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Tencent / rapidjson

A fast JSON parser/generator for C++ with both SAX/DOM style API
http://rapidjson.org/
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Question : When getting secondary level value, it returns error: Expression:IsObject #1880

Closed wwdok closed 3 years ago

wwdok commented 3 years ago

Error is : image

I want to parse following json:

{
    "code":200,
    "message":"Success",
    "data":[
        {
            "masterComputer":{
                "id":8,
                "cuid":"4efbc2ec-efe4-4f59-a7a4-1abc735e485b",
                "name":"Pactera",
                "mac":"C0-3E-BA-7D-E6-01",
                "ip":"192.168.53.101",
                "osType":"Windows 10",
                "status":0,
                "registerTime":"2021-04-26T03:11:03.000+00:00",
                "disconnectTime":null,
                "nickName":null
            },
            "deviceInfos":[
                {
                    "id":10,
                    "duid":"8fed50d3-ed2e-4575-acd5-ebf4797fa5ec",
                    "sn":"AFFBB20B20900472",
                    "name":null,
                    "model":"KRJ-W09",
                    "brand":"HONOR",
                    "platform":0,
                    "cpuAbi":"arm64-v8a",
                    "sdkVersion":29,
                    "status":0,
                    "height":2000,
                    "width":1200,
                    "registerTime":"2021-04-26 13:12:53",
                    "disconnectTime":"2021-04-26 15:03:23",
                    "iconIndex":null,
                    "masterComputerId":8,
                    "userId":null,
                    "masterUid":46,
                    "userName":null,
                    "taskId":null,
                    "taskUserId":null,
                    "taskUserName":null,
                    "nickName":null,
                    "dbcFileCid":null,
                    "dbcFileName":null,
                    "canCode":"0_0",
                    "cuid":"4efbc2ec-efe4-4f59-a7a4-1abc735e485b",
                    "canState":2
                },
                {
                    "id":3,
                    "duid":"55555555-c016-4edf-8191-711a4672567a",
                    "sn":"192.168.53.55:5555",
                    "name":null,
                    "model":"jacinto6evm",
                    "brand":"Android",
                    "platform":0,
...

The code is : image

I find if i only parse the first level, it works, but if i parse the secondary level, it will not work. I am not familiar with rapidjson, i just write such code with my intuitive

miloyip commented 3 years ago

Note that data is a JSON array. To access to first element in the array, use document["data"][0]["deviceInfos"].

wwdok commented 3 years ago

Oh, I was so negligent at that time, you are right, thank you !