{"id":9178,"date":"2025-04-01T15:09:06","date_gmt":"2025-04-01T08:09:06","guid":{"rendered":"https:\/\/mb668s.com\/cam-nang-7mb66-xoc-dia\/?p=9178"},"modified":"2025-04-01T15:10:21","modified_gmt":"2025-04-01T08:10:21","slug":"backend-la-gi-tim-hieu-ve-vai-tro-va-cong-nghe-trong-phat-trien-web","status":"publish","type":"post","link":"https:\/\/mb668s.com\/cam-nang-7mb66-xoc-dia\/tu-van-nghe-nghiep\/backend-la-gi-tim-hieu-ve-vai-tro-va-cong-nghe-trong-phat-trien-web","title":{"rendered":"Backend l\u00e0 g\u00ec? T\u00ecm hi\u1ec3u v\u1ec1 vai tr\u00f2 v\u00e0 c\u00f4ng ngh\u1ec7 trong ph\u00e1t tri\u1ec3n web"},"content":{"rendered":"\n

Backend l\u00e0 g\u00ec? \u0110\u00e2y l\u00e0 m\u1ed9t c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p trong l\u0129nh v\u1ef1c c\u00f4ng ngh\u1ec7 th\u00f4ng tin, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed1i v\u1edbi nh\u1eefng ai \u0111ang t\u00ecm hi\u1ec3u v\u1ec1 ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m. Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang ta s\u1ebd c\u00f9ng nhau kh\u00e1m ph\u00e1 s\u00e2u h\u01a1n v\u1ec1 backend, vai tr\u00f2 c\u1ee7a n\u00f3 trong \u1ee9ng d\u1ee5ng, c\u0169ng nh\u01b0 c\u00e1c c\u00f4ng ngh\u1ec7 li\u00ean quan.<\/p>\n\n\n

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\"Backend<\/figure>\n<\/div>\n\n\n

Gi\u1edbi thi\u1ec7u kh\u00e1i ni\u1ec7m Backend<\/strong><\/h2>\n\n\n\n

Khi b\u1eaft \u0111\u1ea7u t\u00ecm hi\u1ec3u v\u1ec1 l\u1eadp tr\u00ecnh web hay ph\u00e1t tri\u1ec3n \u1ee9ng d\u1ee5ng, ch\u00fang ta th\u01b0\u1eddng nghe \u0111\u1ebfn c\u00e1c thu\u1eadt ng\u1eef nh\u01b0 frontend v\u00e0 backend. Tuy nhi\u00ean, kh\u00f4ng ph\u1ea3i ai c\u0169ng hi\u1ec3u r\u00f5 backend l\u00e0 g\u00ec<\/strong> v\u00e0 vai tr\u00f2 c\u1ee7a n\u00f3 trong m\u1ed9t h\u1ec7 th\u1ed1ng \u1ee9ng d\u1ee5ng.<\/p>\n\n\n\n

Backend th\u01b0\u1eddng \u0111\u01b0\u1ee3c xem l\u00e0 ph\u1ea7n “\u1ea9n” c\u1ee7a \u1ee9ng d\u1ee5ng, ch\u1ecbu tr\u00e1ch nhi\u1ec7m x\u1eed l\u00fd d\u1eef li\u1ec7u v\u00e0 t\u01b0\u01a1ng t\u00e1c v\u1edbi ng\u01b0\u1eddi d\u00f9ng qua frontend. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng th\u1ec3 nh\u00ecn th\u1ea5y ho\u1eb7c t\u01b0\u01a1ng t\u00e1c tr\u1ef1c ti\u1ebfp v\u1edbi backend, nh\u01b0ng n\u00f3 l\u1ea1i \u0111\u00f3ng vai tr\u00f2 quy\u1ebft \u0111\u1ecbnh \u0111\u1ebfn hi\u1ec7u su\u1ea5t v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng c\u1ee7a \u1ee9ng d\u1ee5ng.<\/p>\n\n\n\n

\u0110\u1ecbnh ngh\u0129a Backend \u0111\u01a1n gi\u1ea3n<\/strong><\/h3>\n\n\n\n
\n

