asp.net(C#) Xml操作(增删改查)练习
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2022-05-09 08:10:29
web.config配置： 复制代码 代码如下:
web.config配置：
<appsettings>
<add key="xmlfile" value="xml/class.xml"/>
</appsettings>
<appsettings>
<add key="xmlfile" value="xml/class.xml"/>
</appsettings>
前台:
<%@ page language="c#" autoeventwireup="true" codefile="default.aspx.cs" inherits="test_default" %>
<!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "http://www.w3.org/tr/xhtml1/dtd/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>c#操作xml(增删改查)练习</title>
</head>
<body>
<form id="form1" runat="server">
<div id="showxml" runat="server">
显示xml文档
</div>
<div style="background-color:green;color:yellow;" style="background-color:green;color:yellow;">为html控件绑定服务器控件的两个要点:<br />
1.onserverclick="servermethod"这里只写方法名.<br />
2.后台代码,必须是<br />
protected void xmladd(object sender, eventargs e){}<br />
注意两个参数及保护级.
</div>
<input id="btnadd" type="button" value="add" runat="server" onserverclick="xmladd" />
<input id="btndelete" type="button" value="delete" runat="server" onserverclick="xmldelete" />
<input id="btnupdate" type="button" value="update" runat="server" onserverclick="xmlupdate" />
<input id="btnquery" type="button" value="query" runat="server" onserverclick="xmlquery" />
</form>
</body>
</html>
<%@ page language="c#" autoeventwireup="true" codefile="default.aspx.cs" inherits="test_default" %>
<!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "http://www.w3.org/tr/xhtml1/dtd/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>c#操作xml(增删改查)练习</title>
</head>
<body>
<form id="form1" runat="server">
<div id="showxml" runat="server">
显示xml文档
</div>
<div style="background-color:green;color:yellow;" style="background-color:green;color:yellow;">为html控件绑定服务器控件的两个要点:<br />
1.onserverclick="servermethod"这里只写方法名.<br />
2.后台代码,必须是<br />
protected void xmladd(object sender, eventargs e){}<br />
注意两个参数及保护级.
</div>
<input id="btnadd" type="button" value="add" runat="server" onserverclick="xmladd" />
<input id="btndelete" type="button" value="delete" runat="server" onserverclick="xmldelete" />
<input id="btnupdate" type="button" value="update" runat="server" onserverclick="xmlupdate" />
<input id="btnquery" type="button" value="query" runat="server" onserverclick="xmlquery" />
</form>
</body>
</html>
后台:
using system;
using system.data;
using system.configuration;
using system.collections;
using system.web;
using system.web.security;
using system.web.ui;
using system.web.ui.webcontrols;
using system.web.ui.webcontrols.webparts;
using system.web.ui.htmlcontrols;
using system.xml;
public partial class test_default : system.web.ui.page
{
string xmlfile = system.configuration.configurationmanager.appsettings["xmlfile"];
xmldocument xmldoc = new xmldocument();
protected void page_load(object sender, eventargs e)
{
bind();
}
private void bind()
{
xmldoc.load(server.mappath("../" + xmlfile));//向上一级
this.showxml.innerhtml = system.web.httputility.htmlencode(xmldoc.innerxml);
}
protected void xmladd(object sender, eventargs e)
{
xmlnode objrootnode = xmldoc.selectsinglenode("//root"); //声明xmlnode对象
xmlelement objchildnode = xmldoc.createelement("student"); //创建xmlelement对象
objchildnode.setattribute("id", "1");
objrootnode.appendchild(objchildnode);
//
xmlelement objelement = xmldoc.createelement("name");//???结点和元素的区别?方法都一样.
objelement.innertext = "tree1";
objchildnode.appendchild(objelement);
//保存
xmldoc.save(server.mappath("../" + xmlfile));
}
protected void xmldelete(object sender, eventargs e)
{
string node = "//root/student[name='tree1']";//xml是严格区分大小写的.
