java - SpringBoot Configuration with application.yml -

i have little springboot application, can execute different functions via openldap.

• getuser
• createuser
• deleteuser
• etc.

that works fine. want create application.yml, can manage different environments different credentials. read tutorials, still have understanding problems. code looks that:

usercontroller:

... protected static string serverurl = "xxxxx:90xx"; protected static string ldapbinddn = "cn=admin, xxxxx"; protected static string ldappassword = "xxxx"; ...  @requestmapping(value = "/{userid:.+}",method = requestmethod.get,consumes="application/json",produces = "application/json") public userdata getuser(@pathvariable string userid) {               dircontext context = connecttoldap();     //some operations...     context.close();         return user; } ... // same other functions 

my plan now, want specify credentials in application.yml instead of @ beginning of usercontroller (see above).

then have created application.yml in src/main/resources:

# actual environment spring:    profiles.actives: development --- # dev profile  spring:   profiles: dev   datasource:   serverurl: ldaps://xxxxxx:90xx   adminname: xxxx   adminpassword: xxxxxx   basedn: xxxxx --- # production profile   spring:   profiles: prod      datasource:  serverurl: ldaps://xxxx2:90xx  adminname: xxxxx2  adminpassword: xxxxx2  basedn: xxxxxx 

now need call configuration. have read in 1 tutorial (http://therealdanvega.com/blog/2017/06/26/spring-boot-configuration-using-yaml) have create class "applicationproperties" properties of .yml file.

@component @configurationproperties("datasource") public class applicationproperties {  private string serverurl; private string adminname; private string adminpassword; private string basedn;  // getter-/setter-methods 

}

now need define variables beginning values .yml, right? went usercontroller , tried that:

private string serverurl; private string adminname; private string adminpassword; private string basedn;    @autowired    applicationproperties appprop;  @requestmapping(value = "/{userid:.+}",method = requestmethod.get,consumes="application/json",produces = "application/json") public userdata getuser(@pathvariable string userid) {               dircontext context = connecttoldap();     //some operations...     context.close();         return user; } ... // same other functions   private dircontext connecttoldap(){     system.out.prinln(appprop.getserverurl());     system.out.prinln(appprop.getadminname());     system.out.prinln(appprop.getadminpassword());     .... // code ldap connection  } 

but variable "appprop" still empty. know, here somewhere big understanding problem. don't know how call these properties .yml file.

thanks every in advance!

you can properties .yml file creating config class:

application.yml

datasource:     serverurl: ldaps://xxxxxx:90xx     adminname: xxxx     adminpassword: xxxxxx     basedn: xxxxx 

applicationconfig.java class :

@configuration @enableconfigurationproperties @configurationproperties(prefix = "datasource") public class applicationconfig {      private string serverurl;     private string adminname;     private string adminpassword;     private string basedn;      //getters setters  } 

then can call applicationconfig class

@autowired public applicationconfig app;   public userdata getuser(@pathvariable string userid) {                 dircontext context = connecttoldap();       //some operations...       appprop.getserverurl();       appprop.getadminname();       context.close();           return user; } 

and recommend create profile based properties spring boot picks them automatically, application-{profile}.{properties|yml} can create application-production.yml file , set profile adding @profile("production") annotation in class.