Backend c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n l\u00e0 ph\u1ea7n m\u1ec1m n\u1eb1m \u1edf ph\u00eda sau c\u1ee7a m\u1ed9t \u1ee9ng d\u1ee5ng. N\u00f3 bao g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c ho\u1ea1t \u0111\u1ed9ng m\u00e0 ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng th\u1ec3 nh\u00ecn th\u1ea5y nh\u01b0ng v\u1eabn \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn tr\u1ea3i nghi\u1ec7m c\u1ee7a h\u1ecd. M\u1ed9t h\u1ec7 th\u1ed1ng backend th\u01b0\u1eddng bao g\u1ed3m server, database v\u00e0 giao th\u1ee9c API (Application Programming Interface).<\/p>\n<\/blockquote>\n\n\n\n

Backend gi\u00fap qu\u1ea3n l\u00fd d\u1eef li\u1ec7u v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p to\u00e1n c\u1ea7n thi\u1ebft \u0111\u1ec3 cung c\u1ea5p th\u00f4ng tin cho frontend. N\u1ebfu kh\u00f4ng c\u00f3 backend, frontend ch\u1ec9 l\u00e0 m\u1ed9t giao di\u1ec7n t\u0129nh kh\u00f4ng th\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi ng\u01b0\u1eddi d\u00f9ng.<\/p>\n\n\n\n

S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa Frontend v\u00e0 Backend<\/strong><\/h3>\n\n\n\n

\u0110\u1ec3 d\u1ec5 d\u00e0ng h\u00ecnh dung, ch\u00fang ta c\u00f3 th\u1ec3 so s\u00e1nh frontend v\u00e0 backend nh\u01b0 hai ph\u1ea7n c\u1ee7a m\u1ed9t chi\u1ebfc m\u00e1y t\u00ednh. Frontend gi\u1ed1ng nh\u01b0 m\u00e0n h\u00ecnh m\u00e1y t\u00ednh, n\u01a1i ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y v\u00e0 t\u01b0\u01a1ng t\u00e1c v\u1edbi th\u00f4ng tin. Ng\u01b0\u1ee3c l\u1ea1i, backend gi\u1ed1ng nh\u01b0 b\u1ed9 x\u1eed l\u00fd v\u00e0 \u1ed5 c\u1ee9ng, n\u01a1i di\u1ec5n ra m\u1ecdi ho\u1ea1t \u0111\u1ed9ng th\u1ef1c s\u1ef1.<\/p>\n\n\n\n

Frontend ch\u1ee7 y\u1ebfu t\u1eadp trung v\u00e0o vi\u1ec7c thi\u1ebft k\u1ebf giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng v\u00e0 tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng. Trong khi \u0111\u00f3, backend t\u1eadp trung v\u00e0o vi\u1ec7c x\u1eed l\u00fd, l\u01b0u tr\u1eef v\u00e0 b\u1ea3o m\u1eadt d\u1eef li\u1ec7u. S\u1ef1 c\u1ed9ng t\u00e1c gi\u1eefa frontend v\u00e0 backend l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 t\u1ea1o ra m\u1ed9t \u1ee9ng d\u1ee5ng ho\u00e0n ch\u1ec9nh v\u00e0 hi\u1ec7u qu\u1ea3.<\/p>\n\n\n\n

Vai tr\u00f2 quan tr\u1ecdng c\u1ee7a Backend trong h\u1ec7 th\u1ed1ng \u1ee9ng d\u1ee5ng<\/strong><\/h3>\n\n\n\n

Backend \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c duy tr\u00ec ho\u1ea1t \u0111\u1ed9ng c\u1ee7a \u1ee9ng d\u1ee5ng. Kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 x\u1eed l\u00fd d\u1eef li\u1ec7u, backend c\u00f2n ph\u1ea3i \u0111\u1ea3m b\u1ea3o r\u1eb1ng th\u00f4ng tin \u0111\u01b0\u1ee3c truy\u1ec1n t\u1ea3i m\u1ed9t c\u00e1ch an to\u00e0n v\u00e0 nhanh ch\u00f3ng.<\/p>\n\n\n\n