xmldoc.selectsinglenode(node).parentnode.removechild(xmldoc.selectsinglenode(node));
//保存
xmldoc.save(server.mappath("../" + xmlfile));
}
protected void xmlupdate(object sender, eventargs e)
{
//xmldoc.selectsinglenode("//root/student[name='tree1']/name").innertext = "tree2";
xmldoc.selectsinglenode("//root/student[name='tree1']").attributes["id"].value = "001";
//保存
xmldoc.save(server.mappath("../" + xmlfile));
}
protected void xmlquery(object sender, eventargs e)
{
xmlnodelist nodelist = xmldoc.selectnodes("//root/student");//查询全部的student节点
//循环遍历节点，查询是否存在该节点
for (int i = 0; i < nodelist.count; i++)
{
response.write(nodelist[i].childnodes[0].innertext);
}
//查询单个节点,//表示全部匹配的元素./表示以此为根的子元素.javascript下的查询也是一样.
string xmlpathnode = "//root/student[name='rock']/photo";
response.write(xmldoc.selectsinglenode(xmlpathnode).innertext);
}
}
using system;
using system.data;
using system.configuration;
using system.collections;
using system.web;
using system.web.security;
using system.web.ui;
using system.web.ui.webcontrols;
using system.web.ui.webcontrols.webparts;
using system.web.ui.htmlcontrols;
using system.xml;
public partial class test_default : system.web.ui.page
{
string xmlfile = system.configuration.configurationmanager.appsettings["xmlfile"];
xmldocument xmldoc = new xmldocument();
protected void page_load(object sender, eventargs e)
{
bind();
}
private void bind()
{
xmldoc.load(server.mappath("../" + xmlfile));//向上一级
this.showxml.innerhtml = system.web.httputility.htmlencode(xmldoc.innerxml);
}
protected void xmladd(object sender, eventargs e)
{
xmlnode objrootnode = xmldoc.selectsinglenode("//root"); //声明xmlnode对象
xmlelement objchildnode = xmldoc.createelement("student"); //创建xmlelement对象
objchildnode.setattribute("id", "1");
objrootnode.appendchild(objchildnode);
//
xmlelement objelement = xmldoc.createelement("name");//???结点和元素的区别?方法都一样.
objelement.innertext = "tree1";
objchildnode.appendchild(objelement);
//保存
xmldoc.save(server.mappath("../" + xmlfile));
}
protected void xmldelete(object sender, eventargs e)
{
string node = "//root/student[name='tree1']";//xml是严格区分大小写的.
xmldoc.selectsinglenode(node).parentnode.removechild(xmldoc.selectsinglenode(node));
//保存
xmldoc.save(server.mappath("../" + xmlfile));
}
protected void xmlupdate(object sender, eventargs e)
{
//xmldoc.selectsinglenode("//root/student[name='tree1']/name").innertext = "tree2";
xmldoc.selectsinglenode("//root/student[name='tree1']").attributes["id"].value = "001";
//保存
xmldoc.save(server.mappath("../" + xmlfile));
}
protected void xmlquery(object sender, eventargs e)
{
xmlnodelist nodelist = xmldoc.selectnodes("//root/student");//查询全部的student节点
//循环遍历节点，查询是否存在该节点
for (int i = 0; i < nodelist.count; i++)
{
response.write(nodelist[i].childnodes[0].innertext);
}
//查询单个节点,//表示全部匹配的元素./表示以此为根的子元素.javascript下的查询也是一样.
string xmlpathnode = "//root/student[name='rock']/photo";
response.write(xmldoc.selectsinglenode(xmlpathnode).innertext);
}
}
xml文件
<?xml version="1.0" encoding="gb2312"?>
<root>
<student admin="no">
<name>rock</name>
<nickname>rock1</nickname>
<pwd>123</pwd>
<sex>男生</sex>
<birthday>1986-1-1</birthday>
<email>xymac@163.com</email>
<qq>123374355</qq>
<msn>loveplc@live.cn</msn>
<tel>13005129336</tel>
<homepage>//www.jb51.net</homepage>
<address>广州</address>
<work>asp.net菜鸟</work>
<photo>images/rock.gif</photo>
<time>2008-3-18 10:15:29</time>
</student>
<student admin="yes">
<name>tree</name>
<nickname>宿舍老大</nickname>
<pwd>51aspx</pwd>
<sex>男生</sex>
<birthday>
</birthday>
<email>support@tree.com</email>
<qq>
</qq>
<msn>
</msn>
<tel>
</tel>
<homepage>
</homepage>
<address>
</address>
<work>
</work>
<photo>
</photo>
<time>2008-3-26 11:39:57</time>
</student>
<student>
<name>tree2</name>
</student>
<student id="001">
<name>tree1</name>
</student>
</root>
复制代码 代码如下:
<appsettings>
<add key="xmlfile" value="xml/class.xml"/>
</appsettings>
<appsettings>
<add key="xmlfile" value="xml/class.xml"/>
</appsettings>
前台:
复制代码 代码如下:
<%@ page language="c#" autoeventwireup="true" codefile="default.aspx.cs" inherits="test_default" %>
<!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "http://www.w3.org/tr/xhtml1/dtd/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>c#操作xml(增删改查)练习</title>
</head>
<body>
<form id="form1" runat="server">
<div id="showxml" runat="server">
显示xml文档
</div>
<div style="background-color:green;color:yellow;" style="background-color:green;color:yellow;">为html控件绑定服务器控件的两个要点:<br />
1.onserverclick="servermethod"这里只写方法名.<br />
2.后台代码,必须是<br />
protected void xmladd(object sender, eventargs e){}<br />
注意两个参数及保护级.
