Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.

pom.xml

 

<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">

<modelVersion>4.0.0</modelVersion>

<parent>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-parent</artifactId>

<version>2.6.5</version>

<relativePath/> <!-- lookup parent from repository -->

</parent>

<groupId>com.example2</groupId>

<artifactId>demo-1</artifactId>

<version>0.0.1-SNAPSHOT</version>

<name>demo-1</name>

<description>Demo project for Spring Boot</description>

<properties>

<java.version>11</java.version>

</properties>

<dependencies>

<dependency>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-data-jdbc</artifactId>

</dependency>

<dependency>

<groupId>org.mybatis.spring.boot</groupId>

<artifactId>mybatis-spring-boot-starter</artifactId>

<version>2.2.2</version>

</dependency>

 

<dependency>

<groupId>org.postgresql</groupId>

<artifactId>postgresql</artifactId>

<scope>runtime</scope>

</dependency>

<dependency>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-test</artifactId>

<scope>test</scope>

</dependency>

</dependencies>

 

<build>

<plugins>

<plugin>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-maven-plugin</artifactId>

</plugin>

</plugins>

</build>

 

</project>

 

이걸로는 됨.

 

application.properties는

 

 

spring.datasource.hikari.maximum-pool-size=4

spring.datasource.url=jdbc:postgresql://localhost:5432/testdb

spring.datasource.username=postgres

spring.datasource.password=[your password]

 

일단 오류 없음.