史上最详细介绍Redis的JavaAPI操作！！！

redis的javaAPI操作

redis不仅可以通过命令行进行操作，同时redis也可以通过javaAPI进行操作，我们可以通过使用javaAPI来对redis数据库当中的各种数据类型进行操作

第一步：创建maven工程并导入jar包

<dependencies>
        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
            <version>2.9.0</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.testng</groupId>
            <artifactId>testng</artifactId>
            <version>6.14.3</version>
            <scope>test</scope>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.0</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                    <!--    <verbal>true</verbal>-->
                </configuration>
            </plugin>
        </plugins>
    </build>

第二步：连接以及关闭redis客户端

private JedisPool jedisPool;
private JedisPoolConfig config;

@BeforeTest
public void redisConnectionPool(){
    config = new JedisPoolConfig();
    config.setMaxIdle(10);
    config.setMaxWaitMillis(3000);
    config.setMaxTotal(50);
    config.setMinIdle(5);
    jedisPool = new JedisPool(config, "node01", 6379);
}
@AfterTest
public void closePool(){
    jedisPool.close();
}

第三步：redis的javaAPI操作

操作string类型数据:

/**
 * 添加string类型数据
 */
@Test
public void addStr(){
    Jedis resource = jedisPool.getResource();
    //添加
    resource.set("jediskey", "jedisvalue");
    //查询
    String jediskey = resource.get("jediskey");
    System.out.println(jediskey);
    //修改
    resource.set("jediskey","jedisvalueUpdate");
    //删除
    resource.del("jediskey");
    //实现整型数据的增长操作
    resource.incr("jincr");
    resource.incrBy("jincr",3);
    String jincr = resource.get("jincr");
    System.out.println(jincr);
    resource.close();
}

操作hash列表类型数据:

/**
 * 操作hash类型数据
 */
@Test
public void hashOperate(){
    Jedis resource = jedisPool.getResource();
    //添加数据
    resource.hset("jhsetkey","jmapkey","jmapvalue");
    resource.hset("jhsetkey","jmapkey2","jmapvalue2");
    //获取所有数据
    Map<String, String> jhsetkey = resource.hgetAll("jhsetkey");
    for (String s : jhsetkey.keySet()) {
        System.out.println(s);
    }
    //修改数据
    resource.hset("jhsetkey","jmapkey2","jmapvalueupdate2");
    Map<String, String> jhsetkey2 = resource.hgetAll("jhsetkey");
    for (String s : jhsetkey2.keySet()) {
        System.out.println("修改数据打印"+s);
    }
    //删除数据
    resource.del("jhsetkey");

    Set<String> jhsetkey1 = resource.keys("jhsetkey");
    for (String result : jhsetkey1) {
        System.out.println(result);
    }
}

操作list类型数据:

/**
 * 操作list类型的数据
 */
@Test
public void listOperate(){
    Jedis resource = jedisPool.getResource();
    //从左边插入元素
    resource.lpush("listkey","listvalue1","listvalue1","listvalue2");

    //从右边移除元素
    resource.rpop("listkey");
    //获取所有值
    List<String> listkey = resource.lrange("listkey", 0, -1);
    for (String s : listkey) {
        System.out.println(s);
    }
    resource.close();
}

操作set类型的数据:

/**
 * set类型数据操作
 */
@Test
public void setOperate(){
    Jedis resource = jedisPool.getResource();
    //添加数据
    resource.sadd("setkey", "setvalue1", "setvalue1", "setvalue2", "setvalue3");
    //查询数据
    Set<String> setkey = resource.smembers("setkey");
    for (String s : setkey) {
        System.out.println(s);
    }
    //移除掉一个数据
    resource.srem("setkey","setvalue3");
    resource.close();
}