红帽全球峰会55.3.2. 消息标头 Camel 2.8+
Camel 2.8 中的标头更改
标头名称和支持的值已更改为带有 'CamelCache' 的前缀，并使用混合的大小写。这样可以更轻松地识别和保持与其他标头分开。CacheConstants 变量名称保持不变，只有它们的值已更改。另外，这些标头现在在执行缓存操作后从交换中删除。
| 标头 | 描述 |
|---|---|
|
| 要在缓存上执行的操作。有效选项有 * CamelCacheGet * CamelCacheCheck * CamelCacheAdd * CamelCacheUpdate * CamelCacheDelete * CamelCacheDeleteAll |
|
| 用于将消息存储在缓存中的缓存密钥。如果 CamelCacheOperation 为 CamelCacheDeleteAll，则缓存键是可选的 |
CamelCacheAdd 和 CamelCacheUpdate 操作支持额外的标头：
| 标头 | 类型 | 描述 |
|---|---|---|
|
|
| Camel 2.11： 生存时间（以秒为单位）。 |
|
|
| Camel 2.11： 空闲时间（以秒为单位）。 |
|
|
| Camel 2.11： 内容是否合理。 |
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