– Start

点击此处观看本系列配套视频。

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我们也可以使用 Map 存储 JSON， 而不用创建对应的对象。

package shangbo.jackson.demo16; import java.util.HashMap; import java.util.Map; import org.apache.commons.lang3.builder.ToStringBuilder; import com.fasterxml.jackson.annotation.JsonAnyGetter; import com.fasterxml.jackson.annotation.JsonAnySetter; public class Person { private Map<String, Object> properties = new HashMap<>(); @JsonAnySetter public void set(String fieldName, Object val) { this.properties.put(fieldName, val); } @JsonAnyGetter public Object get(String fieldName) { return this.properties.get(fieldName); } public String toString() { return ToStringBuilder.reflectionToString(this); } } package shangbo.jackson.demo16; import com.fasterxml.jackson.databind.ObjectMapper; public class App { public static void main(String[] args) throws Exception { // 实例化 ObjectMapper 对象 ObjectMapper objectMapper = new ObjectMapper(); // json 消息 String json = "{\"firstname\":\"Bo\",\"lastname\":\"Shang\"}"; // 将 json 转成对象 Person shangbo = objectMapper.readValue(json, Person.class); System.out.println(shangbo); } }

– 更多参见：Jackson 精萃 – 声 明：转载请注明出处 – Last Updated on 2019-05-26 – Written by ShangBo on 2019-05-26 – End