmlPath);
XmlNode xNode;
XmlElement xElem1;
xNode = xDoc.SelectSingleNode("//appSettings");
xElem1 = (XmlElement)xNode.SelectSingleNode("//add[@key='" + AppKey + "']");
(xElem1 != null) {
AppValue = xElem1.GetAttribute("value");
}
{
}
}
catch (Exception ex)
{
ex.
; isSuccess = false;
}
isSuccess; }
public
bool IsXmlFlieExist( xmlPath) {
try
{
(File.Exists(xmlPath)) {
true; }
{
false; }
}
catch
{
false; }
}
}
}
using
; using
.Collections.Generic; using
.Linq; using
.Text; using
.Xml; using
.IO; XmlRead {
public
Common {
public
bool GetMessageByKey( xmlPath, AppKey, out AppValue) {
bool isSuccess = true;
AppValue = "";
(!IsXmlFlieExist(xmlPath)) {
false; }
try
{
XmlDocument xDoc =
XmlDocument; xDoc.Load(xmlPath);
XmlNode xNode;
XmlElement xElem1;
xNode = xDoc.SelectSingleNode("//appSettings");
xElem1 = (XmlElement)xNode.SelectSingleNode("//add[@key='" + AppKey + "']");
(xElem1 != null) {
AppValue = xElem1.GetAttribute("value");
}
{
}
}
catch (Exception ex)
{
ex.
; isSuccess = false;
}
isSuccess; }
public
bool IsXmlFlieExist( xmlPath) {
try
{
(File.Exists(xmlPath)) {
true; }
{
false; }
}
catch
{
false; }
}
}
}
主
是下面这样比较简单: view plaincopy to clipboardpr
? using
; using
.Collections.Generic; using
.Linq; using
.Text; using
.Xml; XmlRead {
Program {
void Main(
args) {
msg; const
xmlPath = "D:\\VS-workspace\\XmlRead\\XmlRead\\MyConfig.xml"; Common .GetMessageByKey(xmlPath, "Errer001", out msg);
Console.WriteLine(msg);
Console.ReadKey
; }
}
}
using
; using
.Collections.Generic; using
.Linq; using
.Text; using
.Xml; XmlRead {
Program {
void Main( args) {
msg; const
xmlPath = "D:\\VS-workspace\\XmlRead\\XmlRead\\MyConfig.xml"; Common .GetMessageByKey(xmlPath, "Errer001", out msg);
Console.WriteLine(msg);
Console.ReadKey
; }
}
}
参考
xml文件如下: view plaincopy to clipboardpr
? <?xml version="1.0" encoding="utf-8"?>
<
.Config> <appSettings>
<add key="ConnectString" value="D085D536F765EEB74123E527CEC0F564" />
<add key="Message2" value="D085D536F765EEB74123E527CEC0F564" />
<add key="Message3" value="D085D536F765EEB74123E527CEC0F564" />
<add key="Errer001" value="Host is already using!" />
<add key="Errer002" value="Please input halfsize number!" />
</appSettings>
</
.Config> <?xml version="1.0" encoding="utf-8"?>
<
.Config> <appSettings>
<add key="ConnectString" value="D085D536F765EEB74123E527CEC0F564" />
<add key="Message2" value="D085D536F765EEB74123E527CEC0F564" />
<add key="Message3" value="D085D536F765EEB74123E527CEC0F564" />
<add key="Errer001" value="Host is already using!" />
<add key="Errer002" value="Please input halfsize number!" />
</appSettings>
</
.Config> 执行结果:
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