SpringBoot+Redis集群

来源：互联网发布：windows 7 补丁合集编辑：程序博客网时间：2024/05/17 02:58

1、加入依赖：

<dependency>      <groupId>org.springframework.boot</groupId>      <artifactId>spring-boot-starter-web</artifactId>    </dependency>    <dependency>      <groupId>redis.clients</groupId>      <artifactId>jedis</artifactId>      <version>2.9.0</version>    </dependency>    <dependency>      <groupId>org.springframework.boot</groupId>      <artifactId>spring-boot-starter-cache</artifactId>    </dependency>    <dependency>      <groupId>org.springframework.data</groupId>      <artifactId>spring-data-redis</artifactId>      <version>1.8.1.RELEASE</version>    </dependency>

2、application.yml：

redis:  clusterNodes: 10.10.39.11:7111,10.10.39.11:7112,10.10.39.11:7113,10.10.39.11:7114,10.10.39.11:7115,10.10.39.11:7116  maxWaitMillis: 5000  maxTotal: 1000  minIdle: 10  maxIdle: 20

3、读取配置：

@Component@ConfigurationProperties(prefix = "redis")public class RedisProperties {    private String clusterNodes;    private int maxWaitMillis;    private int maxTotal;    private int minIdle;    private int maxIdle;    public String getClusterNodes() {        return clusterNodes;    }    public void setClusterNodes(String clusterNodes) {        this.clusterNodes = clusterNodes;    }    public int getMaxWaitMillis() {        return maxWaitMillis;    }    public void setMaxWaitMillis(int maxWaitMillis) {        this.maxWaitMillis = maxWaitMillis;    }    public int getMaxTotal() {        return maxTotal;    }    public void setMaxTotal(int maxTotal) {        this.maxTotal = maxTotal;    }    public int getMinIdle() {        return minIdle;    }    public void setMinIdle(int minIdle) {        this.minIdle = minIdle;    }    public int getMaxIdle() {        return maxIdle;    }    public void setMaxIdle(int maxIdle) {        this.maxIdle = maxIdle;    }}

4、构造Bean：

@Configurationpublic class JedisClusterConfig {    @Autowired    private RedisProperties redisProperties;    @Bean    public JedisPoolConfig getJedisPoolConfig(){        JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();        jedisPoolConfig.setMaxTotal(redisProperties.getMaxTotal());        jedisPoolConfig.setMaxIdle(redisProperties.getMaxIdle());        jedisPoolConfig.setMinIdle(redisProperties.getMinIdle());        jedisPoolConfig.setMaxWaitMillis(redisProperties.getMaxWaitMillis());        return jedisPoolConfig;    }    @Bean    public JedisCluster getJedisCluster(){        String[] serverArray = redisProperties.getClusterNodes().split(",");        Set<HostAndPort> nodes = new HashSet<>();        for(String server:serverArray){            String[] ipPortPair = server.split(":");            nodes.add(new HostAndPort(ipPortPair[0].trim(), Integer.valueOf(ipPortPair[1].trim())));        }        return new JedisCluster(nodes, getJedisPoolConfig());    }    @Bean    public JedisConnectionFactory getJedisConnectionFactory(){        RedisClusterConfiguration redisClusterConfiguration = new RedisClusterConfiguration();        HashSet<RedisNode> nodes = new HashSet<>();        String[] serverArray = redisProperties.getClusterNodes().split(",");        for(String server:serverArray){            String[] ipPortPair = server.split(":");            RedisNode redisNode = new RedisNode(ipPortPair[0].trim(), Integer.valueOf(ipPortPair[1].trim()));            nodes.add(redisNode);        }        redisClusterConfiguration.setClusterNodes(nodes);        JedisConnectionFactory jedisConnectionFactory = new JedisConnectionFactory(redisClusterConfiguration, getJedisPoolConfig());        return jedisConnectionFactory;    }}

5、直接操作Redis集群：

@Componentpublic class TestRedis {    @Autowired    private JedisCluster jedisCluster;    @PostConstruct    public void run() {        for (int i = 0; i < 100; i++) {            //jedisCluster.set("redis"+i, "key"+i);            String value= jedisCluster.get("redis"+i);            System.err.println(value);        }    }}

6、作为缓存使用：

@Servicepublic class TestService {    //用来模拟对数据库的操作    private Map<Integer, String> dataMap = new HashMap<>();    @PostConstruct    public void init(){        for(int i=1; i<4; i++){            dataMap.put(i, "value"+i);        }    }    /**     * 查询     * 如果数据没有缓存,那么从dataMap里面获取     * 如果缓存了,那么从RedisCache里面获取     * 并且将缓存的数据存入到 RedisCache里面     * 其中key 为 dataMap_ + #id     */    @Cacheable(value = "RedisCache", key = "'dataMap_' + #id")    public String query(int id){        System.out.println("["+getDateNow()+"]:"+id);        return dataMap.get(id);    }    /**     * 插入或更新数据到dataMap中     * 并且缓存到 RedisCache中     * 如果存在了那么更新缓存中的值     * 其中key 为 dataMap_ + #id     */    @CachePut(value = "RedisCache", key = "'dataMap_' + #id")    public String add(int id, String value){        System.out.println("["+getDateNow()+"]:"+id);        dataMap.put(id, value);        return value;    }    /**     * 删除dataMap里面的数据     * 并且删除缓存RedisCache中的数据     * 其中key 为 dataMap_ + #id     */    @CacheEvict(value = "RedisCache", key = "'dataMap_' + #id")    public void delete(int id){        System.out.println("["+getDateNow()+"]:"+id);        dataMap.remove(id);    }    private static String getDateNow(){        DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");        return dateFormat.format(new Date());    }}

@RestController@EnableCachingpublic class TestCache {    @Autowired    private TestService testService;    @RequestMapping("get")    public String query(int id){        return "["+getDateNow()+"]:"+testService.query(id);    }    @RequestMapping("put")    public String add(int id, String value){        return "["+getDateNow()+"]:"+testService.add(id ,value);    }    @RequestMapping("del")    public String delete(int id){        testService.delete(id);        return "["+getDateNow()+"]:"+id+" delete success";    }    private static String getDateNow(){        DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");        return dateFormat.format(new Date());    }}

项目源码：点击打开链接

0 0