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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                [TOC] > [參考](http://blog.haoji.me/chrome-plugin-develop.html#chang-lian-jie-he-duan-lian-jie) ## 長連接和短連接 Chrome插件中有2種通信方式, - 一個是短連接(chrome.tabs.sendMessage和chrome.runtime.sendMessage) - 一個是長連接(chrome.tabs.connect和chrome.runtime.connect) 而長連接類似WebSocket會一直建立連接,雙方可以隨時互發消息 ## 示例 ### 長連接 popup.js: ``` getCurrentTabId((tabId) => { var port = chrome.tabs.connect(tabId, {name: 'test-connect'}); port.postMessage({question: '你是誰啊?'}); port.onMessage.addListener(function(msg) { alert('收到消息:'+msg.answer); if(msg.answer && msg.answer.startsWith('我是')) { port.postMessage({question: '哦,原來是你啊!'}); } }); }); ``` content-script.js: ``` // 監聽長連接 chrome.runtime.onConnect.addListener(function(port) { console.log(port); if(port.name == 'test-connect') { port.onMessage.addListener(function(msg) { console.log('收到長連接消息:', msg); if(msg.question == '你是誰啊?') port.postMessage({answer: '我是你爸!'}); }); } }); ```
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