mongodb

登录数据库
use admin
db.auth("myUserAdmin", "abc123" )


#security:
  #authorization: enabled




C:\Program Files\MongoDB\Server\4.0\data\
C:\Program Files\MongoDB\Server\4.0\log\


use admin
db.createUser(
  {
    user: "zhangcunli",
    pwd: "haliluya100",
    roles: [
       { role: "userAdminAnyDatabase", db: "admin" }
    ]
  }
)
readWrite

dev dev100
test test100



批量插入
db.getCollection('mc').insert([{x:1.3},{x:1.5}])

分页、倒序
db.getCollection('customer').find({"_id" :{$gt:ObjectId("5ac2e43074702d3bd0cfd9ab")}}).sort({"_id":-1}).limit(3)
分页
public List<Customer> findById() {
Query query = new Query();
query.addCriteria(Criteria.where("_id").gt(new ObjectId("5ac2e43074702d3bd0cfd9ab")));
// query.with(new Sort(Sort.Direction.DESC,"_id"));
Long pageSize = mongoTemplate.count(query, Customer.class);
log.info("-------pageSize------"+pageSize);
return mongoTemplate.find(query.limit(2), Customer.class); 
 
}