从WSDL Parse出Syntax Tree

我们可以用这个方法来读取wsdl文件：

using System.ServiceModel.Description;using WsdlNS = System.Web.Services.Description;public static void LoadFile(FileInfo fileInfo){ // Try Opening File as an XML Document //------------------------------------------------------------------------------------------- using (XmlReader reader = XmlReader.Create(fileInfo.Open(FileMode.Open, FileAccess.Read, FileShare.Read))) { WsdlNS.ServiceDescription wsdl; wsdl = WsdlNS.ServiceDescription.Read(reader); MetadataSection metadataSection = MetadataSection.CreateFromServiceDescription(wsdl); List<MetadataSection> list = new List<MetadataSection> (); list.Add(metadataSection); WsdlImporter importer = new WsdlImporter(new MetadataSet(list)); var allContracts = importer.ImportAllContracts(); }} 

但是这样我们无法读取到Data Stucture的信息。

 

通过阅读svcutil的代码和查阅MSDN，得出了一个方法来，就是在WsdlImporter的State属性里加上一个定制的System.Runtime.Serialization.XsdDataContractImporter，这个在Import的过程中会把Data Structure的内容读进来。

用法截取了MSDN的一段代码：

static void GenerateCSCodeForService(EndpointAddress metadataAddress, string outputFile){ MetadataExchangeClient mexClient = new MetadataExchangeClient(metadataAddress); mexClient.ResolveMetadataReferences = true; MetadataSet metaDocs = mexClient.GetMetadata();WsdlImporter importer = new WsdlImporter(metaDocs); ServiceContractGenerator generator = new ServiceContractGenerator(); // Add our custom DCAnnotationSurrogate // to write XSD annotations into the comments. object dataContractImporter; XsdDataContractImporter xsdDCImporter; if (!importer.State.TryGetValue(typeof(XsdDataContractImporter), out dataContractImporter)) { Console.WriteLine("Couldn't find the XsdDataContractImporter! Adding custom importer."); xsdDCImporter = new XsdDataContractImporter(); xsdDCImporter.Options = new ImportOptions(); importer.State.Add(typeof(XsdDataContractImporter), xsdDCImporter); } else { xsdDCImporter = (XsdDataContractImporter)dataContractImporter; if (xsdDCImporter.Options == null) { Console.WriteLine("There were no ImportOptions on the importer."); xsdDCImporter.Options = new ImportOptions(); } } xsdDCImporter.Options.DataContractSurrogate = new DCAnnotationSurrogate(); // Uncomment the following code if you are going to do your work programmatically rather than add // the WsdlDocumentationImporters through a configuration file. /* // The following code inserts a custom WsdlImporter without removing the other // importers already in the collection. System.Collections.Generic.IEnumerable<IWsdlImportExtension> exts = importer.WsdlImportExtensions; System.Collections.Generic.List<IWsdlImportExtension> newExts = new System.Collections.Generic.List<IWsdlImportExtension>(); foreach (IWsdlImportExtension ext in exts) { Console.WriteLine("Default WSDL import extensions: {0}", ext.GetType().Name); newExts.Add(ext); } newExts.Add(new WsdlDocumentationImporter()); System.Collections.Generic.IEnumerable<IPolicyImportExtension> polExts = importer.PolicyImportExtensions; importer = new WsdlImporter(metaDocs, polExts, newExts); */ System.Collections.ObjectModel.Collection<ContractDescription> contracts = importer.ImportAllContracts(); importer.ImportAllEndpoints();foreach (ContractDescription contract in contracts){generator.GenerateServiceContractType(contract);} if (generator.Errors.Count != 0) throw new Exception("There were errors during code compilation."); // Write the code dom System.CodeDom.Compiler.CodeGeneratorOptions options = new System.CodeDom.Compiler.CodeGeneratorOptions();options.BracingStyle = "C";System.CodeDom.Compiler.CodeDomProvider codeDomProvider = System.CodeDom.Compiler.CodeDomProvider.CreateProvider("C#");System.CodeDom.Compiler.IndentedTextWriter textWriter = new System.CodeDom.Compiler.IndentedTextWriter(new System.IO.StreamWriter(outputFile));codeDomProvider.GenerateCodeFromCompileUnit( generator.TargetCompileUnit, textWriter, options );textWriter.Close();}