xml 文件操作

 

'xml添加

 

public sub add(id as string, rfserialnumber as string, mood as integer)

 

 

if reatch（rfserialnumber） = 1 then

return

end if

 

dim xmldoc as new xmldocument()

path = system.io.path.getfullpath("../../mood.xml")

xmldoc.load(path)

dim root as xmlnode = xmldoc.selectsinglenode("recard") '查找<bookstore>

dim xe1 as xmlelement = xmldoc.createelement("rfid") '创建一个<book>节点

xe1.setattribute("type", "ic卡") '设置该节点genre属性

'xe1.setattribute("id", ) '设置该节点isbn属性

dim xesub1 as xmlelement = xmldoc.createelement("id")

xesub1.innertext = id '设置文本节点

xe1.appendchild(xesub1) '添加到<book>节点中

dim xesub2 as xmlelement = xmldoc.createelement("rfserialnumber")

xesub2.innertext = rfserialnumber

xe1.appendchild(xesub2)

dim xesub3 as xmlelement = xmldoc.createelement("mood")

xesub3.innertext = mood

xe1.appendchild(xesub3)

root.appendchild(xe1) '添加到<bookstore>节点中

xmldoc.save(path)

 

end sub

public function read(rfserialnumber as string) as int32

path = system.io.path.getfullpath("../../mood.xml")

dim xmldoc as new xmldocument()

xmldoc.load(path)

dim xn as xmlnode

xn = xmldoc.selectsinglenode("recard")

dim xnl as xmlnodelist

xnl = xn.childnodes

dim xnc as xmlnode

xnc = xn.selectsinglenode("rfid")

dim moodid as integer

moodid = 0

for index = 0 to xnl.count - 1

if xnl(index).item("rfserialnumber").innertext = rfserialnumber then

moodid = convert.toint32(xnl(index).item("mood").innertext)

 

end if

 

next

return moodid

end function

''' <summary>

''' 查询

''' </summary>

''' <param name="rfserialnumber"></param>

''' <returns></returns>

public function reatch(rfserialnumber as string) as int32

 

dim xmldoc as new xmldocument()

path = system.io.path.getfullpath("../../mood.xml")

xmldoc.load(path)

dim xn as xmlnode

xn = xmldoc.selectsinglenode("recard")

dim xnl as xmlnodelist

xnl = xn.childnodes

dim xnc as xmlnode

xnc = xn.selectsinglenode("rfid")

dim num as integer

num = 0

for index = 0 to xnl.count - 1

if xnl(index).item("rfserialnumber").innertext = rfserialnumber then

num = 1

 

end if

 

next

return num

end function

 

 

private sub addpressure_visualizationxml(pressure_visualization as pressure_visualization)

dim path as string

dim xmldoc as new xmldocument()

path = system.io.path.getfullpath("../../../pressure_visualization.xml")

xmldoc.load(path)

dim root as xmlnode = xmldoc.selectsinglenode("pressure_visualizationconfig") '查找<bookstore>

dim xe1 as xmlelement = xmldoc.createelement("pressure_visualization") '创建一个<book>节点

xe1.setattribute("type", "ic卡") '设置该节点genre属性

'xe1.setattribute("id", ) '设置该节点isbn属性

dim xesub1 as xmlelement = xmldoc.createelement("t_device_address")

dim xesub2 as xmlelement = xmldoc.createelement("t_equipment_number")

dim xesub3 as xmlelement = xmldoc.createelement("t_equipment_state")

dim xesub4 as xmlelement = xmldoc.createelement("t_packing_pressure")

dim xesub5 as xmlelement = xmldoc.createelement("t_pressure_holding_time")

dim xesub6 as xmlelement = xmldoc.createelement("t_upper_limit_pressure")

dim xesub7 as xmlelement = xmldoc.createelement("t_lower_limit_pressure")

dim xesub8 as xmlelement = xmldoc.createelement("t_upper_limit_holding_time")

dim xesub9 as xmlelement = xmldoc.createelement("t_holding_time_lower_limit")

 

xesub1.innertext = pressure_visualization.t_device_address

xesub2.innertext = pressure_visualization.t_equipment_number

xesub3.innertext = pressure_visualization.t_equipment_state

xesub4.innertext = pressure_visualization.t_packing_pressure

xesub5.innertext = pressure_visualization.t_pressure_holding_time

xesub6.innertext = pressure_visualization.t_upper_limit_pressure

xesub7.innertext = pressure_visualization.t_lower_limit_pressure

xesub8.innertext = pressure_visualization.t_upper_limit_holding_time

xesub9.innertext = pressure_visualization.t_holding_time_lower_limit

 

xe1.appendchild(xesub1)

xe1.appendchild(xesub2)

xe1.appendchild(xesub3)

xe1.appendchild(xesub4)

xe1.appendchild(xesub5)

xe1.appendchild(xesub6)

xe1.appendchild(xesub7)

xe1.appendchild(xesub8)

xe1.appendchild(xesub9)

root.appendchild(xe1) '添加到<bookstore>节点中

xmldoc.save(path)

