How to set UTF-8 character encoding in Spring boot?

Question

I use spring-boot in my project, and I run this jar file which is built by spring-boot as a service on Centos. When I run this service:

service myApp

Answer 1

Based on my answer here: https://stackoverflow.com/a/48952844/986160 you need to run:

mvn spring-boot:run -Drun.jvmArguments="-Dfile.encoding=UTF-8"

Answer 2

Finally I found a way so that I can launch Spring-boot project properly.

The solution is use sudo /etc/init.d/myApp start instead of service myApp start

Answer 3

SOLUTION

Add to config file (for application /var/app/app.jar it will be /var/app/app.conf) below line:

export LANG='en_US.UTF-8'

---

CAUSE

The problem is in linux systemd (service). I tested it with script /etc/init.d/test:

#/bin/bash
locale

result of command $ /etc/init.d/test:

LANG=en_US.UTF-8
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC="en_US.UTF-8"
LC_TIME="en_US.UTF-8"
LC_COLLATE="en_US.UTF-8"
LC_MONETARY="en_US.UTF-8"
LC_MESSAGES="en_US.UTF-8"
LC_PAPER="en_US.UTF-8"
LC_NAME="en_US.UTF-8"
LC_ADDRESS="en_US.UTF-8"
LC_TELEPHONE="en_US.UTF-8"
LC_MEASUREMENT="en_US.UTF-8"
LC_IDENTIFICATION="en_US.UTF-8"
LC_ALL=

and result of command $ service test:

LANG=
LC_CTYPE="POSIX"
LC_NUMERIC="POSIX"
LC_TIME="POSIX"
LC_COLLATE="POSIX"
LC_MONETARY="POSIX"
LC_MESSAGES="POSIX"
LC_PAPER="POSIX"
LC_NAME="POSIX"
LC_ADDRESS="POSIX"
LC_TELEPHONE="POSIX"
LC_MEASUREMENT="POSIX"
LC_IDENTIFICATION="POSIX"
LC_ALL=

In spring boot jar file is build-in systemd script and before running spring boot is executed among others:

# Source any config file
configfile="$(basename "${jarfile%.*}.conf")"

# Initialize CONF_FOLDER location defaulting to jarfolder
[[ -z "$CONF_FOLDER" ]] && CONF_FOLDER="${jarfolder}"

# shellcheck source=/dev/null
[[ -r "${CONF_FOLDER}/${configfile}" ]] && source "${CONF_FOLDER}/${configfile}"

Answer 4

The first line tells you that you should set system property 'file.encoding'. I think that's the problem. Please see: Setting the default Java character encoding?