Upgrade from Spring Boot 1.5 to 2.0

POM

• 1.5

  <parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>1.5.10.RELEASE</version><relativePath/></parent>

• 2.0

  <parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.0.3.RELEASE</version><relativePath/></parent>

Spring Data

Some methods of Spring data are renamed:

• FindOne (ID), GetOne (ID)
• Delete (ID), Deletebyid (ID)
• Exists (ID), Existsbyid (ID)
• FindAll (IDs), Findallbyid (IDS)

Configuration

When upgrading, you can add spring-boot-properties-migrator to the POM so that you will be prompted to change the configuration at startup:

<dependency>    <groupId>org.springframework.boot</groupId>    <artifactId>spring-boot-properties-migrator</artifactId>    <scope>runtime</scope></dependency>

The major changes are security (the security auto-configuration is no longer customizable,a global security auto-configuration are now pro vided) and management parts.

• Security
  The configuration and management.security at the beginning of security have expired, as the following configuration is no longer supported and needs to be adjusted to the code:

  security:ignored: /api-docs,/swagger-resources/**,/swagger-ui.html**,/webjars/**

• Management

  management:security:enabled: falseport: 8090

  Modified to:

  management:server:port: 8090

• DataSource

  datasource:initialize: false

  Modified to:

  datasource:initialization-mode: never

If you use PostgreSQL, you may get an error: Method Org.postgresql.jdbc.PgConnection.createClob () is not yet implemented hibernate, you need to modify the configuration:

jpa:    database-platform: org.hibernate.dialect.PostgreSQLDialect    properties:       hibernate:         default_schema: test         jdbc:           lob:             non_contextual_creation: true

For more parameters to adjust, see the reference document at the end of this article.

Security

Websecurityconfigureradapter

• Security.ignored

  @Overridepublic void configure(WebSecurity web) throws Exception {web.ignoring().antMatchers("/api-docs", "/swagger-resources/**", "/swagger-ui.html**", "/webjars/**");}

• AuthenticationManager
  If AuthenticationManager is injected into the code,

  @Autowiredprivate AuthenticationManager authenticationManager;

  Error at startup: Field AuthenticationManager required a bean of type ' Org.springframework.security.authentication.AuthenticationManager ' that could not being Found. Please add the following code to the Websecurityconfigureradapter:

  @Bean@Overridepublic AuthenticationManager authenticationManagerBean() throws Exception {return super.authenticationManagerBean();}

Actuator

The actuator access path has changed, and the word actuator ([/actuator/health],[/actuator/info]) is added to the front of the URL, which can be seen in the startup log.

Not to be continued ...

Reference documents

Spring Boot 2.0 Migration Guide
Spring Boot 2.0 Configuration Changelog
Spring Boot 2.0 new features and trends

Upgrade from Spring Boot 1.5 to 2.0