java - HikariPool-1 - driverClassName 需要 jdbcUrl

Question

我又开始编写旧程序 https://github.com/JonkiPro/REST-Web-Services .我已将 Spring Boot 从 15.6 版更新到 2.0.0 版。我在编译时遇到了很多问题，但我无法处理一个。好吧，在编译过程中，他把我扔进了控制台

2018-03-18 21:54:53.339 ERROR 3220 --- [ost-startStop-1] com.zaxxer.hikari.HikariConfig           : HikariPool-1 - jdbcUrl is required with driverClassName.
2018-03-18 21:54:55.392  INFO 3220 --- [ost-startStop-1] j.LocalContainerEntityManagerFactoryBean : Building JPA container EntityManagerFactory for persistence unit 'unit'
2018-03-18 21:54:56.698  INFO 3220 --- [ost-startStop-1] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'unit'
2018-03-18 21:54:56.778 ERROR 3220 --- [ost-startStop-1] com.zaxxer.hikari.HikariConfig           : HikariPool-1 - jdbcUrl is required with driverClassName.
2018-03-18 21:54:56.782 ERROR 3220 --- [ost-startStop-1] o.s.b.web.embedded.tomcat.TomcatStarter  : Error starting Tomcat context. Exception: org.springframework.beans.factory.UnsatisfiedDependencyException. Message: Error creating bean with name 'webSecurityConfig': Unsatisfied dependency expressed through field 'userDetailsService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userDetailsService' defined in file [C:\Users\Jonatan\Documents\GitHub\REST-Web-Services\web\out\production\classes\com\web\web\security\service\impl\UserDetailsServiceImpl.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userRepository': Cannot create inner bean '(inner bean)#65d6e77b' of type [org.springframework.orm.jpa.SharedEntityManagerCreator] while setting bean property 'entityManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#65d6e77b': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory': Post-processing of FactoryBean's singleton object failed; nested exception is java.lang.IllegalArgumentException: jdbcUrl is required with driverClassName.
2018-03-18 21:54:56.821  WARN 3220 --- [           main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat

我从来没有犯过这样的错误。我完全不知道这意味着什么。我的基地属性如下所示

spring:
  datasource:
    driver-class-name: org.postgresql.Driver
    url: jdbc:postgresql:database
    username: root
    password: root
    schema: classpath:/db/init/schema.sql

我不知道如何处理这个错误。我已经编程了很长时间，但是我第一次遇到了 hikari 的概念。我正在使用 Tomcat(在 Spring Boot 中)服务器和 PostgreSQL 数据库。

Answer 1

我在另一个上下文中遇到了同样的问题。来自 79. Data Access - Configure a Custom DataSource

if you happen to have Hikari on the classpath, this basic setup does not work, because Hikari has no url property (but does have a jdbcUrl property)

Hikari 是 Spring Boot 2 中的默认池。

所以你可以替换配置url: jdbc:postgresql:database -> jdbc-url: jdbc:postgresql:database

或者您可以保留配置，但您需要定义另一个 Bean 来处理映射(别名)

@Bean
@Primary
@ConfigurationProperties("app.datasource")
public DataSourceProperties dataSourceProperties() {
    return new DataSourceProperties();
}

@Bean
@ConfigurationProperties("app.datasource")
public DataSource dataSource(DataSourceProperties properties) {
    return properties.initializeDataSourceBuilder().
        .build();
}