Spring MVC集成Jackson序列化对象非常方便,省去了自己手工映射的麻烦。
其实单独使用Jackson也是非常的方便
-
public class Test {
-
private static ObjectMapper MAPPER = new ObjectMapper();
-
-
static {
-
MAPPER.getSerializationConfig().withSerializationInclusion(Inclusion.NON_NULL);
-
}
-
-
private static String toJSON(Object obj) throws JsonGenerationException, JsonMappingException, IOException {
-
String json = MAPPER.writeValueAsString(obj);
-
System.out.println(json);
-
return json;
-
}
-
-
private static void toMap(String json) throws JsonParseException, JsonMappingException, IOException {
-
Map map = MAPPER.readValue(json, HashMap.class);
-
System.out.println(map);
-
}
-
-
public static void main(String[] args) throws JsonGenerationException, JsonMappingException, IOException {
-
Person p = new Person();
-
p.setId(1);
-
p.setName("edmond");
-
String json = toJSON(p);
-
toMap(json);
-
}
-
}
-
-
class Person {
-
private int id;
-
private String name;
-
private int age = 10;
-
-
public int getId() {
-
return id;
-
}
-
-
public void setId(int id) {
-
this.id = id;
-
}
-
-
public String getName() {
-
return name;
-
}
-
-
public void setName(String name) {
-
this.name = name;
-
}
-
-
}
结果:
{"id":1,"name":"edmond"}
{id=1, name=edmond}
Jackson使用getter、setter的名称作为json的key名称。
来自 “ ITPUB博客 ” ,链接:https://blog.itpub.net/29254281/viewspace-1133599/
,如需转载,请注明出处,否则将追究法律责任。