Validity check (Default: basic validity check) : the validity check verifies that the data model follows the semantic rules for the model format.
validitycheck(默认值：basic validity check)：有效性检查，验证数据模型是否遵从模型格式的语义规则。
By default, both Apache and IIS embed data in the ETag that dramatically reduces the odds of the validity test succeeding on web sites with multiple servers.
默认情况下，Apache和IIS都会把数据嵌入ETag中，这会显著减少多服务器间的文件验证冲突。
By default, both Apache and IIS embed data in the ETag that dramatically reduces the odds of the validity test succeeding on web sites with multiple servers.
默认情况下，Apache和IIS都会把数据嵌入ETag中，这会显著减少多服务器间的文件验证冲突。
应用推荐