在 JsonPath 中，.. 操作符用于深度扫描，可以在任何需要的地方使用。
Java 示例：
package com.hxstrive.json_path.operators;
import com.jayway.jsonpath.JsonPath;
/**
* .. 符号
* @author hxstrive.com
*/
public class OperatorsDemo04 {
public static void main(String[] args) {
String json = "{" +
" \"store\": {" +
" \"book\": [" +
" {" +
" \"category\": \"reference\"," +
" \"author\": \"Nigel Rees\"," +
" \"title\": \"Sayings of the Century\"," +
" \"price\": 8.95" +
" }," +
" {" +
" \"category\": \"fiction\"," +
" \"author\": \"Evelyn Waugh\"," +
" \"title\": \"Sword of Honour\"," +
" \"price\": 12.99" +
" }," +
" {" +
" \"category\": \"fiction\"," +
" \"author\": \"Herman Melville\"," +
" \"title\": \"Moby Dick\"," +
" \"isbn\": \"0-553-21311-3\"," +
" \"price\": 8.99" +
" }," +
" {" +
" \"category\": \"fiction\"," +
" \"author\": \"J. R. R. Tolkien\"," +
" \"title\": \"The Lord of the Rings\"," +
" \"isbn\": \"0-395-19395-8\"," +
" \"price\": 22.99" +
" }" +
" ]," +
" \"bicycle\": {" +
" \"color\": \"red\"," +
" \"price\": 19.95" +
" }" +
" }," +
" \"expensive\": 10" +
"}";
Object obj = JsonPath.read(json, "$..color");
System.out.println(obj);
obj = JsonPath.read(json, "$..price");
System.out.println(obj);
}
}运行示例，输出如下：
["red"] [8.95,12.99,8.99,22.99,19.95]
上述代码中，“$..color”JsonPath 将逐层扫描 JSON 字符串，找到所有的 color 字段。而“$..price”JsonPath 将找到所有 price 字段，不管位于第几层。
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