A. Right-click on the Project "MyEclipse" menu and select the corresponding jar package by directly using the relevant project jar package from the MyEclipse.
B. Add the external jar package to the Web project's Lib package and right-click the project "Properties"--"Java Build Path"--"Libraries" tab;
C. Manually copy the jar file to the project Lib package, the specific operation as long as the jar file to be added to the MyEclipse in the workspace of the Lib package is good;
For Web projects, everyone is very convenient to copy directly to the LIB, MyEclipse will automatically help you to add to the project
But for, what if you're adding Java project? How do you move a project, and the jar moves with it? You might add extends jars, but this adds the jar just add the path to the project, just say that you can use, but the project jar Not in Java project
Everyone, if you want to add to Java project and move along with the project, do this
First, copy the jar to the project directory under the Myeclispe workspace!
Eg: my project is called Test, working space is D:\workspace so just copy the jar to D:\workspace\test\
Then, right-->build path->config ... librars tab add jars (before add, last refresh refresh, otherwise you may not see your project name)
Finally, you can see that a jar without a path just shows the project name! OK, all right, you can start programming!