nodejs json파일 MongDB에 입력

 

참고 자료 : https://javafa.gitbooks.io/nodejs_server_basic/content/chapter12.html

var fs = require('fs'); var initialData = fs.readFileSync('123.json'); var TRList = JSON.parse(initialData); var mongoose = require('mongoose'); mongoose.connect('mongodb://test:12345@localhost:31337/test', {         useNewUrlParser: true } ); var db=mongoose.connection; var PostSchema = new mongoose.Schema( {         blockHash: String,             to: String,             value: String } ) var Post = mongoose.model('Post', PostSchema); for (var i=0; i<TRList.length; i++) {         var TR=TRList[i];         var post_1 = new Post( {                 blockHash: TR.blockHash, to: TR.to, value: TR.value         });         post_1.save(function (err) {                 if (err) return handleError(err);         }) }; Post.find(function (err, docs){         console.log(docs); }); console.log("complete");

출력이 다 된 후 멈춤 현상 발생

mongoose는 무조건 스키마 설계 해서 입력해야 됨

MongDB입력된 상태 확인

 

 

 

 

 

소스코드 상에는 출력을 다 하고 Compete 떠야 되는데

이것도 먼가 동기 비동기 문제가 아닌가 생각도 든다.

 

 

root@tkpark-VirtualBox:~/node# nodejs ex3.js complete [ { _id: 5c072a025fce5b0d761520e4,     blockHash: '0xe4c19d128dc6378021032b0d99caf7f4a4b2fb9842efe256b9b01110c51e5425',     to: '0x7a0e3ab3c9626018850c06a099981f0b1f183d95',     value: '100000000000000000',     __v: 0 },   { _id: 5c072a025fce5b0d761520e5,     blockHash: '0xcc31d4e69d108b9eb2ba289e9c2a1160ea36bb911148e5273fcac146664dd933',     to: '0x7a0e3ab3c9626018850c06a099981f0b1f183d95',     value: '100000000000000000',     __v: 0 },   { _id: 5c072a025fce5b0d761520e6,     blockHash: '0x5de67426b406ac4b499f004fc6cbf44761c5ecd09713cc67617551d5f5834fb4',     to: '0x7a0e3ab3c9626018850c06a099981f0b1f183d95',     value: '300000000000000000',     __v: 0 },   { _id: 5c072a025fce5b0d761520e7,     blockHash: '0x76f3a085892c2f8f77f9c336b1662b3cdf4c5f36b6ec283a91a6cc5456d401f8',     to: '0x7a0e3ab3c9626018850c06a099981f0b1f183d95',     value: '2000000000000000000',     __v: 0 },   { _id: 5c072a96e83eec0d91432933,     blockHash: '0xe4c19d128dc6378021032b0d99caf7f4a4b2fb9842efe256b9b01110c51e5425',     to: '0x7a0e3ab3c9626018850c06a099981f0b1f183d95',     value: '100000000000000000',     __v: 0 },   { _id: 5c072a96e83eec0d91432934,     blockHash: '0xcc31d4e69d108b9eb2ba289e9c2a1160ea36bb911148e5273fcac146664dd933',     to: '0x7a0e3ab3c9626018850c06a099981f0b1f183d95',     value: '100000000000000000',     __v: 0 },   { _id: 5c072a96e83eec0d91432935,     blockHash: '0x5de67426b406ac4b499f004fc6cbf44761c5ecd09713cc67617551d5f5834fb4',     to: '0x7a0e3ab3c9626018850c06a099981f0b1f183d95',     value: '300000000000000000',     __v: 0 },   { _id: 5c072a96e83eec0d91432936,     blockHash: '0x76f3a085892c2f8f77f9c336b1662b3cdf4c5f36b6ec283a91a6cc5456d401f8',     to: '0x7a0e3ab3c9626018850c06a099981f0b1f183d95',     value: '2000000000000000000',     __v: 0 },   { _id: 5c072a9ec3495f0d9f59d16b,     blockHash: '0xe4c19d128dc6378021032b0d99caf7f4a4b2fb9842efe256b9b01110c51e5425',     to: '0x7a0e3ab3c9626018850c06a099981f0b1f183d95',     value: '100000000000000000',     __v: 0 },   { _id: 5c072a9ec3495f0d9f59d16c,     blockHash: '0xcc31d4e69d108b9eb2ba289e9c2a1160ea36bb911148e5273fcac146664dd933',     to: '0x7a0e3ab3c9626018850c06a099981f0b1f183d95',     value: '100000000000000000',     __v: 0 },   { _id: 5c072a9ec3495f0d9f59d16d,     blockHash: '0x5de67426b406ac4b499f004fc6cbf44761c5ecd09713cc67617551d5f5834fb4',     to: '0x7a0e3ab3c9626018850c06a099981f0b1f183d95',     value: '300000000000000000',     __v: 0 },   { _id: 5c072a9ec3495f0d9f59d16e,     blockHash: '0x76f3a085892c2f8f77f9c336b1662b3cdf4c5f36b6ec283a91a6cc5456d401f8',     to: '0x7a0e3ab3c9626018850c06a099981f0b1f183d95',     value: '2000000000000000000',     __v: 0 },   { _id: 5c072aa698a2420dad976f44,     blockHash: '0xe4c19d128dc6378021032b0d99caf7f4a4b2fb9842efe256b9b01110c51e5425',     to: '0x7a0e3ab3c9626018850c06a099981f0b1f183d95',     value: '100000000000000000',     __v: 0 },   { _id: 5c072aa698a2420dad976f45,     blockHash: '0xcc31d4e69d108b9eb2ba289e9c2a1160ea36bb911148e5273fcac146664dd933',     to: '0x7a0e3ab3c9626018850c06a099981f0b1f183d95',     value: '100000000000000000',     __v: 0 },   { _id: 5c072aa698a2420dad976f46,     blockHash: '0x5de67426b406ac4b499f004fc6cbf44761c5ecd09713cc67617551d5f5834fb4',     to: '0x7a0e3ab3c9626018850c06a099981f0b1f183d95',     value: '300000000000000000',     __v: 0 },   { _id: 5c072aa698a2420dad976f47,     blockHash: '0x76f3a085892c2f8f77f9c336b1662b3cdf4c5f36b6ec283a91a6cc5456d401f8',     to: '0x7a0e3ab3c9626018850c06a099981f0b1f183d95',     value: '2000000000000000000',     __v: 0 } ]