http.ClientRequest.setTimeout()是HTTP模塊內的ClientRequest類的內置應用程序編程接口,用於為客戶端請求設置請求超時。
用法:
request.setTimeout(timeout[, callback])
參數:此方法將超時值作為參數(以毫秒為單位),第二個參數是在給定超時值之後執行的回調函數。
返回值:此方法隻返回回調函數以進行進一步操作。
範例1:Filename-index.js
Javascript
// Node.js program to demonstrate the
// request.setTimeout() method
// Importing http module
const http = require('http');
// Create an HTTP server
const server = http.createServer((req, res) => {
res.writeHead(200, { 'Content-Type':'text/plain' });
res.end('okay');
});
// Now that server is running
server.listen(3000, '127.0.0.1', () => {
// Make a request
const options = {
port:3000,
host:'127.0.0.1',
headers:{
'Connection':'Upgrade',
'Upgrade':'websocket'
}
};
// Getting clinet request
const req = http.request(options);
// Setting the timeout for the client reauest
// by using host method
req.setTimeout(3000, () => {
console.log("timeout")
process.exit(0)
})
});
使用以下命令運行index.js文件:
node index.js
輸出:
timeout
示例2:Filename-index.js
Javascript
// Node.js program to demonstrate the
// request.setTimeout() method
// Importing http module
const http = require('http');
// Create an HTTP server
http.createServer((req, res) => { }).listen(3000, '127.0.0.1', () => {
// Getting clinet request
const req = http.request({
port:3000,
host:'127.0.0.1',
});
// Setting the timeout for the client reauest
// by using host method
req.setTimeout(5000, () => {
console.log("timeout")
process.exit(0)
})
});
使用以下命令運行index.js文件:
node index.js
輸出:
timeout
參考:https://nodejs.org/dist/latest-v12.x/docs/api/http.html#http_request_settimeout_timeout_callback
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注:本文由純淨天空篩選整理自RohitPrasad3大神的英文原創作品 Node.js http.ClientRequest.setTimeout() Method。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。