重新引入Redis；用户登录与管理员登录完成；引入NanoID代替UUID；调整Spring Boot idea中的启动参数；swagger页面描述信息完善；更新swagger，更新Api文档

bookshelfplus/src/main/java/plus/bookshelf/Common/SessionManager/RedisSessionManager.java

@@ -0,0 +1,53 @@
+package plus.bookshelf.Common.SessionManager;
+
+import org.springframework.data.redis.core.RedisTemplate;
+
+import javax.servlet.http.HttpServletRequest;
+import java.util.concurrent.TimeUnit;
+
+public class RedisSessionManager implements SessionManager {
+
+    /**
+     * 私有化构造函数
+     */
+    private RedisSessionManager(RedisTemplate redisTemplate) {
+        this.redisTemplate = redisTemplate;
+    }
+
+    static SessionManager sessionManager = null;
+
+    /**
+     * 通过此方法获取当前类的实例
+     *
+     * @return
+     */
+    public static SessionManager getInstance(RedisTemplate redisTemplate) {
+        if (sessionManager == null)
+            sessionManager = new RedisSessionManager(redisTemplate);
+        return sessionManager;
+    }
+
+    static RedisTemplate redisTemplate = null;
+
+    @Override
+    public Object getValue(String key) {
+        try {
+            return redisTemplate.opsForValue().get(key);
+        } catch (Exception e) {
+            return null;
+        }
+    }
+
+    @Override
+    public void setValue(String key, Object value) {
+        redisTemplate.expire(key, 1, TimeUnit.HOURS);
+
+        // 建立token和用户登录态之间的联系
+        redisTemplate.opsForValue().set(key, value);
+    }
+
+    @Override
+    public void remove(String key) {
+        redisTemplate.delete(key);
+    }
+}