redis 导入导出redis-load，redis-dump详解

安装redis-dump
[root@bogon ~] yum install ruby rubygems ruby-devel   //安装rubygems 以及相关包  
  
[root@bogon ~] gem sources -a http://gems.ruby-china.org/   //源，ruby china加入，外面的源不能访问  
http://gems.ruby-china.org/ added to sources  
  
[root@bogon ~] gem install redis-dump -V
 redis-dump导出数据
[root@bogon ~] telnet 127.0.0.1 6379
Trying 127.0.0.1...  
Connected to 127.0.0.1.  
Escape character is '^]'.  
set test 11 //设置一个值  
+OK  
get test //取值  
$2  
11 
[root@bogon ~] redis-dump -u :passwd@127.0.0.1:6379 >test.json 

[root@bogon ~] telnet 127.0.0.1 6379 //telnet到redis 

Trying 127.0.0.1... 

Connected to 127.0.0.1.  

Escape character is '^]'.  

flushall //请空所有数据  

+OK  

keys * //查看已清空  

*0 

 redis-load还原数据

[root@bogon ~]  < test.json redis-load //导入数据 
[root@bogon ~]  telnet 127.0.0.1 6379 
Trying 127.0.0.1... 
Connected to 127.0.0.1.  
Escape character is '^]'. 
keys * 
*1
$4
test