极力推荐大佬的java项目的博客

此次说明：这是我从码云上拉取下来的java项目，仅供试验说明，不做任何获利渠道，若是发现有人拿此做其他用处，需像码云上这位大佬说明，特此感谢！！！

准备工作：

    安装 maven，jdk1.8，下载项目（DBlog），mysql，redis，git

下载Maven 3安装包官网：http://maven.apache.org/download.cgi

清华镜像：https://mirrors.tuna.tsinghua.edu.cn/apache/maven/

老夫下载好的软件=====>>>>>链接：https://pan.baidu.com/s/1jHYfVGKOEM4WuU9OOaEvYQ      提取码：uutl

安装Maven

[root@localhost opt]#tar xf apache‐maven‐3.3.9‐bin.tar.gz
[root@localhost opt]# mv apache-maven-3.3.9 /usr/local/maven

编辑/etc/profile文件

export PATH=/usr/local/maven/bin:$PATH
source /etc/profile

检查版本信息

[root@localhost /]# mvn -v
Apache Maven 3.3.9 (bb52d8502b132ec0a5a3f4c09453c07478323dc5; 2015-11-11T00:41:47+08:00)
Maven home: /usr/local/maven
Java version: 1.8.0_181, vendor: Oracle Corporation
Java home: /usr/java/jdk1.8.0_181-amd64/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "3.10.0-693.el7.x86_64", arch: "amd64", family: "unix"

安装jdk1.8版本（只要是1.8即可，随便那种方式安装都行）

[root@localhost /]# rpm -ivh jdk-8u181-linux-x64.rpm
warning: jdk-8u181-linux-x64.rpm: Header V3 RSA/SHA256 Signature, key ID ec551f03: NOKEY
Preparing...                          ################################# [100%]
Updating / installing...
   1:jdk1.8-2000:1.8.0_181-fcs        ################################# [100%]
Unpacking JAR files...
        tools.jar...
        plugin.jar...
        javaws.jar...
        deploy.jar...
        rt.jar...
        jsse.jar...
        charsets.jar...
        localedata.jar...

　查看版本安装是否成功

[root@localhost /]# java -version
java version "1.8.0_181"
Java(TM) SE Runtime Environment (build 1.8.0_181-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.181-b13, mixed mode)　

在码云上下载博客资源

特别说明：获取资源链接地址，开始下载，有安装git的可以使用git clone+链接的方式下载，没有的话只能安装git因为链接资源是git文件，其他方式下载打不开的

这里安装并设置下git，然后下载项目资源

[root@localhost opt]#  yum -y install git
[root@localhost opt]# git init     #初始化仓库，不过注意此仓库不要有其他文件
[root@localhost opt]# git clone https://gitee.com/yadong.zhang/DBlog.git    #https这就是从码云上获取的链接
Cloning into 'DBlog'...
remote: Enumerating objects: 6356, done.
remote: Counting objects: 100% (6356/6356), done.
remote: Compressing objects: 100% (3022/3022), done.
remote: Total 6356 (delta 3147), reused 4916 (delta 2417)
Receiving objects: 100% (6356/6356), 6.87 MiB | 3.32 MiB/s, done.
Resolving deltas: 100% (3147/3147), done.
[root@localhost opt]# ls
DBlog

将下载地址换成阿里云

原因：因为原地址是国外的，对于我们来说获取资源太慢，所以换成了国内的，比如阿里云

[root@localhost opt]# cd /usr/local/maven/conf/
[root@localhost conf]# ls
logging  settings.xml  toolchains.xml
[root@localhost conf]# cp settings.xml settings.xml.bak
[root@localhost conf]# vim settings.xml          ####将下面这段代码复制到相应代码行即可
<mirror>
<id>nexus-aliyun</id>
<mirrorOf>*</mirrorOf>
<name>Nexus aliyun</name>
<url>http://maven.aliyun.com/nexus/content/groups/public</url>
</mirror>

　　

安装mysql，redis并配置 

　先配置mysql

[root@localhost opt]# mkdir /app
将mysql二进制包放进来后解压
[root@localhost app]# tar -xf mysql-5.7.20-linux-glibc2.12-x86_64.tar.gz
改名
[root@localhost app]# mv mysql-5.7.20-linux-glibc2.12-x86_64/ mysql
设置变量
[root@localhost app]# vim /etc/profile
export PATH=/app/mysql/bin:$PATH
激活变量
[root@localhost app]# source /etc/profile
查看版本，意味着变量设置成功
[root@localhost app]# mysql -V
mysql  Ver 14.14 Distrib 5.7.20, for linux-glibc2.12 (x86_64) using  EditLine wrapper

