Springmvc集成redis集羣

1.maven依賴：

<dependency>

      <groupId>redis.clients</groupId>

    <artifactId>jedis</artifactId>

     <version>2.8.1</version>

</dependency>

2.增長spring 配置

1. <bean name="genericObjectPoolConfig" class="org.apache.commons.pool2.impl.GenericObjectPoolConfig" >  
2.         <property name="maxWaitMillis" value="-1" />  
3.         <property name="maxTotal" value="1000" />  
4.         <property name="minIdle" value="8" />  
5.         <property name="maxIdle" value="100" />  
6. </bean>  
7.   
8. <bean id="jedisCluster" class="xxx.JedisClusterFactory">  
9.     <property name="addressConfig">  
10.         <value>classpath:connect-redis.properties</value>  
11.     </property>  
12.     <property name="addressKeyPrefix" value="address" />   <!--  屬性文件裏  key的前綴 -->  
13.       
14.     <property name="timeout" value="300000" />  
15.     <property name="maxRedirections" value="6" />  
16.     <property name="genericObjectPoolConfig" ref="genericObjectPoolConfig" />  
17. </bean>  

 

3.增長connect-redis.properties  配置文件

這裏配置了6個節點

1. address1=172.16.23.27:6379  
2. address2=172.16.23.27:6380  
3. address3=172.16.23.27:6381  
4. address4=172.16.23.27:6382  
5. address5=172.16.23.27:6383  
6. address6=172.16.23.27:6384  

 

4.增長java類：

Java代碼

1. import java.util.HashSet;  
2. import java.util.Properties;  
3. import java.util.Set;  
4. import java.util.regex.Pattern;  
5.   
6. import org.apache.commons.pool2.impl.GenericObjectPoolConfig;  
7. import org.springframework.beans.factory.FactoryBean;  
8. import org.springframework.beans.factory.InitializingBean;  
9. import org.springframework.core.io.Resource;  
10.   
11. import redis.clients.jedis.HostAndPort;  
12. import redis.clients.jedis.JedisCluster;  
13.   
14. public class JedisClusterFactory implements FactoryBean<JedisCluster>, InitializingBean {  
15.   
16.     private Resource addressConfig;  
17.     private String addressKeyPrefix ;  
18.   
19.     private JedisCluster jedisCluster;  
20.     private Integer timeout;  
21.     private Integer maxRedirections;  
22.     private GenericObjectPoolConfig genericObjectPoolConfig;  
23.       
24.     private Pattern p = Pattern.compile("^.+[:]\\d{1,5}\\s*$");  
25.   
26.     @Override  
27.     public JedisCluster getObject() throws Exception {  
28.         return jedisCluster;  
29.     }  
30.   
31.     @Override  
32.     public Class<? extends JedisCluster> getObjectType() {  
33.         return (this.jedisCluster != null ? this.jedisCluster.getClass() : JedisCluster.class);  
34.     }  
35.   
36.     @Override  
37.     public boolean isSingleton() {  
38.         return true;  
39.     }  
40.   
41.   
42.   
43.     private Set<HostAndPort> parseHostAndPort() throws Exception {  
44.         try {  
45.             Properties prop = new Properties();  
46.             prop.load(this.addressConfig.getInputStream());  
47.   
48.             Set<HostAndPort> haps = new HashSet<HostAndPort>();  
49.             for (Object key : prop.keySet()) {  
50.   
51.                 if (!((String) key).startsWith(addressKeyPrefix)) {  
52.                     continue;  
53.                 }  
54.   
55.                 String val = (String) prop.get(key);  
56.   
57.                 boolean isIpPort = p.matcher(val).matches();  
58.   
59.                 if (!isIpPort) {  
60.                     throw new IllegalArgumentException("ip 或 port 不合法");  
61.                 }  
62.                 String[] ipAndPort = val.split(":");  
63.   
64.                 HostAndPort hap = new HostAndPort(ipAndPort[0], Integer.parseInt(ipAndPort[1]));  
65.                 haps.add(hap);  
66.             }  
67.   
68.             return haps;  
69.         } catch (IllegalArgumentException ex) {  
70.             throw ex;  
71.         } catch (Exception ex) {  
72.             throw new Exception("解析 jedis 配置文件失敗", ex);  
73.         }  
74.     }  
75.       
76.     @Override  
77.     public void afterPropertiesSet() throws Exception {  
78.         Set<HostAndPort> haps = this.parseHostAndPort();  
79.           
80.         jedisCluster = new JedisCluster(haps, timeout, maxRedirections,genericObjectPoolConfig);  
81.           
82.     }  
83.     public void setAddressConfig(Resource addressConfig) {  
84.         this.addressConfig = addressConfig;  
85.     }  
86.   
87.     public void setTimeout(int timeout) {  
88.         this.timeout = timeout;  
89.     }  
90.   
91.     public void setMaxRedirections(int maxRedirections) {  
92.         this.maxRedirections = maxRedirections;  
93.     }  
94.   
95.     public void setAddressKeyPrefix(String addressKeyPrefix) {  
96.         this.addressKeyPrefix = addressKeyPrefix;  
97.     }  
98.   
99.     public void setGenericObjectPoolConfig(GenericObjectPoolConfig genericObjectPoolConfig) {  
100.         this.genericObjectPoolConfig = genericObjectPoolConfig;  
101.     }  
102.   
103. }  

 

5.到此配置完成，使用時，直接注入便可， 以下所示：

@Autowired

JedisCluster jedisCluster;

注意：「no reachable node in cluster] with root cause」報錯

（1）若是redis集羣不是部署在本機，是部署在其它機器或者虛擬機上，必定注意redis.conf配置文件中的bind ip不要使用127.0.0.1，而是改爲機器的ip地址，否則將沒法訪問redis集羣，會由於找不到redis集羣報這樣的錯誤；

同時防火牆開放端口

$ iptables -I INPUT -p tcp --dport 7000 -j ACCEPT
$ iptables -I INPUT -p tcp --dport 7001 -j ACCEPT
$ iptables -I INPUT -p tcp --dport 7002 -j ACCEPT
$ iptables -I INPUT -p tcp --dport 7003 -j ACCEPT
$ iptables -I INPUT -p tcp --dport 7004 -j ACCEPT
$ iptables -I INPUT -p tcp --dport 7005 -j ACCEPT

（2）查看是否關閉了防火牆，若是沒有關閉防火牆，利用以下命令關閉防火牆：

1) 重啓後生效 
開啓： chkconfig iptables on 
關閉： chkconfig iptables off 

2) 即時生效，重啓後失效 
開啓： service iptables start 
關閉： service iptables stop