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+---
+title: extension.sendRequest()
+slug: Mozilla/Add-ons/WebExtensions/API/extension/sendRequest
+l10n:
+  sourceCommit: 5f090dea2cacee4ff4f654241f017a9f6649124e
+---
+
+{{AddonSidebar}}{{Deprecated_Header}}
+
+> [!WARNING]
+> 该方法已被弃用。请改用 {{WebExtAPIRef("runtime.sendMessage")}}。
+
+向插件中其他的监听器发送请求。该方法类似于 {{WebExtAPIRef('runtime.connect')}}，但它只能发送可选地带有响应的单一请求。发送请求后在扩展的每个页面中，{{WebExtAPIRef('extension.onRequest')}} 事件都会触发。
+
+## 语法
+
+```js-nolint
+chrome.extension.sendRequest(
+  extensionId,             // 可选的字符串
+  request,                 // 任意类型
+  (response) => {/* … */}  // 可选的函数
+)
+```
+
+该 API 的返回 promise 的版本同样以 `browser.extension.sendRequest()` 的形式可用。
+
+### 参数
+
+- `extensionId` {{optional_inline}}
+  - : `string`，你所希望连接到的扩展的 ID。如果省略，则默认为你自己的扩展。
+- `request`
+  - : `any`。
+- `responseCallback` {{optional_inline}}
+
+  - : `function`，将传递如下参数的函数：
+
+    - `response`
+      - : `any`，由请求处理器发送的 JSON 响应对象。如果在连接到插件时发生错误，回调函数将不带参数地被调用，且 {{WebExtAPIRef('runtime.lastError')}} 将被设置为错误消息。
+
+## 浏览器兼容性
+
+{{Compat}}
+
+{{WebExtExamples}}
+
+> [!NOTE]
+> 此 API 基于 Chromium 的 [`chrome.extension`](https://developer.chrome.google.cn/docs/extensions/reference/api/extension/#method-sendRequest) API。该文档衍生自 Chromium 代码中的 [`extension.json`](https://chromium.googlesource.com/chromium/src/+/master/chrome/common/extensions/api/extension.json)。
+
+<!--
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