commons-net-3.3.jar

commons-net-3.3.jar is an important jar framework package for powerful jdbc connection pool. Without this commons-net-3.3.jar package, Java development will be very difficult. Download commons-net-3.3.jar immediately for Java development.

How to use

1. The most commonly used common operation method: basic steps

Right-click "Project" → select Properties, select Java Build Path in the list on the left side of the pop-up dialog box, as shown in the figure below: Select Add External JARs to add third-party reference jar packages one by one (you can also select multiple jars, but they are limited to the same folder).

The operation in the above method is universal, but every time a project is created, the Jar package needs to be reintroduced, and the Jar package is not reusable.

2. Quick version operation method: user Jar package type

Right-click "Project" → select Properties, select Java Build Path in the list on the left side of the pop-up dialog box, and the dialog box as shown above will pop up. Here, select "Add Library", and the dialog box as shown below will pop up. Select "User Library", and then select → Next

In the dialog box that appears, you can select the user-defined library that has been created, or you can select User Libraries. In the new dialog box that pops up, select "New" to create a new user-defined library.

In the user-defined library to be created, enter the name of the new custom library, as shown below

Then for the new library, add the required Jar package

After adding user-defined libraries according to the above steps, you can reuse these defined User Libraries in the future, saving time for development.

3. Quick version operation method: folder import type

In the project, create a new folder (eg:ibatis_jar), as shown in the figure below. In this example, the ibatis_jar folder is created, and the third-party jar package required for project development is copied to the folder.

Select the jar package that needs to be added to the project, right-click and select "Build PathàAdd to Build Path", so that the Jar package is successfully imported into the project.

The third method of importing Jar packages is simpler than the second method and more reusable. When we find the required Jar packages on different machines, we can just copy these folders directly.