Jackson Annotations 简明教程
Jackson Annotations - Disable
我们可以使用 disable() 函数禁用 ObjectMapper 的 jackson 注解。
Example - Disabling Annotation
import java.io.IOException;
import com.fasterxml.jackson.annotation.JsonIgnoreType;
import com.fasterxml.jackson.databind.MapperFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
public class JacksonTester {
public static void main(String args[]){
ObjectMapper mapper = new ObjectMapper();
try{
Student student = new Student(1,11,"1ab","Mark");
String jsonString = mapper
.writerWithDefaultPrettyPrinter()
.writeValueAsString(student);
System.out.println(jsonString);
ObjectMapper mapper1 = new ObjectMapper();
mapper1.disable(MapperFeature.USE_ANNOTATIONS);
jsonString = mapper1
.writerWithDefaultPrettyPrinter()
.writeValueAsString(student);
System.out.println(jsonString);
}
catch (IOException e) {
e.printStackTrace();
}
}
}
class Student {
public int id;
public String systemId;
public int rollNo;
public Name nameObj;
Student(int id, int rollNo, String systemId, String name){
this.id = id;
this.systemId = systemId;
this.rollNo = rollNo;
nameObj = new Name(name);
}
}
@JsonIgnoreType
class Name {
public String name;
Name(String name){
this.name = name;
}
}