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Editorial Team
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Asked: 2026-05-19T04:23:45+00:00

I have a webservice (ie. servlet) implemented in Java. It gets some data from

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I have a webservice (ie. servlet) implemented in Java. It gets some data from a MySQL table, with one column being of type BLOB (an image), and some other columns are just plain text.
Normally I would store the file outside the database with a pointer to it in the database, but due to circumstance I now have to use this BLOB column…

What is the proper way to send this? How to encode the image in a JSONObject, and how to parse (and RENDER!) it on the otherside ?

I want to use JSONP, to avoid having to proxy it through the consumer’s webserver.

So that the consumer can just put in a tag pointing to the webservice, calling a callback.

Any thoughts how to handle images in this situation? Also thoughts on performance etc. are interesting!

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1 Answer

  1. Editorial Team

    I can think of java-side base64_encode to make sure BLOB fits into text-only json, then javascript-side to base64_decode and/or inline images for rendering.

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