我有以下 XML，需要反序列化以獲取“ThreadGroup.num_threads”、“ThreadGroup.ramp_time”、“HTTPSampler.path”和“HTTPSampler.domain”的值。 <TestPlan> <hashTree> <hashTree> <ThreadGroup> <stringProp name="ThreadGroup.on_sample_error">continue</stringProp> <stringProp name="ThreadGroup.num_threads">10</stringProp> <stringProp name="ThreadGroup.ramp_time">1</stringProp> <longProp name="ThreadGroup.start_time">1517853259000</longProp> <longProp name="ThreadGroup.end_time">1517853259000</longProp> <boolProp name="ThreadGroup.scheduler">false</boolProp> <stringProp name="ThreadGroup.duration"></stringProp> <stringProp name="ThreadGroup.delay"></stringProp> </ThreadGroup> <hashTree> <hashTree> <HTTPSamplerProxy> </HTTPSamplerProxy> </hashTree> </hashTree> </hashTree> </hashTree> </TestPlan>上面的代碼給出了具有許多附加屬性值的所需值，并且代碼似乎也很長。但是，我需要這 4 個(gè)值。請(qǐng)?zhí)岢鋈魏胃玫慕鉀Q方案。
3 回答
Helenr
TA貢獻(xiàn)1780條經(jīng)驗(yàn) 獲得超4個(gè)贊
我已經(jīng)更新了它以使其易于使用。
我開始之前，我決定，你可能想的可能性longProps在HTTPSamplerProxy部分。它還使編碼（很多）更容易和更清潔。我已經(jīng)在沒有任何 longProps 的情況下對(duì)其進(jìn)行了測試，只是為了確保它以您期望的方式與現(xiàn)有 XML 一起工作。
原流程
對(duì)原始描述的更新以斜體顯示
我所做的是使用標(biāo)準(zhǔn)的 XSD.exe 工具獲取您的源 XML 文件（在 HTTPSamplerProxy 部分中有一個(gè)額外的 longProp）并創(chuàng)建一個(gè) XSD。然后我再次使用 XSD.exe 創(chuàng)建了一個(gè)（非常丑陋的）C# 文件。那時(shí)，整個(gè)混亂的根源是 TestPlan 類。這是 XSD.exe 生成的內(nèi)容（更新 - 對(duì)新發(fā)出的 XSD.exe 代碼的唯一更改是頂部的命名空間聲明）：
/// <remarks/>
[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "4.0.30319.33440")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true)]
[System.Xml.Serialization.XmlRootAttribute(Namespace = "", IsNullable = false)]
public partial class hashTree {
private hashTreeHTTPSamplerProxy[] hTTPSamplerProxyField;
private hashTree[] hashTree1Field;
private hashTreeThreadGroup[] threadGroupField;
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute("HTTPSamplerProxy", Form = System.Xml.Schema.XmlSchemaForm.Unqualified)]
public hashTreeHTTPSamplerProxy[] HTTPSamplerProxy {
get {
return this.hTTPSamplerProxyField;
}
set {
this.hTTPSamplerProxyField = value;
}
}
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute("hashTree")]
public hashTree[] hashTree1 {
get {
return this.hashTree1Field;
}
set {
this.hashTree1Field = value;
}
}
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute("ThreadGroup", Form = System.Xml.Schema.XmlSchemaForm.Unqualified)]
public hashTreeThreadGroup[] ThreadGroup {
get {
return this.threadGroupField;
}
set {
this.threadGroupField = value;
}
}
}
/// <remarks/>
[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "4.0.30319.33440")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true)]
public partial class hashTreeHTTPSamplerProxy {
private longProp[] longPropField;
private stringProp[] stringPropField;
private boolProp[] boolPropField;
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute("longProp", IsNullable = true)]
public longProp[] longProp {
get {
return this.longPropField;
}
set {
this.longPropField = value;
}
}
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute("stringProp", IsNullable = true)]
public stringProp[] stringProp {
get {
return this.stringPropField;
}
set {
this.stringPropField = value;
}
}
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute("boolProp", IsNullable = true)]
public boolProp[] boolProp {
get {
return this.boolPropField;
}
set {
this.boolPropField = value;
}
}
}
/// <remarks/>
[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "4.0.30319.33440")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true)]
