MongoDB查询来存储文件名和位置？
要存储，让我们看一个示例并创建包含文档的集合-
> db.demo645.insertOne(
... {
... 'fileName' : 'MongoDB Program',
... 'fileLocation':'C:/users/workspace/AllMongoDBProgram/MongoDB Program'
... }
... );
{
"acknowledged" : true,
"insertedId" : ObjectId("5e9c78f36c954c74be91e6e8")
}
>
> db.demo645.insertOne(
... {
... 'fileName' : 'SumOfTwoNumbers.java',
... 'fileLocation':'E:/eclipseWorkspace/AllJavaPrograms/SumOfTwoNumbers.java'
... }
... );
{
"acknowledged" : true,
"insertedId" : ObjectId("5e9c78f36c954c74be91e6e9")
}
> db.demo645.insertOne(
... {
... 'fileName' : 'Script.sql',
... 'fileLocation':'C:/MySQLQuery/Script.sql'
... }
... );
{
"acknowledged" : true,
"insertedId" : ObjectId("5e9c78f46c954c74be91e6ea")
}在find()方法的帮助下显示集合中的所有文档-
> db.demo645.find();
这将产生以下输出-
{ "_id" : ObjectId("5e9c78f36c954c74be91e6e8"), "fileName" : "MongoDB Program", "fileLocation" : "C:/users/workspace/AllMongoDBProgram/MongoDB Program" }
{ "_id" : ObjectId("5e9c78f36c954c74be91e6e9"), "fileName" : "SumOfTwoNumbers.java", "fileLocation" : "E:/eclipseWorkspace/AllJavaPrograms/SumOfTwoNumbers.java" }
{ "_id" : ObjectId("5e9c78f46c954c74be91e6ea"), "fileName" : "Script.sql", "fileLocation" : "C:/MySQLQuery/Script.sql" }