Ngo\u00e0i ra, backend c\u0169ng c\u1ea7n \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a \u0111\u1ec3 c\u00f3 th\u1ec3 ph\u1ee5c v\u1ee5 h\u00e0ng tri\u1ec7u ng\u01b0\u1eddi d\u00f9ng c\u00f9ng m\u1ed9t l\u00fac m\u00e0 kh\u00f4ng g\u1eb7p ph\u1ea3i t\u00ecnh tr\u1ea1ng gi\u00e1n \u0111o\u1ea1n. Ch\u00ednh v\u00ec v\u1eady, vi\u1ec7c ph\u00e1t tri\u1ec3n backend \u0111\u00f2i h\u1ecfi ki\u1ebfn th\u1ee9c s\u00e2u s\u1eafc v\u1ec1 c\u00e1c c\u00f4ng ngh\u1ec7, ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh v\u00e0 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng m\u1ea1ng.<\/p>\n\n\n\n

Th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng Backend<\/strong><\/h2>\n\n\n\n

M\u1ed9t h\u1ec7 th\u1ed1ng backend c\u01a1 b\u1ea3n bao g\u1ed3m ba th\u00e0nh ph\u1ea7n ch\u00ednh: server, database v\u00e0 API. M\u1ed7i th\u00e0nh ph\u1ea7n \u0111\u1ec1u gi\u1eef vai tr\u00f2 ri\u00eang bi\u1ec7t nh\u01b0ng l\u1ea1i h\u1ed7 tr\u1ee3 l\u1eabn nhau \u0111\u1ec3 t\u1ea1o n\u00ean m\u1ed9t h\u1ec7 th\u1ed1ng ho\u00e0n ch\u1ec9nh.<\/p>\n\n\n\n

Server: Tr\u00e1i tim c\u1ee7a h\u1ec7 th\u1ed1ng<\/strong><\/h3>\n\n\n\n

Server l\u00e0 ph\u1ea7n c\u1ee9ng ho\u1eb7c ph\u1ea7n m\u1ec1m cung c\u1ea5p d\u1ecbch v\u1ee5 cho c\u00e1c m\u00e1y t\u00ednh kh\u00e1c trong m\u1ea1ng. N\u00f3 l\u00e0 n\u01a1i ch\u1ee9a m\u00e3 ngu\u1ed3n c\u1ee7a \u1ee9ng d\u1ee5ng backend v\u00e0 ch\u1ecbu tr\u00e1ch nhi\u1ec7m x\u1eed l\u00fd t\u1ea5t c\u1ea3 c\u00e1c y\u00eau c\u1ea7u t\u1eeb frontend.<\/p>\n\n\n\n

Khi m\u1ed9t ng\u01b0\u1eddi d\u00f9ng t\u01b0\u01a1ng t\u00e1c v\u1edbi \u1ee9ng d\u1ee5ng, frontend s\u1ebd g\u1eedi m\u1ed9t y\u00eau c\u1ea7u \u0111\u1ebfn server. Server sau \u0111\u00f3 s\u1ebd x\u1eed l\u00fd y\u00eau c\u1ea7u, th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p to\u00e1n c\u1ea7n thi\u1ebft v\u00e0 tr\u1ea3 k\u1ebft qu\u1ea3 l\u1ea1i cho frontend. Nh\u1edd c\u00f3 server, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 truy c\u1eadp v\u00e0 s\u1eed d\u1ee5ng \u1ee9ng d\u1ee5ng m\u00e0 kh\u00f4ng c\u1ea7n quan t\u00e2m \u0111\u1ebfn chi ti\u1ebft b\u00ean trong c\u1ee7a n\u00f3.<\/p>\n\n\n\n

Database: L\u01b0u tr\u1eef v\u00e0 qu\u1ea3n l\u00fd d\u1eef li\u1ec7u<\/strong><\/h3>\n\n\n\n

