fix in web application in JAVA with HTML/JSP - JSON - DATATABLE

Hi, I'm building a web application in JAVA. With libraries: Springboot, MongoDB, Thymeleaf, Datatable. The application is created in a basic way with connection to MongoDB and viewing pages but at the moment I'm having the difficulty of listing I created below and for which ad: 1) I can't save data in MongoDB with capitalize, uppercase, lowercase, camelcase. I set up the objects as follows: <input type = "text" class = "form-control" th: field = "* {name}" style = "text-transform: capitalize;" required> but since it is CSS I can see the data in the page correctly but on the DB on the Backend side the entity should be deserialized, modify the data and serialized again before saving it to DB because save only the real keypressed used from keyboard and don't read the style apply from css case is only view. Isn't there a MongoDB libraries command that does it automatically? something that acts directly on the mongoDb cursor on the java side? Or alternatively the Thymeleaf library when reading the data from the input text cannot convert them already in camelcase? 2) I implemented the Backend side the Delete method to delete the selected records from the Datatable and also delete them from MongoDB but I can't pass to delete BE method, the selected record from the Datatable of the person that I want delete. Now when i press on delete the method recive an EMPTY user to delete and go in error the page. 3) I need to do that when i click on a row of datatable, all the fields of the page are loaded with the date of the selected row from datatable and next when i click on the Button "Modify", the data will be updated in MongoDB collection N.B. I assign the project only to those who show me they understand each other and after they have shown me something. N.B. I would need to resolve the 3 points described to release the established money. N.B. I DONT CREATE MILESTONE! I ASSIGN THE PROJECT AND CREATE MILESTONE AND RELEASE IT ONLY IF YOU SHOW ME THAT MY PROJECT WORK. IF YOU DON'T ARE INTERESSED YOU DONT DO OFFER. IF YOU WRITE AUTOMATICAL MESSAGES AND YOU DONT KNOW JAVA, OR Thymeleaf, OR DATATABLE, OR MONGODB, PLS DONT CONTACT ME. I DONT HAVE TIME TO LOST. THANKS!!!! Thanks