[System.Xml.Serialization.XmlRootAttribute(Namespace = "", IsNullable = true)]
public partial class longProp {
private string nameField;
private string valueField;
/// <remarks/>
[System.Xml.Serialization.XmlAttributeAttribute()]
public string name {
get {
return this.nameField;
}
set {
this.nameField = value;
}
}
/// <remarks/>
[System.Xml.Serialization.XmlTextAttribute()]
public string Value {
get {
return this.valueField;
}
set {
this.valueField = value;
}
}
}
/// <remarks/>
[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "4.0.30319.33440")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true)]
[System.Xml.Serialization.XmlRootAttribute(Namespace = "", IsNullable = true)]
public partial class stringProp {
private string nameField;
private string valueField;
/// <remarks/>
[System.Xml.Serialization.XmlAttributeAttribute()]
public string name {
get {
return this.nameField;
}
set {
this.nameField = value;
}
}
/// <remarks/>
[System.Xml.Serialization.XmlTextAttribute()]
public string Value {
get {
return this.valueField;
}
set {
this.valueField = value;
}
}
}
/// <remarks/>
[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "4.0.30319.33440")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true)]
[System.Xml.Serialization.XmlRootAttribute(Namespace = "", IsNullable = true)]
public partial class boolProp {
private string nameField;
private string valueField;
/// <remarks/>
[System.Xml.Serialization.XmlAttributeAttribute()]
public string name {
get {
return this.nameField;
}
set {
this.nameField = value;
}
}
/// <remarks/>
[System.Xml.Serialization.XmlTextAttribute()]
public string Value {
get {
return this.valueField;
}
set {
this.valueField = value;
}
}
}
/// <remarks/>
[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "4.0.30319.33440")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true)]
public partial class hashTreeThreadGroup {
private stringProp[] stringPropField;
private longProp[] longPropField;
private boolProp[] boolPropField;
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute("stringProp", IsNullable = true)]
public stringProp[] stringProp {
get {
return this.stringPropField;
}
set {
this.stringPropField = value;
}
}
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute("longProp", IsNullable = true)]
public longProp[] longProp {
get {
return this.longPropField;
}
set {
this.longPropField = value;
}
}
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute("boolProp", IsNullable = true)]
public boolProp[] boolProp {
get {
return this.boolPropField;
}
set {
this.boolPropField = value;
}
}
}
/// <remarks/>
[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "4.0.30319.33440")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true)]
[System.Xml.Serialization.XmlRootAttribute(Namespace = "", IsNullable = false)]
public partial class TestPlan {
private object[] itemsField;
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute("boolProp", typeof(boolProp), IsNullable = true)]
[System.Xml.Serialization.XmlElementAttribute("hashTree", typeof(hashTree))]
[System.Xml.Serialization.XmlElementAttribute("longProp", typeof(longProp), IsNullable = true)]
[System.Xml.Serialization.XmlElementAttribute("stringProp", typeof(stringProp), IsNullable = true)]
public object[] Items {
get {
return this.itemsField;
}
set {
this.itemsField = value;
}
}
}
其余的大部分是新的