</div>
<input id="btnadd" type="button" value="add" runat="server" onserverclick="xmladd" />
<input id="btndelete" type="button" value="delete" runat="server" onserverclick="xmldelete" />
<input id="btnupdate" type="button" value="update" runat="server" onserverclick="xmlupdate" />
<input id="btnquery" type="button" value="query" runat="server" onserverclick="xmlquery" />
</form>
</body>
</html>
<%@ page language="c#" autoeventwireup="true" codefile="default.aspx.cs" inherits="test_default" %>
<!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "http://www.w3.org/tr/xhtml1/dtd/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>c#操作xml(增删改查)练习</title>
</head>
<body>
<form id="form1" runat="server">
<div id="showxml" runat="server">
显示xml文档
</div>
<div style="background-color:green;color:yellow;" style="background-color:green;color:yellow;">为html控件绑定服务器控件的两个要点:<br />
1.onserverclick="servermethod"这里只写方法名.<br />
2.后台代码,必须是<br />
protected void xmladd(object sender, eventargs e){}<br />
注意两个参数及保护级.
</div>
<input id="btnadd" type="button" value="add" runat="server" onserverclick="xmladd" />
<input id="btndelete" type="button" value="delete" runat="server" onserverclick="xmldelete" />
<input id="btnupdate" type="button" value="update" runat="server" onserverclick="xmlupdate" />
<input id="btnquery" type="button" value="query" runat="server" onserverclick="xmlquery" />
</form>
</body>
</html>
后台:
复制代码 代码如下:
using system;
using system.data;
using system.configuration;
using system.collections;
using system.web;
using system.web.security;
using system.web.ui;
using system.web.ui.webcontrols;
using system.web.ui.webcontrols.webparts;
using system.web.ui.htmlcontrols;
using system.xml;
public partial class test_default : system.web.ui.page
{
string xmlfile = system.configuration.configurationmanager.appsettings["xmlfile"];
xmldocument xmldoc = new xmldocument();
protected void page_load(object sender, eventargs e)
{
bind();
}
private void bind()
{
xmldoc.load(server.mappath("../" + xmlfile));//向上一级
this.showxml.innerhtml = system.web.httputility.htmlencode(xmldoc.innerxml);
}
protected void xmladd(object sender, eventargs e)
{
xmlnode objrootnode = xmldoc.selectsinglenode("//root"); //声明xmlnode对象
xmlelement objchildnode = xmldoc.createelement("student"); //创建xmlelement对象
objchildnode.setattribute("id", "1");
objrootnode.appendchild(objchildnode);
//
xmlelement objelement = xmldoc.createelement("name");//???结点和元素的区别?方法都一样.
objelement.innertext = "tree1";
objchildnode.appendchild(objelement);
//保存
xmldoc.save(server.mappath("../" + xmlfile));
}
protected void xmldelete(object sender, eventargs e)
{
string node = "//root/student[name='tree1']";//xml是严格区分大小写的.
