如何通过Spring Boot多个模块继承application.properties [英] How to inherit application.properties with spring boot multiple modules

问题描述

我使用spring boot多个模块，我想从parent继承application.properties.我有一个父模块:spring-ecommere-demo和一个子模块:model，core和security.在父模块中，我将一些配置jdbc设置为:

I using spring boot multiple modules and i want inherit application.properties from parent . I have parent module : spring-ecommere-demo and sub module : model , core and security. In parent modules i put some config jdbc look like :

application.properties (父模块)

spring.datasource.url=jdbc:mysql://localhost:3306/BaoTrung
spring.datasource.username=root
spring.datasource.password=123456
spring.jpa.show-sql=true

在子模块安全性中，我的特定配置如下:

And in sub module security i specific config look like:

application-security.properties (安全模块)

app.jwtSecret= JWTSuperSecretKey
app.jwtExpirationInMs = 604800000

安全模块中的Spring Boot应用程序中的配置如下:

And config in Spring Boot application in security module look like :

@SpringBootApplication(scanBasePackages = "springecommeredemo")
@PropertySources({
        @PropertySource("application-security.properties")
})

但是当我运行它时，它抛出了异常

But when i run it, it throw me exception

说明:

无法配置数据源:未指定'url'属性，并且无法配置任何嵌入式数据源.

Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.

原因:无法确定合适的驱动程序类别

Reason: Failed to determine a suitable driver class

动作:

请考虑以下事项:如果要嵌入式数据库(H2，HSQL或Derby)，请将其放在类路径上.如果您有数据库设置要从特定配置文件加载，您可能需要激活它(配置文件开发者当前处于活动状态).

Consider the following: If you want an embedded database (H2, HSQL or Derby), please put it on the classpath. If you have database settings to be loaded from a particular profile you may need to activate it (the profiles dev are currently active).

这意味着子模块安全性不能从父项目继承属性.如何从父模块继承所有属性.因为我使用相同的数据库，所以我不想在项目中配置重复的jdbc.我要继承通用属性.请帮忙

It mean sub module security can't inherit properties from parent project. How to inherit all properties from parent module. Because i using same database , i don't want config duplicate jdbc in my project. I want inherit common properties.Please help

推荐答案

您需要添加多个属性可以在Spring中访问，我为 @PropertySource 添加了重复的注释从 Java 8 开始，如果您需要使用同一注释的多个实例，则必须将它们包装在容器注释中.使用 Java 8 ，不再需要此代码，从而可以编写更清晰，更易读的代码.

You need to add multiple Properties can be accessed in Spring, I added duplicated annotation for @PropertySource since before Java 8 if you needed to use multiple instances of the same annotation, they had to be wrapped in a container annotation. With Java 8, that's no longer necessary, allowing for cleaner, more readable code.

@SpringBootApplication(scanBasePackages = "springecommeredemo")
@PropertySource("application.properties")
@PropertySource("application-security.properties")

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