XSD.exe 發(fā)出的代碼創(chuàng)建了一組部分類。我在一個(gè)單獨(dú)的源文件中以幾種方式擴(kuò)展了部分類。但是，在開始之前，我聲明了一個(gè)接口和一個(gè)靜態(tài)工作類。
public interface IGrouping {
boolProp[] boolProp { get; }
stringProp[] stringProp { get; }
longProp[] longProp { get; }
Dictionary<string, bool?> BoolProperties { get; }
Dictionary<string, long?> LongProperties { get; }
Dictionary<string, string> StringProperties { get; }
}
和
public static class PropertyGrouper {
public static void GroupProperties(IGrouping itemToGroup) {
//has this been done before, if yes, return
if (itemToGroup.StringProperties.Count > 0 || itemToGroup.BoolProperties.Count > 0 || itemToGroup.LongProperties.Count > 0 ) {
return;
}
//otherwise
if (itemToGroup.boolProp != null) {
foreach (var bProp in itemToGroup.boolProp) {
var succeeded = bool.TryParse(bProp.Value, out var bValue);
itemToGroup.BoolProperties.Add(bProp.name, succeeded ? bValue : (bool?)null);
}
}
if (itemToGroup.longProp != null) {
foreach (var lProp in itemToGroup.longProp) {
var succeeded = long.TryParse(lProp.Value, out var lValue);
itemToGroup.LongProperties.Add(lProp.name, succeeded ? lValue : (long?)null);
}
}
if (itemToGroup.stringProp != null) {
foreach (var sProp in itemToGroup.stringProp) {
itemToGroup.StringProperties.Add(sProp.name, sProp.Value);
}
}
}
}
有了這些，我擴(kuò)展了每個(gè) XSD.exe 發(fā)出的類。這TestPlan門課很簡單——我只是添加了一個(gè)類型化的屬性：
public partial class TestPlan {
[XmlIgnore]
public hashTree HashTree => Items[0] as hashTree;
}
在hashTreeThreadGroup與hashTreeHTTPSamplerProxy類相同的方式（請(qǐng)記住，我沒有點(diǎn)名任何這些類的，XSD.EXE從XML命名他們）進(jìn)行了擴(kuò)展。每個(gè)都被聲明為實(shí)現(xiàn)IGrouping接口，并且每個(gè)都有 3 個(gè)屬性字典（根據(jù) 的要求IGrouping）。IGrouping接口中的三個(gè)數(shù)組位于XSD 發(fā)出的代碼中：
public partial class hashTreeThreadGroup : IGrouping {
[XmlIgnore]
public Dictionary<string, bool?> BoolProperties { get; } = new Dictionary<string, bool?>();
[XmlIgnore]
public Dictionary<string, long?> LongProperties { get; } = new Dictionary<string, long?>();
[XmlIgnore]
public Dictionary<string, string> StringProperties { get; } = new Dictionary<string, string>();
}
public partial class hashTreeHTTPSamplerProxy : IGrouping {
[XmlIgnore]
public Dictionary<string, bool?> BoolProperties { get; } = new Dictionary<string, bool?>();
[XmlIgnore]
public Dictionary<string, long?> LongProperties { get; } = new Dictionary<string, long?>();
[XmlIgnore]
public Dictionary<string, string> StringProperties { get; } = new Dictionary<string, string>();
}
最后，我延長了hashTree課程。我添加了三個(gè)類型化的屬性，每個(gè)都有一個(gè)空檢查以使事情變得干凈。ThreadGroupItem 和 HttpSamplerProxyItem 屬性分別調(diào)用PropertyGrouper.GroupProperties. 第一次調(diào)用時(shí)，XmlSerializer 創(chuàng)建的屬性數(shù)組中的屬性被復(fù)制到字典中。
public partial class hashTree {
[XmlIgnore]
public hashTree HashTree {
get {
if (hashTree1 != null) {
return hashTree1[0] as hashTree;
} else {
return null;
}
}
}
[XmlIgnore]
public hashTreeThreadGroup ThreadGroupItem {
get {
if (ThreadGroup != null) {
var threadGroup = ThreadGroup[0]; // as hashTreeThreadGroup;
PropertyGrouper.GroupProperties(threadGroup);
return threadGroup;
} else {
return null;
}
}
}
[XmlIgnore]
public hashTreeHTTPSamplerProxy HttpSamplerProxyItem {
get {
if (HTTPSamplerProxy != null) {
var httpSamplerProxy = HTTPSamplerProxy[0];
PropertyGrouper.GroupProperties(httpSamplerProxy);
return httpSamplerProxy;
} else {
return null;
}
}
}
}
一切就緒后，我運(yùn)行了相同的代碼。
TestPlan result;
using (var stream = new FileStream("source.xml", FileMode.Open, FileAccess.Read)) {
