C#.NET Xml操作
using
System ;
using
System.Data ;
using
System.Xml ;
using
System.IO;
namespace
Pub.Class
{
///
<summary>
///
Xmls操作类
///
</summary>
public
class
Xml2
{
#region
私有成员
private
string
strXmlFile;
private
XmlDocument objXmlDoc
=
new
XmlDocument();
private
int
_State
=
0
;
#endregion
#region
属性
///
<summary>
///
返回操作状态
///
</summary>
public
int
State {
get
{
return
_State; } }
#endregion
#region
构造器
///
<summary>
///
构造器
///
</summary>
///
<param name="XmlFile"></param>
public
Xml2(
string
XmlFile){
strXmlFile
=
XmlFile;
try
{ objXmlDoc.Load(XmlFile);}
catch
{ _State
=
1
; }
//
无法加载XML文件
}
#endregion
#region
GetData
///
<summary>
///
返回XML文件所有数据
///
</summary>
///
<returns>
DataSet
</returns>
public
DataSet GetData()
{
DataSet ds
=
new
DataSet();
ds.ReadXml(@strXmlFile);
return
ds;
}
///
<summary>
///
返回指定结点的所有数据
///
</summary>
///
<param name="Node">
结点
</param>
///
<returns>
DataSet
</returns>
public
DataSet GetData(
string
Node)
{
string
mainNode
=
Node.TrimEnd(
'
/
'
);
DataSet ds
=
new
DataSet();
StringReader read
=
new
StringReader(objXmlDoc.SelectSingleNode(mainNode).OuterXml);
ds.ReadXml(read);
return
ds;
}
#endregion
#region
Node/DelNode/GetNodeText/SetNodeText/AddNode
///
<summary>
///
取结点的内容
///
</summary>
///
<param name="Node">
结点
</param>
///
<returns>
内容
</returns>
public
string
GetNodeText(
string
Node) {
string
mainNode
=
Node.TrimEnd(
'
/
'
),_value
=
""
;
XmlNode objNode
=
objXmlDoc.SelectSingleNode(mainNode);
_value
=
objNode.InnerText;
return
_value;
}
///
<summary>
///
重新设置结点的内容
///
</summary>
///
<param name="Node">
结点
</param>
///
<param name="Content">
内容
</param>
public
void
SetNodeText(
string
Node,
string
Content)
{
string
mainNode
=
Node.TrimEnd(
'
/
'
);
XmlNode objNode
=
objXmlDoc.SelectSingleNode(mainNode);
objNode.InnerText
=
Content;
}
///
<summary>
///
添加有内容的结点。属性名，属性值支持用“|”分开的字符串
///
</summary>
///
<param name="MainNode">
当前结点
</param>
///
<param name="Node">
新结点名
</param>
///
<param name="attributeName">
属性名
</param>
///
<param name="attributeValue">
属性值
</param>
///
<param name="Content">
内容
</param>
public
void
AddNode(
string
MainNode,
string
Node,
string
attributeName,
string
attributeValue,
string
Content)
{
string
_mainNode
=
MainNode.TrimEnd(
'
/
'
);
string
[] attributeNameArr
=
attributeName.Split(
'
|
'
), attributeValueArr
=
attributeValue.Split(
'
|
'
);
if
(attributeValueArr.Length
!=
attributeNameArr.Length) { _State
=
3
;
return
; }
//
参数不正确
XmlNode objNode
=
objXmlDoc.SelectSingleNode(_mainNode);
XmlElement objElement
=
objXmlDoc.CreateElement(Node);
if
(attributeName.Trim()
!=
""
) {
for
(
int
i
=
0
; i
<=
attributeNameArr.Length
-
1
; i
++
) {
if
(objNode.Attributes[attributeNameArr[i]]
==
null
) {
objElement.SetAttribute(attributeNameArr[i], attributeValueArr[i]);
}
}
}
objElement.InnerText
=
Content;
objNode.AppendChild(objElement);
}
///
<summary>
///
添加无内容的结点。属性名，属性值支持用“|”分开的字符串
///
</summary>