 

 

end sub

''更新更新

private sub pressure_visualizationupdata(pressure_visualization as pressure_visualization)

 

dim path as string

dim xmldoc as new xmldocument()

path = system.io.path.getfullpath("../../../pressure_visualization.xml")

xmldoc.load(path)

dim root as xmlnode = xmldoc.selectsinglenode("pressure_visualizationconfig") '查找<bookstore>

 

dim t_device_address as xmlnode = root.childnodes(0).selectsinglenode("t_device_address") '查找t_device_address

dim t_equipment_number as xmlnode = root.childnodes(0).selectsinglenode("t_equipment_number") '查找t_equipment_number

dim t_equipment_state as xmlnode = root.childnodes(0).selectsinglenode("t_equipment_state") '查找t_equipment_state

dim t_packing_pressure as xmlnode = root.childnodes(0).selectsinglenode("t_packing_pressure") '查找t_packing_pressure

dim t_pressure_holding_time as xmlnode = root.childnodes(0).selectsinglenode("t_pressure_holding_time") '查找t_pressure_holding_time

dim t_upper_limit_pressure as xmlnode = root.childnodes(0).selectsinglenode("t_upper_limit_pressure") '查找t_upper_limit_pressure

dim t_lower_limit_pressure as xmlnode = root.childnodes(0).selectsinglenode("t_lower_limit_pressure") '查找t_lower_limit_pressure

dim t_upper_limit_holding_time as xmlnode = root.childnodes(0).selectsinglenode("t_upper_limit_holding_time") '查找t_upper_limit_holding_time

dim t_holding_time_lower_limit as xmlnode = root.childnodes(0).selectsinglenode("t_holding_time_lower_limit") '查找t_holding_time_lower_limit

t_device_address.innertext = pressure_visualization.t_device_address

t_equipment_number.innertext = pressure_visualization.t_equipment_number

t_equipment_state.innertext = pressure_visualization.t_equipment_state

t_packing_pressure.innertext = pressure_visualization.t_packing_pressure

t_pressure_holding_time.innertext = pressure_visualization.t_pressure_holding_time

t_upper_limit_pressure.innertext = pressure_visualization.t_upper_limit_pressure

t_lower_limit_pressure.innertext = pressure_visualization.t_lower_limit_pressure

t_upper_limit_holding_time.innertext = pressure_visualization.t_upper_limit_holding_time

t_holding_time_lower_limit.innertext = pressure_visualization.t_holding_time_lower_limit

xmldoc.save(path)

 

end sub

 

private function pressure_visualizationread(pressure_visualization as pressure_visualization) as pressure_visualization

 

dim path as string

dim xmldoc as new xmldocument()

path = system.io.path.getfullpath("../../../pressure_visualization.xml")

xmldoc.load(path)

dim root as xmlnode = xmldoc.selectsinglenode("pressure_visualizationconfig") '查找<bookstore>

 

dim t_device_address as xmlnode = root.childnodes(0).selectsinglenode("t_device_address") '查找t_device_address

dim t_equipment_number as xmlnode = root.childnodes(0).selectsinglenode("t_equipment_number") '查找t_equipment_number

dim t_equipment_state as xmlnode = root.childnodes(0).selectsinglenode("t_equipment_state") '查找t_equipment_state

dim t_packing_pressure as xmlnode = root.childnodes(0).selectsinglenode("t_packing_pressure") '查找t_packing_pressure

dim t_pressure_holding_time as xmlnode = root.childnodes(0).selectsinglenode("t_pressure_holding_time") '查找t_pressure_holding_time

dim t_upper_limit_pressure as xmlnode = root.childnodes(0).selectsinglenode("t_upper_limit_pressure") '查找t_upper_limit_pressure

dim t_lower_limit_pressure as xmlnode = root.childnodes(0).selectsinglenode("t_lower_limit_pressure") '查找t_lower_limit_pressure

dim t_upper_limit_holding_time as xmlnode = root.childnodes(0).selectsinglenode("t_upper_limit_holding_time") '查找t_upper_limit_holding_time

dim t_holding_time_lower_limit as xmlnode = root.childnodes(0).selectsinglenode("t_holding_time_lower_limit") '查找t_holding_time_lower_limit

pressure_visualization.t_device_address = t_device_address.innertext

pressure_visualization.t_equipment_number = t_equipment_number.innertext

pressure_visualization.t_equipment_state = t_equipment_state.innertext

pressure_visualization.t_packing_pressure = t_packing_pressure.innertext

pressure_visualization.t_pressure_holding_time = t_pressure_holding_time.innertext

pressure_visualization.t_upper_limit_pressure = t_upper_limit_pressure.innertext

pressure_visualization.t_lower_limit_pressure = t_lower_limit_pressure.innertext

pressure_visualization.t_upper_limit_holding_time = t_upper_limit_holding_time.innertext

pressure_visualization.t_holding_time_lower_limit = t_holding_time_lower_limit.innertext

