MongoTemplate翻译Java Aggregate

[陆贝伊]

如下Mongo语句如何转换为Java，求大牛解答

db.order_report.aggregate([{
    "$match": {
        "userId": 2
    }
}, {
    
    "$unwind": "$content"
}, {
    "$project": {
        "userId": 1,
        "createTime": 1,
        "content": [
            {
                "pageId": "$content.pageId",
                "sop2": {
                    "send": {
                        "$sum": "$content.sop2.send"
                    },
                    "read": {
                        "$sum": "$content.sop2.read"
                    },
                    "delivery": {
                        "$sum": "$content.sop2.delivery"
                    },
                    "orderCount": {
                        "$sum": "$content.sop2.orderCount"
                    }
                },
                "workFlow": {
                    "send": {
                        "$sum": "$content.workFlow.send"
                    },
                    "read": {
                        "$sum": "$content.workFlow.read"
                    },
                    "delivery": {
                        "$sum": "$content.workFlow.delivery"
                    },
                    "orderCount": {
                        "$sum": "$content.workFlow.orderCount"
                    }
                },
                "broadcast": {
                    "send": {
                        "$sum": "$content.broadcast.send"
                    },
                    "read": {
                        "$sum": "$content.broadcast.read"
                    },
                    "delivery": {
                        "$sum": "$content.broadcast.delivery"
                    },
                    "orderCount": {
                        "$sum": "$content.broadcast.orderCount"
                    }
                }
            }
        ]
    }
}, {
    "$unwind": "$content"
}, {
    "$group": {
        "_id": {
            "createTime": "$createTime",
            "userId": "$userId"
        },
        "content": {
            "$push": "$content"
        },
        
    }
}, {
    "$project": {
        "_id": false,
        "userId": "$_id.userId",
        "createTime": "$_id.createTime",
        "content": "$content"
    }
}])