NodeJs微服務框架待填坑記錄【01】

原創 简烦 2019-06-13 11:26

Seneca ：NodeJS 微服務框架中 async.whilst 無效，不進入循環

  1. 這是運行在Seneca微服務框架中的
var datalist = [{number:10},{number:20},{number:30},{number:40},{number:50}];
	var count = 0;
    
    console.log('0000000000##datalist.length##'+datalist.length)
    console.log('0000000000##count##'+count);
	var test = function () {
        console.log('0000000000##count<datalist.length##'+(count<datalist.length));
		return count<datalist.length;
	};
 
	var fn = function(callback){
		console.log('xunhuantizhong-==='+datalist[count].number);
		setTimeout(function () {
            datalist[count].number += 1;
			count++;
			callback();
		},1000)
	};
	
	async.whilst(test,fn,function(err){
		if(err){
			console.log(err);
		}
        console.log('whilst結束');
        callback(httpReturn.success(datalist))
	});

以下日誌輸出，可以看出壓根沒進入循環體中，沒有打印循環體中的console.log

2019-06-12 14:21:35: 0000000000##datalist.length##5
2019-06-12 14:21:35: 0000000000##count##0
2019-06-12 14:21:35: 0000000000##count<datalist.length##true
2019-06-12 14:21:40: {"notice":"seneca: Action role:center_proj failed: Client request timeout.","code":"act_execute","err":{"isBoom":true,"isServer":true,"output":{"statusCode":504,"payload":{"statusCode":504,"error":"Gateway Time-out","message":"Client request timeout"},"headers":{}},"eraro":true,"orig":{"isBoom":true,"isServer":true,"output":{"statusCode":504,"payload":{"statusCode":504,"error":"Gateway Time-out","message":"Client request timeout"},"headers":{}}},"code":"act_execute","seneca":true,"package":"seneca","msg":"seneca: Action role:center_proj failed: Client request timeout.","details":{"message":"Client request timeout","pattern":"role:center_proj","instance":"Seneca/aghe6os61t2f/1560320181638/11088/3.11.0/-","orig$":{"isBoom":true,"isServer":true,"output":{"statusCode":504,"payload":{"statusCode":504,"error":"Gateway Time-out","message":"Client request timeout"},"headers":{}}},"message$":"Client request timeout","plugin":{}},"callpoint":"at module.exports.internals.Utils.internals.Utils.handle_response (D:\\workspaces\\qxIotServerCenter\\qxiot2\\node_modules\\seneca-transport\\lib\\transport-utils.js:76:11)"},"actid":"qr19w8gll3ye/76won5y7qhv2","msg":{"body":{"device_id":"","proj_id":"","proj_num":"","proj_type_code":"","proj_name":"","province":"","city":"","sort":"","pageSize":"","pageNum":""},"files":{},"_username":"admin","_role":"1","_table":"iotuser","role":"center_proj","cmd":"project_list/query"},"meta":{"start":1560320495091,"end":1560320500648,"pattern":"role:center_proj","action":"transport_client_35","mi":"qr19w8gll3ye","tx":"76won5y7qhv2","id":"qr19w8gll3ye/76won5y7qhv2","instance":"aghe6os61t2f/1560320181638/11088/3.11.0/-","tag":"-","seneca":"3.11.0","version":"0.1.0","timeout":22222,"custom":{},"plugin":{"name":"client$","tag":"-","fullname":"client$"},"parents":[],"remote":false,"sync":true,"trace":[{"desc":[null,"qr19w8gll3ye/76won5y7qhv2",null,null,null,null,null,null,null],"trace":[]}],"sub":null,"data":null,"err":null,"err_trace":null,"error":true,"empty":null},"actdef":{"plugin_name":"client$","plugin_tag":"-","plugin_fullname":"client$","raw":{"role":"center_proj","client$":true,"strict$":{"add":true}},"plugin":{"name":"client$","tag":"-","fullname":"client$"},"sub":false,"client":true,"fixed":{},"custom":{},"id":"transport_client_35","name":"transport_client","pattern":"role:center_proj","msgcanon":{"role":"center_proj"},"priordef":{"plugin_name":"client$","plugin_tag":"-","plugin_fullname":"client$","raw":{"role":"center_proj","client$":true,"strict$":{"add":true}},"plugin":{"name":"client$","tag":"-","fullname":"client$"},"sub":false,"client":true,"fixed":{},"custom":{},"id":"transport_client_10","name":"transport_client","pattern":"role:center_proj","msgcanon":{"role":"center_proj"},"priorpath":"","rules":{}},"priorpath":"transport_client_10;","rules":{}},"client":true,"listen":false,"transport":{},"kind":"act","case":"ERR","duration":5557,"level":"error","plugin_name":"client$","plugin_tag":"-","pattern":"role:center_proj","seneca":"aghe6os61t2f/1560320181638/11088/3.11.0/-","when":1560320500649}
2019-06-12 14:21:40: 0000000000##datalist.length##5
2019-06-12 14:21:40: 0000000000##count##0
2019-06-12 14:21:40: 0000000000##count<datalist.length##true