var serializer = new XmlSerializer(typeof(TestPlan));
result = (TestPlan)serializer.Deserialize(stream);
}
此代碼是我使用第一個(gè)示例訪問您的數(shù)據(jù)的方式。
var numThreadsParsed = long.TryParse((((XmlSerializeForm.hashTree)result.Items[0]).hashTree1[0].ThreadGroup[0].stringProp[1].Value), out var numThreads);
var httpSamplerPath = ((XmlSerializeForm.hashTree)result.Items[0]).hashTree1[0].hashTree1[0].hashTree1[0].HTTPSamplerProxy[0].stringProp[4].Value;
但是，通過我做了一些簡單的添加（好吧，代碼并沒有那么復(fù)雜，但是做對(duì)了），訪問屬性就更簡潔了：
string numThreadsParsed = result.HashTree.HashTree.ThreadGroupItem.StringProperties["ThreadGroup.num_threads"];
long? startTime = result.HashTree.HashTree.ThreadGroupItem.LongProperties["ThreadGroup.start_time"];
string httpSamplerPath = result.HashTree.HashTree.HashTree.HashTree.HttpSamplerProxyItem.StringProperties["HTTPSampler.path"];
bool? useKeepAlive = result.HashTree.HashTree.HashTree.HashTree.HttpSamplerProxyItem.BoolProperties["HTTPSampler.use_keepalive"];
給你！
蕪湖不蕪
TA貢獻(xiàn)1796條經(jīng)驗(yàn) 獲得超7個(gè)贊
使用外部 lib Cinchoo ETL - 一個(gè)開源庫，您可以輕松獲取所選節(jié)點(diǎn)值，如下所示
定義 .NET 類型
public class TestPlan
{
[ChoXmlNodeRecordField(XPath = @"/ThreadGroup/stringProp[@name=""ThreadGroup.on_sample_error""]")]
public string NumThreads { get; set; }
[ChoXmlNodeRecordField(XPath = @"/ThreadGroup/stringProp[@name=""ThreadGroup.ramp_time""]")]
public int RampTime { get; set; }
[ChoXmlNodeRecordField(XPath = @"/hashTree/hashTree/HTTPSamplerProxy/stringProp[@name=""HTTPSampler.path""]")]
public string Path { get; set; }
[ChoXmlNodeRecordField(XPath = @"/hashTree/hashTree/HTTPSamplerProxy/stringProp[@name=""HTTPSampler.domain""]")]
public string Domain { get; set; }
}
然后使用 Cinchoo ETL 反序列化輸入 xml，如下所示
static void Main()
{
using (var p = new ChoXmlReader<TestPlan>("*** XML file path ***")
.WithXPath("/TestPlan/hashTree/hashTree")
)
{
foreach (var rec in p)
Console.WriteLine(rec.Dump());
}
}
輸出：
-- ChoXmlReaderTest.Program+TestPlan State --
NumThreads: continue
RampTime: 1
Path: /v1/test/test?debug=false
Domain: www.abc.com/abc-service-api
希望能幫助到你。
免責(zé)聲明：我是這個(gè)庫的作者。
天涯盡頭無女友
TA貢獻(xiàn)1831條經(jīng)驗(yàn) 獲得超9個(gè)贊
使用 xml linq ：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;
namespace ConsoleApplication1
{
class Program
{
const string FILENAME = @"c:\temp\test.xml";
static void Main(string[] args)
{
XmlData data = new XmlData(FILENAME);
}
}
public class XmlData
{
public int? num_threads { get; set;}
public int? ramp_time { get;set;}
List<SamplerProxy> HTTPSamplerProxies { get;set;}
public XmlData(string filename)
{
XDocument doc = XDocument.Load(filename);
XElement threadGroup = doc.Descendants("ThreadGroup").FirstOrDefault();
num_threads = (int?)threadGroup.Elements("stringProp").Where(x => (string)x.Attribute("name") == "ThreadGroup.num_threads").FirstOrDefault();
ramp_time = (int?)threadGroup.Elements("stringProp").Where(x => (string)x.Attribute("name") == "ThreadGroup.ramp_time").FirstOrDefault();
HTTPSamplerProxies = doc.Descendants("HTTPSamplerProxy").Select(x => new SamplerProxy() {
path = (string)x.Elements("stringProp").Where(y => (string)y.Attribute("name") == "HTTPSampler.path").FirstOrDefault(),
domain = (string)x.Elements("stringProp").Where(y => (string)y.Attribute("name") == "HTTPSampler.domain").FirstOrDefault()
}).ToList();
}
}
public class SamplerProxy
{
public string path { get; set; }
public string domain { get; set; }
}
}
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