Ebee ka jdk m dị na Linux?
Nhọrọ, ị nwere ike iji ebe iwu ma soro njikọ ihe atụ iji chọta ụzọ Java. Ihe mmepụta ahụ na-agwa gị na Java dị na /usr/bin/java. Inyocha ndekọ ndekọ na-egosi na /usr/bin/java bụ naanị njikọ ihe atụ maka /etc/alternatives/java.
Kedu otu m ga-esi mara ebe etinyere jdk m?
Malite menu> Kọmputa> Njirimara sistemu> Njirimara sistemụ dị elu. Mepee taabụ dị elu> Environment Variables na n'ụdị mgbanwe sistemụ gbalịa ime chọta JAVA_HOME. Nke a na-enye m folda jdk.
Ebee ka etinyere jdk na Ubuntu?
N'ozuzu, a na-etinye java na /usr/lib/jvm . Ebe ahụ ka etinyere sun jdk. lelee ma ọ bụ otu maka oghe jdk kwa. Na Ubuntu 14.04, ọ dị na /usr/lib/jvm/default-java.
Kedu ka m ga-esi mara ma etinye Tomcat na Linux?
Iji ndetu ntọhapụ
- Windows: pịnye MKWADO-NOTES | chọta “ụdị Apache Tomcat” Mpụta: Apache Tomcat Version 8.0.22.
- Linux: nwamba MKWADO-NOTES | grep “Apache Tomcat Version” Mmepụta: Apache Tomcat Version 8.0.22.
Kedu ka m ga-esi chọta ụdị Linux OS?
Lelee ụdị OS na Linux
- Mepee ngwa njedebe (bash shell)
- Maka nbanye ihe nkesa dịpụrụ adịpụ site na iji ssh: ssh user@server-name.
- Pịnye nke ọ bụla n'ime iwu ndị a ka ịchọta aha os na ụdị na Linux: cat /etc/os-release. lsb_nhapụ -a. hostnamectl.
- Pịnye iwu a ka ịchọta ụdị kernel Linux: uname -r.
Kedu otu m ga-esi mara ma etinyere m java site na ngwa ngwa?
Azịza
- Mepee ngwa ngwa. Soro ụzọ menu Malite> Mmemme> Ngwa> Ngwa ngwa.
- Pịnye: java -version wee pịa Tinye na ahụigodo gị. Nsonaazụ: Ozi yiri nke a na-egosi na arụnyere Java na ị dịla njikere iji MITSIS site na Java Runtime Environment.
Kedu ka m ga-esi mara ma enwere m JDK ma ọ bụ OpenJDK?
Ị nwere ike dee script bash dị mfe iji lelee nke a:
- Mepee ndezi ederede ọ bụla (ọkacha mma vim ma ọ bụ emacs).
- mepụta faịlụ aha ya bụ script.sh (ma ọ bụ aha ọ bụla nwere ...
- mado koodu na-esonụ na ya: #!/bin/bash ma ọ bụrụ [[ $(java -version 2>&1) == *”OpenJDK”*]]; wee kwughachi ok; ọzọ kwughachi 'adịghị mma'; fi.
- chekwaa wee pụọ na nchịkọta akụkọ.
Kedu otu m ga-esi chọta ụzọ java m?
Nyochaa JAVA_HOME
- Mepee windo Command ozugbo (Win⊞ R, pịnye cmd, pịa Tinye).
- Tinye iwu echo %JAVA_HOME% . Nke a kwesịrị iwepụta ụzọ gaa na nchekwa nrụnye Java gị. Ọ bụrụ na ọ meghị, agbanweghị JAVA_HOME gị nke ọma.
Kedu otu m ga-esi budata JDK na Linux?
Iji wụnye 64-bit JDK na Linux n'elu ikpo okwu:
- Budata faịlụ a, jdk-9. obere. nche. …
- Gbanwee ndekọ na ebe ịchọrọ ịwụnye JDK, wee megharịa ya. taa. gz Archive binary na nke ugbu a ndekọ.
- Mepee bọọlụ bọọlụ wee wụnye JDK: % tar zxvf jdk-9. …
- Hichapụ ihe. taa.
Kedu otu m ga-esi tinye Java na ọdụ Linux?
Wụnye Java na Ubuntu
- Mepee ọnụ (Ctrl+Alt+T) wee melite ebe nchekwa ngwugwu iji hụ na ị budata ụdị ngwanrọ kachasị ọhụrụ: sudo apt update.
- Mgbe ahụ, ị nwere ike iji obi ike wụnye ngwa mmepe Java ọhụrụ site na iwu na-esonụ: sudo apt install default-jdk.
Kedu JDK ka m ga-ebudata maka Ubuntu?
Site na ndabara, Ubuntu 18.04 gụnyere Open JDK (ụdị JRE na JDK mepere emepe). Nke a ngwugwu wụnye Mepee ụdị 10 ma ọ bụ 11. Ruo Septemba 2018, etinyere OpenJDK 10. Mgbe Septemba 2018 gachara, etinyere OpenJDK 11.