XML Validating Filter

XML 验证过滤器允许您根据提供的模式实例来验证传入的消息。支持以下模式类型：

The XML Validating Filter lets you validate incoming messages against provided schema instances. The following schema types are supported:

xml-schema ([role="bare"]https://www.w3.org/2001/XMLSchema)
relax-ng ([role="bare"]https://relaxng.org)

验证失败的消息可以静默丢弃或转发到可定义的 discard-channel。此外，您可以配置此过滤器，以便在验证失败时抛出 Exception。

Messages that fail validation can either be silently dropped or be forwarded to a definable discard-channel. Furthermore, you can configure this filter to throw an Exception in case validation fails.

以下列表显示了所有可用的配置参数：

The following listing shows all the available configuration parameters:

<int-xml:validating-filter discard-channel=""                    1
                           id=""                                 2
                           input-channel=""                      3
                           output-channel=""                     4
                           schema-location=""                    5
                           schema-type="xml-schema"              6
                           throw-exception-on-rejection="false"  7
                           xml-converter=""                      8
                           xml-validator="">                     9
    <int:poller .../>                                            10
</int-xml:validating-filter>

1	Message channel where you want rejected messages to be sent. Optional.
2	ID for the underlying bean definition. Optional.
3	The receiving message channel of this endpoint. Optional.
4	Message channel where you want accepted messages to be sent. Optional.
5	Sets the location of the schema to validate the message’s payload against. Internally uses the `org.springframework.core.io.Resource` interface. You can set this attribute or the `xml-validator` attribute but not both. Optional.
6	Sets the schema type. Can be either `xml-schema` or `relax-ng`. Optional. If not set, it defaults to `xml-schema`, which internally translates to `org.springframework.xml.validation.XmlValidatorFactory#SCHEMA_W3C_XML`.
7	If `true`, a `MessageRejectedException` is thrown if validation fails for the provided Message’s payload. Defaults to `false` if not set. Optional.
8	Reference to a custom `org.springframework.integration.xml.XmlPayloadConverter` strategy. Optional.
9	Reference to a custom `sorg.springframework.xml.validation.XmlValidator` strategy. You can set this attribute or the `schema-location` attribute but not both. Optional.
10	A poller to use with the XPath filter. Optional.