[转]mysql-mmm集群（多实例）
一、需求说明
最近一直在学习mysql-mmm，想以后这个架构也能用在我们公司的业务上，我们公司的业务是单机多实例部署，所以也想把mysql-mmm部署成这样，功夫不负有心人，我成功了，和大家分享一下：
二、环境说明
| 集群 | 角色 | 主机名 | IP | Mysql Port | Server ID | VIP Writer | VIP READER |
| navy2 | Agent | db1 | 172.28.26.101 | 3307 | 11 | 172.28.26.107 | |
| navy3 |
Agent
|
db2 | 172.28.26.102 | 3308 | 1 | |
172.28.26.110
|
| navy2 |
Agent
|
db1 |
172.28.26.101
|
3307 | 22 | |
172.28.26.108
|
| navy3 |
Agent
|
db2 |
172.28.26.102
|
3308 | 2 |
172.28.26.109
|
|
| navy2/navy3 | Monitor |
Monitor
|
172.28.26.103
|
| | | |
PS：db1和db2上分别有两个库navy2和navy3，互为主主，172.28.26.107是navy2的写入虚拟IP，172.28.26.108是navy2的读虚拟IP，172.28.26.109是navy2的写入虚拟IP，172.28.26.110是navy3的读虚拟IP。
三、部署
1、mysql和mysql-mmm的安装及mysql的主从配置请查看前面的博文：http://navyaijm.blog.51cto.com/4647068/1230674，这里只介绍mmm多实例配置。
2、db1上：
vi /etc/mysql-mmm/mmm_common_navy2.conf（navy2的配置文件）
vi /etc/mysql-mmm/mmm_common_navy2.conf
active_master_role writer
<host default>
cluster_interface eth1
agent_port 9912
mysql_port 3307
pid_path /var/run/mysql-mmm/mmm_agentd_navy2.pid
bin_path /usr/libexec/mysql-mmm/
replication_user slave
replication_password 123456
agent_user mmm_agent
agent_password 123456
</host>
<host db1>
ip 172.28.26.101
mysql_port 3307
mode master
peer db2
</host>
<host db2>
ip 172.28.26.102
mysql_port 3307
mode master
peer db1
</host>
<role writer>
hosts db1, db2
ips 172.28.26.107
mode exclusive
</role>
<role reader>
hosts db1, db2
ips 172.28.26.108
mode balanced
</role>
vi /etc/mysql-mmm/mmm_common_navy3.conf（navy的配置文件）
active_master_role writer
<host default>
cluster_interface eth1
agent_port 9913
mysql_port 3308
pid_path /var/run/mysql-mmm/mmm_agentd_navy3.pid
bin_path /usr/libexec/mysql-mmm/
replication_user slave
replication_password 123456
agent_user mmm_agent
agent_password 123456
</host>
<host db1>
ip 172.28.26.101
mysql_port 3308
mode master
peer db2
</host>
<host db2>
ip 172.28.26.102
mysql_port 3308
mode master
peer db1
</host>
<role writer>
hosts db1, db2
ips 172.28.26.109
mode exclusive
</role>
<role reader>
hosts db1, db2
ips 172.28.26.110
mode balanced
</role>
vi /etc/mysql-mmm/mmm_agent_navy2.conf（navy2的agent配置文件）
include mmm_common_navy2.conf
this db1
vi /etc/mysql-mmm/mmm_agent_navy3.conf（navy3的agent配置文件）
include mmm_common_navy3.conf
this db1
vi /etc/init.d/mysql-mmm-agent-navy2（navy2的agent启动脚本）
#!/bin/sh
# chkconfig: - 64 36
# description: MMM Agent.
# processname: mmm_agentd
# config: /etc/mysql-mmm/mmm_agent.conf
# pidfile: /var/run/mysql-mmm/mmm_agentd.pid
# Source function library and defaults file.
. /etc/rc.d/init.d/functions
. /etc/default/mysql-mmm-agent
# Cluster name (it can be empty for default cases)
CLUSTER='navy2'
LOCKFILE='/var/lock/subsys/mysql-mmm-agent_navy2'
prog='MMM Agent Daemon'
#-----------------------------------------------------------------------
# Paths
if [ "$CLUSTER" != "" ]; then
MMMD_AGENT_BIN="/usr/sbin/mmm_agentd @$CLUSTER"
MMMD_AGENT_PIDFILE="/var/run/mysql-mmm/mmm_agentd_$CLUSTER.pid"
else
MMMD_AGENT_BIN="/usr/sbin/mmm_agentd"
MMMD_AGENT_PIDFILE="/var/run/mysql-mmm/mmm_agentd.pid"
fi
start() {
if [ "${ENABLED}" != "1" ]; then
echo "$prog is disabled!"
