我正在尝试使用jquery从WCF Web服务进行呼叫，但是由于400错误的请求，它总是失败。
WCF服务和网站都使用IIS部署在同一服务器上。
调用WCF Web方法时在控制台中出现的错误：
无法加载资源：服务器响应状态为400 （错误请求）
我的WCF服务配置文件：
<configuration>
<connectionStrings>
<add name="ConnectionString"... />
</connectionStrings>
<appSettings>
<add key="aspnet:UseTaskFriendlySynchronizationContext" value="false" />
<add key="wcf:serviceHostingEnvironment:useClassicReadEntityBodyMode" value="true" />
</appSettings>
<system.web>
<httpRuntime maxRequestLength="4000480" executionTimeout="600" />
<compilation debug="true" targetFramework="4.0" />
<customErrors mode="Off" />
<authentication mode="Windows" />
<pages controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID" />
<sessionState mode="Off" />
</system.web>
<system.webServer>
<directoryBrowse enabled="true" />
<rewrite>
<rules>
<rule name="Disable Service1.svc" stopProcessing="true">
<match url="^Service1.svc(.*)$" />
<action type="AbortRequest" />
</rule>
<rule name="Disable Service2.svc" stopProcessing="true">
<match url="^Service2.svc(.*)$" />
<action type="AbortRequest" />
</rule>
<rule name="Enable API2 Request">
<match url="^API2/(.*)$" />
<action type="Rewrite" url="Service2.svc/{R:1}" />
</rule>
<rule name="Enable API Request">
<match url="^API/(.*)$" />
<action type="Rewrite" url="Service1.svc/{R:1}" />
</rule>
<rule name="Enabldde API Request">
<match url="^$" />
<action type="Redirect" url="AccessDeniedPage.html" />
</rule>
<rule name="Enable Requesting Method Directly xml format2">
<match url="^xml2/([a-zA-Z]*)$" />
<action type="Rewrite" url="Service2.svc/xml2/{R:1}" />
</rule>
<rule name="Enable Requesting Method Directly xml format">
<match url="^xml/([a-zA-Z]*)$" />
<action type="Rewrite" url="Service1.svc/xml/{R:1}" />
</rule>
<rule name="Enable Requesting Method Directly through json2">
<match url="^json/([a-zA-Z]*)$" />
<action type="Rewrite" url="Service2.svc/json/{R:1}" />
</rule>
<rule name="Enable Requesting Method Directly through json">
<match url="^([a-zA-Z]*)$" />
<action type="Rewrite" url="Service1.svc/{R:1}" />
</rule>
<rule name="Remove trailing slash from main directory so that it doesnt open" stopProcessing="true">
<match url="/$" />
<conditions>
<add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
<add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
</conditions>
<action type="Rewrite" redirectType="Permanent" url="{R:1}" />
</rule>
<rule name="Remove trailing slash from request" stopProcessing="true">
<match url="(.*)/$" />
<conditions>
<add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
<add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
</conditions>
<action type="Rewrite" redirectType="Permanent" url="{R:1}" />
</rule>
</rules>
</rewrite>
<httpProtocol>
<customHeaders>
<add name="Access-Control-Allow-Origin" value="*" />
<add name="Access-Control-Allow-Headers" value="Content-Type, Accept" />
<add name="Access-Control-Allow-Methods" value="POST,GET,OPTIONS" />
<add name="Access-Control-Max-Age" value="1728000" />
</customHeaders>
</httpProtocol>
</system.webServer>
<system.serviceModel>
<services>
<service name="CLService.Service1" behaviorConfiguration="Service1Behavior">
<endpoint address="unsecure/XML" binding="webHttpBinding" bindingConfiguration="webHttpBinding" contract="CLService.IService1" behaviorConfiguration="RestXMLEndpointBehavior"/>
<endpoint address="unsecure" binding="webHttpBinding" bindingConfiguration="webHttpBinding" contract="CLService.IService1" behaviorConfiguration="RestJSONEndpointBehavior"/>
