试图遵循https://spring.io/guides/gs/accessing-data-mysql/中的指南,但是当我启动Java应用程序时,它显示以下错误:
Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.
Reason: Failed to determine a suitable driver class
Action:
Consider the following:
If you want an embedded database (H2, HSQL or Derby), please put it on the classpath.
If you have database settings to be loaded from a particular profile you may need to activate it (no profiles are currently active).
这是我的申请。属性:
spring.jpa.hibernate.ddl-auto=create
spring.datasource.url=jdbc:mysql://localhost:3306/db_currency
spring.datasource.username=springuser
spring.datasource.password=ThePassword
数据库创建遵循以下指导:
mysql> create database db_example; -- Create the new database
mysql> create user 'springuser'@'localhost' identified by 'ThePassword';
mysql> grant all on db_example.* to 'springuser'@'localhost';
我的build.gradle是:
buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath("org.springframework.boot:spring-boot-gradle-plugin:2.0.5.RELEASE")
}
}
apply plugin: 'java'
apply plugin: 'eclipse'
apply plugin: 'idea'
apply plugin: 'org.springframework.boot'
apply plugin: 'io.spring.dependency-management'
bootJar {
baseName = 'gs-accessing-data-mysql'
version = '0.1.0'
}
repositories {
mavenCentral()
}
sourceCompatibility = 1.8
targetCompatibility = 1.8
dependencies {
compile("org.springframework.boot:spring-boot-starter-web")
// JPA Data (We are going to use Repositories, Entities, Hibernate, etc...)
compile 'org.springframework.boot:spring-boot-starter-data-jpa'
// Use MySQL Connector-J
compile 'mysql:mysql-connector-java'
testCompile('org.springframework.boot:spring-boot-starter-test')
}
答案 0 :(得分:1)
从研究中可以找到这个对其他人有用的答案,在我看来,将其添加到application.properties文件中是有效的:
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.PostgreSQL94Dialect