How to resolve ambiguity in Spring constructor injection -

i trying learn constructor injection using spring 4.3.

i having class structure stated below.

@component      public class student {      private address address; private city city;  public student(address address, city city) {     this.address = address;     this.city = city; }  public student(city city, address address) {     this.address = address;     this.city = city; }  public student(city city) {     this.city = city; }  public student(address address) {     this.address = address; } } 

java based configuration class:

@configuration @componentscan(basepackages = "com.spring.constructorinjection") public class studentconfiguration {  } 

client code:

   applicationcontext context = new  annotationconfigapplicationcontext(studentconfiguration.class);    student student = context.getbean(student.class);    system.out.println(student.getcity());    system.out.println(student.getaddress()); 

how can structure java based configuration class assure specific constructor injected?

depends on how want can create bean along profile, able activate @ run time

@configuration @componentscan(basepackages = "com.spring.constructorinjection") public class studentconfiguration {  //occasion live @bean @profile("live") public student getstudent(address address, city city){     return new student(address,city); }  //occasion test @bean @profile("test") public student getstudent(address address){     return new student(address); }   //occasion throwaway @bean @profile("throwaway") public student getstudent(city city){     return new student(city); }  } 

//make sure address , city annotated component , component scan enabled packages