///
<param name="MainNode">
当前结点
</param>
///
<param name="Node">
新结点名
</param>
///
<param name="attributeName">
属性名
</param>
///
<param name="attributeValue">
属性值
</param>
public
void
AddNode(
string
MainNode,
string
Node,
string
attributeName,
string
attributeValue)
{
string
_mainNode
=
MainNode.TrimEnd(
'
/
'
);
string
[] attributeNameArr
=
attributeName.Split(
'
|
'
), attributeValueArr
=
attributeValue.Split(
'
|
'
);
if
(attributeValueArr.Length
!=
attributeNameArr.Length) { _State
=
3
;
return
; }
//
参数不正确
XmlNode objNode
=
objXmlDoc.SelectSingleNode(_mainNode);
XmlElement objElement
=
objXmlDoc.CreateElement(Node);
if
(attributeName.Trim()
!=
""
) {
for
(
int
i
=
0
; i
<=
attributeNameArr.Length
-
1
; i
++
) {
if
(objNode.Attributes[attributeNameArr[i]]
==
null
) {
objElement.SetAttribute(attributeNameArr[i], attributeValueArr[i]);
}
}
}
objNode.AppendChild(objElement);
}
///
<summary>
///
删除结点
///
</summary>
///
<param name="MainNode"></param>
public
void
DelNode(
string
MainNode)
{
string
_mainNode
=
MainNode.TrimEnd(
'
/
'
);
XmlNode objNode
=
objXmlDoc.SelectSingleNode(_mainNode);
if
(objNode
!=
null
) objNode.ParentNode.RemoveChild(objNode);
}
#endregion
#region
Attr
///
<summary>
///
取指定结点的属性值，属性名支持用“|”分开的字符串
///
</summary>
///
<param name="Node">
结点
</param>
///
<param name="attributeName">
属性名
</param>
///
<returns></returns>
public
string
GetAttr(
string
Node,
string
attributeName) {
string
mainNode
=
Node.TrimEnd(
'
/
'
),_value
=
""
;
string
[] attributeNameArr
=
attributeName.Split(
'
|
'
);
XmlNode objNode
=
objXmlDoc.SelectSingleNode(mainNode);
for
(
int
i
=
0
; i
<=
attributeNameArr.Length
-
1
; i
++
) {
try
{
_value
+=
objNode.Attributes[attributeNameArr[i]].Value.ToString()
+
"
|
"
;
}
catch
{ _value
+=
"
|
"
; }
}
return
_value.Substring(
0
,_value.Length
-
1
);
}
///
<summary>
///
为指定结点添加新的属性值，如果存在则不添加。属性名，属性值支持用“|”分开的字符串
///
</summary>
///
<param name="Node">
结点
</param>
///
<param name="attributeName">
属性名
</param>
///
<param name="attributeValue">
属性值
</param>
public
void
AddAttr(
string
Node,
string
attributeName,
string
attributeValue)
{
string
_mainNode
=
Node.TrimEnd(
'
/
'
);
string
[] attributeNameArr
=
attributeName.Split(
'
|
'
), attributeValueArr
=
attributeValue.Split(
'
|
'
);
if
(attributeValueArr.Length
!=
attributeNameArr.Length) { _State
=
3
;
return
; }
//
参数不正确
XmlElement objElement
=
(XmlElement)objXmlDoc.SelectSingleNode(_mainNode);
try
{
for
(
int
i
=
0
; i
<=
attributeNameArr.Length
-
1
; i
++
) {
if
(objElement.Attributes[attributeNameArr[i]]
==
null
){
objElement.SetAttribute(attributeNameArr[i], attributeValueArr[i]);
}
}
}
catch
{ _State
=
4
; }
//
操作错误
}
///
<summary>
///
设置指定的属性值,此属性必需存在。属性名，属性值支持用“|”分开的字符串
///
</summary>
///
<param name="Node">
结点
</param>
///
<param name="attributeName">
属性名
</param>
///
<param name="attributeValue">
属性值
</param>
public
void
SetAttr(
string
Node,
string
attributeName,