exit 1
fi
echo -n "Starting $prog: "
if [ -s $MMMD_AGENT_PIDFILE ] && kill -0 `cat $MMMD_AGENT_PIDFILE` 2> /dev/null; then
echo " already running."
exit 0
fi
daemon $MMMD_AGENT_BIN
RETVAL=$?
echo
[ $RETVAL = 0 ] && touch $LOCKFILE
return $RETVAL
}
stop() {
# Stop daemon.
echo -n "Stopping $prog: "
killproc -p $MMMD_AGENT_PIDFILE $MMMD_AGENT_BIN
RETVAL=$?
echo
[ $RETVAL = 0 ] && rm -f $LOCKFILE
return $RETVAL
}
case "$1" in
start)
start
;;
stop)
stop
;;
status)
status -p $MMMD_AGENT_PIDFILE $MMMD_AGENT_BIN
RETVAL=$?
;;
restart|reload)
stop
start
;;
condrestart)
if [ -f $LOCKFILE ]; then
stop
start
fi
;;
*)
echo "Usage: $0 {start|stop|restart|condrestart|status}"
;;
esac
exit $RETVAL
赋予执行权限：
chmod +x /etc/init.d/mysql-mmm-agent-navy2
vi /etc/init.d/mysql-mmm-agent-navy3（navy3的agent启动脚本）
#!/bin/sh
# chkconfig: - 64 36
# description: MMM Agent.
# processname: mmm_agentd
# config: /etc/mysql-mmm/mmm_agent.conf
# pidfile: /var/run/mysql-mmm/mmm_agentd.pid
# Source function library and defaults file.
. /etc/rc.d/init.d/functions
. /etc/default/mysql-mmm-agent
## Paths
#MMMD_AGENT_BIN="/usr/sbin/mmm_agentd"
#MMMD_AGENT_PIDFILE="/var/run/mysql-mmm/mmm_agentd.pid"
#LOCKFILE='/var/lock/subsys/mysql-mmm-agent'
#prog='MMM Agent Daemon'
# Cluster name (it can be empty for default cases)
CLUSTER='navy3'
LOCKFILE='/var/lock/subsys/mysql-mmm-agent_navy3'
prog='MMM Agent Daemon'
#-----------------------------------------------------------------------
# Paths
if [ "$CLUSTER" != "" ]; then
MMMD_AGENT_BIN="/usr/sbin/mmm_agentd @$CLUSTER"
MMMD_AGENT_PIDFILE="/var/run/mysql-mmm/mmm_agentd_$CLUSTER.pid"
else
MMMD_AGENT_BIN="/usr/sbin/mmm_agentd"
MMMD_AGENT_PIDFILE="/var/run/mysql-mmm/mmm_agentd.pid"
fi
start() {
if [ "${ENABLED}" != "1" ]; then
echo "$prog is disabled!"
exit 1
fi
echo -n "Starting $prog: "
if [ -s $MMMD_AGENT_PIDFILE ] && kill -0 `cat $MMMD_AGENT_PIDFILE` 2> /dev/null; then
echo " already running."
exit 0
fi
daemon $MMMD_AGENT_BIN
RETVAL=$?
echo
[ $RETVAL = 0 ] && touch $LOCKFILE
return $RETVAL
}
stop() {
# Stop daemon.
echo -n "Stopping $prog: "
killproc -p $MMMD_AGENT_PIDFILE $MMMD_AGENT_BIN
RETVAL=$?
echo
[ $RETVAL = 0 ] && rm -f $LOCKFILE
return $RETVAL
}
case "$1" in
start)
start
;;
stop)
stop
;;
status)
status -p $MMMD_AGENT_PIDFILE $MMMD_AGENT_BIN
RETVAL=$?
