mongodb如何在java中运行mongodb dbStats命令？

Question

我使用以下代码运行mongodb dbStats命令以获取数据库的更多详细信息：

public static void main(String[] args) {
    MongoClient mongoClient = new MongoClient("127.0.0.1", 27017);
    MongoIterable<String> databases = mongoClient.listDatabaseNames();
    for (String dbName : databases) {
        System.out.println("- Database: " + dbName);
        MongoDatabase db = mongoClient.getDatabase(dbName);
        Document result = db.runCommand(new Document("dbStats", "1"));
        // read required database details
    }
    mongoClient.close();
}

这是基于MogoDB文档（https://docs.mongodb.com/manual/reference/command/dbStats/）的，它应该可以正常工作，但会引发异常：

Command failed with error 73 (InvalidNamespace): 'Invalid db name: dbname.1' on server 127.0.0.1:27017. The full response is {....}

Answer 1

谢谢ernest_k，这是粗心的，所以这是有效的：

db.runCommand(new Document("dbStats", 1))