https://github.com/vikasutf8/journalapplication-springboot

backend focused with purposed lean SpringBoot application and intergate with mongoDB NoSQL database
https://github.com/vikasutf8/journalapplication-springboot

Last synced: about 1 year ago
JSON representation

backend focused with purposed lean SpringBoot application and intergate with mongoDB NoSQL database

• Host: GitHub
• URL: https://github.com/vikasutf8/journalapplication-springboot
• Owner: vikasutf8
• Created: 2025-01-30T18:14:31.000Z (over 1 year ago)
• Default Branch: master
• Last Pushed: 2025-02-07T18:10:44.000Z (over 1 year ago)
• Last Synced: 2025-02-07T19:22:42.974Z (over 1 year ago)
• Language: Java
• Size: 29.3 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: readme.md

Awesome Lists containing this project

README

          
# Journal Application 

## Learnt SpringBoot

### Auto-configuration and standalone applications

- SpringBoot is framework for build application in java ,it easy to create stand-alone, production-grade spring based application that you can just run., reduceing effort required to set up and configure  a **spring. application [???].**

- **beans === object --special kya ha --ek bar config kar le fir sab use karlege. done by AplicationContext**

- Context Pathc: locahhost:8080 "ke baad ka name/aplicatiion name ko is "

- try this on terminal ` ps aux | grep PID `

**Meven: build bange ke kaam  aata ha , or dependency manage karta ha**

- mvn package -creates jar

- mvn install -creates/moved jar to local

  `Installing /Users/vikasarya/Projects/ProjectName/pom.xml to /Users/vikasarya/.m2/repository/CompanyName/ProjectName/0.0.1-SNAPSHOT/ProjectName-0.0.1-SNAPSHOT.pom`

  Structure

- java | resource

- **pom.xml:**

- repackaging

  Internal  Working

- ` Car car =new Car() `  yaha hum/ma object create kar raha hu..

- but in spring :we ask to spring ki oject bana kar la kar do....yani ki object ke creation ko externalize kar rahe ha --control change ho gya so Inversion of control

- what is IOC -- ye karta ha ki pure project ki sari class/object rakha lega and jab requirement hogi de dega.

- aplication context --is way to achieve ioc container,

- how IOC container how to store ?? --scan karta ha,how to descide karge rakhen ka `@component`  wale class  ko rakha lega

- @component is annotations :: information provide karti ha jise par bhi likha ha. and all annotation having own specially .

- to create a bean/oject is just annotate any class with @component

- @springBootApplication : is ProjectNameApplication. === index.js |server.js. run it. and it always is one and put at main class

    - @configuration

    - @Enable AutoConfigurat

        - just putting dependency of mongodb/postgre just puting env type

    - @ComponentScan --find beans to store at ioc container

        - `package CompanyName.ProjectName;`  `// it scan in this package`

        - @restController ::same create as beans +something other special

        - @autowired ::write on field to ask object/bean to ioc

RestAPI: generate journal app :

class controller with @RestController is bean created

-  [localhost:8080/](http://localhost:8080/) journal/id/2--path variabale

-  [localhost:8080/](http://localhost:8080/) journal/id?name=vipul --these are request paramters

- 

---

   understanding ORM,JPA,spring data JPA

- jpa is a way to achieve ORM,is set of rules , include interface and annotations that you use in your java class, requires a presistence proivder orm tools for implementation,

- jpa ko use kargo to 3 type ha :: hibernate ,eclipseLink and OpenJPA

- JPA is designed for Relational database ..by mongodb is schemaless

---

Mongodb or best practices;

- controller call services --controller end pointbanayega /routers like and service ko call karge original business logic is present init. like controller at nodejs and entity is models

  -- more specifically ek Interface banan ha ??/ best practice --package -inteface named respo

controller --> service --> repository(interface ha to spring automatic runtime me create karga,in-build ) --> in it monogdb find collections/models --moving to entity and write their

Repository. ::spring data mongo se ek interface provide kiya gaya ha --ye db se query chale ga ?? kase to aapne repository/interface ko extend karna ha inbuild respo

-- now,entity is just model ,we have to map to ORM @Documented

| expressJs | springBoot |  |

| ----- | ----- | ----- |

| .model/Model | entity package |  |

| .controller/Controller | service package |  |

| .router/Route | controller package |  |

| utils/helper/middlware | respository package | it is not exact same lema term |

| .env | application.property |  |