Get Jedis examples through JedisPool and complete simple Key-value read and write operations on redis.
The complete code structure is as follows:
Run redis-server.exe locally, Then create a new jedis.properties in resources:
redis.host=localhost redis.port=6379
We put the jedis related configuration in a separate In Spring Config, create a new applicationContext-jedis.xml in the resources/spring directory.
<!-- 加载配置属性文件 --> <property-placeholder></property-placeholder> <bean> <property></property> <!-- 最大能够保持idel状态的对象数 --> <property></property> <!-- 最大分配的对象数 --> <property></property> <!-- 当调用borrow Object方法时，是否进行有效性检查 --> </bean> <bean> <constructor-arg></constructor-arg> <constructor-arg></constructor-arg> <constructor-arg></constructor-arg> </bean>
Add a unit test and obtain the JedisPool instance object through the @Resource annotation.
@Resourceprivate JedisPool jedisPool;
Then call the getResource() method of the jedisPool object to obtain the Jedis instance.
Jedis jedis = jedisPool.getResource();
First test the most basic get and set operations
@Testpublic void TestRedis() {
Jedis jedis = jedisPool.getResource();
String key = "a";
jedis.set(key, "111");
String data = jedis.get(key);
System.out.println(data);
}Running result: 111
Test a list operation again:
@Testpublic void testList(){
Jedis jedis=jedisPool.getResource();
String key="articles";
jedis.lpush(key,"文章1");
jedis.lpush(key,"文章2");
jedis.lpush(key,"文章3");
List<string> articles=jedis.lrange(key,0,3);for(String article:articles){
System.out.println(article);
}
}</string>
Run result:
Article 3
Article 2
Article 1
Another collection operation:
@Testpublic void testSet(){
Jedis jedis=jedisPool.getResource();
String key="tags";
jedis.sadd(key,"宝马");
jedis.sadd(key,"豪车");
jedis.sadd(key,"SUV");
jedis.sadd(key,"SUV");
Set<string> tags=jedis.smembers(key);for(String tag:tags){
System.out.println(tag);
}
}</string>Run result:
BMW
luxury car
SUV
Let’s get here first, SO EASY!!
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