;;
restart|reload)
stop
start
;;
condrestart)
if [ -f $LOCKFILE ]; then
stop
start
fi
;;
*)
echo "Usage: $0 {start|stop|restart|condrestart|status}"
;;
esac
exit $RETVAL
赋予可执行权限：
chmod +x /etc/init.d/mysql-mmm-agent-navy3
启动服务：
/etc/init.d/mysql-mmm-agent-navy2 start
/etc/init.d/mysql-mmm-agent-navy3 start
3、db2上：
复制db1上的文件到相应的目录下：
scp /etc/mysql-mmm/mmm_common_navy2.conf 172.28.26.102:/etc/mysql-mmm/
scp /etc/mysql-mmm/mmm_common_navy3.conf 172.28.26.102:/etc/mysql-mmm/
scp /etc/mysql-mmm/mmm_agent_navy2.conf 172.28.26.102:/etc/mysql-mmm/
scp /etc/mysql-mmm/mmm_agent_navy3.conf 172.28.26.102:/etc/mysql-mmm/
scp /etc/init.d/mysql-mmm-agent-navy2 172.28.26.102:/etc/init.d/
scp /etc/init.d/mysql-mmm-agent-navy3 172.28.26.102:/etc/init.d/
修改agent配置文件：
sed -i 's/this db1/this db2/' /etc/mysql-mmm/mmm_agent_navy2.conf
sed -i 's/this db1/this db2/' /etc/mysql-mmm/mmm_agent_navy3.conf
赋予可执行权限
chmod +x /etc/init.d/mysql-mmm-agent-navy2
chmod +x /etc/init.d/mysql-mmm-agent-navy3
启动服务：
/etc/init.d/mysql-mmm-agent-navy2 start
/etc/init.d/mysql-mmm-agent-navy3 start
4、monitor上
复制db1上的配置文件：
scp /etc/mysql-mmm/mmm_common_navy2.conf 172.28.26.103:/etc/mysql-mmm/
scp /etc/mysql-mmm/mmm_common_navy3.conf 172.28.26.103:/etc/mysql-mmm/
vi /etc/mysql-mmm/mmm_mon_navy2.conf
include mmm_common_navy2.conf
<monitor>
ip 127.0.0.1
port 9992
pid_path /var/run/mysql-mmm/mmm_mond_navy2.pid
bin_path /usr/libexec/mysql-mmm
status_path /var/lib/mysql-mmm/mmm_mond_navy2.status
ping_ips 172.28.26.101,172.28.26.102
auto_set_online 10
# wait_for_other_master 2
# The kill_host_bin does not exist by default, though the monitor will
# throw a warning about it missing. See the section 5.10 "Kill Host
# Functionality" in the PDF documentation.
#
# kill_host_bin /usr/libexec/mysql-mmm/monitor/kill_host
#
</monitor>
<host default>
monitor_user mmm_monitor
monitor_password 123456
</host>
debug 0
vi /etc/mysql-mmm/mmm_mon_navy3.conf
include mmm_common_navy3.conf
<monitor>
ip 127.0.0.1
port 9993
pid_path /var/run/mysql-mmm/mmm_mond_navy3.pid
bin_path /usr/libexec/mysql-mmm
status_path /var/lib/mysql-mmm/mmm_mond_navy3.status
ping_ips 172.28.26.101,172.28.26.102
auto_set_online 10
# wait_for_other_master 2
# The kill_host_bin does not exist by default, though the monitor will
# throw a warning about it missing. See the section 5.10 "Kill Host
# Functionality" in the PDF documentation.
#
# kill_host_bin /usr/libexec/mysql-mmm/monitor/kill_host
#
</monitor>
<host default>
monitor_user mmm_monitor
monitor_password 123456
</host>
debug 0
vi /etc/mysql-mmm/mmm_mon_log_navy2.conf
#log4perl.logger = FATAL, MMMLog, MailFatal
log4perl.logger = FATAL, MMMLog
log4perl.appender.MMMLog = Log::Log4perl::Appender::File
log4perl.appender.MMMLog.Threshold = INFO
log4perl.appender.MMMLog.filename = /var/log/mysql-mmm/mmm_mond_navy2.log