添加mysql用户，设置授权目录并初始化

[root@localhost app]# useradd mysql
[root@localhost app]# mkdir /data/mysql -p
[root@localhost app]# chown -R mysql.mysql /app/*
[root@localhost app]# chown -R mysql.mysql /data/*
[root@localhost app]# mysqld --initialize-insecure  --user=mysql --basedir=/app/mysql --datadir=/data/mysql
2019-05-01T16:11:19.720627Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2019-05-01T16:11:23.737783Z 0 [Warning] InnoDB: New log files created, LSN=45790
2019-05-01T16:11:24.729527Z 0 [Warning] InnoDB: Creating foreign key constraint system tables.
2019-05-01T16:11:24.842128Z 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: c48c1c90-6c2b-11e9-9c15-000c291d19ad.
2019-05-01T16:11:24.843849Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened.
2019-05-01T16:11:24.846586Z 1 [Warning] root@localhost is created with an empty password ! Please consider switching off the --initialize-insecure option.
[root@localhost app]# cd /data/mysql/
[root@localhost mysql]# ll
total 110628
-rw-r-----. 1 mysql mysql       56 May  2 00:11 auto.cnf
-rw-r-----. 1 mysql mysql      419 May  2 00:11 ib_buffer_pool
-rw-r-----. 1 mysql mysql 12582912 May  2 00:11 ibdata1
-rw-r-----. 1 mysql mysql 50331648 May  2 00:11 ib_logfile0
-rw-r-----. 1 mysql mysql 50331648 May  2 00:11 ib_logfile1
drwxr-x---. 2 mysql mysql     4096 May  2 00:11 mysql
drwxr-x---. 2 mysql mysql     8192 May  2 00:11 performance_schema
drwxr-x---. 2 mysql mysql     8192 May  2 00:11 sys

添加配置文件

[root@localhost mysql]# vim /etc/my.cnf
[root@localhost mysql]# mv /etc/my.cnf /opt/my.cnf.bak
[root@localhost mysql]# vim /etc/my.cnf
[mysqld]
user=mysql
basedir=/app/mysql
datadir=/data/mysql
server_id=6
port=3306
socket=/tmp/mysql.sock
[mysql]
socket=/tmp/mysql.sock
prompt=3306 [\\d]>
[root@localhost mysql]# cp /app/mysql/support-files/mysql.server /etc/init.d/mysqld
[root@localhost mysql]# service mysqld start|stop|restart    ###这里和上一步是为了使用service命令控制服务，
[root@localhost mysql]# vim /etc/systemd/system/mysqld.service      ###如果上面的方式不爽，想用systemctl命令需要这样设置

[Unit]
Description=MySQL Server
Documentation=man:mysqld(8)
Documentation=http://dev.mysql.com/doc/refman/en/using-systemd.html
After=network.target
After=syslog.target
[Install]
WantedBy=multi-user.target
[Service]
User=mysql
Group=mysql
ExecStart=/app/mysql/bin/mysqld --defaults-file=/etc/my.cnf
LimitNOFILE = 5000
[root@localhost mysql]# mysqladmin -uroot -p password 123456
Enter password:             ###这里直接回车，因为初始状态没设置密码
mysqladmin: [Warning] Using a password on the command line interface can be insecure.
Warning: Since password will be sent to server in plain text, use ssl connection to ensure password safety.
在mysql中创建dblog库即可；    ##这里是项目需要dblog数据库
3306 [(none)]>create database dblog charset utf8mb4;
Query OK, 1 row affected (0.00 sec)
3306 [(none)]>
[root@localhost ~]# mysql -uroot -p123456 dblog < /opt/DBlog/docs/db/dblog.sql
mysql: [Warning] Using a password on the command line interface can be insecure.
[root@localhost ~]# mysql -uroot -p123456 dblog < /opt/DBlog/docs/db/init_data.sql
mysql: [Warning] Using a password on the command line interface can be insecure.　

