异常教程
比较 JSON API Gson 和 Jackson
💡一则或许对你有用的小广告
欢迎加入小哈的星球 ，你将获得：专属的项目实战 / 1v1 提问 / Java 学习路线 / 学习打卡 / 每月赠书 / 社群讨论
- 新项目:《从零手撸：仿小红书（微服务架构）》 正在持续爆肝中，基于
Spring Cloud Alibaba + Spring Boot 3.x + JDK 17...，点击查看项目介绍 ;- 《从零手撸：前后端分离博客项目（全栈开发）》 2 期已完结，演示链接： http://116.62.199.48/ ;
截止目前， 星球 内专栏累计输出 82w+ 字，讲解图 3441+ 张，还在持续爆肝中.. 后续还会上新更多项目，目标是将 Java 领域典型的项目都整一波，如秒杀系统, 在线商城, IM 即时通讯，权限管理，Spring Cloud Alibaba 微服务等等，已有 2800+ 小伙伴加入学习 ，欢迎点击围观
在这篇文章中，我们将从性能的角度比较两个著名的 JSON 特定 API，即 Gson 和 Jackson：
代码
包装纸
此类用于转换为 JSON
public class MeasurementRecord {
private String measurementId;
private long duration;
private long time;
private MeasurementType type=MeasurementType.METHOD_CALL;
/**
*
- @param measurementId
- @param duration
- @param time
- @param type
*/
public MeasurementRecord(String measurementId, long duration, long time,
MeasurementType type) {
super();
this.measurementId = measurementId;
this.duration = duration;
this.time = time;
this.type = type;
}
//getters and setters
}
public enum MeasurementType {
WEB_REQUEST,SQL,EXCEPTION,METHOD_CALL
}
创建列表的代码
public class MeasurementRecord {
private String measurementId;
private long duration;
private long time;
private MeasurementType type=MeasurementType.METHOD_CALL;
/**
*
- @param measurementId
- @param duration
- @param time
- @param type
*/
public MeasurementRecord(String measurementId, long duration, long time,
MeasurementType type) {
super();
this.measurementId = measurementId;
this.duration = duration;
this.time = time;
this.type = type;
}
//getters and setters
}
public enum MeasurementType {
WEB_REQUEST,SQL,EXCEPTION,METHOD_CALL
}
杰克逊API
public class MeasurementRecord {
private String measurementId;
private long duration;
private long time;
private MeasurementType type=MeasurementType.METHOD_CALL;
/**
*
- @param measurementId
- @param duration
- @param time
- @param type
*/
public MeasurementRecord(String measurementId, long duration, long time,
MeasurementType type) {
super();
this.measurementId = measurementId;
this.duration = duration;
this.time = time;
this.type = type;
}
//getters and setters
}
public enum MeasurementType {
WEB_REQUEST,SQL,EXCEPTION,METHOD_CALL
}
开发者接口
public class MeasurementRecord {
private String measurementId;
private long duration;
private long time;
private MeasurementType type=MeasurementType.METHOD_CALL;
/**
*
- @param measurementId
- @param duration
- @param time
- @param type
*/
public MeasurementRecord(String measurementId, long duration, long time,
MeasurementType type) {
super();
this.measurementId = measurementId;
this.duration = duration;
this.time = time;
this.type = type;
}
//getters and setters
}
public enum MeasurementType {
WEB_REQUEST,SQL,EXCEPTION,METHOD_CALL
}
结果
结论
对于中小型列表的转换，与 Jackson 相比，Gson 提供了更好的响应。对于大型列表，Jackson 提供了比 Gson 更好的响应。基于这一结果，我们可以得出结论，为了将中小型列表转换为 JSON，可以使用 Gson 以获得更好的性能。