Spring 个人资料。配置数据库问题
Spring profiles. Configuration database issue
我正在尝试探索 Spring 个人资料并确实选择了以下资源:
https://dzone.com/articles/spring-boot-profiles-1
所以,我重复了教程中显示的代码(只有一个 - 我的数据库设置在 application.properties 文件中):
application.properties:
spring.profiles.active=dev
spring.application.name=profiles
app.message=This is message ${spring.application.name}
申请-dev.properties:
app.message=This is message ${spring.application.name} for dev profile
#Database settings
spring.datasource.url=jdbc:mysql://localhost:3306/developerparse?useUnicode=yes&characterEncoding=UTF-8
spring.datasource.username=root
spring.datasource.password=password
spring.datasource.driver-class-name=com.cj.jdbc.Driver
spring.jpa.hibernate.ddl-auto=update
spring.datasource.tomcat.connection-properties=useUnicode=true;characterEncoding=utf-8;
spring.datasource.sql-script-encoding=UTF-8
配置文件:
@Configuration
@ConfigurationProperties("spring.datasource")
@SuppressWarnings("unused")
public class DBConfiguration {
private String driverClassname;
private String url;
private String username;
private String password;
@Profile("dev")
@Bean
public String devDatabaseConnection(){
String DBConnection = "DB connection for DEV H2";
System.out.println(DBConnection);
System.out.println(driverClassname);
System.out.println(url);
return DBConnection;
}
}
所以,配置没有按照教程中的预期工作 - 当我启动项目时,日志中出现以下消息:
- .......
- .......
- DEV H2 的数据库连接
- 空
- 空
但期望(在教程中)在日志中我得到 ** url ** 和 ** driver-class-name **:
我错过了什么?
您需要为变量创建标准的 getter 和 setter
我正在尝试探索 Spring 个人资料并确实选择了以下资源:
https://dzone.com/articles/spring-boot-profiles-1
所以,我重复了教程中显示的代码(只有一个 - 我的数据库设置在 application.properties 文件中):
application.properties:
spring.profiles.active=dev
spring.application.name=profiles
app.message=This is message ${spring.application.name}
申请-dev.properties:
app.message=This is message ${spring.application.name} for dev profile
#Database settings
spring.datasource.url=jdbc:mysql://localhost:3306/developerparse?useUnicode=yes&characterEncoding=UTF-8
spring.datasource.username=root
spring.datasource.password=password
spring.datasource.driver-class-name=com.cj.jdbc.Driver
spring.jpa.hibernate.ddl-auto=update
spring.datasource.tomcat.connection-properties=useUnicode=true;characterEncoding=utf-8;
spring.datasource.sql-script-encoding=UTF-8
配置文件:
@Configuration
@ConfigurationProperties("spring.datasource")
@SuppressWarnings("unused")
public class DBConfiguration {
private String driverClassname;
private String url;
private String username;
private String password;
@Profile("dev")
@Bean
public String devDatabaseConnection(){
String DBConnection = "DB connection for DEV H2";
System.out.println(DBConnection);
System.out.println(driverClassname);
System.out.println(url);
return DBConnection;
}
}
所以,配置没有按照教程中的预期工作 - 当我启动项目时,日志中出现以下消息:
- .......
- .......
- DEV H2 的数据库连接
- 空
- 空
但期望(在教程中)在日志中我得到 ** url ** 和 ** driver-class-name **:
我错过了什么?
您需要为变量创建标准的 getter 和 setter