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Troy / xjsonkit

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超轻量级 JSON / JSONB / XML / YAML正序列化反序列化门面框架,让业务代码不依赖具体的实现,与 Jackson、Gson、Fastjson 等 解耦,让你可以在需要的时候轻松切换项目底层实现!


API 依赖

implementation 'cn.zhxu:xjsonkit-api:1.4.3'

该依赖提供了 JsonKitJsonbKitXmlKitYamlKit 四个工具类,它们分别提供了对 JSON / JSONB / XML / YAML 类型数据的正反序列化操作相关的 API。

JSON 相关实现

// Fastjson 实现
implementation 'cn.zhxu:xjsonkit-fastjson:1.4.3'
// Fastjson2 实现
implementation 'cn.zhxu:xjsonkit-fastjson2:1.4.3'
// Gson 实现
implementation 'cn.zhxu:xjsonkit-gson:1.4.3'
// Jackson 实现
implementation 'cn.zhxu:xjsonkit-jackson:1.4.3'
// Snack3 实现
implementation 'cn.zhxu:xjsonkit-snack3:1.4.3'

JSONB 相关实现

// Fastjson2-JSONB 实现
implementation 'cn.zhxu:xjsonkit-fastjson2-jsonb:1.4.3'

XML 相关实现

// Jackson Xml
implementation 'cn.zhxu:xjsonkit-jackson-xml:1.4.3'

YAML 相关实现

// Jackson Yaml
implementation 'cn.zhxu:xjsonkit-jackson-yaml:1.4.3'


xJsonKit 共提供了 JsonKitJsonbKitXmlKitYamlKit 四个工具类。下文以 JsonKit 为例简述其用法,其它工具类使用方法类似。

反序列化 toMapper

String json = "{\"name\":\"Jack\",\"age\":20}";
// 转换为具有映射结构的 Mapper 对象
Mapper mapper = JsonKit.toMapper(json);

// 第一层的键集合大小
int size = mapper.size();               // 2
// 第一层的键值集合
Set<String> keys = mapper.keySet();     // ["name", "age"]
// 按键名访问 String 属性
String name = mapper.getString("name"); // Jack
// 按键名访问 int 属性
int age = mapper.getInt("age");         // 20
// 遍历 Mapper 对象
mapper.forEach((key, data) -> {
    System.out.println(key);            // 依次输出 name 和 age
    System.out.println(data);           // 依次输出 Jack 和 20

System.out.println(mapper);             // 输出 {"name":"Jack","age":20}

反序列化 toArray

String json = "[20,{\"name\":\"Jack\"},\"JsonKit\"]";
// 转换为具有数组结构的 Array 对象
Array array = JsonKit.toArray(json);

// 数组大小
int size = array.size();                // 3
// 按下标获取 int 数据
int value = array.getInt(0);            // 20
// 按下标获取 Mapper 数据
Mapper mapper = array.getMapper(1);     // {"name":"Jack"}
// 按下标获取 String 数据
String string = array.getString(2);     // JsonKit

// 遍历 Array 对象
array.forEach(((index, data) -> {
    System.out.println(index);          // 依次输出 0、 1 和 2
    System.out.println(data);           // 依次输出 20、 {"name":"Jack"} 和 JsonKit

System.out.println(array);              // 输出 [20,{"name":"Jack"},"JsonKit"]

反序列化 toBean

String json = "{\"name\":\"Jack\",\"age\":20}";
// 根据类型 转换为 Java Bean
User user = JsonKit.toBean(User.class, json);

String name = user.getName();           // Jack
int name = user.getAge();               // 20

反序列化 toList

String json = "[{\"name\":\"Jack\",\"age\":20}, {\"name\":\"Tom\",\"age\":21}]";
// 根据类型 转换为 Java List
List<User> list = JsonKit.toList(User.class, json);

int size = list.size();                 // 2
User user1 = list.get(0);               // {"name":"Jack","age":20}
User user2 = list.get(1);               // {"name":"Tom","age":21}

正序列化 toJson

User user = new User();

String json = JsonKit.toJson(user);     // 转换为 JSON 字符串

System.out.println(json);               // 输出 {"age":20,"name":"Jack"}


如果已经添加了如 xjsonkit-jackson 的底层实现包,则不用任何配置即可正常使用。

但如果需要特殊配置,例如使用 Jackson 时,可进行如下配置:

ObjectMapper objectMapper = new ObjectMapper();
// TODO: 对 ObjectMapper 进行配置...

// 对 JsonKit 进行配置
Config.json(new JacksonDataConvertor(ObjectMapper));

其中 Configcn.zhxu.xjson.spi 包下的配置类,它里面有 json(..)jsonb(..)xml(..)yaml(..) 四个配置方法,它们分别作用于 JsonKitJsonbKitXmlKitYamlKit 四个工具类。


只需实现 DataConvertor 接口即可:

// 自定义 JSON 实现
Config.json(new MyJsonDataConvertor());
// 自定义 JSONB 实现
Config.jsonb(new MyJsonbDataConvertor());
// 自定义 XML 实现
Config.xml(new MyXmlDataConvertor());
// 自定义 YAML 实现
Config.yaml(new MyYamlDataConvertor());


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超轻量级 JSON / JSONB / XML / YAML 解析门面 API,用法简单,使业务代码不依赖具体实现,解耦神器! expand collapse

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