How to solve stackoverflow errors in servlets?

i have declared all of my variables and methods in public inside the (servletconn.java). i want to access that variables and methods from another one servlet(NewServlet.java), am creating an object using conn co=new conn(); .but that code displays a开发者_Go百科n error (stackoverflow Error). how do i solve this problem?

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Sounds like you're recursivelly calling your servlets. Without some code, it's anyone's guess.

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Usually a servlet throws IOException,ServletException by default in the callback methods like doGet,doPost etc.

Creating a Database Connection also needs to throw SQLException, ClassNotFoundException Just try to catch these instead of throwing them explicitly.

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If you want to share information between servlets, Why not use ServletContext? You can use ServletContext.setAttribute(key, object) (for uploading) and ServletContext.getAttribute(key) for retrieval.

There is 1 ServletContext per web application, per JVM. So, each servlet, in your webapp, have the same ServletContext.