private void ListOperate() {
{
System.out.println("======================list==========================");
// 清空数据
System.out.println("清空库中所有数据：" + jedis.flushDB());
System.out.println("=============增=============");
shardedJedis.lpush("stringlists", "vector");
shardedJedis.lpush("stringlists", "ArrayList");
shardedJedis.lpush("stringlists", "vector");
shardedJedis.lpush("stringlists", "vector");
shardedJedis.lpush("stringlists", "LinkedList");
shardedJedis.lpush("stringlists", "MapList");
shardedJedis.lpush("stringlists", "SerialList");
shardedJedis.lpush("stringlists", "HashList");
shardedJedis.lpush("numberlists", "3");
shardedJedis.lpush("numberlists", "1");
shardedJedis.lpush("numberlists", "5");
shardedJedis.lpush("numberlists", "2");
System.out.println("所有元素-stringlists：" + shardedJedis.lrange("stringlists", 0, -1));
System.out.println("所有元素-numberlists：" + shardedJedis.lrange("numberlists", 0, -1));
System.out.println("=============删=============");
// 删除列表指定的值 ，第二个参数为删除的个数（有重复时），后add进去的值先被删，类似于出栈
System.out.println("成功删除指定元素个数-stringlists：" + shardedJedis.lrem("stringlists", 2, "vector"));
System.out.println("删除指定元素之后-stringlists：" + shardedJedis.lrange("stringlists", 0, -1));
// 删除区间以外的数据
System.out.println("删除下标0-3区间之外的元素：" + shardedJedis.ltrim("stringlists", 0, 3));
System.out.println("删除指定区间之外元素后-stringlists：" + shardedJedis.lrange("stringlists", 0, -1));
// 列表元素出栈
System.out.println("出栈元素：" + shardedJedis.lpop("stringlists"));
System.out.println("元素出栈后-stringlists：" + shardedJedis.lrange("stringlists", 0, -1));
System.out.println("=============改=============");
// 修改列表中指定下标的值
shardedJedis.lset("stringlists", 0, "hello list!");
System.out.println("下标为0的值修改后-stringlists：" + shardedJedis.lrange("stringlists", 0, -1));
System.out.println("=============查=============");
// 数组长度
System.out.println("长度-stringlists：" + shardedJedis.llen("stringlists"));
System.out.println("长度-numberlists：" + shardedJedis.llen("numberlists"));
// 排序
/*
* list中存字符串时必须指定参数为alpha，如果不使用SortingParams，而是直接使用sort("list")，
* 会出现"ERR One or more scores can't be converted into double"
*/
SortingParams sortingParameters = new SortingParams();
sortingParameters.alpha();
sortingParameters.limit(0, 3);
System.out.println(
"返回排序后的结果-stringlists：" + shardedJedis.sort("stringlists", sortingParameters));
System.out.println("返回排序后的结果-numberlists：" + shardedJedis.sort("numberlists"));
// 子串： start为元素下标，end也为元素下标；-1代表倒数一个元素，-2代表倒数第二个元素
System.out.println("子串-第二个开始到结束：" + shardedJedis.lrange("stringlists", 1, -1));
// 获取列表指定下标的值
System.out.println("获取下标为2的元素：" + shardedJedis.lindex("stringlists", 2) + "\n");
}
}
/**
* 通过key从对应的list中删除指定的count个 和 value相同的元素
*
* @param key
* @param count 当count为0时删除全部
* @param value
* @return 返回被删除的个数
*/
public Long lrem(String key, long count, String value) {
ShardedJedis jedis = null;
Long res = null;
try {
jedis = pool.getResource();
res = jedis.lrem(key, count, value);
} catch (Exception e) {
pool.returnBrokenResource(jedis);
e.printStackTrace();
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* 从list中删除value
*
* @param key
* @param count 要删除个数
* @param value
* @return
*/
public boolean removeListValue(String key, long count, String value) {
ShardedJedis shardedJedis = null;
try {
shardedJedis = masterShardedJedisPool.getResource();
shardedJedis.lrem(key, count, value);
return true;
} catch (Exception ex) {
logger.error("getList error.", ex);
;
} finally {
returnResource(shardedJedis);
}
return false;
}
