BAEL-6509 - JSON to XML conversion in Java (eugenp#14050)

* BAEL-6509 - JSON to XML conversion * BAEL-6509 - CRLF to LF
SmartyAnsh · May 27, 2023 · d9027f6 · d9027f6
1 parent 668b8f0
commit d9027f6
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diff --git a/xml-2/pom.xml b/xml-2/pom.xml
@@ -26,6 +26,26 @@
             <version>${junit-jupiter.version}</version>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.json</groupId>
+            <artifactId>json</artifactId>
+            <version>${json.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+            <version>${jackson.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.dataformat</groupId>
+            <artifactId>jackson-dataformat-xml</artifactId>
+            <version>${jackson.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.github.javadev</groupId>
+            <artifactId>underscore</artifactId>
+            <version>${underscore.version}</version>
+        </dependency>
     </dependencies>
 
     <build>
@@ -51,6 +71,9 @@
 
     <properties>
         <dom4j.version>2.1.3</dom4j.version>
+        <jackson.version>2.14.1</jackson.version>
+        <json.version>20230227</json.version>
+        <underscore.version>1.89</underscore.version>
     </properties>
 
 </project>
diff --git a/xml-2/src/test/java/com/baeldung/xml/json2xml/JsonToXmlUnitTest.java b/xml-2/src/test/java/com/baeldung/xml/json2xml/JsonToXmlUnitTest.java
@@ -0,0 +1,77 @@
+package com.baeldung.xml.json2xml;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.SerializationFeature;
+import com.fasterxml.jackson.dataformat.xml.XmlMapper;
+import com.fasterxml.jackson.dataformat.xml.ser.ToXmlGenerator;
+import com.github.underscore.U;
+import org.json.JSONObject;
+import org.json.XML;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+public class JsonToXmlUnitTest {
+
+    @Test
+    public void givenJsonString_whenConvertToXMLUsingJsonJava_thenConverted() {
+        String jsonString = "{\"name\":\"John\", \"age\":20, \"address\":{\"street\":\"Wall Street\", \"city\":\"New York\"}}";
+        JSONObject jsonObject = new JSONObject(jsonString);
+        String xmlString = XML.toString(jsonObject);
+        Assertions.assertEquals("<address><city>New York</city><street>Wall Street</street></address><name>John</name><age>20</age>", xmlString);
+    }
+
+    @Test
+    public void givenJsonString_whenConvertToXMLUsingJackson_thenConverted() throws JsonProcessingException {
+        String jsonString = "{\"name\":\"John\", \"age\":20, \"address\":{\"street\":\"Wall Street\", \"city\":\"New York\"}}";
+        ObjectMapper objectMapper = new ObjectMapper();
+        JsonNode jsonNode = objectMapper.readTree(jsonString);
+        String xmlString = new XmlMapper().writeValueAsString(jsonNode);
+        Assertions.assertEquals("<ObjectNode><name>John</name><age>20</age><address><street>Wall Street</street><city>New York</city></address></ObjectNode>", xmlString);
+    }
+
+    @Test
+    public void givenJsonString_whenConvertToXMLUsingJacksonWithXMLDeclarationAndRoot_thenConverted() throws JsonProcessingException {
+        String jsonString = "{\"name\":\"John\", \"age\":20, \"address\":{\"street\":\"Wall Street\", \"city\":\"New York\"}}";
+        ObjectMapper objectMapper = new ObjectMapper();
+        JsonNode jsonNode = objectMapper.readTree(jsonString);
+        XmlMapper xmlMapper = new XmlMapper();
+        xmlMapper.configure(SerializationFeature.INDENT_OUTPUT, true);
+        xmlMapper.configure(ToXmlGenerator.Feature.WRITE_XML_DECLARATION, true);
+        xmlMapper.configure(ToXmlGenerator.Feature.WRITE_XML_1_1, true);
+        String xmlString = xmlMapper.writer().withRootName("root").withDefaultPrettyPrinter().writeValueAsString(jsonNode);
+        Assertions.assertEquals("<?xml version='1.1' encoding='UTF-8'?>\n" +
+                "<root>\n" +
+                "  <name>John</name>\n" +
+                "  <age>20</age>\n" +
+                "  <address>\n" +
+                "    <street>Wall Street</street>\n" +
+                "    <city>New York</city>\n" +
+                "  </address>\n" +
+                "</root>\n", xmlString);
+    }
+
+    @Test
+    public void givenJsonString_whenConvertToXMLUsingUnderscoreJava_thenConverted() {
+        String jsonString = "{\"name\":\"John\", \"age\":20}";
+        String xmlString = U.jsonToXml(jsonString);
+        Assertions.assertEquals("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
+                "<root>\n" +
+                "  <name>John</name>\n" +
+                "  <age number=\"true\">20</age>\n" +
+                "</root>", xmlString);
+    }
+
+    @Test
+    public void givenJsonString_whenConvertToXMLUsingUnderscoreJavaWithoutAttributes_thenConverted() {
+        String jsonString = "{\"name\":\"John\", \"age\":20}";
+        String xmlString = U.jsonToXml(jsonString, U.JsonToXmlMode.REMOVE_ATTRIBUTES);
+        Assertions.assertEquals("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
+                "<root>\n" +
+                "  <name>John</name>\n" +
+                "  <age>20</age>\n" +
+                "</root>", xmlString);
+    }
+}
+