Java和Tomcat org.json java.lang.ClassNotFoundException

Question

I'm new to servlets, I got java.lang.ClassNotFoundException whenever I try to include JSON library, I search the web and stackoverflow the only suggestion I found is to install dependencies I've Tried org.json , net.sf.json each with its dependencies nothing works and gives the same exception.

Any idea?

Answer 1

JSONObject is contained in java-json.jar . Make sure that have you have java-json.jar in your classpath. There are multiple places to put jars in tomcat depending which class loader you want the class to load.

If this jar is only required by your application then simply put it under your application directory in

WEB-INF/lib

It is worth reading how classes are loaded in Tomcat to place your jars optimally: http://tomcat.apache.org/tomcat-7.0-doc/class-loader-howto.html

Answer 2

尝试将Web应用程序的库放在目录中

WebContent/WEB-INF/lib