jackson增加使用Jaxb Annotation的演示

examples/showcase/src/main/java/org/springside/examples/showcase/utilities/json/JsonDemo.java

@@ -9,6 +9,10 @@
 import java.util.Map;
 import java.util.Map.Entry;
 
+import javax.xml.bind.annotation.XmlElement;
+import javax.xml.bind.annotation.XmlTransient;
+import javax.xml.bind.annotation.XmlType;
+
 import org.joda.time.DateTime;
 import org.joda.time.format.DateTimeFormat;
 import org.junit.Test;
@@ -137,8 +141,8 @@ public void threeTypeInclusion() {
 		assertEquals("{\"name\":\"A\",\"defaultValue\":\"hello\",\"nullValue\":null}", normalMapper.toJson(bean));
 
 		//不打印nullValue属性
-		JsonMapper nonNullMapper = JsonMapper.nonEmptyMapper();
-		assertEquals("{\"name\":\"A\",\"defaultValue\":\"hello\"}", nonNullMapper.toJson(bean));
+		JsonMapper nonEmptyMapper = JsonMapper.nonEmptyMapper();
+		assertEquals("{\"name\":\"A\",\"defaultValue\":\"hello\"}", nonEmptyMapper.toJson(bean));
 
 		//不打印默认值未改变的nullValue与defaultValue属性
 		JsonMapper nonDefaultMaper = JsonMapper.nonDefaultMapper();
@@ -149,12 +153,24 @@ public void threeTypeInclusion() {
 	 * 测试类似Jaxb的常用annotaion，如properName，ignore，propertyOrder
 	 */
 	@Test
-	public void jaxbStyleAnnoation() {
+	public void jacksonAnnoation() {
 		TestBean2 testBean = new TestBean2(1, "foo", 18);
 		//结果name属性输出在前，且被改名为productName，且age属性被ignore
 		assertEquals("{\"productName\":\"foo\",\"id\":1}", mapper.toJson(testBean));
 	}
 
+	/*
+	 * 测试直接使用Jaxb的annotaion
+	 */
+	@Test
+	public void jaxbAnnoation() {
+		JsonMapper newMapper = new JsonMapper();
+		newMapper.enableJaxbAnnotation();
+		TestBean3 testBean = new TestBean3(1, "foo", 18);
+		//结果name属性输出在前，且被改名为productName，且age属性被ignore
+		assertEquals("{\"productName\":\"foo\",\"id\":1}", newMapper.toJson(testBean));
+	}
+
 	//调转顺序
 	@JsonPropertyOrder({ "name", "id" })
 	public static class TestBean2 {
@@ -179,6 +195,30 @@ public TestBean2(long id, String name, int age) {
 
 	}
 
+	//调转顺序
+	@XmlType(propOrder = { "name", "id" })
+	public static class TestBean3 {
+
+		public long id;
+
+		@XmlElement(name = "productName")
+		public String name;
+
+		@XmlTransient
+		public int age;
+
+		public TestBean3() {
+
+		}
+
+		public TestBean3(long id, String name, int age) {
+			this.id = id;
+			this.name = name;
+			this.age = age;
+		}
+
+	}
+
 	/**
 	 * 更新一個已存在Bean，JSON字符串裡只含有Bean的部分屬性，只覆蓋这部分的屬性.
 	 */

modules/core/pom.xml

@@ -13,7 +13,6 @@
 	<name>Springside :: Module :: Core</name>
 
 	<dependencies>
-
 		<!-- PERSISTENCE begin -->
 		<dependency>
 			<groupId>org.hibernate</groupId>
@@ -69,6 +68,10 @@
 			<artifactId>jackson-databind</artifactId>
 			<optional>true</optional>
 		</dependency>
+		<dependency>
+		  <groupId>com.fasterxml.jackson.module</groupId>
+		  <artifactId>jackson-module-jaxb-annotations</artifactId>
+		</dependency>
 		<dependency>
 			<groupId>net.sf.dozer</groupId>
 			<artifactId>dozer</artifactId>
@@ -98,7 +101,6 @@
 			<artifactId>jcl-over-slf4j</artifactId>
 			<optional>true</optional>
 		</dependency>
-
 		<dependency>
 			<groupId>org.slf4j</groupId>
 			<artifactId>slf4j-log4j12</artifactId>

modules/core/src/main/java/org/springside/modules/mapper/JsonMapper.java

@@ -18,6 +18,7 @@
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.SerializationFeature;
 import com.fasterxml.jackson.databind.util.JSONPObject;
+import com.fasterxml.jackson.module.jaxb.JaxbAnnotationModule;
 
 /**
  * 简单封装Jackson，实现JSON String<->Java Object的Mapper.
@@ -33,13 +34,15 @@ public class JsonMapper {
 	private ObjectMapper mapper;
 
 	public JsonMapper() {
-		this(Include.ALWAYS);
+		this(null);
 	}
 
 	public JsonMapper(Include include) {
 		mapper = new ObjectMapper();
 		//设置输出时包含属性的风格
-		mapper.setSerializationInclusion(include);
+		if (include != null) {
+			mapper.setSerializationInclusion(include);
+		}
 		//设置输入时忽略在JSON字符串中存在但Java对象实际没有的属性
 		mapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
 	}
@@ -152,6 +155,15 @@ public void enableEnumUseToString() {
 		mapper.enable(DeserializationFeature.READ_ENUMS_USING_TO_STRING);
 	}
 
+	/**
+	 * 支持使用Jaxb的Annotation，使得POJO上的annotation不用与Jackson耦合。
+	 * 默认会先查找jaxb的annotation，如果找不到再找jackson的。
+	 */
+	public void enableJaxbAnnotation() {
+		JaxbAnnotationModule module = new JaxbAnnotationModule();
+		mapper.registerModule(module);
+	}
+
 	/**
 	 * 取出Mapper做进一步的设置或使用其他序列化API.
 	 */

modules/extension/pom.xml

@@ -48,6 +48,11 @@
 			<artifactId>slf4j-api</artifactId>
 			<optional>true</optional>
 		</dependency>
+		<dependency>
+			<groupId>org.slf4j</groupId>
+			<artifactId>jcl-over-slf4j</artifactId>
+			<optional>true</optional>
+		</dependency>
 		<dependency>
 			<groupId>org.slf4j</groupId>
 			<artifactId>slf4j-log4j12</artifactId>

pom.xml

@@ -548,6 +548,11 @@
 				<artifactId>jackson-databind</artifactId>
 				<version>${jackson.version}</version>
 			</dependency>
+			<dependency>
+				<groupId>com.fasterxml.jackson.module</groupId>
+				<artifactId>jackson-module-jaxb-annotations</artifactId>
+				<version>${jackson.version}</version>
+			</dependency>
 			<dependency>
 				<groupId>com.fasterxml.jackson.jaxrs</groupId>
 				<artifactId>jackson-jaxrs-json-provider</artifactId>