java - Understanding Maven Dependencies -

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i new using maven build projects. understand declare dependencies inside pom file outline jars needed project added build @ compile time.

my question is, how work during development, when need jar file in order develop application? thought point of maven don't have have jar file, gets acquired , put war @ build time. if i'm developing , need jar file (say jersey example), still need go out , grab jar myself , put in lib directory in order development work, right, know classes/methods available me in .jar? can explain me missing?

will import statements reference jersey classes resolved @ compile time, since right underlined in red since jar not present?

once have specified dependency in maven pom, maven's responsibility download it. remember maven not bothered whether code has dependency on jar. in ide create maven project [not simple java project], add dependencies in pom, when save pom, dependencies downloaded. if dependencies not getting downloaded need check maven settings.xml file repository url or credentials might not correct.

also want ad build part details. maven has lots of plugin available can package dependencies in war file[assembly plugin] or rpm [maven rpm plugin]. these plugins wrap dependencies along main jar single deployable file.


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