 

return pressure_visualization

 

end function

 

--c#c#c#c#c#c#c#c#c#c#c#c#c#c#c#c#c#c#--c#c#c#c#c#c#---c#c#c#c#c#c#-----------------------------------------

 

 

 

/// <summary>

/// 创建xml文件

/// </summary>

public void createxmlfile()

{

xdocument xdoc = new xdocument();

//创建根节点

xelement root = new xelement("timeconfig");

xdoc.add(root); //添加根节点到xdoucment对象

xdoc.save(xmlpath); //使用xml的保存会自动在xml文件开始添加：<?xml version="1.0" encoding="utf-8"?>

 

}

 

 

fileinfo fi = new fileinfo(xmlpath);

if (fi.length <57 )

{

createxmlfile();

}

 

 

public int reatch(int id) {

xmldocument xmldoc = new xmldocument();

string path;

path = system.io.path.getfullpath("../../../lighttime.xml");

xmldoc.load(path);

xmlnode xn;

xn = xmldoc.selectsinglenode("timeconfig");

xmlnodelist xnl = xn.childnodes;

xmlnode xnc;

xnc = xn.selectsinglenode("timecon");

int num;

num = 0;

for (int i = 0; i < xn.childnodes.count - 1; i++)

{

if (xnl[i].childnodes[0].innertext ==""+id)

{

num = 1;

}

}

return num;

}

/// <summary>

/// 把id对应的时间添加到xml文件中

/// </summary>

/// <param name="id"></param>

/// <param name="time"></param>

public void addxml(int id,datetime time) {

 

 

 

string path;

xmldocument xmldoc = new xmldocument();

path = system.io.path.getfullpath("../../../lighttime.xml");

xmldoc.load(path);

xmlnode root;

root = xmldoc.selectsinglenode("timeconfig"); /*'查找<bookstore> */

xmlelement xe1;

xe1 = xmldoc.createelement("timecon"); /*'创建一个<book>节点 */

xe1.setattribute("type", "datetime");/*'设置该节点genre属性 */

xmlelement xesub1;

xesub1 = xmldoc.createelement("id");

xesub1.innertext = id.tostring(); /*'设置文本节点 */

xe1.appendchild(xesub1); /*'添加到<book>节点中 */

xmlelement xesub2;

xesub2 = xmldoc.createelement("lasttime");

xesub2.innertext = time.tostring();

xe1.appendchild(xesub2);

root.appendchild(xe1); /*'添加到<bookstore>节点中 */

xmldoc.save(path);

 

 

}

 

read

public string getreadid( ) {

string path;

path = system.io.path.getfullpath("../../../lighttime.xml");

xmldocument xmldoc=new xmldocument();

xmldoc.load(path);

xmlnode xn;

xn = xmldoc.selectsinglenode("timeconfig");

xmlnodelist xnl= xn.childnodes;

xmlnode xnc = xn.selectsinglenode("timecon");

 

string ids="";

for (int i = 0; i < xn.childnodes.count-1; i++)

{

if (convert.todatetime(xn.childnodes[i].childnodes[1].innertext) <= datetime.now)

{

ids+= xn.childnodes[i].childnodes[0].innertext+"-";

}

}

 

 

return ids;

 

}

xml 文件

 

 

<?xml version="1.0" encoding="utf-8"?>

<!--记录ic卡的信息-->

<recard>

<num>4</num>

<rfid type="ic卡">

<id>5d6ce040</id>

<rfserialnumber>8582705151485666839576784955525300</rfserialnumber>

<mood>1</mood>

</rfid>

<rfid type="ic卡">

<id>5d6ce040</id>

<rfserialnumber>8582705151485666839576784955535700</rfserialnumber>

<mood>2</mood>

</rfid>

<rfid type="ic卡">

<id>5d6ce040</id>

<rfserialnumber>8582705151485666839576784955525300</rfserialnumber>

<mood>1</mood>

</rfid>

</recard>

 

<?xml version="1.0" encoding="utf-8"?>

<pressure_visualizationconfig>

<pressure_visualization type="ic卡">

<t_device_address>77 03</t_device_address>

<t_equipment_number>1</t_equipment_number>

<t_equipment_state>压力值正常</t_equipment_state>

<t_packing_pressure>9.8</t_packing_pressure>

<t_pressure_holding_time>9</t_pressure_holding_time>

<t_upper_limit_pressure>10</t_upper_limit_pressure>

<t_lower_limit_pressure>3</t_lower_limit_pressure>

<t_upper_limit_holding_time>11</t_upper_limit_holding_time>

<t_holding_time_lower_limit>9</t_holding_time_lower_limit>

</pressure_visualization>

</pressure_visualizationconfig>