2019-06-12 14:21:46: {"notice":"seneca: Action role:center_proj failed: Client request timeout.","code":"act_execute","err":{"isBoom":true,"isServer":true,"output":{"statusCode":504,"payload":{"statusCode":504,"error":"Gateway Time-out","message":"Client request timeout"},"headers":{}},"eraro":true,"orig":{"isBoom":true,"isServer":true,"output":{"statusCode":504,"payload":{"statusCode":504,"error":"Gateway Time-out","message":"Client request timeout"},"headers":{}}},"code":"act_execute","seneca":true,"package":"seneca","msg":"seneca: Action role:center_proj failed: Client request timeout.","details":{"message":"Client request timeout","pattern":"role:center_proj","instance":"Seneca/aghe6os61t2f/1560320181638/11088/3.11.0/-","orig$":{"isBoom":true,"isServer":true,"output":{"statusCode":504,"payload":{"statusCode":504,"error":"Gateway Time-out","message":"Client request timeout"},"headers":{}}},"message$":"Client request timeout","plugin":{}},"callpoint":"at module.exports.internals.Utils.internals.Utils.handle_response (D:\\workspaces\\qxIotServerCenter\\qxiot2\\node_modules\\seneca-transport\\lib\\transport-utils.js:76:11)"},"actid":"z3hk642rtsm1/ushoav15jzxu","msg":{"body":{"device_id":"","proj_id":"","proj_num":"","proj_type_code":"","proj_name":"","province":"","city":"","sort":"","pageSize":"","pageNum":""},"files":{},"_username":"admin","_role":"1","_table":"iotuser","role":"center_proj","cmd":"project_list/query"},"meta":{"start":1560320500652,"end":1560320506211,"pattern":"role:center_proj","action":"transport_client_37","mi":"z3hk642rtsm1","tx":"ushoav15jzxu","id":"z3hk642rtsm1/ushoav15jzxu","instance":"aghe6os61t2f/1560320181638/11088/3.11.0/-","tag":"-","seneca":"3.11.0","version":"0.1.0","timeout":22222,"custom":{},"plugin":{"name":"client$","tag":"-","fullname":"client$"},"parents":[],"remote":false,"sync":true,"trace":[{"desc":[null,"z3hk642rtsm1/ushoav15jzxu",null,null,null,null,null,null,null],"trace":[]}],"sub":null,"data":null,"err":null,"err_trace":null,"error":true,"empty":null},"actdef":{"plugin_name":"client$","plugin_tag":"-","plugin_fullname":"client$","raw":{"role":"center_proj","client$":true,"strict$":{"add":true}},"plugin":{"name":"client$","tag":"-","fullname":"client$"},"sub":false,"client":true,"fixed":{},"custom":{},"id":"transport_client_37","name":"transport_client","pattern":"role:center_proj","msgcanon":{"role":"center_proj"},"priordef":{"plugin_name":"client$","plugin_tag":"-","plugin_fullname":"client$","raw":{"role":"center_proj","client$":true,"strict$":{"add":true}},"plugin":{"name":"client$","tag":"-","fullname":"client$"},"sub":false,"client":true,"fixed":{},"custom":{},"id":"transport_client_35","name":"transport_client","pattern":"role:center_proj","msgcanon":{"role":"center_proj"},"priordef":{"plugin_name":"client$","plugin_tag":"-","plugin_fullname":"client$","raw":{"role":"center_proj","client$":true,"strict$":{"add":true}},"plugin":{"name":"client$","tag":"-","fullname":"client$"},"sub":false,"client":true,"fixed":{},"custom":{},"id":"transport_client_10","name":"transport_client","pattern":"role:center_proj","msgcanon":{"role":"center_proj"},"priorpath":"","rules":{}},"priorpath":"transport_client_10;","rules":{}},"priorpath":"transport_client_35;transport_client_10;","rules":{}},"client":true,"listen":false,"transport":{},"kind":"act","case":"ERR","duration":5559,"level":"error","plugin_name":"client$","plugin_tag":"-","pattern":"role:center_proj","seneca":"aghe6os61t2f/1560320181638/11088/3.11.0/-","when":1560320506212}
2019-06-12 14:21:57: {"notice":"seneca: Action cmd:project_list/query,role:center_proj failed: [TIMEOUT].","code":"act_execute","err":{"eraro":true,"orig":{},"code":"act_execute","seneca":true,"package":"seneca","msg":"seneca: Action cmd:project_list/query,role:center_proj failed: [TIMEOUT].","details":{"message":"[TIMEOUT]","pattern":"cmd:project_list/query,role:center_proj","instance":"Seneca/l52rbbl54pxi/1560320486596/11640/3.11.0/-","orig$":{},"message$":"[TIMEOUT]","plugin":{}},"callpoint":"at Object.act_tm [as