ContentType的故事
上周开始了某个项目的接口对接,由于对方是WebApi,所以就用SoapUI进行调试啦。
刚开始用SoapUI调试还是很顺利的,当事情太过于顺利的时候往往就。。。。。
当前项目用的是代理的方式构建请求体,也就是烂大街的那种代码(贴最后了)
看着没啥毛病是吧,然鹅,我们正常看的WebService都是长酱紫的:
http://xxx.xxx.xxx.xxx:8090/PathologyAppInfo/PathologyAppInfoService.asmx
对方给的是酱紫的:
http://xxx.xxx.xxx.xx:11010/csp/healthshare/bkip/BKIP.AppInfo.PathologyAppInfo.BS.PathologyAppInfo.cls?CfgItem=PathologyAppInfoBS
是不是发现有点点不一样了!!!
是的,他们的尾巴带了
?CfgItem=PathologyAppInfoBS
然后,框架认不出来了。怎么办嘞,又要按时交付,于是乎内网穿透大法搞起来,添加添加WebService引用总可以吧。终究是我错付了,还是不行,还是异常400。
既然这条路走不通,曲线救国,SoapService归根到底就是一个Post/Get请求,一顿操作,分析了下SoapUI的请求过程,请求体抄起来:
于是乎,我又得到了一个新的错误,直接就跳转了,压根就调用不到啊。。。。。。。。。。。
百度就不用百度了,全网的ContentType都是Application/xml
经过一番努力,把ContentType改成Application/Soap+xml就行了!!!感天动地
public class WebServiceProxy
{
private readonly ILog _log = LogHelper.GetLog();
#region 私有变量和属性定义
/// <summary>
/// web服务地址
/// </summary>
private string _wsdlUrl = string.Empty;
/// <summary>
/// web服务名称
/// </summary>
private string _wsdlName = string.Empty;
/// <summary>
/// 代理类命名空间
/// </summary>
private string _wsdlNamespace = "FrameWork.WebService.DynamicWebServiceCalling.{0}";
/// <summary>
/// 代理类类型名称
/// </summary>
private Type _typeName = null;
/// <summary>
/// 程序集名称
/// </summary>
private string _assName = string.Empty;
/// <summary>
/// 代理类所在程序集路径
/// </summary>
private string _assPath = string.Empty;
/// <summary>
/// 代理类的实例
/// </summary>
private object _instance = null;
/// <summary>
/// 代理类的实例
/// </summary>
private object Instance
{
get
{
if (_instance == null)
{
_instance = Activator.CreateInstance(_typeName);
return _instance;
}
else
return _instance;
}
}
#endregion
#region 构造函数
public WebServiceProxy(string wsdlUrl)
{
if (string.IsNullOrWhiteSpace(wsdlUrl))
{
return;
}
if (!wsdlUrl.Contains("wsdl"))
{
wsdlUrl += "?wsdl";
}
this._wsdlUrl = wsdlUrl;
string wsdlName = getWsclassName(wsdlUrl);
this._wsdlName = wsdlName;
this._assName = string.Format(_wsdlNamespace, wsdlName);
this._assPath = Path.GetTempPath() + this._assName + getMd5Sum(this._wsdlUrl) + ".dll";
this.CreateServiceAssembly();
}
#endregion
#region 得到WSDL信息,生成本地代理类并编译为DLL,构造函数调用,类生成时加载
/// <summary>
/// 得到WSDL信息,生成本地代理类并编译为DLL
/// </summary>
private void CreateServiceAssembly()
{
if (this.checkCache())
{
this.initTypeName();
return;
}
if (string.IsNullOrEmpty(this._wsdlUrl))
{
return;
}
try
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(_wsdlUrl);
request.Timeout = 10000;
request.ReadWriteTimeout = 10000;
var response = request.GetResponse();
//使用WebClient下载WSDL信息
WebClient web = new WebClient();
Stream stream = web.OpenRead(this._wsdlUrl);
ServiceDescription description = ServiceDescription.Read(stream);//创建和格式化WSDL文档
ServiceDescriptionImporter importer = new ServiceDescriptionImporter();//创建客户端代理代理类
importer.ProtocolName = "Soap";
importer.Style = ServiceDescriptionImportStyle.Client; //生成客户端代理
importer.CodeGenerationOptions = CodeGenerationOptions.GenerateProperties | CodeGenerationOptions.GenerateNewAsync;
importer.AddServiceDescription(description, null, null);//添加WSDL文档
//使用CodeDom编译客户端代理类
CodeNamespace nmspace = new CodeNamespace(_assName); //为代理类添加命名空间
CodeCompileUnit unit = new CodeCompileUnit();
unit.Namespaces.Add(nmspace);
this.checkForImports(this._wsdlUrl, importer);
ServiceDescriptionImportWarnings warning = importer.Import(nmspace, unit);
CodeDomProvider provider = CodeDomProvider.CreateProvider("CSharp");
CompilerParameters parameter = new CompilerParameters();
parameter.ReferencedAssemblies.Add("System.dll");
parameter.ReferencedAssemblies.Add("System.XML.dll");
parameter.ReferencedAssemblies.Add("System.Web.Services.dll");
parameter.ReferencedAssemblies.Add("System.Data.dll");
parameter.GenerateExecutable = false;
parameter.GenerateInMemory = false;
parameter.IncludeDebugInformation = false;
CompilerResults result = provider.CompileAssemblyFromDom(parameter, unit);
provider.Dispose();
if (result.Errors.HasErrors)
{
string errors = string.Format(@"编译错误:{0}错误!", result.Errors.Count);
