2016-08-11 246 views
0

您好我有一個問題,從對象獲取值,如果工作正常之前,使用data.driver.id之前處理記憶包在node.js和它讓我像它1010但現在它給我不確定從對象獲取對象的鍵值

這是我所有的細節

var data = { event: 2, 
 
    driver: '{"phonenumber":"123123","client":{"index":"103.104.34.250:59555","sock":{"_connecting":false,"_handle":{"fd":21,"writeQueueSize":0,"owner":"[Circular]","reading":true},"_readableState":{"highWaterMark":16384,"buffer":[],"length":0,"pipes":null,"pipesCount":0,"flowing":false,"ended":false,"endEmitted":false,"reading":true,"calledRead":true,"sync":false,"needReadable":true,"emittedReadable":false,"readableListening":false,"objectMode":false,"defaultEncoding":"utf8","ranOut":false,"awaitDrain":0,"readingMore":false,"decoder":null,"encoding":null},"readable":true,"domain":null,"_events":{},"_maxListeners":10,"_writableState":{"highWaterMark":16384,"objectMode":false,"needDrain":false,"ending":false,"ended":false,"finished":false,"decodeStrings":false,"defaultEncoding":"utf8","length":0,"writing":false,"sync":false,"bufferProcessing":false,"writecb":null,"writelen":0,"buffer":[],"errorEmitted":false},"writable":true,"allowHalfOpen":false,"onend":null,"destroyed":false,"bytesRead":24,"_bytesDispatched":2,"_pendingData":null,"_pendingEncoding":"","server":{"domain":null,"_events":{},"_maxListeners":10,"_connections":1,"connections":1,"_handle":{"fd":17,"writeQueueSize":0,"owner":"[Circular]"},"_usingSlaves":false,"_slaves":[],"allowHalfOpen":false,"_connectionKey":"4:0.0.0.0:25001"},"_peername":{"address":"103.240.34.250","family":"IPv4","port":59555},"_consuming":true},"_actualLength":0,"_msg":[2,114,116,101,115,116,64,103,109,97,105,108,46,99,111,109,124,114,97,118,105,110,97],"_written":0,"driver":"[Circular]"},"online":true,"onDuty":true,"latitude":0,"longitude":0,"vehicle":"Sedan","id":1056,"fullname":"test01 test01","pendingRides":{},"ride":null,"rpm":"0","licensePlate":"dri123","logintime":1470925503}' } 
 

 
console.log(data.driver.id);

我將自己的代碼,所以我想與像ID,全名,logintime,緯度,經度驅動程序的所有屬性對象所以請hele m e出現此錯誤

+2

data.driver是一個字符串。 – Redu

+1

...並且您應該在讀取屬性之前解析JSON字符串。 – undefined

回答

1

您需要先解析JSON。試試這樣:

var data = { event: 2, 
 
    driver: '{"phonenumber":"123123","client":{"index":"103.104.34.250:59555","sock":{"_connecting":false,"_handle":{"fd":21,"writeQueueSize":0,"owner":"[Circular]","reading":true},"_readableState":{"highWaterMark":16384,"buffer":[],"length":0,"pipes":null,"pipesCount":0,"flowing":false,"ended":false,"endEmitted":false,"reading":true,"calledRead":true,"sync":false,"needReadable":true,"emittedReadable":false,"readableListening":false,"objectMode":false,"defaultEncoding":"utf8","ranOut":false,"awaitDrain":0,"readingMore":false,"decoder":null,"encoding":null},"readable":true,"domain":null,"_events":{},"_maxListeners":10,"_writableState":{"highWaterMark":16384,"objectMode":false,"needDrain":false,"ending":false,"ended":false,"finished":false,"decodeStrings":false,"defaultEncoding":"utf8","length":0,"writing":false,"sync":false,"bufferProcessing":false,"writecb":null,"writelen":0,"buffer":[],"errorEmitted":false},"writable":true,"allowHalfOpen":false,"onend":null,"destroyed":false,"bytesRead":24,"_bytesDispatched":2,"_pendingData":null,"_pendingEncoding":"","server":{"domain":null,"_events":{},"_maxListeners":10,"_connections":1,"connections":1,"_handle":{"fd":17,"writeQueueSize":0,"owner":"[Circular]"},"_usingSlaves":false,"_slaves":[],"allowHalfOpen":false,"_connectionKey":"4:0.0.0.0:25001"},"_peername":{"address":"103.240.34.250","family":"IPv4","port":59555},"_consuming":true},"_actualLength":0,"_msg":[2,114,116,101,115,116,64,103,109,97,105,108,46,99,111,109,124,114,97,118,105,110,97],"_written":0,"driver":"[Circular]"},"online":true,"onDuty":true,"latitude":0,"longitude":0,"vehicle":"Sedan","id":1056,"fullname":"test01 test01","pendingRides":{},"ride":null,"rpm":"0","licensePlate":"dri123","logintime":1470925503}' } 
 

 
console.log(JSON.parse(data.driver).id);

+0

感謝好友我很好,我有驅動器ID –

1

有人建議分析將其轉換爲對象的字符串。但它已經是一個對象。只要刪除單引號。

var data = { event: 2, 
 
    driver: {"phonenumber":"123123","client":{"index":"103.104.34.250:59555","sock":{"_connecting":false,"_handle":{"fd":21,"writeQueueSize":0,"owner":"[Circular]","reading":true},"_readableState":{"highWaterMark":16384,"buffer":[],"length":0,"pipes":null,"pipesCount":0,"flowing":false,"ended":false,"endEmitted":false,"reading":true,"calledRead":true,"sync":false,"needReadable":true,"emittedReadable":false,"readableListening":false,"objectMode":false,"defaultEncoding":"utf8","ranOut":false,"awaitDrain":0,"readingMore":false,"decoder":null,"encoding":null},"readable":true,"domain":null,"_events":{},"_maxListeners":10,"_writableState":{"highWaterMark":16384,"objectMode":false,"needDrain":false,"ending":false,"ended":false,"finished":false,"decodeStrings":false,"defaultEncoding":"utf8","length":0,"writing":false,"sync":false,"bufferProcessing":false,"writecb":null,"writelen":0,"buffer":[],"errorEmitted":false},"writable":true,"allowHalfOpen":false,"onend":null,"destroyed":false,"bytesRead":24,"_bytesDispatched":2,"_pendingData":null,"_pendingEncoding":"","server":{"domain":null,"_events":{},"_maxListeners":10,"_connections":1,"connections":1,"_handle":{"fd":17,"writeQueueSize":0,"owner":"[Circular]"},"_usingSlaves":false,"_slaves":[],"allowHalfOpen":false,"_connectionKey":"4:0.0.0.0:25001"},"_peername":{"address":"103.240.34.250","family":"IPv4","port":59555},"_consuming":true},"_actualLength":0,"_msg":[2,114,116,101,115,116,64,103,109,97,105,108,46,99,111,109,124,114,97,118,105,110,97],"_written":0,"driver":"[Circular]"},"online":true,"onDuty":true,"latitude":0,"longitude":0,"vehicle":"Sedan","id":1056,"fullname":"test01 test01","pendingRides":{},"ride":null,"rpm":"0","licensePlate":"dri123","logintime":1470925503} } 
 

 
console.log(data.driver.id);

+0

我如何刪除使用代碼...如果你有任何代碼,所以請寫在這裏 –

+0

@trusharwidetech你不能。如果你不能控制原始的Javascript,只需解析它。 – Nate