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Posted on 2021-9-25 18:06:19
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Since Java was acquired by Oracle, the new version under Windows only has an installation version, no zip free installation. Linux environments are available in no-install versions.
The Windows installation version has the following disadvantages:
- Writes a registry
- java.exe, javaw.exe, etc. will be extracted to C:\Windows\System32 or C:\Windows\SysWOW64
- The regular update program will be set to boot auto-boot, and a pop-up prompt for the new version will be found
- An oracle javapath will be written in the PATH, and jre\bin will be added
Therefore, if you make an installation-free version, you don't need to go through cumbersome installation steps, just copy and unzip and set the environment variables.
JDK download address:The hyperlink login is visible.
I need to register an Oracle account to download, and I have uploaded the downloaded to another website:The hyperlink login is visible.
Take the JDK-8U301 version as an example, download the jdk-8u301-windows-x64.exe file, extract it using 7-zip (Winrar will give an error when unpacking！ ）
Extract it to the jdk-8u301-windows-x64 directory, as shown below:
Then enter.rsrc\1033\JAVA_CAB10directory below, execute the following command:
Once the execution is complete,tools.zip file is generated, use the decompression tool to decompress to tools, and after the decompression is completed, as shown in the figure below:
Go to the tools file and run the following command to change the .pack file to a .jar file, as shown in the figure below:
Enter again.rsrc\1033\JAVA_CAB9folder, and execute the following command to get the source code package:
The released src.zip does not need to be unzipped, just copy it directly to the tools directory, and at this point, the Java JDK Windows green no-install version is complete!
Green Instant Download Address：The hyperlink login is visible.
Copy the tools folder rename jdk_1.8.0_301 to the D:\Java directory and add the following command to the environment variables:
Note: You must run the cmd execution command as an administrator,And dividetwiceExecute in a new cmd windowOtherwise, the second command will not be able to successfully obtain the value of JAVA_HOME.
Start running the cmd command and run the following command to see the Java version:
C:\Users\itsvse_pc>java -version
java version "1.8.0_301"
Java(TM) SE Runtime Environment (build 1.8.0_301-b09)
Java HotSpot(TM) 64-Bit Server VM (build 25.301-b09, mixed mode)
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