JSON（JavaScript 对象表示法）

JSON 是一种轻量级数据交换格式，人类易于读写，机器易于解析和生成。它是现代应用中 Web API、配置文件和数据存储的主流格式。

MIME 类型

application/json

类型

文本

压缩

无损

优点

+ Human-readable and writable with minimal syntax
+ Native parsing in every programming language
+ Dominant format for REST APIs and web services
+ Lightweight — less verbose than XML

缺点

− No comment syntax — cannot annotate configuration files
− No native date, binary, or schema types
− Trailing commas cause parse errors in strict parsers

何时使用 .JSON

在 API 响应、配置文件、服务间数据交换以及任何需要人类可读的结构化数据场景中使用 JSON。

技术细节

JSON 支持六种数据类型：字符串、数字、布尔值、null、数组和对象（键值对映射）。它使用 UTF-8 编码，原生不支持注释、日期或二进制数据。

历史

Douglas Crockford 在 2000 年代初推广了 JSON，它源自 JavaScript 对象字面量语法。JSON 于 2013 年标准化为 ECMA-404，2017 年标准化为 RFC 8259，成为通用的 API 数据格式。

从 .JSON 转换

.json → .arrow .json → .avro .json → .bson .json → .c .json → .cpp .json → .css .json → .csv .json → .geojson .json → .go .json → .gpx .json → .hdf5 .json → .html .json → .ics .json → .java .json → .js .json → .jsx .json → .kml .json → .md .json → .msgpack .json → .ndjson .json → .ods .json → .parquet .json → .protobuf .json → .py .json → .rs .json → .sql .json → .sqlite .json → .toml .json → .ts .json → .tsv .json → .tsx .json → .vcf .json → .xlsx .json → .xml .json → .yaml .json → .yml

转换为 .JSON

.arrow → .json .avro → .json .bson → .json .c → .json .cpp → .json .css → .json .csv → .json .geojson → .json .go → .json .gpx → .json .hdf5 → .json .html → .json .ics → .json .java → .json .js → .json .jsx → .json .kml → .json .md → .json .msgpack → .json .ndjson → .json .ods → .json .parquet → .json .protobuf → .json .py → .json .rs → .json .sql → .json .sqlite → .json .toml → .json .ts → .json .tsv → .json .tsx → .json .vcf → .json .xlsx → .json .xml → .json .yaml → .json .yml → .json

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使用场景

T Converting Legacy Data Formats for System Migration T Formatting JSON API Responses for Debug Analysis

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