连接数据库:
mysql -hrm-uf6b23117l3s5t69zjo.mysql.rds.aliyuncs.com -uwswl -pwswl@2019
显示用户:
show databases;
打开用户:
use mysql;
设置密码:
ALTER USER wswl IDENTIFIED BY '1qaz2wsx';
原始密码:*C251A941C808DD5E507DF2415BAEAC40647FE880
tomcat启动并打印日志:
./startup.sh; tailf ../logs/catalina.out
强制关闭端口:
netstat -apn | grep 8080
kill -9 pid
set java environment:
JAVA_HOME=/usr/local/java/jdk8
JRE_HOME=/usr/local/java/jdk8/jre
CLASS_PATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib
PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin
export JAVA_HOME JRE_HOME CLASS_PATH PATH
nginx 环境:
在线安装:yum install nginx -y
找到nginx.conf: whereis nginx.conf
/etc/nginx/nginx.conf中在http中改为如下代码
server {
listen 80 default_server;
listen [::]:80 default_server;
server_name 127.0.0.1:8080;
root /usr/share/nginx/html;
include /etc/nginx/default.d/*.conf;
location / {
proxy_pass http://127.0.0.1:8080;
}
error_page 404 /404.html;
location = /40x.html {
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
}
}
查看文件是否报错:nginx -t -c /etc/nginx/nginx.conf
nginx.conf文件的路径可以从nginx -t的返回中找到:nginx -c /etc/nginx/nginx.conf
开启:nginx -s reload
nginx默认上传文件的大小是1M,/etc/nginx/nginx.conf中的http{}段中加入client_max_body_size 20m。设置上传文件大小为20M
mongodb子线程不能启动
rm usr/local/mongo/mongo/data/db/mongod.lock
重新启动:./mongod -f mongodb.conf
kafka启动:
./bin/zookeeper-server-start.sh config/zookeeper.properties 1>/dev/null 2>&1 &
./bin/kafka-server-start.sh config/server.properties 1>/dev/null 2>&1 &
本机生产者、消费者测试:
./kafka-console-producer.sh --broker-list localhost:9092 --topic test
./kafka-console-consumer.sh --bootstrap-server localhost:9092 --topic test --from-beginning
外网访问权限 :
放开:listeners=PLAINTEXT://:9092
添加:host.name=101.133.164.24
放开并添加外网ip:advertised.listeners=PLAINTEXT://101.133.164.24:9092