log4perl.appender.MMMLog.recreate = 1
log4perl.appender.MMMLog.layout = PatternLayout
log4perl.appender.MMMLog.layout.ConversionPattern = %d %5p %m%n
#log4perl.appender.MailFatal = Log::Dispatch::Email::MailSender
#log4perl.appender.MailFatal.Threshold = FATAL
#log4perl.appender.MailFatal.from = mmm@example.com
#log4perl.appender.MailFatal.to = root
#log4perl.appender.MailFatal.buffered = 0
#log4perl.appender.MailFatal.subject = FATAL error in mysql-mmm-monitor
#log4perl.appender.MailFatal.layout = PatternLayout
#log4perl.appender.MailFatal.layout.ConversionPattern = %d %m%n
vi /etc/mysql-mmm/mmm_mon_log_navy3.conf
#log4perl.logger = FATAL, MMMLog, MailFatal
log4perl.logger = FATAL, MMMLog
log4perl.appender.MMMLog = Log::Log4perl::Appender::File
log4perl.appender.MMMLog.Threshold = INFO
log4perl.appender.MMMLog.filename = /var/log/mysql-mmm/mmm_mond_navy3.log
log4perl.appender.MMMLog.recreate = 1
log4perl.appender.MMMLog.layout = PatternLayout
log4perl.appender.MMMLog.layout.ConversionPattern = %d %5p %m%n
#log4perl.appender.MailFatal = Log::Dispatch::Email::MailSender
#log4perl.appender.MailFatal.Threshold = FATAL
#log4perl.appender.MailFatal.from = mmm@example.com
#log4perl.appender.MailFatal.to = root
#log4perl.appender.MailFatal.buffered = 0
#log4perl.appender.MailFatal.subject = FATAL error in mysql-mmm-monitor
#log4perl.appender.MailFatal.layout = PatternLayout
#log4perl.appender.MailFatal.layout.ConversionPattern = %d %m%n
vi /etc/init.d/mysql-mmm-monitor-navy2
#!/bin/sh
#
# mysql-mmm-monitor This shell script takes care of starting and stopping
# the mmm monitoring daemon.
#
# chkconfig: - 64 36
# description: MMM Monitor.
# processname: mmm_mond
# config: /etc/mysql-mmm/mmm_mon.conf
# pidfile: /var/run/mysql-mmm/mmm_mond.pid
# Source function library and defaults file.
. /etc/rc.d/init.d/functions
. /etc/default/mysql-mmm-monitor
# Cluster name (it can be empty for default cases)
CLUSTER='navy2'
LOCKFILE='/var/lock/subsys/mysql-mmm-monitor_navy2'
prog='MMM Monitor Daemon'
if [ "$CLUSTER" != "" ]; then
MMMD_MON_BIN="/usr/sbin/mmm_mond @$CLUSTER"
MMMD_MON_PIDFILE="/var/run/mysql-mmm/mmm_mond-$CLUSTER.pid"
else
MMMD_MON_BIN="/usr/sbin/mmm_mond"
MMMD_MON_PIDFILE="/var/run/mysql-mmm/mmm_mond.pid"
fi
start() {
if [ "${ENABLED}" != "1" ]; then
echo "$prog is disabled!"
exit 1
fi
echo -n "Starting $prog: "
if [ -s $MMMD_MON_PIDFILE ] && kill -0 `cat $MMMD_MON_PIDFILE` 2> /dev/null; then
echo " already running."
exit 0
fi
daemon $MMMD_MON_BIN
RETVAL=$?
echo
[ $RETVAL = 0 ] && touch $LOCKFILE
return $RETVAL
}
stop() {
# Stop daemon.
echo -n "Stopping $prog: "
killproc -p $MMMD_MON_PIDFILE $MMMD_MON_BIN
RETVAL=$?
echo
[ $RETVAL = 0 ] && rm -f $LOCKFILE
return $RETVAL
}
case "$1" in
start)
start
;;
stop)
stop
;;
status)
status -p $MMMD_MON_PIDFILE $MMMD_MON_BIN
RETVAL=$?
