yyqdbngt opened a new pull request, #4084:
URL: https://github.com/apache/rocketmq-dashboard/pull/4084
## Summary
Add a "复制属性 JSON" (copy properties as JSON) action to the message detail
modal on the Message page. It serializes the selected message's `properties`
object with `JSON.stringify(..., null, 2)` and writes it to the clipboard via
`navigator.clipboard.writeText`, with a `textarea` + `document.execCommand`
fallback for non-secure contexts. The button is disabled (with a "该消息无属性"
hint) when the message has no properties.
## Why
Operators inspecting a message currently have no way to grab its properties
as a machine-readable payload; the message body is copyable but the
key/value properties are not rendered on the detail view. This makes pasting
properties into a ticket or script one click instead of retyping them.
## Testing
- `cd web && ./node_modules/.bin/tsc -b tsconfig.app.json` — passes (exit 0)
- `./node_modules/.bin/vitest run
src/pages/instance/__tests__/MessagePage.test.tsx`
(Node 20 build server) — **12/12 passed**, including two new cases:
- clicking the action writes `{"KEYS":"abc","TAGS":"vip"}` to the
clipboard;
- the action is disabled and shows the no-properties hint for messages with
an empty `properties` object.
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