Jetty can be directly debugged without deployment.

I used to debug web programs. It was really hard to build tomcat. I wanted to find a simple method. I wanted to debug a servlet I wrote, I can see the book "How Tomcat works" to understand it. However, it is more convenient to use the Web Container jetty, which is recorded here.

1. Create a project

2. Copy the code and add the dependent jar.

3. Start debugging and OK.

Project style:

 

Jettystarter code:

 Package  Jetty;  Import  Org. mortbay. Jetty. connector;  Import  Org. mortbay. Jetty. server; Import  Org. mortbay. Jetty. NiO. selectchannelconnector;  Import  Org. mortbay. Jetty. webapp. webappcontext;  /**  * Jetty server startup class **  @ Author  Zhailzh  */        Public   Class  Jettystarter {  Public   Static   Void Main (string [] ARGs) Throws  Exception {  Long Begin = System. currenttimemillis (); connector Conne = New  Selectchannelconnector (); connector. setport (integer. getinteger ( "Jetty. Port", 12345 ). Intvalue (); webappcontext webapp = New Webappcontext ("Web", "/httpservlet" ); Server Server = New Server (); server. setconnectors (  New  Connector [] {connector}); server. sethandler (webapp); server. Start (); system. Out. println ( "Jetty server started, use" + (system. currenttimemillis ()-begin) + "Ms" );}} 

Dependent jar package:

Ant-1.6.5.jar
Core-3.1.1.jar
Jetty-6.1.14.jar
Jetty-util-6.1.14.jar
Jsp-2.1.jar
Jsp-api-2.1.jar
Servlet-api-2.5-6.1.14.jar

Download link: Dependent jar package

Debug debugging:

Input in the browser:

Jetty can be directly debugged without deployment.