有時還是有不同的專案對應不同的 JDK 版本, 雖然你可以全都裝, 但管理還是麻煩, 所以裝了這個 JDK 管理工具, 方便做切換
install sdkman
官網在這邊 sdkman
安裝很簡單, 一行指令搞定
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| curl -s "https://get.sdkman.io" | bash
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how to use
使用指令, 可以列出所有支援的 Java 版本, 包含 AdoptOpenJDK Amazon Azul Zulu 可說是該有的都有了, 居然還有 GraalVM
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| $ sdk list java
================================================================================
Available Java Versions
================================================================================
Vendor | Use | Version | Dist | Status | Identifier
--------------------------------------------------------------------------------
AdoptOpenJDK | | 15.0.1.j9 | adpt | | 15.0.1.j9-adpt
| | 15.0.1.hs | adpt | | 15.0.1.hs-adpt
| | 14.0.2.j9 | adpt | | 14.0.2.j9-adpt
| | 14.0.2.hs | adpt | | 14.0.2.hs-adpt
| | 13.0.2.j9 | adpt | | 13.0.2.j9-adpt
| | 13.0.2.hs | adpt | | 13.0.2.hs-adpt
| | 12.0.2.j9 | adpt | | 12.0.2.j9-adpt
| | 12.0.2.hs | adpt | | 12.0.2.hs-adpt
| | 11.0.9.j9 | adpt | | 11.0.9.j9-adpt
| >>> | 11.0.9.hs | adpt | installed | 11.0.9.hs-adpt
| | 8.0.275.j9 | adpt | | 8.0.275.j9-adpt
| | 8.0.275.hs | adpt | | 8.0.275.hs-adpt
| | 8.0.272.hs | adpt | | 8.0.272.hs-adpt
Amazon | | 15.0.1 | amzn | | 15.0.1-amzn
| | 11.0.9 | amzn | | 11.0.9-amzn
| | 8.0.275 | amzn | | 8.0.275-amzn
Azul Zulu | | 15.0.1 | zulu | | 15.0.1-zulu
| | 15.0.1.fx | zulu | | 15.0.1.fx-zulu
| | 14.0.2 | zulu | | 14.0.2-zulu
| | 14.0.2.fx | zulu | | 14.0.2.fx-zulu
| | 13.0.5 | zulu | | 13.0.5-zulu
| | 13.0.5.fx | zulu | | 13.0.5.fx-zulu
| | 12.0.2 | zulu | | 12.0.2-zulu
| | 11.0.9 | zulu | | 11.0.9-zulu
| | 11.0.9.fx | zulu | | 11.0.9.fx-zulu
| | 10.0.2 | zulu | | 10.0.2-zulu
| | 9.0.7 | zulu | | 9.0.7-zulu
| | 8.0.272 | zulu | | 8.0.272-zulu
| | 8.0.272.fx | zulu | | 8.0.272.fx-zulu
| | 8.0.202 | zulu | | 8.0.202-zulu
| | 7.0.282 | zulu | | 7.0.282-zulu
| | 7.0.181 | zulu | | 7.0.181-zulu
BellSoft | | 15.0.1.fx | librca | | 15.0.1.fx-librca
| | 15.0.1 | librca | | 15.0.1-librca
| | 14.0.2.fx | librca | | 14.0.2.fx-librca
| | 14.0.2 | librca | | 14.0.2-librca
| | 13.0.2.fx | librca | | 13.0.2.fx-librca
| | 13.0.2 | librca | | 13.0.2-librca
| | 12.0.2 | librca | | 12.0.2-librca
| | 11.0.9.fx | librca | | 11.0.9.fx-librca
| | 11.0.9 | librca | | 11.0.9-librca
| | 8.0.275.fx | librca | | 8.0.275.fx-librca
| | 8.0.275 | librca | | 8.0.275-librca
| | 8.0.265.fx | librca | | 8.0.265.fx-librca
GraalVM | | 20.3.0.r11 | grl | installed | 20.3.0.r11-grl
| | 20.3.0.r8 | grl | installed | 20.3.0.r8-grl
| | 20.2.0.r11 | grl | installed | 20.2.0.r11-grl
| | 20.2.0.r8 | grl | | 20.2.0.r8-grl
| | 20.1.0.r11 | grl | | 20.1.0.r11-grl
| | 20.1.0.r8 | grl | | 20.1.0.r8-grl
| | 20.0.0.r11 | grl | | 20.0.0.r11-grl
| | 20.0.0.r8 | grl | | 20.0.0.r8-grl
| | 19.3.4.r11 | grl | | 19.3.4.r11-grl
| | 19.3.4.r8 | grl | | 19.3.4.r8-grl
| | 19.3.1.r11 | grl | | 19.3.1.r11-grl
| | 19.3.1.r8 | grl | | 19.3.1.r8-grl
Java.net | | 16.ea.28 | open | | 16.ea.28-open
| | 16.ea.9.lm | open | | 16.ea.9.lm-open
| | 16.ea.3.pma | open | | 16.ea.3.pma-open
| | 15.0.1 | open | | 15.0.1-open
| | 14.0.2 | open | | 14.0.2-open
| | 13.0.2 | open | | 13.0.2-open
| | 12.0.2 | open | | 12.0.2-open
| | 11.0.2 | open | | 11.0.2-open
| | 10.0.2 | open | | 10.0.2-open
| | 9.0.4 | open | | 9.0.4-open
SAP | | 15.0.1 | sapmchn | | 15.0.1-sapmchn
| | 14.0.2 | sapmchn | | 14.0.2-sapmchn
| | 13.0.2 | sapmchn | | 13.0.2-sapmchn
| | 12.0.2 | sapmchn | | 12.0.2-sapmchn
| | 11.0.9 | sapmchn | | 11.0.9-sapmchn
TravaOpenJDK | | 11.0.9 | trava | | 11.0.9-trava
| | 8.0.232 | trava | | 8.0.232-trava
================================================================================
Use the Identifier for installation:
$ sdk install java 11.0.3.hs-adpt
================================================================================
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安裝指定版本
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| $ sdk install java 11.0.9.hs-adpt
Found a previously downloaded java 11.0.9.hs-adpt archive. Not downloading it again...
Installing: java 11.0.9.hs-adpt
Done installing!
Do you want java 11.0.9.hs-adpt to be set as default? (Y/n): y
Setting java 11.0.9.hs-adpt as default.
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移除指定版本
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| $ sdk uninstall java 11.0.9.hs-adpt
Deselecting java 11.0.9.hs-adpt...
Uninstalling java 11.0.9.hs-adpt...
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雖然說有多版本要用在切換是很方便, 但還是會有預設版本的需求
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| $ sdk default java 11.0.9.hs-adpt
Default java version set to 11.0.9.hs-adpt
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這時候去驗證一下
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| $ java -version
openjdk version "11.0.9" 2020-10-20
OpenJDK Runtime Environment AdoptOpenJDK (build 11.0.9+11)
OpenJDK 64-Bit Server VM AdoptOpenJDK (build 11.0.9+11, mixed mode)
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輕鬆管理不費力, 讚!