Database l\u00e0 n\u01a1i l\u01b0u tr\u1eef d\u1eef li\u1ec7u c\u1ee7a \u1ee9ng d\u1ee5ng. T\u00f9y theo nhu c\u1ea7u v\u00e0 t\u00ednh ch\u1ea5t c\u1ee7a \u1ee9ng d\u1ee5ng, c\u00f3 nhi\u1ec1u lo\u1ea1i database kh\u00e1c nhau nh\u01b0 quan h\u1ec7 (SQL) v\u00e0 phi quan h\u1ec7 (NoSQL).<\/p>\n\n\n\n

Ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a database l\u00e0 l\u01b0u tr\u1eef, truy xu\u1ea5t v\u00e0 thao t\u00e1c d\u1eef li\u1ec7u hi\u1ec7u qu\u1ea3. Khi backend x\u1eed l\u00fd y\u00eau c\u1ea7u t\u1eeb frontend, n\u00f3 th\u01b0\u1eddng c\u1ea7n truy c\u1eadp v\u00e0o database \u0111\u1ec3 l\u1ea5y th\u00f4ng tin c\u1ea7n thi\u1ebft. \u0110i\u1ec1u n\u00e0y y\u00eau c\u1ea7u backend ph\u1ea3i c\u00f3 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c t\u1ed1t v\u1edbi database \u0111\u1ec3 tr\u00e1nh l\u00e0m ch\u1eadm t\u1ed1c \u0111\u1ed9 ph\u1ea3n h\u1ed3i c\u1ee7a \u1ee9ng d\u1ee5ng.<\/p>\n\n\n\n

API: C\u1ea7u n\u1ed1i gi\u1eefa Frontend v\u00e0 Backend<\/strong><\/h3>\n\n\n\n

API (Giao di\u1ec7n l\u1eadp tr\u00ecnh \u1ee9ng d\u1ee5ng) l\u00e0 m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c quy t\u1eafc v\u00e0 giao th\u1ee9c cho ph\u00e9p c\u00e1c ph\u1ea7n m\u1ec1m kh\u00e1c nhau giao ti\u1ebfp v\u1edbi nhau. Trong m\u00f4 h\u00ecnh frontend-backend, API \u0111\u00f3ng vai tr\u00f2 nh\u01b0 c\u1ea7u n\u1ed1i gi\u1eefa hai ph\u1ea7n.<\/p>\n\n\n\n

Frontend g\u1eedi y\u00eau c\u1ea7u \u0111\u1ebfn backend th\u00f4ng qua API, v\u00e0 backend ph\u1ea3n h\u1ed3i l\u1ea1i b\u1eb1ng d\u1eef li\u1ec7u \u0111\u00e3 x\u1eed l\u00fd. API kh\u00f4ng ch\u1ec9 gi\u00fap \u0111\u01a1n gi\u1ea3n h\u00f3a qu\u00e1 tr\u00ecnh giao ti\u1ebfp m\u00e0 c\u00f2n t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt cho h\u1ec7 th\u1ed1ng b\u1eb1ng c\u00e1ch h\u1ea1n ch\u1ebf quy\u1ec1n truy c\u1eadp v\u00e0o c\u00e1c ph\u1ea7n nh\u1ea1y c\u1ea3m.<\/p>\n\n\n\n

C\u00e1c ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh Backend ph\u1ed5 bi\u1ebfn<\/strong><\/h2>\n\n\n\n

L\u1eadp tr\u00ecnh backend c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng nhi\u1ec1u ng\u00f4n ng\u1eef kh\u00e1c nhau, m\u1ed7i ng\u00f4n ng\u1eef l\u1ea1i c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m ri\u00eang. S\u1ef1 l\u1ef1a ch\u1ecdn ng\u00f4n ng\u1eef ph\u00f9 h\u1ee3p ph\u1ee5 thu\u1ed9c v\u00e0o y\u00eau c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a t\u1eebng d\u1ef1 \u00e1n.<\/p>\n\n\n\n

Ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng (Java, C#, Python)<\/strong><\/h3>\n\n\n\n

C\u00e1c ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng nh\u01b0 Java, C<\/p>\n\n\n\n