Java client package: what are the advantages and disadvantages of Spring Data Elasticsearch and native Elasticsearch clients, or what are the pitfalls? ...
Server environment: Ali Cloud centos7.4 nginx1.14 php7.2 mysql5.7 there is no problem for the project to run locally and load quickly, but after deployment to the server, access to the web project on the server, when the browser clears the cache, some...
I want to implement the function of , which returns all questions under all tags that the user follows and sorts them in chronological order. Tag and Question are many-to-many, User and Question are one-to-many, and user and tag are many-to-many I ...
that is, now I click to remember the password and the information will be stored in the local storage now there is a requirement that when I click to remember the password, the next time I click on the login page, the password is checked by default, an...
about the ethernet square wallet. metamask is a Google plug-in. All created accounts, transfers and so on communicate through json rpc, so ask if the server also keeps this copy of the private key. ...
I opened the sql log, and found that the find method was executed after the save was executed, but not the sql. if find is executed directly, sql will be executed Why is this? what is the principle? there is no explanation on the official website. ...