I’m working on a web project with Spring MVC and JSP pages. I need to get some data from my backend and use it in JavaScript functions on the frontend. Right now I’m thinking about putting the data in the model and then somehow extracting it in my JS code, but this approach feels clunky and not very clean. What are some better ways to pass backend data to JSP so I can access it easily in my JavaScript functions? I want to find the most straightforward solution that doesn’t make my code messy. Any suggestions would be helpful since I’m pretty new to this kind of setup.
What about REST endpoints? I’ve seen people create separate API controllers that return JSON data, then the JSP fetches it when needed. Way more flexible than embedding everything directly. Have you tried this or does it seem like overkill for what you’re doing?
Try JSON script tags in your JSP head section. Serialize your backend data as JSON and drop it straight into a script tag, then grab it with JavaScript variables. No extra HTTP requests needed - the data’s right there when you need it. In your controller, add the data to your model like normal, then in your JSP do something like var backendData = ${yourJsonData}; inside script tags. I’ve used this in tons of Spring MVC projects because it cuts out those separate AJAX calls for initial data loading while keeping your backend and frontend clean. Your JavaScript functions can access the data immediately without worrying about timing issues from async requests.
totally agree! ajax makes things sooo much easier for dynamic data. it keeps your jsp clean and helps with organizing code. def a better approach than stuffing data in the model.