Spring3.2.1+Flyway10.4.1升级后Flyway实例化报错：Name must not be null

升级Spring从2.7.x到3.2.1，同时将Flyway从8.5升级到10.4.1后，出现如下异常：

Failed to instantiate [org.flywaydb.core.Flyway]: Factory method 'flyway' threw exception with message: Name must not be null

针对PostgreSQL 15.x环境，可通过以下步骤解决：

一、调整application.properties配置 #

# Spring Flyway 配置
spring.flyway.enabled=true
spring.flyway.baselineOnMigrate=true
spring.flyway.validateOnMigrate=true
spring.flyway.locations=classpath:db/migration

# 数据源配置
spring.datasource.jdbc-url=jdbc:postgresql://localhost:5432/database-name
spring.datasource.url=jdbc:postgresql://localhost:5432/database-name
spring.datasource.driverClassName=org.postgresql.Driver
spring.datasource.username=<<username>>
spring.datasource.password=<<password>>
spring.jpa.database-platform=org.hibernate.dialect.PostgreSQLDialect

配置调整说明：

• 将Hibernate方言从PostgreSQL10Dialect改为PostgreSQLDialect
• 新增spring.datasource.jdbc-url配置（替代原spring.datasource.url，保留原配置做兼容）
• 确保JDBC URL使用jdbc:postgresql协议，而非旧的postgre协议

二、更新Maven依赖 #

Flyway 10+版本需要单独引入对应数据库的支持依赖，此前仅需flyway-core即可。更新后的依赖如下：

<!-- Flyway 核心及数据库支持依赖 -->
<dependency>
    <groupId>org.flywaydb</groupId>
    <artifactId>flyway-core</artifactId>
    <version>10.4.1</version>
</dependency>
<dependency>
    <groupId>org.flywaydb</groupId>
    <artifactId>flyway-database-postgresql</artifactId>
    <version>10.4.1</version>
    <scope>runtime</scope>
</dependency>
<!-- 若无需支持SQL Server可移除以下依赖 -->
<dependency>
    <groupId>org.flywaydb</groupId>
    <artifactId>flyway-sqlserver</artifactId>
    <version>10.4.1</version>
</dependency>

内容的提问来源于stack exchange，提问作者Dt D