https://github.com/daggerok/spring-boot-runtime-datasource-initialization

This repository contains example how to initialize different data-sources in runtime and using them to querying SQL statements
https://github.com/daggerok/spring-boot-runtime-datasource-initialization

docker gradle kotlin maven oracle postgresql spring-boot webflux

Last synced: 14 days ago
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This repository contains example how to initialize different data-sources in runtime and using them to querying SQL statements

• Host: GitHub
• URL: https://github.com/daggerok/spring-boot-runtime-datasource-initialization
• Owner: daggerok
• License: mit
• Created: 2018-04-05T01:42:55.000Z (almost 7 years ago)
• Default Branch: master
• Last Pushed: 2018-04-08T21:34:13.000Z (almost 7 years ago)
• Last Synced: 2024-11-11T15:37:36.982Z (2 months ago)
• Topics: docker, gradle, kotlin, maven, oracle, postgresql, spring-boot, webflux
• Language: Shell
• Homepage:
• Size: 2.57 MB
• Stars: 3
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.adoc
  • License: LICENSE

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README

        
= spring-boot-runtime-datasource-initialization image:https://travis-ci.org/daggerok/spring-boot-runtime-datasource-initialization.svg?branch=master["Build Status", link="https://travis-ci.org/daggerok/spring-boot-runtime-datasource-initialization"]

//tag::content[]

== Runtime datasource initialization using spring-boot

This repository contains my trying to initialize different data-sources in runtime and use them to querying / handling SQL data.

To do so, my starting point is in-memory h2 database.

I have implemented two rest resources (GET and POST).

GET resource basically showing current (by default in-memory h2) dataSource bean containing from application context.

POST resource allows you create new DataSource bean in runtime and add it to dataSourcesHolder bean.

lastly we are executing a SQL query to verify if that dataSource is working properly

.prepare databases using docker (hope you have enough RAM) and start app

----

./gradlew composeUp -Pprofile=all

bash build/libs/*.jar

# ora

http :8080/ \

  query="select 1 from dual" \

  springJpaDatabase=ORACLE \

  springDatasourceUrl="jdbc:oracle:thin:@//127.0.0.1:1521/xe" \

  springDatasourceUsername=system \

  springDatasourcePassword=oraclepassword \

  springDatasourceClassName="oracle.jdbc.OracleDriver"

{

    "databaseProductVersion": "Oracle Database 11g Express Edition Release 11.2.0.2.0 - 64bit Production",

    "driverName": "Oracle JDBC driver",

    "driverVersion": "11.2.0.4.0",

    "holdingDataSources": "{ORACLE=HikariDataSource (HikariPool-2)}",

    "result": {

        "columnCount": 1

    },

    "url": "jdbc:oracle:thin:@//127.0.0.1:1521/xe",

    "userName": "SYSTEM"

}

# pg

http :8080/ \

  query="select 1" \

  springJpaDatabase=POSTGRESQL \

  springDatasourceUrl="jdbc:postgresql://0.0.0.0:5432/postgresdatabase" \

  springDatasourceUsername=postgresuser \

  springDatasourcePassword=postgrespassword \

  springDatasourceClassName="org.postgresql.Driver"

{

    "databaseProductVersion": "9.4.17",

    "driverName": "PostgreSQL Native Driver",

    "driverVersion": "PostgreSQL 9.4.1212.jre7",

    "holdingDataSources": "{ORACLE=HikariDataSource (HikariPool-2), POSTGRESQL=HikariDataSource (HikariPool-3)}",

    "result": {

        "columnCount": 1

    },

    "url": "jdbc:postgresql://0.0.0.0:5432/postgresdatabase",

    "userName": "postgresuser"

}

./gradlew composeDown -Pprofile=all

# or: docker-compose -f docker-compose-all.yaml down -v; docker-compose -f docker-compose-all.yaml rm -v

----

////

=== basic (default) README

.gradle

----

./gradlew

java -jar build/libs/*.jar

bash build/libs/*.jar

./gradlew build composeUp

./gradlew composeDown

----

.maven

----

./mvnw

java -jar target/*.jar

bash target/*.jar

./mvnw; ./mvnw com.dkanejs.maven.plugins:docker-compose-maven-plugin:1.0.1:up

./mvnw com.dkanejs.maven.plugins:docker-compose-maven-plugin:1.0.1:down

----

////

generated by link:https://github.com/daggerok/generator-jvm/[jvm] yeoman generator

//end::content[]