读取从Java Servlet返回的大型JSON数据

Question

Servlet returns about 4000 rows as json object.

Without any processing in javascript, browser is not responsive for a second or two. When that data is processed in "for loop" ...not responsive for about 4 seconds.

Is that json object to large for browser to handle...even without processing is not responsive?

Any idea how to solve that?...Thanks.

Answer 1

If it is slower than you are happy with, you're probably going to have to chunk the data.

Only fetch the data that is going to be showed on page load and then request the rest as needed. If it's for a grid, load the first 20 records and then retch what is needed per request.

If you need ALL of the data 1) only fetch the data that shows on the page 2) load the rest of the data in the background 3) merge the data behind the scenes