Merge pull request #6503 from eugenp/BAEL-12185-v2

new example for jackson article

jackson/src/test/java/com/baeldung/jackson/exception/UserWithRootNamespace.java

@@ -0,0 +1,18 @@
+package com.baeldung.jackson.exception;
+
+import com.fasterxml.jackson.annotation.JsonRootName;
+
+@JsonRootName(value = "user", namespace="users")
+public class UserWithRootNamespace {
+    public int id;
+    public String name;
+
+    public UserWithRootNamespace() {
+        super();
+    }
+
+    public UserWithRootNamespace(final int id, final String name) {
+        this.id = id;
+        this.name = name;
+    }
+}

jackson/src/test/java/com/baeldung/jackson/test/JacksonAnnotationUnitTest.java

@@ -37,6 +37,7 @@ import com.baeldung.jackson.date.EventWithSerializer;
 import com.baeldung.jackson.dtos.MyMixInForIgnoreType;
 import com.baeldung.jackson.dtos.withEnum.DistanceEnumWithValue;
 import com.baeldung.jackson.exception.UserWithRoot;
+import com.baeldung.jackson.exception.UserWithRootNamespace;
 import com.baeldung.jackson.jsonview.Item;
 import com.baeldung.jackson.jsonview.Views;
 import com.fasterxml.jackson.core.JsonProcessingException;
@@ -47,6 +48,7 @@ import com.fasterxml.jackson.databind.SerializationFeature;
 import com.fasterxml.jackson.databind.ser.FilterProvider;
 import com.fasterxml.jackson.databind.ser.impl.SimpleBeanPropertyFilter;
 import com.fasterxml.jackson.databind.ser.impl.SimpleFilterProvider;
+import com.fasterxml.jackson.dataformat.xml.XmlMapper;
 
 public class JacksonAnnotationUnitTest {
 
@@ -378,13 +380,40 @@ public class JacksonAnnotationUnitTest {
     public void whenDeserializingUsingJsonAlias_thenCorrect() throws IOException {
 
         // arrange
-        String json = "{\"fName\": \"Alex\", \"lastName\": \"Theedom\"}";
+        String json = "{\"fName\": \"John\", \"lastName\": \"Green\"}";
 
         // act
         AliasBean aliasBean = new ObjectMapper().readerFor(AliasBean.class).readValue(json);
 
         // assert
-        assertThat(aliasBean.getFirstName(), is("Alex"));
+        assertThat(aliasBean.getFirstName(), is("John"));
     }
     
+    @Test
+    public void whenSerializingUsingXMLRootNameWithNameSpace_thenCorrect() throws JsonProcessingException {
+
+        // arrange
+        UserWithRootNamespace author = new UserWithRootNamespace(1, "John");
+
+        // act
+        ObjectMapper mapper = new XmlMapper();
+        mapper = mapper.enable(SerializationFeature.WRAP_ROOT_VALUE).enable(SerializationFeature.INDENT_OUTPUT);
+        String result = mapper.writeValueAsString(author);
+
+        // assert
+        assertThat(result, containsString("<user xmlns=\"users\">"));
+
+        /*
+            <user xmlns="users">
+              <id xmlns="">3006b44a-cf62-4cfe-b3d8-30dc6c46ea96</id>
+              <id xmlns="">1</id>
+              <name xmlns="">John</name>
+              <items xmlns=""/>
+            </user>
+        */
+
+    }
+    
+    
+
 }