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Maven compilation in Eclipse

 
Greenhorn
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Hi Team ,

I am completely new to Maven.In my project I have downloaded the project modules from GIT.I have done the "maven clean install" in command prompt and successfully war file generated.I imported that maven project module in Eclipse as import as Maven project .Kindly clarify my following doubts.


My Doubt-

1) If I want to change some code in eclipse ,how can build that file to be reflected the changes in workspace.(Through "maven compile"  in command prompt or maven build  in eclipse)

2)Once I build that file ,do I need to run again maven clean install so that the war file need to be updated with the changes?If It require to run clean install ,where do I need to run....In eclipse or Command prompt.
 
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Welcome to the Ranch, Deepak!

It makes no difference whether you run Maven from a command line or within Eclipse.

Eclipse will recompile classes when you change them, and if your project is set up properly, the output of the compiler will go into the Maven target/classes directory, so that's all good.

Eclipse will not, however, build the WAR automatically. You don't have to run maven's "clean" goal, but to rebuild the WAR, you need to run the "war:war" goal or a goal such as "package" that invokes the war:war goal as a sub-goal.

Run Maven clean when you want to be sure that any "dead" files (classes and/or property/data files) that go into the WAR will be removed. Maven won't remove them automatically.
 
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