google app engine - Developing a web client without servlet -

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i m new appengine development.i have few basic question web client appengine.when make google cloud module in android studio, android client, end , web client auto-generated.a few files auto-generated web interface. questions are:

  1. why need web-inf/web.xml web client? found there's servlet api dependency added in gradle, though didnt find , servlet file, used ?
  2. i want make web interface/client andorid app, dont know servlet,jsp, can make pure javascript or js lib?
  3. will default template web client work other web-hosting appengine?
  4. how can make web client pure javascript,css,html, google cloud doc javascript suffice purpose?

why need web-inf/web.xml web client? found there's servlet api dependency added in gradle, though didnt find , servlet file, used ?

both base elements java web applications though not using servlets modern web frameworks built on top of them.

i want make web interface/client andorid app, dont know servlet,jsp, can make pure javascript or js lib?

yes, gae standard web applications can build , app using pure html + js.

will default template web client work other web-hosting appengine?

short answer, no. app engine sdk depends on several apis available strictly on gae environment. shouldn't hard empty webapp template working on tomcat thought.

how can make web client pure javascript,css,html, google cloud doc javascript suffice purpose?

i dont know mean "the google cloud doc" answer yes, app engine, cloud compute , google drive capable of hosting html+js.


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