Jedis操作Redis6 #

• 插曲:本地项目关联github远程库

   git init
   git add README.md
   git commit -m "first commit"
   #-m表示强制重命名
   git branch -M main
   #使用别名
   git remote add origin git@github.com:lwmfjc/jedis_demo.git
   #用了-u之后以后可以直接用git push替代整行 
   git push -u origin main 
  

• jedis pom依赖

  <!-- https://mvnrepository.com/artifact/redis.clients/jedis -->
  <dependency>
      <groupId>redis.clients</groupId>
      <artifactId>jedis</artifactId>
      <version>4.0.1</version>
  </dependency>
  

• jedis使用

  public class Main {
      public static void main(String[] args) {
          //设置密码
          DefaultJedisClientConfig.Builder builder = 
          DefaultJedisClientConfig.builder()
                  .password("hello.lwm");
          DefaultJedisClientConfig config = builder.build();
  
          Jedis jedis = new Jedis("192.168.200.200", 6379, config);
          //ping
          String value = jedis.ping();
          System.out.println(value);
          //返回所有key
          Set<String> keys = jedis.keys("*");
          System.out.println("key count: " +
                  keys.size());
          for (String key : keys) {
              System.out.printf("key--:%s---value:%s\n", 
          key, jedis.get(key));
          }
  
          System.out.println("操作list");
          //操作list
          jedis.lpush("ly-list", "java", "c++", "css");
          List<String> lrange = jedis.lrange("ly-list", 0, -1);
          for (String v : lrange) {
              System.out.println("value:" + v);
          }
  
          //操作set
          System.out.println("操作set");
          jedis.sadd("ly-set", "1", "3", "3",
                  "5", "1");
          Set<String> smembers = jedis.smembers("ly-set");
          for (String v : smembers) {
              System.out.println("value:" + v);
          }
          //操作hash
          System.out.println("操作hash");
          jedis.hset("ly-hash", "name", "lidian");
          jedis.hset("ly-hash", "age", "30");
          jedis.hset("ly-hash", "sex", "man");
          Map<String, String> lyHash = jedis.hgetAll("ly-hash");
          for (String key : lyHash.keySet()) {
              System.out.println(key + ":" + lyHash.get(key));
          }
          //操作zset
          System.out.println("操作zset");
          jedis.zadd("person", 100, "xiaohong");
          jedis.zadd("person", 80, "xiaoli");
          jedis.zadd("person", 90, "xiaochen");
          List<String> person = jedis.zrange("person", 0, -1);
          for (String name : person) {
              System.out.println(name);
          }
          //结束操作
          jedis.flushDB();
          jedis.close();
      }
  }