Add JAVA_HOME into env & fix the broken links of maven and ant

[LinuxSuRen]

Firstly, I need to say sorry about this PR. I didn't notice that I created a branch from kubesphere instead of my personal account.

I did two things here.

• Add a JAVA_HOME as the environment
  • Some CLI or program depends on JAVA_HOME
• Change the links of maven and ant
  • The previous links are broken, you can see the detail below

➜  kubesphere export MAVEN_VERSION=3.5.3
➜  kubesphere export ANT_VERSION=1.10.7

➜  kubesphere curl -I -L -v http://central.maven.org/maven2/org/apache/maven/apache-maven/$MAVEN_VERSION/apache-maven-$MAVEN_VERSION-bin.tar.gz
* Could not resolve host: central.maven.org
* Closing connection 0
curl: (6) Could not resolve host: central.maven.org

➜  kubesphere curl -I -L http://www.us.apache.org/dist//ant/binaries/apache-ant-${ANT_VERSION}-bin.tar.gz
HTTP/1.1 302 Found
Date: Mon, 28 Dec 2020 11:59:54 GMT
Server: Apache/2.4.18 (Ubuntu)
Location: https://downloads.apache.org/ant/binaries/apache-ant-1.10.7-bin.tar.gz
Cache-Control: max-age=3600
Expires: Mon, 28 Dec 2020 12:59:54 GMT
Content-Type: text/html; charset=iso-8859-1

HTTP/1.1 404 Not Found
Date: Mon, 28 Dec 2020 11:59:56 GMT
Server: Apache
Content-Type: text/html; charset=iso-8859-1

[shaowenchen]

/lgtm /approve

[ks-ci-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: LinuxSuRen, shaowenchen

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