　安装配置redis

 yum -y install redis
[root@localhost opt]# vim /etc/redis.conf   #编辑之前做好这个文件的备份，别问我为什么，这是运维的基本素养
61 bind 192.168.171.144       ###这个61是行数，设置服务器的ip，不要使用127.0.0.1的地址
479 equirepass 123456          ###479是行数，设置密码
root@localhost opt]# systemctl restart redis
[root@localhost opt]# ps -ef |grep redis
redis     13042      1  0 00:52 ?        00:00:00 /usr/bin/redis-server 192.168.171.144:6379
root      13047   2452  0 00:52 pts/1    00:00:00 grep --color=auto redis

　　

　对项目开始动手了

[root@localhost config]# pwd
/opt/DBlog/blog-core/src/main/resources/config
[root@localhost config]# ll
total 12
-rw-r--r--. 1 root root 855 May  1 23:44 application-center-dev.yml
-rw-r--r--. 1 root root 855 May  1 23:44 application-center-test.yml
-rw-r--r--. 1 root root 190 May  1 23:44 application-center.yml
[root@localhost config]# vim application-center-dev.yml       #只需修改数据库的密码，redis的链接地址和密码即可
[root@localhost config]# vim application-center-test.yml      #该文件和上面文件修改完全一样，只截一张图说明

　

项目根目录下执行mvn -X clean package -Dmaven.test.skip=true -Ptest编译打包（注：-Ptest中的test为环境标识），然后cd到blog-web目录下执行java -jar target/blog-web.jar

[root@localhost DBlog]# ll
total 80
drwxr-xr-x. 4 root root    64 May  2 01:08 blog-admin
drwxr-xr-x. 4 root root    64 May  2 01:07 blog-core
drwxr-xr-x. 4 root root    64 May  2 01:06 blog-file
drwxr-xr-x. 4 root root    64 May  2 01:07 blog-web
-rw-r--r--. 1 root root   138 May  1 23:44 build.sh
-rw-r--r--. 1 root root  1341 May  1 23:44 contribution.md
-rw-r--r--. 1 root root  1088 May  1 23:44 demo.md
drwxr-xr-x. 4 root root    94 May  1 23:44 docs
-rw-r--r--. 1 root root 35119 May  1 23:44 LICENSE
-rw-r--r--. 1 root root  7064 May  1 23:44 pom.xml
-rw-r--r--. 1 root root 10497 May  1 23:44 README.md
-rw-r--r--. 1 root root  8962 May  1 23:44 update.md
[root@localhost DBlog]# mvn -X clean package -Dmaven.test.skip=true -Ptest
前面省略
。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。
[DEBUG]   (f) outputDirectory = /opt/DBlog/blog-admin/target
[DEBUG]   (f) project = MavenProject: com.zyd:blog-admin:2.2.1 @ /opt/DBlog/blog-admin/pom.xml
[DEBUG]   (f) skip = false
[DEBUG] -- end configuration --
[INFO] Layout: JAR
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] blog ............................................... SUCCESS [  6.824 s]
[INFO] blog-file .......................................... SUCCESS [ 53.569 s]
[INFO] blog-core .......................................... SUCCESS [ 54.581 s]
[INFO] blog-web ........................................... SUCCESS [ 27.854 s]
[INFO] blog-admin ......................................... SUCCESS [  6.076 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 02:36 min
[INFO] Finished at: 2019-05-02T01:08:16+08:00
[INFO] Final Memory: 59M/212M
[INFO] ------------------------------------------------------------------------

　开启项目的前端和后台

[root@localhost DBlog]# cd blog-web/
[root@localhost blog-web]# ls
pom.xml  src  target
[root@localhost blog-web]# ll
total 4
-rw-r--r--. 1 root root 1575 May  1 23:44 pom.xml
drwxr-xr-x. 4 root root   30 May  1 23:44 src
drwxr-xr-x. 6 root root  137 May  2 01:08 target
[root@localhost blog-web]# java -jar target/blog-web.jar  &     ###前端

[root@localhost DBlog]# cd blog-admin/
[root@localhost blog-admin]# ll
total 4
-rw-r--r--. 1 root root 1942 May  1 23:44 pom.xml
drwxr-xr-x. 4 root root   30 May  1 23:44 src
drwxr-xr-x. 6 root root  141 May  2 01:08 target
[root@localhost blog-web]# java -jar target/blog-admin.jar &     ###后台

　　测试环节：浏览器访问http://127.0.0.1:8443   这是前端

浏览器检查：

浏览器访问http://127.0.0.1:8443       这是后台

　

浏览器检查（登录用户admin。密码123456）

事实上，上面的命令仅能保证xshell不退出有效，一旦退出自动杀掉了进程，所以为了退出xhsell进程不杀死java进程，可以使用下面的命令。

在主目录下使用下面两条命令，可以自定义访问端口，并且安全的放在后台
nohup java -jar blog-web/target/blog-web.jar --server.port=8000  2>&1 &
nohup java -jar blog-admin/target/blog-admin-2.2.1.jar  --server.port=8001  2>&1 &

后话：当我们去点击无论是前端还是以后台时，服务器内部的日志信息会刷新，提示写入redis缓存当中，等等这些，大有搞头，小伙伴们有兴趣可以试试。