ontm] (D:\\workspaces\\qxIotServerCenter\\qxiot2\\node_modules\\seneca\\seneca.js:969:52)"},"actid":"qr19w8gll3ye/76won5y7qhv2","msg":{"body":{"device_id":"","proj_id":"","proj_num":"","proj_type_code":"","proj_name":"","province":"","city":"","sort":"","pageSize":"","pageNum":""},"files":{},"_username":"admin","_role":"1","_table":"iotuser","role":"center_proj","cmd":"project_list/query","custom$":{},"transport$":{"track":["aghe6os61t2f/1560320181638/11088/3.11.0/-"],"origin":"aghe6os61t2f/1560320181638/11088/3.11.0/-","time":{"client_sent":"1560320495092"}},"tx$":"76won5y7qhv2"},"meta":{"start":1560320495102,"end":1560320517406,"pattern":"cmd:project_list/query,role:center_proj","action":"_28","mi":"qr19w8gll3ye","tx":"76won5y7qhv2","id":"qr19w8gll3ye/76won5y7qhv2","instance":"l52rbbl54pxi/1560320486596/11640/3.11.0/-","tag":"-","seneca":"3.11.0","version":"0.1.0","timeout":22222,"custom":{},"plugin":{"name":"center_proj","tag":"-","fullname":"center_proj"},"parents":[],"remote":false,"sync":true,"trace":[],"sub":null,"data":null,"err":null,"err_trace":null,"error":true,"empty":null},"actdef":{"plugin_name":"center_proj","plugin_tag":"-","plugin_fullname":"center_proj","raw":{"role":"center_proj","cmd":"project_list/query"},"plugin":{"name":"center_proj","tag":"-","fullname":"center_proj"},"sub":false,"client":false,"fixed":{},"custom":{},"id":"_28","name":"","pattern":"cmd:project_list/query,role:center_proj","msgcanon":{"cmd":"project_list/query","role":"center_proj"},"priorpath":"","rules":{}},"client":false,"listen":true,"transport":{"track":["aghe6os61t2f/1560320181638/11088/3.11.0/-"],"origin":"aghe6os61t2f/1560320181638/11088/3.11.0/-","time":{"client_sent":"1560320495092"}},"kind":"act","case":"ERR","duration":22304,"level":"error","plugin_name":"center_proj","plugin_tag":"-","pattern":"cmd:project_list/query,role:center_proj","seneca":"l52rbbl54pxi/1560320486596/11640/3.11.0/-","when":1560320517410}
2019-06-12 14:22:02: {"notice":"seneca: Action cmd:project_list/query,role:center_proj failed: [TIMEOUT].","code":"act_execute","err":{"eraro":true,"orig":{},"code":"act_execute","seneca":true,"package":"seneca","msg":"seneca: Action cmd:project_list/query,role:center_proj failed: [TIMEOUT].","details":{"message":"[TIMEOUT]","pattern":"cmd:project_list/query,role:center_proj","instance":"Seneca/l52rbbl54pxi/1560320486596/11640/3.11.0/-","orig$":{},"message$":"[TIMEOUT]","plugin":{}},"callpoint":"at Object.act_tm [as ontm] (D:\\workspaces\\qxIotServerCenter\\qxiot2\\node_modules\\seneca\\seneca.js:969:52)"},"actid":"z3hk642rtsm1/ushoav15jzxu","msg":{"body":{"device_id":"","proj_id":"","proj_num":"","proj_type_code":"","proj_name":"","province":"","city":"","sort":"","pageSize":"","pageNum":""},"files":{},"_username":"admin","_role":"1","_table":"iotuser","role":"center_proj","cmd":"project_list/query","custom$":{},"transport$":{"track":["aghe6os61t2f/1560320181638/11088/3.11.0/-"],"origin":"aghe6os61t2f/1560320181638/11088/3.11.0/-","time":{"client_sent":"1560320500654"}},"tx$":"ushoav15jzxu"},"meta":{"start":1560320500655,"end":1560320522882,"pattern":"cmd:project_list/query,role:center_proj","action":"_28","mi":"z3hk642rtsm1","tx":"ushoav15jzxu","id":"z3hk642rtsm1/ushoav15jzxu","instance":"l52rbbl54pxi/1560320486596/11640/3.11.0/-","tag":"-","seneca":"3.11.0","version":"0.1.0","timeout":22222,"custom":{},"plugin":{"name":"center_proj","tag":"-","fullname":"center_proj"},"parents":[],"remote":false,"sync":true,"trace":[],"sub":null,"data":null,"err":null,"err_trace":null,"error":true,"empty":null},"actdef":{"plugin_name":"center_proj","plugin_tag":"-","plugin_fullname":"center_proj","raw":{"role":"center_proj","cmd":"project_list/query"},"plugin":{"name":"center_proj","tag":"-","fullname":"center_proj"},"sub":false,"client":false,"fixed":{},"custom":{},"id":"_28","name":"","pattern":"cmd:project_list/query,role:center_proj","msgcanon":{"cmd":"project_list/query","role":"center_proj"},"priorpath":"","rules":{}},"client":false,"listen":true,"transport":{"track":["aghe6os61t2f/1560320181638/11088/3.11.0/-"],"origin":"aghe6os61t2f/1560320181638/11088/3.11.0/-","time":{"client_sent":"1560320500654"}},"kind":"act","case":"ERR","duration":22227,"level":"error","plugin_name":"center_proj","plugin_tag":"-","pattern":"cmd:project_list/query,role:center_proj","seneca":"l52rbbl54pxi/1560320486596/11640/3.11.0/-","when":1560320522883}
  1. 這是在正常接口下的代碼，不運行在微服務框架下，由於項目需要改成微服務，也就是原先的代碼
console.log("go in ... ... ... ... ");


