fastJson注解@JSONField使用的一个实例

package jsonArrayjsonObject.cn;import java.io.Serializable;import java.util.Date;import com.alibaba.fastjson.annotation.JSONField;import com.alibaba.fastjson.serializer.SerializerFeature;public class User implements Serializable{ ???private static final long serialVersionUID = 1L; ???// 配置序列化和反序列化的顺序，1.2.42以上版本支持。默认是以fieldName的字母序进行序列化的 ???@JSONField(ordinal = 0) ???private Long id; ???????@JSONField(ordinal = 1, name = "na") ???private String name; ???????// 序列化与反序列化，默认均为true ???@JSONField(ordinal = 2, serialize = false, deserialize = false) ???private Integer age; ???????// 默认序列化规则是当字段值为null时，是不序列化该字段的。当设置规则后，value为null时，依然会把它的值序列化出来 ???@JSONField(ordinal = 3, serialzeFeatures = SerializerFeature.WriteMapNullValue) ???private String address; ???????// 指定时间格式 ???@JSONField(ordinal = 4, format = "yyyy-MM-dd ?HH:mm:ss") ???private Date birthDate; ???public Long getId() { ???????return id; ???} ???public void setId(Long id) { ???????this.id = id; ???} ???public String getName() { ???????return name; ???} ???public void setName(String name) { ???????this.name = name; ???} ???public Integer getAge() { ???????return age; ???} ???public void setAge(Integer age) { ???????this.age = age; ???} ???public String getAddress() { ???????return address; ???} ???public void setAddress(String address) { ???????this.address = address; ???} ???public Date getBirthDate() { ???????return birthDate; ???} ???public void setBirthDate(Date birthDate) { ???????this.birthDate = birthDate; ???} ???}

package jsonArrayjsonObject.cn;import java.util.Date;import com.alibaba.fastjson.JSON;import com.alibaba.fastjson.serializer.SimplePropertyPreFilter;public class Test { ???public static void main(String[] args) { ???????test1(); ???} ???????// 测试SimplePropertyPreFilter 和 JsonField 注解 ???static void test1(){ ???????User user = new User(); ???????user.setId(1L); ???????user.setAge(12); ???????user.setName("zhangsan"); ???????user.setBirthDate(new Date()); ???????????????SimplePropertyPreFilter filter = new SimplePropertyPreFilter(User.class, "na", "address"); ???????????????String jsonString1 = JSON.toJSONString(user); ???????String jsonString2 = JSON.toJSONString(user, filter); ???????System.out.println(jsonString1); ???????System.out.println(jsonString2); ???}}

{"id":1,"na":"zhangsan","address":null,"birthDate":"2018-01-08 ?14:24:28"}{"na":"zhangsan","address":null}