<endpoint address="XML" binding="webHttpBinding" bindingConfiguration="webHttpsBinding" contract="CLService.IService1" behaviorConfiguration="RestXMLEndpointBehavior"/>
<endpoint address="" binding="webHttpBinding" bindingConfiguration="webHttpsBinding" contract="CLService.IService1" behaviorConfiguration="RestJSONEndpointBehavior"/>
<endpoint address="json" binding="webHttpBinding" bindingConfiguration="webHttpsBinding" contract="CLService.IService1" behaviorConfiguration="RestJSONEndpointBehavior" />
</service>
</services>
<behaviors>
<endpointBehaviors>
<behavior name="RestJSONEndpointBehavior">
<webHttp helpEnabled="false" defaultOutgoingResponseFormat="Json" />
</behavior>
<behavior name="RestXMLEndpointBehavior">
<webHttp helpEnabled="false" defaultOutgoingResponseFormat="Xml" />
</behavior>
</endpointBehaviors>
<serviceBehaviors>
<behavior name="Service1Behavior">
<serviceMetadata httpGetEnabled="false" />
<serviceDebug httpHelpPageEnabled="false" includeExceptionDetailInFaults="true" />
<serviceThrottling maxConcurrentCalls="200" maxConcurrentSessions="500" maxConcurrentInstances="600" />
</behavior>
<behavior name="">
<serviceThrottling maxConcurrentCalls="200" maxConcurrentSessions="500" maxConcurrentInstances="600" />
<serviceMetadata httpGetEnabled="false" />
<serviceDebug includeExceptionDetailInFaults="true" />
</behavior>
</serviceBehaviors>
</behaviors>
<bindings>
<webHttpBinding>
<binding name="webHttpsBinding" crossDomainScriptAccessEnabled="true" maxBufferSize="2000000000" maxReceivedMessageSize="2000000000" transferMode="Buffered" closeTimeout="00:10:00" openTimeout="00:10:00" receiveTimeout="00:10:00" sendTimeout="00:10:00">
<readerQuotas maxDepth="250000000" maxStringContentLength="250000000" maxArrayLength="250000000" maxBytesPerRead="250000000" maxNameTableCharCount="250000000" />
<security mode="Transport">
<transport clientCredentialType="None" />
</security>
</binding>
<binding name="webHttpBinding" maxBufferPoolSize="9990000" maxBufferSize="2000000000" maxReceivedMessageSize="2000000000" closeTimeout="00:10:00" openTimeout="00:10:00" receiveTimeout="00:10:00" sendTimeout="00:10:00" transferMode="Buffered">
<readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />
<security mode="None" />
</binding>
</webHttpBinding>
<basicHttpBinding>
<binding name="Service1Soap" />
<binding name="secureHttpBinding">
<security mode="Transport">
<transport clientCredentialType="None" />
</security>
</binding>
</basicHttpBinding>
</bindings>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" minFreeMemoryPercentageToActivateService="0" multipleSiteBindingsEnabled="true" />
</system.serviceModel>
</configuration>
IService1.cs内部的操作合同
[OperationContract]
[WebInvoke(Method = "POST", RequestFormat = WebMessageFormat.Json, UriTemplate = "MyMethod", BodyStyle = WebMessageBodyStyle.WrappedRequest)]
String MyMethod(String Query);
我的JavaScript代码：
function test(){
try {
code = getValuesWrittenInTheURLNew[0] + "";
var QueryString = "Query=select value,Lat,Lng,elementID from myTable where code = '" + code + "'";
$.ajax({
type: "POST",
async: true,
url: IP + "/MyMethod",
data: QueryString,
dataType: "json",
success: function (data) {
console.log("d data: ",data);
},
failure: function (errMsg) {
alert(errMsg);
ResultCallBack();
}
});
} catch (error) {
console.log(error.message);
}
}
答案 0 :(得分：0)
有两种解决方案，第一种解决方案：
您可以删除“ BodyStyle”，如果使用“ BodyStyle”，则需要修改JSON。
第二个解决方案：
如果您不想删除“ bodystyle”，则需要修改传入的JSON格式，如下所示：
{
"sitesMyMethod": [
"Query=select value,Lat,Lng,elementID from myTable where code = '" + code + "'"
]
}