    var datalist = [{number:10},{number:20},{number:30},{number:40},{number:50}];
	var count = 0;
    
    console.log('0000000000##datalist.length##'+datalist.length)
    console.log('0000000000##count##'+count);
	var test = function () {
        console.log('0000000000##count<datalist.length##'+(count<datalist.length));
		return count<datalist.length;
	};
 
	var fn = function(callback){
		console.log('xunhuantizhong-==='+datalist[count].number);
		setTimeout(function () {
            datalist[count].number += 1;
			count++;
			callback();
		},1000)
	};
	
	async.whilst(test,fn,function(err){
		if(err){
			console.log(err);
		}
        console.log('whilst結束');
        callback(ServiceResponse.res.success(datalist))
	});

以下是輸出和接口調試結果

go in ... ... ... ...
0000000000##datalist.length##5
0000000000##count##0
0000000000##count<datalist.length##true
xunhuantizhong-===10
0000000000##count<datalist.length##true
xunhuantizhong-===20
0000000000##count<datalist.length##true
xunhuantizhong-===30
0000000000##count<datalist.length##true
xunhuantizhong-===40
0000000000##count<datalist.length##true
xunhuantizhong-===50
0000000000##count<datalist.length##false
whilst結束
{
"code": 1,
"msg": "操作成功",
"data":[
{
"number": 11
},
{
"number": 21
},
{
"number": 31
},
{
"number": 41
},
{
"number": 51
}
]
}

總結：一樣的代碼，但是在Seneca構建的微服務下，就不能正常運行。

解決方案：將async.whilst 寫法改成 async.map的寫法，但是具體原因還是未知！希望有知道的大佬能在看到這篇文章之後不吝告知~~

 

最終結論與解決方式：

果然人還是不能輕易放棄標準，經過查詢一番，終於還是找到了於async模塊的文檔，起先一直搜索async官方文檔，但是一直沒找到，後面是找到了GitHub的開源，找到的開發說明文檔。鏈接：

https://caolan.github.io/async/v3/docs.html#whilst

對比async.whilst的寫法，不難看出，循環判斷條件的差異，網上都是直接return的而官方例子是callback的。

 

