站长资讯网0x00 前言
吾使用 alpine 作为基础镜像构建了 jdk8 镜像，为线上业务的 Java 微服务架构提供支持，但是有容器运行的 java 服务中打印的日志中一旦出现中文，就会出现诸如以下的 ???? 的乱码：
以下是解决该问题的方法，转载自 github 中这个 issues 中的解决方法。
0x01 解决
1、使用 alpine 构建镜像时，在 dockerfile 修改其语言环境：
FROM alpine:3.6 # ---not shown here--- # Install language pack RUN apk --no-cache add ca-certificates wget && wget -q -O /etc/apk/keys/sgerrand.rsa.pub https://alpine-pkgs.sgerrand.com/sgerrand.rsa.pub && wget https://github.com/sgerrand/alpine-pkg-glibc/releases/download/2.25-r0/glibc-2.25-r0.apk && wget https://github.com/sgerrand/alpine-pkg-glibc/releases/download/2.25-r0/glibc-bin-2.25-r0.apk && wget https://github.com/sgerrand/alpine-pkg-glibc/releases/download/2.25-r0/glibc-i18n-2.25-r0.apk && apk add glibc-bin-2.25-r0.apk glibc-i18n-2.25-r0.apk glibc-2.25-r0.apk # Iterate through all locale and install it # Note that locale -a is not available in alpine linux, use `/usr/glibc-compat/bin/locale -a` instead COPY ./locale.md /locale.md RUN cat locale.md | xargs -i /usr/glibc-compat/bin/localedef -i {} -f UTF-8 {}.UTF-8 # Set the lang, you can also specify it as as environment variable through docker-compose.yml ENV LANG=en_US.UTF-8 LANGUAGE=en_US.UTF-8 # --- not show here---
同级目录下创建 locale.md 文件，将以下内容拷贝入 locale.md：
aa_DJ aa_ER aa_ET af_ZA am_ET an_ES ar_AE ar_BH ar_DZ ar_EG ar_IN ar_IQ ar_JO ar_KW ar_LB ar_LY ar_MA ar_OM ar_QA ar_SA ar_SD ar_SY ar_TN ar_YE as_IN ast_ES ayc_PE az_AZ be_BY bem_ZM ber_DZ ber_MA bg_BG bho_IN bn_BD bn_IN bo_CN bo_IN br_FR brx_IN bs_BA byn_ER ca_AD ca_ES ca_FR ca_IT crh_UA csb_PL cs_CZ cv_RU cy_GB da_DK de_AT de_BE de_CH de_DE de_LU doi_IN dv_MV dz_BT el_CY el_GR en_AG en_AU en_BW en_CA en_DK en_GB en_HK en_IE en_IN en_NG en_NZ en_PH en_SG en_US en_ZA en_ZM en_ZW es_AR es_BO es_CL es_CO es_CR es_CU es_DO es_EC es_ES es_GT es_HN es_MX es_NI es_PA es_PE es_PR es_PY es_SV es_US es_UY es_VE et_EE eu_ES fa_IR ff_SN fi_FI fil_PH fo_FO fr_BE fr_CA fr_CH fr_FR fr_LU fur_IT fy_DE fy_NL ga_IE gd_GB gez_ER gez_ET gl_ES gu_IN gv_GB ha_NG he_IL hi_IN hne_IN hr_HR hsb_DE ht_HT hu_HU hy_AM ia_FR id_ID ig_NG ik_CA is_IS it_CH it_IT iu_CA ja_JP ka_GE kk_KZ kl_GL km_KH kn_IN kok_IN ko_KR ks_IN ku_TR kw_GB ky_KG lb_LU lg_UG li_BE lij_IT li_NL lo_LA lt_LT lv_LV mag_IN mai_IN mg_MG mhr_RU mi_NZ mk_MK ml_IN mni_IN mn_MN mr_IN ms_MY mt_MT my_MM nb_NO nds_DE nds_NL ne_NP nhn_MX niu_NU niu_NZ nl_AW nl_BE nl_NL nn_NO nr_ZA nso_ZA oc_FR om_ET om_KE or_IN os_RU pa_IN pa_PK pl_PL ps_AF pt_BR pt_PT ro_RO ru_RU ru_UA rw_RW sa_IN sat_IN sc_IT sd_IN se_NO shs_CA sid_ET si_LK sk_SK sl_SI so_DJ so_ET so_KE so_SO sq_AL sq_MK sr_ME sr_RS ss_ZA st_ZA sv_FI sv_SE sw_KE sw_TZ szl_PL ta_IN ta_LK te_IN tg_TJ th_TH ti_ER ti_ET tig_ER tk_TM tl_PH tn_ZA tr_CY tr_TR ts_ZA tt_RU ug_CN uk_UA unm_US ur_IN ur_PK uz_UZ ve_ZA vi_VN wa_BE wae_CH wal_ET wo_SN xh_ZA yi_US yo_NG yue_HK zh_CN zh_HK zh_SG zh_TW zu_ZA
这样构建出来的 alpine 镜像就是 en_US.UTF-8 的编码环境
2、构建镜像
$ docker build -t utf8-alpine . ……
3、运行构建的镜像，查看编码环境
$ docker run -itd utf8-alpine sh $ docker exec -it d830c8e49b1c sh /opt # env LANGUAGE=en_US.UTF-8 HOSTNAME=d830c8e49b1c SHLVL=1 HOME=/root TERM=xterm PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/java/jdk/bin LANG=en_US.UTF-8 PWD=/opt JAVA_HOME=/usr/java/jdk /opt # /usr/glibc-compat/bin/locale -a …… zh_CN.utf8 zh_HK.utf8 zh_SG.utf8 zh_TW.utf8 zu_ZA.utf8
修改完后 java 日志中的中文也已经正常显示：
