如何将 MD5 哈希值添加到 MongoDB 集合?
mongodbdatabasebig data analytics更新于 2026/1/14 3:52:17
要添加 MD5 哈希值，请使用 hex_md5()。首先，我们创建一个包含文档的集合 −
>db.addMd5HashValueDemo.insertOne({"UserName":"Adam","UserPassword":"Adam123456"});
{
"acknowledged" : true,
"insertedId" : ObjectId("5cd6a4c66d78f205348bc619")
}
>db.addMd5HashValueDemo.insertOne({"UserName":"Chris","UserPassword":"Chris_121#"});
{
"acknowledged" : true,
"insertedId" : ObjectId("5cd6a4e46d78f205348bc61a")
}
以下查询借助 find() 方法显示集合中的所有文档 −
> db.addMd5HashValueDemo.find();
将产生以下输出 −
{ "_id" : ObjectId("5cd6a4c66d78f205348bc619"), "UserName" : "Adam", "UserPassword" : "Adam123456" }
{ "_id" : ObjectId("5cd6a4e46d78f205348bc61a"), "UserName" : "Chris", "UserPassword" : "Chris_121#" }
以下是将 md5 哈希值添加到 mongo 集合的查询 −
> db.addMd5HashValueDemo.find().forEach( function(documentPass){
documentPass.Value = hex_md5(documentPass.UserPassword);
db.addMd5HashValueDemo.save(documentPass);
});
让我们再次检查文档 −
> db.addMd5HashValueDemo.find();
这将产生以下输出 −
{ "_id" : ObjectId("5cd6a4c66d78f205348bc619"), "UserName" : "Adam", "UserPassword" : "Adam123456", "Value" : "6523857c2bf79b63fd5fa0322575f7be" }
{ "_id" : ObjectId("5cd6a4e46d78f205348bc61a"), "UserName" : "Chris", "UserPassword" : "Chris_121#", "Value" : "3391ccbe33624258cafa23aa50301615" }