改成和官方文檔一致的callback就OJBK了。

真的服，看來萬事還是得以官方爲準。

var count = 0;

    var datalist = [{number:10},{number:20},{number:30},{number:40},{number:50}];
	var count = 0;
    
    console.log('0000000000##datalist.length##'+datalist.length)
    console.log('0000000000##count##'+count);
	var test = function (callback) {
        console.log('0000000000##count<datalist.length##'+(count<datalist.length));
        callback(null, count<datalist.length);
	};
 
	var fn = function(callback){
		console.log('xunhuantizhong-==='+datalist[count].number);
		setTimeout(function () {
            datalist[count].number += 1;
			count++;
			callback();
		},1000)
	};
	
	async.whilst(test,fn,function(err){
		if(err){
			console.log(err);
		}
        console.log('whilst結束');
        callback(httpReturn.success(datalist))
	});
2019-06-12 15:30:59: {"kind":"plugin","case":"ready","name":"transport","level":"info","actid":"sfvgalgm6ihe/nq8lg0bkwyzx","plugin_name":"transport","pattern":"name:transport,plugin:define,role:seneca,seq:1,tag:undefined","seneca":"jz2iiugvzqef/1560324658113/4024/3.11.0/-","when":1560324659064}
2019-06-12 15:30:59: {"kind":"plugin","case":"ready","name":"center_proj","level":"info","actid":"stp0j9hw2r3e/vozd6knt4z2f","plugin_name":"center_proj","pattern":"name:center_proj,plugin:define,role:seneca,seq:2,tag:undefined","seneca":"jz2iiugvzqef/1560324658113/4024/3.11.0/-","when":1560324659092}
2019-06-12 15:30:59: {"kind":"notice","notice":"hello seneca jz2iiugvzqef/1560324658113/4024/3.11.0/-","level":"info","seneca":"jz2iiugvzqef/1560324658113/4024/3.11.0/-","when":1560324659124}
2019-06-12 15:31:01: 0000000000##datalist.length##5
2019-06-12 15:31:01: 0000000000##count##0
2019-06-12 15:31:01: 0000000000##count<datalist.length##true
2019-06-12 15:31:01: xunhuantizhong-===10
2019-06-12 15:31:01: 0000000000##count<datalist.length##true
2019-06-12 15:31:01: xunhuantizhong-===20
2019-06-12 15:31:01: 0000000000##count<datalist.length##true
2019-06-12 15:31:01: xunhuantizhong-===30
2019-06-12 15:31:01: 0000000000##count<datalist.length##true
2019-06-12 15:31:01: xunhuantizhong-===40
2019-06-12 15:31:01: 0000000000##count<datalist.length##true
2019-06-12 15:31:01: xunhuantizhong-===50
2019-06-12 15:31:01: 0000000000##count<datalist.length##false
2019-06-12 15:31:01: whilst結束

完畢，CNM.浪費這麼多時間~~

 

 

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參考 https://medium.com/@mahcloud/mac-brew-node-10-upgrade-55d3e910eebb 1. 使用 brew 或者 n 管理 Node.js On Mac $ brew install

worldzhy 2020-07-08 01:44:08

網頁播放rtsp流媒體學習(包含可用rtsp地址)

1.下載FFmpeg:http://ffmpeg.org/download.html 2.下載完直接解壓好，並將bin目錄加入到path環境變量下 解壓放置 將下載的壓縮包解壓獲得 ffmpeg-4.0.2-win64-static 文件

baidu_29555129 2020-07-08 01:07:57

nodemon啓動報錯

1.nodemon不是內部命令也不是外部命令  解決方案：npm install nodemon  -g全局安裝 （注意檢查環境變量的配置） 2.nodemon : 無法加載文件 因爲在此係統上禁止運行腳本  解決方案：管理員身份打開po

baidu_29555129 2020-07-08 01:07:57

NodeJS生成字節碼

NodeJS生成字節碼 相關問題： 1.nodejs源碼保護 2.nodejs源碼加密 3.nodejs提升運行速度 前言 傳統的後端運行環境，如 Java、.NET，其源代碼是經過編譯才部署到服務器上運行的，不存在泄露的風險。而

itas109 2020-07-08 00:25:40

雲函數使用 koa 和 express

使用 serverless-http 插件轉換請求 Koa // index.js 'use strict' const serverless = require('serverless-http') const Koa =

hobtdto 2020-07-07 23:52:24