Spring启动无法使用PostgreSQL驱动程序加载DataSource

Question

我已经使用Spring Boot 1.0.2.RELEASE成功开发了一个原型(直到今天为1.0.1.RELEASE).

我搜索并搜索过如下解决方案: Spring Boot jdbc datasource autoconfiguration在独立的tomcat上失败 Spring Boot/Spring数据import.sql不运行Spring-Boot-1.0.0.RC1

他们都建议让Spring Boot完成这项工作.当使用H2时,一切正常,但当我尝试切换到PostgreSQL时,我得到:

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfiguration.class]: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean org.springframework.boot.autoconfigure.orm.jpa.JpaBaseConfiguration.entityManagerFactory(org.springframework.orm.jpa.JpaVendorAdapter)] threw exception; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [javax.sql.DataSource] is defined

我的build.gradle如下:

loadConfiguration()

def loadConfiguration() {
def environment = hasProperty('env') ? env : 'dev'
project.ext.envrionment = environment
println "Environment is set to $environment"

def configFile = file('config.groovy')
def config = new ConfigSlurper("$environment").parse(configFile.toURL())
project.ext.config = config
}

buildscript {
ext {
    springBootVersion = '1.0.2.RELEASE'
}
repositories {
    mavenCentral()
}
dependencies {
    classpath("org.springframework.boot:spring-boot-gradle-   plugin:${springBootVersion}")
}
}

apply plugin: 'java'
apply plugin: 'eclipse'
apply plugin: 'idea'
apply plugin: 'spring-boot'
apply plugin: 'war'
apply plugin: 'groovy'

war {
baseName = 'test'
version =  '0.0.1-SNAPSHOT'
}

configurations {
providedRuntime
}

repositories {
mavenCentral()
}

dependencies {
compile("org.springframework.boot:spring-boot-starter-web:${springBootVersion}")
compile("org.springframework.boot:spring-boot-starter-thymeleaf:${springBootVersion}")

compile("org.springframework.boot:spring-boot-starter-jdbc:${springBootVersion}")
compile("org.springframework.boot:spring-boot-starter-data-jpa:${springBootVersion}")
compile("postgresql:postgresql:9.1-901.jdbc4")
//compile("com.h2database:h2")

testCompile("org.springframework.boot:spring-boot-starter-test:${springBootVersion}")

}

task wrapper(type: Wrapper) {
gradleVersion = '1.11'
}

application.properties:

spring.jpa.database=POSTGRESQL
spring.jpa.show-sql=false
spring.jpa.hibernate.ddl-auto=update

spring.database.driverClassName=org.postgresql.Driver
spring.datasource.url=jdbc:postgresql://localhost/cms
spring.datasource.username=cms
spring.datasource.password=NA

删除application.properties并将依赖关系更改回H2,一切正常.

我找不到我做错的地方:-(

Answer 1

这是从哪里来的:database.driverClassName=org.postgresql.Driver？不是spring.datasource.driverClassName吗？

Answer 2

spring.datasource.driver-class-name=org.postgresql.Driver

如果您最近刚刚将 postgres 添加到依赖项中，请确保重新加载您的项目。

Answer 3

如果依赖项没有刷新，有时尝试重新导入您的 mvn 项目，同时将以下内容添加到您的pom.xml

 <dependency>
            <groupId>postgresql</groupId>
            <artifactId>postgresql</artifactId>
            <version>9.1-901.jdbc4</version>
</dependency>

或者给你的build.gradle

implementation "postgresql:postgresql:9.1-901.jdbc4"