技术咨询：如何将JSON Array（数组）转换为Map？

嘿，我来帮你搞定这个JSON数组转Map的问题！首先得看你用的是哪种编程语言，我给你几个主流语言的实现方式：

Java 实现 #

Java里常用Jackson或Gson这两个JSON处理库来完成转换，这里给你两种方案：

用Jackson库 #

首先确保你的项目引入了Jackson依赖（比如Maven），然后代码示例如下：

import com.fasterxml.jackson.databind.ObjectMapper;
import java.util.List;
import java.util.Map;

public class JsonToMapConverter {
    public static void main(String[] args) throws Exception {
        // 注意：先把你提供的JSON格式修正（原内容里的key没有引号，是不标准的JSON，要先补全）
        String jsonArray = "[{\"redirectCount\":0,\"encodedBodySize\":60962,\"unloadEventEnd\":0,\"responseEnd\":1601.699999999255,\"domainLookupEnd\":995.7999999896856,\"unloadEventStart\":0,\"domContentLoadedEventStart\":1970.3999999910593,\"type\":\"navigate\",\"decodedBodySize\":215675,\"duration\":3103.799999997136,\"redirectStart\":0,\"connectEnd\":1357.1999999985565,\"requestStart\":1359.599999996135,\"startTime\":0,\"fetchStart\":1598.6999999877298,\"serverTiming\":[],\"domContentLoadedEventEnd\":1981.999}]";
        
        ObjectMapper objectMapper = new ObjectMapper();
        // 将JSON数组解析为List<Map>，每个数组元素对应一个Map
        List<Map<String, Object>> mapList = objectMapper.readValue(jsonArray, List.class);
        // 取数组中的第一个元素，就是你要的Map
        Map<String, Object> resultMap = mapList.get(0);
        
        // 打印验证转换结果
        resultMap.forEach((key, value) -> System.out.println(key + ": " + value));
    }
}

用Gson库 #

如果习惯用Gson，代码逻辑类似：

import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;
import java.util.List;
import java.util.Map;

public class GsonJsonConverter {
    public static void main(String[] args) {
        String jsonArray = "[{\"redirectCount\":0,\"encodedBodySize\":60962,\"unloadEventEnd\":0,\"responseEnd\":1601.699999999255,\"domainLookupEnd\":995.7999999896856,\"unloadEventStart\":0,\"domContentLoadedEventStart\":1970.3999999910593,\"type\":\"navigate\",\"decodedBodySize\":215675,\"duration\":3103.799999997136,\"redirectStart\":0,\"connectEnd\":1357.1999999985565,\"requestStart\":1359.599999996135,\"startTime\":0,\"fetchStart\":1598.6999999877298,\"serverTiming\":[],\"domContentLoadedEventEnd\":1981.999}]";
        
        Gson gson = new Gson();
        // 通过TypeToken指定泛型类型，避免类型擦除问题
        List<Map<String, Object>> mapList = gson.fromJson(jsonArray, new TypeToken<List<Map<String, Object>>>(){}.getType());
        Map<String, Object> resultMap = mapList.get(0);
    }
}

Python 实现 #

Python自带的json模块就能轻松搞定，不需要额外安装依赖：

import json

# 修正后的标准JSON字符串
json_array = '''[{"redirectCount":0,"encodedBodySize":60962,"unloadEventEnd":0,"responseEnd":1601.699999999255,"domainLookupEnd":995.7999999896856,"unloadEventStart":0,"domContentLoadedEventStart":1970.3999999910593,"type":"navigate","decodedBodySize":215675,"duration":3103.799999997136,"redirectStart":0,"connectEnd":1357.1999999985565,"requestStart":1359.599999996135,"startTime":0,"fetchStart":1598.6999999877298,"serverTiming":[],"domContentLoadedEventEnd":1981.999}]'''

# 解析JSON数组为Python列表，取第一个元素就是字典（相当于Python里的Map）
result_map = json.loads(json_array)[0]

# 打印验证
print(result_map)
# 可以通过键直接取值
print(result_map["type"])  # 输出: navigate

JavaScript/Node.js 实现 #

JS里JSON和对象的转换非常直观，如果你需要ES6标准的Map对象也可以快速转换：

// 标准JSON字符串
const jsonArray = '[{"redirectCount":0,"encodedBodySize":60962,"unloadEventEnd":0,"responseEnd":1601.699999999255,"domainLookupEnd":995.7999999896856,"unloadEventStart":0,"domContentLoadedEventStart":1970.3999999910593,"type":"navigate","decodedBodySize":215675,"duration":3103.799999997136,"redirectStart":0,"connectEnd":1357.1999999985565,"requestStart":1359.599999996135,"startTime":0,"fetchStart":1598.6999999877298,"serverTiming":[],"domContentLoadedEventEnd":1981.999}]';

// 解析为JS数组，第一个元素是普通对象（可以当作Map使用）
const resultObj = JSON.parse(jsonArray)[0];

// 如果需要转换成ES6的Map类型：
const es6Map = new Map(Object.entries(resultObj));

// 验证
console.log(resultObj.type); // 输出: navigate
console.log(es6Map.get("duration")); // 输出: 3103.799999997136

注意：你提供的原始内容不是标准JSON（key没有加双引号），转换前一定要先修正为标准JSON格式，否则所有解析库都会报错哦！

内容的提问来源于stack exchange，提问作者undetected Selenium