;;
restart|reload)
stop
start
;;
condrestart)
if [ -f $LOCKFILE ]; then
stop
start
fi
;;
*)
echo "Usage: $0 {start|stop|restart|condrestart|status}"
;;
esac
exit $RETVAL
vi /etc/init.d/mysql-mmm-monitor-navy3
#!/bin/sh
#
# mysql-mmm-monitor This shell script takes care of starting and stopping
# the mmm monitoring daemon.
#
# chkconfig: - 64 36
# description: MMM Monitor.
# processname: mmm_mond
# config: /etc/mysql-mmm/mmm_mon.conf
# pidfile: /var/run/mysql-mmm/mmm_mond.pid
# Source function library and defaults file.
. /etc/rc.d/init.d/functions
. /etc/default/mysql-mmm-monitor
# Cluster name (it can be empty for default cases)
CLUSTER='navy3'
LOCKFILE='/var/lock/subsys/mysql-mmm-monitor_navy3'
prog='MMM Monitor Daemon'
if [ "$CLUSTER" != "" ]; then
MMMD_MON_BIN="/usr/sbin/mmm_mond @$CLUSTER"
MMMD_MON_PIDFILE="/var/run/mysql-mmm/mmm_mond-$CLUSTER.pid"
else
MMMD_MON_BIN="/usr/sbin/mmm_mond"
MMMD_MON_PIDFILE="/var/run/mysql-mmm/mmm_mond.pid"
fi
start() {
if [ "${ENABLED}" != "1" ]; then
echo "$prog is disabled!"
exit 1
fi
echo -n "Starting $prog: "
if [ -s $MMMD_MON_PIDFILE ] && kill -0 `cat $MMMD_MON_PIDFILE` 2> /dev/null; then
echo " already running."
exit 0
fi
daemon $MMMD_MON_BIN
RETVAL=$?
echo
[ $RETVAL = 0 ] && touch $LOCKFILE
return $RETVAL
}
stop() {
# Stop daemon.
echo -n "Stopping $prog: "
killproc -p $MMMD_MON_PIDFILE $MMMD_MON_BIN
RETVAL=$?
echo
[ $RETVAL = 0 ] && rm -f $LOCKFILE
return $RETVAL
}
case "$1" in
start)
start
;;
stop)
stop
;;
status)
status -p $MMMD_MON_PIDFILE $MMMD_MON_BIN
RETVAL=$?
;;
restart|reload)
stop
start
;;
condrestart)
if [ -f $LOCKFILE ]; then
stop
start
fi
;;
*)
echo "Usage: $0 {start|stop|restart|condrestart|status}"
;;
esac
exit $RETVAL
赋予可执行权限：
chmod +x /etc/init.d/mysql-mmm-monitor-navy2
chmod +x /etc/init.d/mysql-mmm-monitor-navy3
启动监控服务：
/etc/init.d/mysql-mmm-monitor-navy2 start
/etc/init.d/mysql-mmm-monitor-navy3 start
结果
[root@monitor ~]# mmm_control show
db1(172.28.26.101) master/ONLINE. Roles: writer(172.28.26.104)
db2(172.28.26.102) master/ONLINE. Roles:
db3(172.28.26.188) slave/ONLINE. Roles: reader(172.28.26.105)
db4(172.28.26.189) slave/ONLINE. Roles: reader(172.28.26.106)
[root@monitor ~]# mmm_control @navy2 show
db1(172.28.26.101) master/ONLINE. Roles: writer(172.28.26.107)
db2(172.28.26.102) master/ONLINE. Roles: reader(172.28.26.108)
[root@monitor ~]# mmm_control @navy3 show
db1(172.28.26.101) master/ONLINE. Roles: writer(172.28.26.109)
db2(172.28.26.102) master/ONLINE. Roles: reader(172.28.26.110)
[root@monitor ~]#
[转]mysql-mmm集群（多实例）的更多相关文章
- 多图文，详细介绍mysql各个集群方案
目录 多图文,详细介绍mysql各个集群方案 一,mysql原厂出品 二,mysql第三方优化 三,依托硬件配合 四,其它 多图文,详细介绍mysql各个集群方案 集群的好处 高可用性:故障检测及迁移 ...
- MySQL分布式集群之MyCAT(转)
原文地址:http://blog.itpub.net/29510932/viewspace-1664499/ 隔了好久,才想起来更新博客,最近倒腾的数据库从Oracle换成了MySQL,研究了一段时间 ...
- MySQL Cluster 集群
本文转载 http://www.cnblogs.com/gomysql/p/3664783.html MySQL Cluster是一个基于NDB Cluster存储引擎的完整的分布式数据库系统.不仅仅 ...
- 基于keepalived搭建MySQL热机集群
背景 MySQL的高可用方案一般有如下几种: keepalived+双主,MHA,MMM,Heartbeat+DRBD,PXC,Galera Cluster 比较常用的是keepalived+双主,M ...
