(1)、引入依赖
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId> </dependency>
<dependency> <groupId>io.netty</groupId> <artifactId>netty-all</artifactId> <version>4.1.48.Final</version> </dependency>
第二个依赖缺少可能提示:
ClassNotFoundException: io.netty.util.internal.logging.InternalLoggerFactory
(2)、配置redis信息
application.properties中加载redis配置文件
# redis config spring.profiles.include=redis
创建redis配置文件application-redis.properties
### redis config spring.redis.host=192.168.0.35 spring.redis.port=6379 spring.redis.password=123456
(3)、注入redis
@Autowired private StringRedisTemplate redisTemplate;
(4)、操作redis
// 获取authorization String authorization = x2Service.getAuthorization(); // 保存authorization到redis redisTemplate.opsForValue().set(tokenRedisKey, authorization);
// 获取authorization String authorization = (String) redisTemplate.opsForValue().get(tokenRedisKey);
百度教程虽然多,但是2.X都有问题,缺少依赖会报错ClassNotFoundException: io.netty.util.internal.logging.InternalLoggerFactory,折腾一个上午。
java限制1个方法同一时间只能被一个线程访问public synchronized void setOrderPay(){ }加上synchronized 修饰符即可...
在java中字符串属于对象,刚开始我就疑惑为什么int char等类型都是小写,结果String是大写,java太反人类,后来才知道String是对象。(1).java创建字符串String text = "net"; String tex...
java stringBuffer(1).stringBuffer和stringBuilder区别stringBuffer是线程安全的,stringBuilder速度更快(2).简单的stringBuffer例子StringBuffer sBuffer = new&nb...
(1).java获取当前日期时间Date date = new Date(); System.out.println(date.toString());输出Fri Jul 02 10:29:55 CST 2021(2).java获取时间戳秒/毫秒D...
(1).java睡眠函数Thread.sleep(时间); //单位为毫秒(2).java睡眠函数例子Date dNow = new Date(); SimpleDateFormat ft = new&nbs...
System.out.println("当前时间戳(秒): " + System.currentTimeMillis()/1000); System.out.println("当前时间戳(毫秒): " +&nb...