Question

我知道它是关于循环引用的。但我无法找到代码中的错误。以下是完整的错误消息：

TypeError: Converting circular structure to JSON
at Object.stringify (native)
at Object.DataModel.getDataData (/root/Rhythm-LvDong-Release/models/dataModel.class.js:46:26)
at SocketController.handle (/root/Rhythm-LvDong-Release/controllers/socketController.class.js:647:59)
at Object.SocketRouter.router (/root/Rhythm-LvDong-Release/routes/socketRouter.js:25:28)
at Socket.<anonymous> (/root/Rhythm-LvDong-Release/app.js:190:22)
at Socket.emit (events.js:107:17)
at onReceivePackData (/root/Rhythm-LvDong-Release/app.js:244:24)
at Socket.<anonymous> (/root/Rhythm-LvDong-Release/app.js:154:9)
at Socket.emit (events.js:107:17)
at readableAddChunk (_stream_readable.js:163:16)
/root/Rhythm-LvDong-Release/models/dataModel.class.js:45
    console.log("TESTCASE1:" + detail);

以下是代码：第一：dataModel.class.js：46：26

getDataData: function (dataType, detail) {
    var data = {};
    data.type = 'data';
    data.content = {};
    data.content.dataType = dataType;
    if (detail == 0) {
        data.content.detail = 0;
    } else {
        data.content.detail = (detail || {});
    }
    console.log("TESTCASE1:" + detail);
    console.log(JSON.stringify(data));//46th line
    return JSON.stringify(data);
};

第二：socketController.class.js：647：59

var room = GetRoom(socket.roomId);
if (room == null)
    break;
if (!SendMessage(socket.userId, DataModel.getDataData('RefreshRoom', room))) {//the 647th line
}

然后我调用了一些函数：

//SendMessage
function SendMessage(userId, message)
{
    if (!streamSockets[userId])
        return false;
    streamSockets[userId].send(message);
    return true;
}
//GetRoom
function GetRoom(roomId)
{
    var room = null;
    if (roomId >= 0) {
        for (var i in RoomList) {
            if (roomId == RoomList[i].id) {
                room = RoomList[i];
                break;
            }
        }
    }
    return room;
}

请帮我查一下我的代码有什么问题。

Answer 1

更改行：

    data.content.detail = (detail || {});

为：

    data.content.detail = detail || {};

我之前被类似的括号问题抓住了

Node.js：TypeError：将循环结构转换为JSON

1 个答案: