blue question mark for jar file in the lib folder in eclipse

Question

When I use maven clean and install functions, the console shows missing those ten jar files. Then I am trying to both drag the ten jar files to the lib folder and "Properites -> Java Build Path" ->"Libraries -> Add External JARs". However when I try to clean and install the maven the problems still exists. And those "missing" jar files under "lib" got blue question marks

Answer 1

Include those jar file entries in your pom.xml . The maven build will check for needed jar files in maven repository, it will not go to repository if you have manually dragged those jars to your lib folder.

Answer 2

只需简单地提交文件jar和蓝色标记问题即可解决。