Question

我在nodejs中执行http请求，但是该请求永无止境，并继续执行以下代码。它只打印出“响应结束”，而不打印出“请求结束”。为什么会这样呢？

const post_data = JSON.stringify({
    'username': username,
    'org': orgName,
    'peers': peers,
    'channelName': channelName,
    'chaincodeName': chaincodeName,
    'fcn': fcn,
    'args': args
});

var post_options = {
    host: 'localhost',
    port: '3000',
    path: '/cc/write',
    method: 'POST',
    headers: {
         "content-type": "application/json",
         "Content-Length": Buffer.byteLength(post_data)
    }
};

var post_req = http.request(post_options, function (res) {
    console.log("connected");
    res.on('data', function (chunk) {
        console.log('Response: ' + chunk);
        ccResponse = chunk;
    });
    res.on('end', function () {
        console.log('response end')
    });
});

// post the data
post_req.write(post_data);
post_req.on('end', function () {
    console.log('request end');
});
post_req.on('finish', function () {
    console.log('request end');
});
post_req.end();

console.log("Random thing");

Answer 1

最后一行console.log("Random thing");上方有一个额外的括号除去该括号后，代码生成了以下日志：

Random thing
request end
connected
Response: {"error":"Not Found"}
response end

您可以看到日志中有“请求结束”。它与节点v11.13.0一起运行。

如果没有帮助，请通知我。

我使用的实际代码：

const http = require('http');

const post_data = JSON.stringify({
    'username': 'username',
    'org': 'orgName',
    'peers': 'peers',
    'channelName': 'channelName',
    'chaincodeName': 'chaincodeName',
    'fcn': 'fcn',
    'args': 'args'
});

var post_options = {
    host: 'localhost',
    port: '3000',
    path: '/cc/write',
    method: 'POST',
    headers: {
         "content-type": "application/json",
         "Content-Length": Buffer.byteLength(post_data)
    }
};

var post_req = http.request(post_options, function (res) {
    console.log("connected");
    res.on('data', function (chunk) {
        console.log('Response: ' + chunk);
        ccResponse = chunk;
    });
    res.on('end', function () {
        console.log('response end')
    });
});

// post the data
post_req.write(post_data);
post_req.on('end', function () {
    console.log('request end');
});
post_req.on('finish', function () {
    console.log('request end');
});
post_req.end();

console.log("Random thing");

为什么Http请求永无止境

1 个答案: