grails:setup_grails_3_behind_proxy [Tutorial Site]

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====== Setup Grails 3 Behind Proxy ======
Most companies have set up proxy to protect, and speed up their network, but ''grails'', and ''gradle'' would not download the libraries needed correctly behind the proxy without proper setup.

===== Proxy Setting for Grails =====
  - Go to the path you install grails.
  - Inside, go to the path ''bin''. My case would be ''D:\grails-3.3.6\bin''.
  - Use a text editor to open the file ''grails.bat''.
  - Find the line start with ''set DEFAULT_JVM_OPTS'', and change it to (in one line)<code>
set DEFAULT_JVM_OPTS="-XX:+TieredCompilation" "-XX:TieredStopAtLevel=1" "-XX:CICompilerCount=3" 
"-Dhttp.proxyHost=THE_PROXY_PATH" "-Dhttp.proxyPort=THE_PROXY_PORT"
"-Dhttp.proxyUser=YOUR_USERNAME" "-Dhttp.proxyPassword=YOUR_PASSWORD"
"-Dhttps.proxyHost=THE_PROXY_PATH" "-Dhttps.proxyPort=THE_PROXY_PORT"
"-Dhttps.proxyUser=YOUR_USERNAME" "-Dhttps.proxyPassword=YOUR_PASSWORD"
</code>
  - Please change the values of ''THE_PROXY_PATH'', ''THE_PROXY_PORT'', ''YOUR_USERNAME'', ''YOUR_PASSWORD'' according to your own setting.
  - Depending on the proxy server, some of them might only provide http, or https service.
  - Depending on the proxy server, some of them might not require the user name, and password path.
  - In either case, your have to omitted the unnecessary parts for the above code.
  - Save the file.

===== Proxy Setting for maven or gradle =====
  - Go to your own user directory. For Windows 10, it would be ''C:\Users\YOUR_LOGIN\''
  - Go inside the directory called ''.m2''.
  - Add a file named ''settings.xml''.
  - Open settings.xml with a text editor.
  - Add the following code in such file.<code>
<settings>
  <proxies>
   <proxy>
      <id>http</id>
      <active>true</active>
      <protocol>http</protocol>
      <host>THE_PROXY_PATH<host>
      <port>THE_PROXY_PORT</port>
      <username>YOUR_USER_NAME</username>
      <password>YOUR_PASSWORD</password>
    </proxy>
   <proxy>
      <id>https</id>
      <active>true</active>
      <protocol>https</protocol>
      <host>THE_PROXY_PATH</host>
      <port>THE_PROXY_PORT</port>
      <username>YOUR_USER_NAME</username>
      <password>YOUR_PASSWORD</password>
    </proxy>
  </proxies>
</settings>
</code>
  - Depending on the proxy server, some of them might only provide http, or https service.
  - Depending on the proxy server, some of them might not require the user name, and password path.
  - In either case, your have to omitted the unnecessary parts for the above code.
  - Save the file.