红帽全球峰会5.6. HTTP 会话 ID 更改
request.getSession（）.getId（） 调用返回的字符串，以获取分配给 HTTP 会话的唯一标识符，在 JBoss EAP 6.4 和 JBoss EAP 7 之间已更改。
JBoss EAP 6.4 返回 session-id.instance-id 格式的会话 ID 和实例 ID。
JBoss EAP 7 仅返回会话 ID。
此更改可能会产生从 JBoss EAP 6 升级到 JBoss EAP 7 的某些无路由 Cookie 问题。如果您的应用基于此方法调用的返回值重新创建 JSESSIONID Cookie，您可能需要更新应用代码以提供所需的行为。
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