英语翻译Important:This is not a supported means of building Tomcat; this information is provided without warranty :-).The only supported means of building Tomcat is with the "ant build" described above.However,some developers like to work on Java code with a Java IDE,and the following steps have been used by some developers.Note that you must complete all the above steps to fetch the repositories and build some JAR files the first time.After you have comp

英语翻译
Important:This is not a supported means of building Tomcat; this information is provided without warranty :-).The only supported means of building Tomcat is with the "ant build" described above.However,some developers like to work on Java code with a Java IDE,and the following steps have been used by some developers.
Note that you must complete all the above steps to fetch the repositories and build some JAR files the first time.After you have completed the above steps,you can set up a series of Eclipse 4 projects.Note that this will not let you build everything under Eclipse; the build process requires use of Ant for the many stages that aren't simple Java compilations.However,it will allow you to view and edit the Java code,get warnings,reformat code,perform refactorings,run Tomcat under the IDE,and so on.
You will want to set up your Eclipse project for building Tomcat such that ${tomcatSource} is the Workspace folder.
Use Windows->Preferences and then Java->Build Path->Classpath Variables to add two new Classpath variables:
TOMCAT_LIBS_BASE the base path where the binary dependencies have been downloaded
ANT_HOME the base path of Ant 1.6.2 or later
Use File->New Project to create a new Java project for each of the binaries repository (e.g.,/usr/share/java),container,connectors,jasper,servletapi.If you didn't already set up the Eclipse project such that ${tomcat.source} is the Workspace folder,do so now:tell Eclipse the external location using "Import/Export...",General->Existing Project into Workspace.
Eclipse .project and .classpath files are provided in each of these directories so Eclipse should find all source trees and jars,and hopefully compile without problems.Note that these files assume you are using Eclipse with a 5.0 or later JDK; also,the connectors module must be built with a compiler compliance level of 5.0.
To run Tomcat without a special IDE plug-in,you can simply use Run->Run...enter "org.apache.catalina.startup.Catalina" as the main class,"start" as program arguments,and "-Dcatalina.home=..." (with the name of your build directory) as VM arguments.
Note also that due to the way the Tomcat source is assembled from several SVN projects,you may not be able to use the Eclipse SVN client to update (nor to commit,if you are a committer).Use the external SVN client of your choice,then use the Eclipse PackageExplorer or Navigator "Refresh" context menu item to tell Eclipse that you've updated the files.