string
attributeValue)
{
string
mainNode
=
Node.TrimEnd(
'
/
'
);
string
[] attributeNameArr
=
attributeName.Split(
'
|
'
), attributeValueArr
=
attributeValue.Split(
'
|
'
);
if
(attributeValueArr.Length
!=
attributeNameArr.Length) { _State
=
3
;
return
; }
//
参数不正确
XmlNode objNode
=
objXmlDoc.SelectSingleNode(mainNode);
for
(
int
i
=
0
; i
<=
attributeNameArr.Length
-
1
; i
++
) {
try
{
objNode.Attributes[attributeNameArr[i]].Value
=
attributeValueArr[i];
}
catch
{ }
}
}
#endregion
#region
保存XML文件
///
<summary>
///
保存XML文件
///
</summary>
///
<example>
///
<code>
///
string strXmlFile = Server.MapPath("~/web.config");
///
Xml _xml = new Xmls(strXmlFile);
///
_xml.AddNode("configuration//appSettings","add", "key|value", "12|1111111");
///
_xml.AddNode("configuration//appSettings", "add", "key|value", "12|1111111", "cexo255");
///
Response.Write(_xml.getNodeText("configuration//appSettings//add[@key='12']"));
///
_xml.SetAttr("configuration//appSettings//add[@key='']", "value|providerName", "aaaaaaaaaaaa3|System.Data.SqlClient3");
///
_xml.AddAttr("configuration//appSettings//add[@key='']", "value|providerName","aaaaaaaaaaaa|System.Data.SqlClient");
///
Response.Write(_xml.getAttr("configuration//appSettings//add[@key='']", "value|providerName"));
///
_xml.Save();
///
switch (_xml.State) {
///
case 0:
///
Js.Alert(this, "操作成功！");
///
break;
///
case 1:
///
Js.Alert(this, "无法加载XML文件");
///
break;
///
case 2:
///
Js.Alert(this, "保存失败");
///
break;
///
case 3:
///
Js.Alert(this, "参数对应不正确");
///
break;
///
case 4:
///
Js.Alert(this, "操作错误");
///
break;
///
}
///
</code>
///
</example>
public
void
Save() {
try
{
if
(_State
==
0
) objXmlDoc.Save(strXmlFile); }
catch
{ _State
=
2
; }
//
保存失败
objXmlDoc
=
null
;
}
///
<summary>
///
关闭XML对像
///
</summary>
public
void
Close() {
if
(
null
!=
objXmlDoc) { objXmlDoc
=
null
;}
}
public
string
ToXmlText(){
return
objXmlDoc.OuterXml;
}
#endregion
#region
全局方法Create
///
<summary>
///
新建一个XML文件
///
</summary>
///
<param name="xmlFile">
XML文件路径
</param>
///
<param name="cssFile">
CSS文件路径
</param>
///
<param name="xlsFile">
XLS文件路径
</param>
///
<param name="encoding">
编码
</param>
///
<param name="node">
根结点
</param>
///
<returns>
是否操作成功
</returns>
public
static
bool
Create(
string
xmlFile,
string
cssFile,
string
xlsFile,
string
encoding,
string
node) {
if
(node.Trim().Equals(
""
))
return
false
;
if
(encoding.Trim().Equals(
""
)) encoding
=
"
utf-8
"
;
string
_str
=
"
<?xml version=\
"
1.0
\
"
encoding=\
""
+ encoding +
"
\
"
?>
"
;
if
(
!
cssFile.Trim().Equals(
""
)) _str
+=
Environment.NewLine
+
"
<?xml-stylesheet type=\
"
text
/
css\
"
href=\
""
+ cssFile +
"
\
"
?>
"
;
if
(
!
xlsFile.Trim().Equals(
""
)) _str
+=
Environment.NewLine
+
"
<?xml-stylesheet type=\
"
text
/
xsl\
"
href=\
""
+ xlsFile +
"
\
"
media=\
"
screen\
"
?>
"
;
_str
+=
Environment.NewLine
+
node;
return
Log.Write(xmlFile, _str, encoding);
}
#endregion
}
}