- MySQL分布式集群之MyCAT（一）简介【转】
隔了好久,才想起来更新博客,最近倒腾的数据库从Oracle换成了MySQL,研究了一段时间,感觉社区版的MySQL在各个方面都逊色于Oracle,Oracle真的好方便!好了,不废话,这次准备记录一些 ...
- mysql各种集群的优缺点
mysql各种集群的优缺点 1.主从架构:只是有数据备份的功能: 2.主主互备+keepalived:实现数据备份加高可用: 3.主主互备,主主下面分别挂个从: 4.A和B主主互备,把从库都挂到B下, ...
- 《综合》MMM集群
<综合>MMM集群 部署集群基础环境 MySQL-MMM架构部署 MySQL-MMM架构使用 1 部署集群基础环境 1.1 问题 本案例要求为MySQL集群准备基础环境,完成以下任务操作: ...
- Shell脚本实现---Swarm集群部署实例（Swarm Cluster）
Shell脚本实现---Swarm集群部署实例(Swarm Cluster) 一.机器环境(均是centos7.8) IP hostname 角色 192.168.10.200 manager-swa ...
- MySQL数据库集群进行正确配置步骤
MySQL数据库集群进行正确配置步骤 2010-06-09 10:47 arrowcat 博客园 字号:T | T 我们今天是要和大家一起分享的是对MySQL数据库集群进行正确配置,我前两天在相关网站 ...
- Facebook揭密：如何让MySQL数据库集群自主运行
Facebook运行着全球最大的MySQL数据库集群,该集群分布在两个大洲上的多个数据中心中数以千计的服务器上.让人不解的是,Facebook只动用了一个很小的团队来管理这个庞大的MySQL数据库集群 ...
随机推荐
- 20145316许心远《网络对抗》EXP7网络欺诈技术防范
20145316许心远<网络对抗>EXP7网络欺诈技术防范 实验后回答问题 通常在什么场景下容易受到DNS spoof攻击 公共共享网络里,同一网段可以ping通的网络非常容易被攻击 在日 ...
- Window下安装npm
Node.js停火各大技术论坛都在讨论,前段时间工作太忙没时间学习,趁着周末空闲玩玩,在网上找了些资料发现Node.js本身有windows版和unix版下载和使用都挺方便但是其扩展模块依赖复杂通过手 ...
- Linux中Postfix邮件认证配置（五）
Postfix+Dovecot+Sasl工作原理 1.A用户使用MUA客户端借助smtp协议登陆smtpd服务器,需要先进行用户和密码认证,而SMTPD服务器端支持sasl认证,例如有一个sasl客户 ...
- xml之一
xml基础知识 标记语言<> XML与HTML区别 1.HTML主要用来显示 XML是用来进行数据传输 2.HTML是一种预定义的(<a>表示超链接),xml不是预定义的(& ...
- P3294 [SCOI2016]背单词
P3294 [SCOI2016]背单词 Trie+贪心 倒插进树+取出重建+子树处理+贪心遍历 倒插进树:把后缀转化为前缀,所以把字符串倒着插进Trie中 取出重建:重新建立一棵以单词为节点的树,如果 ...
- 07：urllib与urllib2基本使用
参考博客:https://blog.csdn.net/chendong_/article/details/51973499 1.1 urllib2发送get请求 # -*- coding:UTF-8 ...
- 01: git & github
目录:GIT其他篇 01: git & github 02: git分支管理 目录: 1.1 常见版本管理工具介绍 及 版本工具作用 1.2 git.GitHub和SVN比较 1.3 本地gi ...
- 20145305 《网络对抗》逆向及Bof基础实践
逆向及Bof基础实践说明 实践说明地址 实验过程及结果截图
- 20145307陈俊达《网络对抗》Exp7 网络欺诈技术防范
20145307陈俊达<网络对抗>Exp7 网络欺诈技术防范 基础问题回答 什么是dns欺骗攻击! 利用dns spoof运行DNS欺骗,如果是请求解析某个域名,dnsspoof会让该域名 ...
- 微信小程序——3、逻辑js文件
逻辑层js文件 微信小程序前端进行了层次划分,分为逻辑层和视图层.逻辑层实现对数据的加工和处理.与HTML页面相似,逻辑层使用JavaScript编写.逻辑层将数据处理后发送至视图层,同时接受视图层的 ...