xmldoc.selectsinglenode(node).parentnode.removechild(xmldoc.selectsinglenode(node));
//保存
xmldoc.save(server.mappath("../" + xmlfile));
}
protected void xmlupdate(object sender, eventargs e)
{
//xmldoc.selectsinglenode("//root/student[name='tree1']/name").innertext = "tree2";
xmldoc.selectsinglenode("//root/student[name='tree1']").attributes["id"].value = "001";
//保存
xmldoc.save(server.mappath("../" + xmlfile));
}
protected void xmlquery(object sender, eventargs e)
{
xmlnodelist nodelist = xmldoc.selectnodes("//root/student");//查询全部的student节点
//循环遍历节点，查询是否存在该节点
for (int i = 0; i < nodelist.count; i++)
{
response.write(nodelist[i].childnodes[0].innertext);
}
//查询单个节点,//表示全部匹配的元素./表示以此为根的子元素.javascript下的查询也是一样.
string xmlpathnode = "//root/student[name='rock']/photo";
response.write(xmldoc.selectsinglenode(xmlpathnode).innertext);
}
}
using system;
using system.data;
using system.configuration;
using system.collections;
using system.web;
using system.web.security;
using system.web.ui;
using system.web.ui.webcontrols;
using system.web.ui.webcontrols.webparts;
using system.web.ui.htmlcontrols;
using system.xml;
public partial class test_default : system.web.ui.page
{
string xmlfile = system.configuration.configurationmanager.appsettings["xmlfile"];
xmldocument xmldoc = new xmldocument();
protected void page_load(object sender, eventargs e)
{
bind();
}
private void bind()
{
xmldoc.load(server.mappath("../" + xmlfile));//向上一级
this.showxml.innerhtml = system.web.httputility.htmlencode(xmldoc.innerxml);
}
protected void xmladd(object sender, eventargs e)
{
xmlnode objrootnode = xmldoc.selectsinglenode("//root"); //声明xmlnode对象
xmlelement objchildnode = xmldoc.createelement("student"); //创建xmlelement对象
objchildnode.setattribute("id", "1");
objrootnode.appendchild(objchildnode);
//
xmlelement objelement = xmldoc.createelement("name");//???结点和元素的区别?方法都一样.
objelement.innertext = "tree1";
objchildnode.appendchild(objelement);
//保存
xmldoc.save(server.mappath("../" + xmlfile));
}
protected void xmldelete(object sender, eventargs e)
{
string node = "//root/student[name='tree1']";//xml是严格区分大小写的.
xmldoc.selectsinglenode(node).parentnode.removechild(xmldoc.selectsinglenode(node));
//保存
xmldoc.save(server.mappath("../" + xmlfile));
}
protected void xmlupdate(object sender, eventargs e)
{
//xmldoc.selectsinglenode("//root/student[name='tree1']/name").innertext = "tree2";
xmldoc.selectsinglenode("//root/student[name='tree1']").attributes["id"].value = "001";
//保存
xmldoc.save(server.mappath("../" + xmlfile));
}
protected void xmlquery(object sender, eventargs e)
{
xmlnodelist nodelist = xmldoc.selectnodes("//root/student");//查询全部的student节点
//循环遍历节点，查询是否存在该节点
for (int i = 0; i < nodelist.count; i++)
{
response.write(nodelist[i].childnodes[0].innertext);
}
//查询单个节点,//表示全部匹配的元素./表示以此为根的子元素.javascript下的查询也是一样.
string xmlpathnode = "//root/student[name='rock']/photo";
response.write(xmldoc.selectsinglenode(xmlpathnode).innertext);
}
}
xml文件
复制代码 代码如下:
<?xml version="1.0" encoding="gb2312"?>
<root>
<student admin="no">
<name>rock</name>
<nickname>rock1</nickname>
<pwd>123</pwd>
<sex>男生</sex>
<birthday>1986-1-1</birthday>
<email>xymac@163.com</email>
<qq>123374355</qq>
<msn>loveplc@live.cn</msn>
<tel>13005129336</tel>
<homepage>//www.jb51.net</homepage>
<address>广州</address>
<work>asp.net菜鸟</work>
<photo>images/rock.gif</photo>
<time>2008-3-18 10:15:29</time>
</student>
<student admin="yes">
<name>tree</name>
<nickname>宿舍老大</nickname>
<pwd>51aspx</pwd>
<sex>男生</sex>
<birthday>
</birthday>
<email>support@tree.com</email>
<qq>
</qq>
<msn>
</msn>
<tel>
</tel>
<homepage>
</homepage>
<address>
</address>
<work>
</work>
<photo>
</photo>
<time>2008-3-26 11:39:57</time>
</student>
<student>
<name>tree2</name>
</student>
<student id="001">
<name>tree1</name>
</student>
</root>
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