How to package java files?

The method of packaging java files is as follows:

1. First, make sure there are no errors in the program you wrote.

2. The first time I wrote a Web Project, I have not been able to execute it successfully until now, so the best thing to create is a java Project

Packaging steps:

1 .Right-click on the project and select Export.

2. Enter the interface below and select the JAR file under Java

3. Select the project and confirm Check whether the necessary files are selected and select the path to save the jar file package, as shown below

4. After completing step 3, click Next to enter the interface as shown below:

5. Click Next directly to enter the following interface:

6. Click Finish directly, and the jar file package is completed.

Remarks:

1. You can choose some conditions according to your own needs.

2. Open the META-INF\MANIFEST.MF file under the jar file package and check whether the information is correct.

Class-Path: This imports some other jar file packages needed for this project

Main-Class: This is the main() method The path to the .class file of the class where it is located, and there is a carriage return character at the end (for example: as shown above, the main() method is in the PostgresSQLSync class under the test package.)

More java knowledge Please pay attention to the java basic tutorial column.

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