BAEL-5649 (#12677)

* add hexagonal architecture example project

* rename class

* add unit test and integration test

* add new line

* reorder pom

* remove maven wrapper

* [BAEL-5649] add article code

* remove files added by mistake

* get parameter type using reflection and serioalize JSON into POJOs

* clean code

* clean code

* reformat

* implement PR feedback

* reformat with contiunation space eq to 2

* replace UserDto with firstName and lastName

spring-web-modules/spring-mvc-basics-5/src/main/java/com/baeldung/jsonargs/AddressDto.java

@@ -0,0 +1,55 @@
+package com.baeldung.jsonargs;
+
+public class AddressDto {
+
+    private String streetName;
+    private String streetNumber;
+    private String postalCode;
+    private String city;
+    private String country;
+
+    public String getStreetName() {
+        return streetName;
+    }
+
+    public void setStreetName(String streetName) {
+        this.streetName = streetName;
+    }
+
+    public String getStreetNumber() {
+        return streetNumber;
+    }
+
+    public void setStreetNumber(String streetNumber) {
+        this.streetNumber = streetNumber;
+    }
+
+    public String getPostalCode() {
+        return postalCode;
+    }
+
+    public void setPostalCode(String postalCode) {
+        this.postalCode = postalCode;
+    }
+
+    public String getCity() {
+        return city;
+    }
+
+    public void setCity(String city) {
+        this.city = city;
+    }
+
+    public String getCountry() {
+        return country;
+    }
+
+    public void setCountry(String country) {
+        this.country = country;
+    }
+
+    @Override
+    public String toString() {
+        return "Address{" + "streetName='" + streetName + '\'' + ", streetNumber='" + streetNumber + '\'' + ", postalCode='" + postalCode + '\'' + ", city='" + city + '\'' + ", country='" + country + '\'' + '}';
+    }
+}