Dependency conflict resolution under idea

First of all, we need to know that dependence is the basis Maven Coordinate oriented , and Maven The coordinates are mainly composed of GAV(groupId、artifictId、version) constitute .

If your local Maven The warehouse has two identical dependent packages , Even if there are only different coordinates , but Maven Think that these two dependent packages are still different . In this way, the two dependent packages will conflict .

as follows , First click Maven The plug-in show dependencies, And found that swagger models There are two dependencies , And the two dependent versions are different , Therefore, there will be conflicts between the two .

We see our local Maven The warehouse can also find two different versions swagger-models Dependency package

  I solve these two conflicts by using plugin Plug in maven-helper

 

  This will appear below Dependency Analyser( Dependency analysis )

  We click directly Dependency Analyser, Click on Conflicts Conflict options , You can find out which dependency causes conflict , ad locum , yes swagger-model Conflicts between dependent versions , Then we can go to maven Find the location of these two dependencies in the plug-in

 

  We can directly right-click on the dependency with dependency conflict Exclude, Remove the dependency

  Then we click refresh Ui, You will find that there is no dependency conflict , And in maven The dependencies in the plug-in also disappeared .

  Then you will find that a conflict dependency is added Exclude label

If we know that the problem is caused by this dependency , It can also be directly added to eliminate , But through maven-helper You can more intuitively see what dependency causes the problem .