foreach (CompilerError error in result.Errors)
{
errors += error.ErrorText;
}
throw new Exception(errors);
}
this.copyTempAssembly(result.PathToAssembly);
this.initTypeName();
_log.Info($"ws代理:{_wsdlUrl}创建成功。");
}
catch (Exception e)
{
_log.Fatal($"创建{_wsdlUrl}的webservice代理出现异常,异常信息为{e}。");
}
}
#endregion
#region 执行Web服务方法
/// <summary>
/// 执行代理类指定方法,有返回值
/// </summary>
/// <param name="methodName">方法名称</param>
/// <param name="param">参数</param>
/// <returns>object</returns>
public object ExecuteQuery(string methodName, object[] param)
{
object rtnObj;
try
{
if (this._typeName == null)
{
throw new TypeLoadException("Web服务访问类名【" + this._wsdlName + "】不正确,请检查!");
}
//调用方法
MethodInfo mi = this._typeName.GetMethod(methodName);
if (mi == null)
{
throw new TypeLoadException("Web服务访问方法名【" + methodName + "】不正确,请检查!");
}
try
{
_log.Debug($"调用接口{_wsdlName}----{methodName}参数:{param}");
rtnObj = mi.Invoke(Instance, param);
}
catch (TypeLoadException tle)
{
throw new TypeLoadException("Web服务访问方法【" + methodName + "】参数个数不正确,请检查!", new TypeLoadException(tle.StackTrace));
}
}
catch (Exception ex)
{
throw new Exception(ex.Message, new Exception(ex.StackTrace));
}
return rtnObj;
}
/// <summary>
/// 执行代理类指定方法,无返回值
/// </summary>
/// <param name="methodName">方法名称</param>
/// <param name="param">参数</param>
public void ExecuteNoQuery(string methodName, object[] param)
{
try
{
if (this._typeName == null)
{
throw new TypeLoadException("Web服务访问类名【" + this._wsdlName + "】不正确,请检查!");
}
//调用方法
MethodInfo mi = this._typeName.GetMethod(methodName);
if (mi == null)
{
throw new TypeLoadException("Web服务访问方法名【" + methodName + "】不正确,请检查!");
}
try
{
_log.Debug($"调用接口{_wsdlName}----{methodName}参数:{param}");
mi.Invoke(Instance, param);
}
catch (TypeLoadException tle)
{
throw new TypeLoadException("Web服务访问方法【" + methodName + "】参数个数不正确,请检查!", new TypeLoadException(tle.StackTrace));
}
}
catch (Exception ex)
{
throw new Exception(ex.Message, new Exception(ex.StackTrace));
}
}
#endregion
#region 私有方法
/// <summary>
/// 得到代理类类型名称
/// </summary>
private void initTypeName()
{
Assembly serviceAsm = Assembly.LoadFrom(this._assPath);
Type[] types = serviceAsm.GetTypes();
string objTypeName = "";
foreach (Type t in types)
{
if (t.BaseType == typeof(SoapHttpClientProtocol))
{
objTypeName = t.Name;
break;
}
}
_typeName = serviceAsm.GetType(this._assName + "." + objTypeName);
}
/// <summary>
/// 根据web service文档架构向代理类添加ServiceDescription和XmlSchema
/// </summary>
/// <param name="baseWSDLUrl">web服务地址</param>
/// <param name="importer">代理类</param>
private void checkForImports(string baseWsdlUrl, ServiceDescriptionImporter importer)
{
DiscoveryClientProtocol dcp = new DiscoveryClientProtocol();
dcp.DiscoverAny(baseWsdlUrl);
dcp.ResolveAll();
foreach (object osd in dcp.Documents.Values)
{
if (osd is ServiceDescription) importer.AddServiceDescription((ServiceDescription)osd, null, null); ;
if (osd is XmlSchema) importer.Schemas.Add((XmlSchema)osd);
}
}
/// <summary>
/// 复制程序集到指定路径
/// </summary>
/// <param name="pathToAssembly">程序集路径</param>
private void copyTempAssembly(string pathToAssembly)
{
File.Copy(pathToAssembly, this._assPath);
}
private string getMd5Sum(string str)
{
Encoder enc = System.Text.Encoding.Unicode.GetEncoder();
byte[] unicodeText = new byte[str.Length * 2];
enc.GetBytes(str.ToCharArray(), 0, str.Length, unicodeText, 0, true);
MD5 md5 = new MD5CryptoServiceProvider();
byte[] result = md5.ComputeHash(unicodeText);
StringBuilder sb = new StringBuilder();
for (int i = 0; i < result.Length; i++)
{
sb.Append(result[i].ToString("X2"));
}
return sb.ToString();
}
/// <summary>
/// 是否已经存在该程序集
/// </summary>
/// <returns>false:不存在该程序集,true:已经存在该程序集</returns>
private bool checkCache()
{
if (File.Exists(this._assPath))
{
return true;
}
return false;
}
//私有方法,默认取url入口的文件名为类名
private static string getWsclassName(string wsdlUrl)
{
string[] parts = wsdlUrl.Split('/');
string[] pps = parts[parts.Length - 1].Split('.');
return pps[0];
}
#endregion
}