Question 103622 in Azure Question posted in
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How to read Azure app config values from Java SpringBoot app

I have a Springboot app that is trying to connect and read values from an app config resource.

Some keys in the Azure app config (which I am unable to change) are in this format

`

/application/config.datasource.jdbc-url

/application/config.datasource.password

/application/config.datasource.username`

I have a config Java class with prefix ("config"), but I don’t know what member variables I should have in order to access "datasource.jdbc-url", "datasource.password" etc.

If the app config was just /application/config.username

then I could just use the below in my Java class

String username;

but for some of the configs that include multiple dots and some dashes (which Java identifiers can’t have), how can I read the values?

Thank you!

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3

Answers


  1. 0

    Your use case is similar to this sample azure-spring-cloud-starter-appconfiguration-config-sample, please try to define the properties class to bind the configurations in Azure App Configuration.

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  2. 0

    Adding to @Moarchy Chan@ConfigurationProperties(prefix = "config.datasource")

    In Azure portal>App configuration> Configuration explorer, I have created keys and values for Username, Password and Jdbc url.

    enter image description here
    This is my Class UserProperties,

     @ConfigurationProperties(prefix = "config.datasource")
        public  class  UserProperties {
        
        private String username;
        
        private String password;
        
        private String jdbcurl;
        
        public String getUsername() {
        
        return  username;
        
        }
        
        public  void setUsername(String username) {
        
        this.username = username;
        
        }
        
        public String getPassword() {
        
        return  password;
        
        }
        
        public  void setPassword(String password) {
        
        this.password = password;
        
        }
        
        public String getJdbcurl() {
        
        return  jdbcurl;
        
        }
        
        public  void setJdbcurl(String jdbcurl) {
        
        this.jdbcurl = jdbcurl;
        
        }
        
        }

    Here is the UserController I have created,

         public  class UserController {

private  final UserProperties properties;

public  UserController(UserProperties properties) {

this.properties = properties;

}

@GetMapping("/Anu")

public String getUsername() {

return  "username: " + properties.getUsername();

}

@GetMapping("/vyshu")

public String getPassword() {

return  "password: " + properties.getPassword();

}

@GetMapping("/priya")

public String getJdbcurl() {

return  "jdbcurl: " + properties.getJdbcurl();

}

}

    This the bootstrap for my code, you should add your connection string in {},
    spring.cloud.azure.appconfiguration.stores[0].connection-string= ${APP_CONFIGURATION_CONNECTION_STRING}

    This is the output for my Username,
    enter image description here
    This is the output for my Password,
    enter image description here
    This is the output for my jdbcurl,
    enter image description here

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  3. 0

    You have two options depending on what you are looking for. You can either use @Value("config.datasource.jdbc-url") or you can use nested properties.

    public  class  Datasource {

  private String username;
        
  private String password;
        
  private String jdbcurl;

  ...
}

@ConfigurationProperties(prefix = "config")
class MyProperties {

  private Datasource datasource = new Datasource();

  ...

}
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