Qhov wikiHow qhia koj yuav teeb tsa koj li JAVA_HOME Ib puag ncig txoj hauv kev. Nov yog qhov Java Cov Khoom Siv Txhim Kho (JDK) tau teeb tsa hauv koj lub khoos phis tawj. Java yog ib hom lus programming uas nrov tshaj plaws. Nws tau siv los khiav txhua yam los ntawm cov duab siv duab cuam tshuam rau cov neeg siv, kev siv mobile, web applications, nrog rau kev lag luam thiab kev siv tshawb fawb. Ntau daim ntawv thov uas khiav Java lossis tab tom tsim hauv JDK yuav tsum paub qhov twg JAVA_HOME Ib puag ncig txoj kev nyob.
Cov kauj ruam
Kauj Ruam 1. Tua Terminal
Txhawm rau qhib Terminal hauv Ubuntu, nias Ctrl+Alt+T lossis qhib Dash thiab nyem lub cim uas zoo ib yam li lub vijtsam dub nrog cov ntawv sau tam sim ntawd.
Kauj ruam 2. Ntaus sudo su thiab nias ↵ Enter
Qhov no muab txoj hauv kev rau koj hauv paus.
Kauj Ruam 3. Nkag mus rau lo lus zais hauv paus
Txhawm rau kom tau txais kev nkag mus hauv paus, koj yuav tsum nkag mus rau tus lej nkag mus hauv paus.
Kauj Ruam 4. Ntaus sudo updatedb thiab nias ↵ Enter
Qhov no hloov kho koj lub database.
Kauj Ruam 5. Ntaus nrhiav openjdk thiab nias ↵ Enter
Cov lus txib no yog siv los txheeb xyuas qhov twg Java tau teeb tsa ntawm koj lub tshuab Ubuntu.
Yog tias Java tsis tau teeb tsa, ntaus sudo apt-get install openjdk-9-jre-headless -y thiab nias ↵ Enter
Kauj Ruam 6. Saib seb Java nyob qhov twg
Koj tuaj yeem siv qhov chaw teeb tsa los teeb Java_Home txoj kev. Piv txwv li, yog tias feem ntau ntawm cov ntawv xa tawm yog "/usr/lib/jvm/java-9-openjdk-amd64", peb yuav siv txoj hauv kev no los teeb tsa Java_Home pawg.
Kauj Ruam 7. Hom export JAVA_HOME = ua raws li Java txoj kev teeb tsa
Hauv peb qhov piv txwv dhau los, peb yuav ntaus export JAVA_HOME = "/usr/lib/jvm/java-9-openjdk-amd64". Qhov no teeb tsa txoj kev Java_Home ib ntus. Txawm li cas los xij, yog tias lub kaw lus rov pib dua, nws yuav ploj.
Kauj Ruam 8. Nias ↵ Enter
Qhov no ua tiav cov lus txib.
Kauj Ruam 9. Ntaus echo "JAVA_HOME = 'ua raws li txoj hauv kev teeb tsa
Siv qhov piv txwv saum toj no, peb yuav ntaus ncha "JAVA_HOME = '/usr/lib/jvm/java-9-openjdk-amd64'".
Kauj ruam 10. Ntxiv >> /etc /ib puag ncig mus rau qhov kawg ntawm kab thiab nias ↵ Enter.
Qhov no teeb tsa txoj hauv kev Java_Home tas mus li.
