方法1:
web.config 内容如下:
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<system.webServer>
<security>
<requestFiltering allowDoubleEscaping="true"/>
</security>
</system.webServer>
</configuration>
只需在其中添加这一节 <requestFiltering allowDoubleEscaping="true"/>
就行了.
方法2: