java多线程和锁，用于学习参考

import org.junit.Test; import redis.clients.jedis.Jedis; import java.util.*; public class TestRedis { private static Jedis jedis = new Jedis("localhost",6379); @Test public void setTest(){ //为指定的键设定值 String key = jedis.set("company","itcast"); System.out.println(key); } @Test public void msetTest(){ //为多个键设定值，其中brand1,brand2,brand3是键 String manykey = jedis.mset("brand1","a","brand2","b","brand3","c"); System.out.println(manykey); } @Test public void keysTest(){ //查看所有符合给定模式（正则表示下）的键 Set<String> keys = jedis.keys("*"); Iterator<String> iterator = keys.iterator(); while (iterator.hasNext()){ System.out.println(iterator.next()); } } @Test public void mgetTest(){ //获取多个键对应的值 List<String> mget = jedis.mget("brand1", "brand2"); for (String value:mget){ System.out.println(value); } } @Test public void existTest(){ //查看是否存在某键 Boolean brand1 = jedis.exists("brand1"); Boolean waad = jedis.exists("waad"); System.out.println(brand1+"-----------"+waad); } @Test public void renameTest(){ //修改某键名称 String rename = jedis.rename("company", "company2"); System.out.println(rename); } @Test public void delTest(){ //删除某个键 Long company2 = jedis.del("company2"); System.out.println(company2); } /*操作字符串*/ @Test public void getsetTest(){ //获取指定键的旧值并且设定新值 String set = jedis.getSet("brand1", "itcast"); System.out.println(set); } @Test public void strlenTest(){ //查看字符串键的值的长度 Long brand2 = jedis.strlen("brand2"); System.out.println(brand2); } @Test public void getrangeTest(){ // 获取指定键字符串的指定索引范围的值 String brand1 = jedis.getrange("brand1", 2, 3); System.out.println(brand1); } @Test public void appendTest(){ //对指定键的字符串末尾追加新内容 Long append = jedis.append("brand1", "dwa"); System.out.println(append); } /*操作列表*/ @Test public void rpushAndLpushTest(){ //将元素推到列表的左边和右边 Long rpush = jedis.rpush("color", "green", "pink"); Long lpush = jedis.lpush("eat", "orange"); System.out.println(rpush+"------------"+lpush); } @Test public void lrangeTest(){ //获取列表指定索引范围内的元素 List<String> color = jedis.lrange("color", 0, 1); for (String colors : color){ System.out.println(colors); } } @Test public void lindexTest(){ //获取列表指定索引上的元素 String color = jedis.lindex("color", 0); System.out.println(color); } @Test public void lpopTest(){ //获取列表最左端的元素 String color = jedis.lpop("color"); System.out.println(color); } @Test public void llenTest(){ //获取列表长度 Long color = jedis.llen("color"); System.out.println(color); } @Test public void lremTest(){ //移除列表中的指定元素 Long lrem = jedis.lrem("color", 1, "green");//移除掉从头开始搜索的第一个green的元素； System.out.println(lrem); } /*操作集合*/ @Test public void saddTest(){ //讲一个或者多个元素添加到集合中 Long sadd = jedis.sadd("database", "one", "two", "three"); System.out.println(sadd); } @Test public void scardTest(){ //获取集合中元素数量 Long database = jedis.scard("database"); System.out.println(database); } @Test public void smemberTest(){ //查看集合中的所有元素 Set<String> database = jedis.smembers("database"); Iterator<String> iterator = database.iterator(); while (iterator.hasNext()){ System.out.println(iterator.next()); } } @Test public void issmemberTest(){ //判断元素是否存在集合中 Boolean sismember = jedis.sismember("database", "redis"); System.out.println(sismember); } @Test public void sremTest(){ // 移除集合一个或者多个已存在的元素 Long srem = jedis.srem("database", "one"); System.out.println(srem); } /*操作散列*/ @Test public void hmsetTest(){ //为散列的多个键设置值 HashMap<String, String> map = new HashMap<>(); map.put("person","jack"); map.put("fruit","apple"); String article = jedis.hmset("article", map); System.out.println(article); } @Test public void hgetAllTest(){ // 获取散列中的所有键值对 Map<String, String> map = jedis.hgetAll("article"); Set<Map.Entry<String, String>> entries = map.entrySet(); Iterator<Map.Entry<String, String>> iterator = entries.iterator(); while (iterator.hasNext()){ Map.Entry<String, String> next = iterator.next(); System.out.println(next); } } @Test public void hkeysTest(){ //获取散列中所有键 Set<String> article = jedis.hkeys("article"); Iterator<String> iterator = article.iterator(); while (iterator.hasNext()){ String next = iterator.next(); System.out.println(next); } } @Test public void hvalsTest(){ //获取散列中所有的值 List<String> article = jedis.hvals("article"); for (String articles : article){ System.out.println(articles); } } @Test public void hdelTest(){ //删除散列中对应的键和值; Long hdel = jedis.hdel("article", "fruit"); System.out.println(hdel); } /*操作有序集合*/ @Test public void zaddTest(){ //有序集合添加一个或者多个键值对 Map<Double, String> map = new HashMap<>(); map.put(1.0,"old"); map.put(2.0,"young"); map.put(3.0,"middle"); Long ages = jedis.zadd("age",map); System.out.println(ages); } @Test public void zcountTest(){ //统计有序集合内指定分值范围内的元素个数 Long age = jedis.zcount("age", 1, 2); System.out.println(age); } @Test public void zrem(){ //移除有序集合中指定元素 Long zrem = jedis.zrem("age", "old"); System.out.println(zrem); } @Test public void zrange(){ //查看指定索引范围的集合 Set<String> age = jedis.zrange("age", 0, 2); for (String ages : age){ System.out.println(ages); } } }