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  • webapi权限常见错误

    webapi权限常见错误

    错误一:

    Response for preflight has invalid HTTP status code 405.

    解决方案:

    屏蔽配置文件中的如下代码

       <!--<handlers>
          <remove name="ExtensionlessUrlHandler-Integrated-4.0" />
          <remove name="OPTIONSVerbHandler" />
          <remove name="TRACEVerbHandler" />
          <add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="*" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
        </handlers>-->

    错误二:

    No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:2062' is therefore not allowed access. The response had HTTP status code 500.
     <!--<add name="access-control-allow-headers" value="accept,origin,token,content-type,Authorization" />-->

    解决方案:
    跨域造成的,解决跨域即可:

    <system.webServer>
        <httpProtocol>
          <customHeaders>
            <!-- Enable Cross Domain AJAX calls -->
            <add name="Access-Control-Allow-Origin" value="*" />
            <add name="Access-Control-Allow-Methods" value="GET,POST,PUT,DELETE,OPTIONS" />
            <add name="Access-Control-Allow-Headers" value="Content-Type,Authorization" />
          </customHeaders>
        </httpProtocol>
        <modules runAllManagedModulesForAllRequests="true"/>
      </system.webServer>

    错误三:

    The 'Access-Control-Allow-Origin' header has a value 'http://localhost:2062/' that is not equal to the supplied origin. Origin 'http://localhost:2062' is therefore not allowed access.

    解决方案:

    由于手误造成的,域名后面不能有任何字符或符合

    正确:'http://localhost:2062

    错误:'http://localhost:2062/

    错误四:

    404 Not Found

    解决方案:

    增加两个modules任意一个都可以解决404,但如果验证权限会出现405错误;

      <modules>
          <remove name="UrlRoutingModule-4.0"/>
          <add name="UrlRoutingModule-4.0" type="System.Web.Routing.UrlRoutingModule" preCondition=""/>
        </modules>

        <modules runAllManagedModulesForAllRequests="true">
          <remove name="WebDAVModule" />
        </modules>

    错误五:

    Failed to load http://192.168.31.110:8014/api/Login/CheckLogin: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://192.168.31.110:8013' is therefore not allowed access.

    解决方案:

     <httpProtocol>
          <customHeaders>
            <add name="Access-Control-Allow-Origin" value="*" />
            <add name="Access-Control-Allow-Headers" value="Content-Type,x-xsrf-token,X-Requested-With" />
            <add name="Access-Control-Allow-Methods" value="GET, POST, PUT, DELETE, OPTIONS" />
          </customHeaders>
        </httpProtocol>
    错误六:
    The requested resource does not support http method 'OPTIONS
    解决方案:

    错误七:
    <!--IIS7/7.5上必须加这个配置,否则访问报错-->
    23         <modules runAllManagedModulesForAllRequests="true">
    24             <remove name="WebDAVModule" />
    25         </modules>
    26         <validation validateIntegratedModeConfiguration="false" />
    27         <handlers>
    28             <remove name="WebDAV" />
    29             <remove name="WebAPI_64bit" />
    30             <remove name="WebAPI_32bit" />
    31             <remove name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" />
    32             <remove name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" />
    33             <remove name="ExtensionlessUrlHandler-Integrated-4.0" />
    34             <add name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" resourceType="Unspecified" requireAccess="Script" modules="IsapiModule" scriptProcessor="%windir%Microsoft.NETFrameworkv4.0.30319aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness32" responseBufferLimit="0" />
    35             <add name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" resourceType="Unspecified" requireAccess="Script" modules="IsapiModule" scriptProcessor="%windir%Microsoft.NETFramework64v4.0.30319aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness64" responseBufferLimit="0" />
    36             <add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" resourceType="Unspecified" requireAccess="Script" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
    37             <add name="WebAPI_64bit" path="*" verb="*" modules="IsapiModule" scriptProcessor="%windir%Microsoft.NETFramework64v4.0.30319aspnet_isapi.dll" resourceType="Unspecified" requireAccess="None" preCondition="classicMode,runtimeVersionv4.0,bitness64" />
    38             <add name="WebAPI_32bit" path="*" verb="*" modules="IsapiModule" scriptProcessor="%windir%Microsoft.NETFrameworkv4.0.30319aspnet_isapi.dll" resourceType="Unspecified" requireAccess="None" preCondition="classicMode,runtimeVersionv4.0,bitness32" />
    39         </handlers>

    -----
    错误八:
          <remove name="OPTIONSVerbHandler" />
    这个是罪魁祸首,移除即可

    HTTP Error 403.14 - Forbidden

    Web 服务器被配置为不列出此目录的内容。

    解决方案:

     
    jQuery.support.cors = true;//设定支持跨域
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  • 原文地址:https://www.cnblogs.com/zlp520/p/9406730.html
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