基于内存和 Redis 的两级 Java 缓存框架

## tomcat-session-manager 该模块是为了让 java 的 web 应用支持用 J2Cache 管理 session。 #### 使用方法： 1. 引入 maven 依赖 ```xml <dependency> <groupId>net.oschina.j2cache</groupId> <artifactId>j2cache-session-manager</artifactId> <version>xxx</version> </dependency> ``` 2. 配置 web.xml ```xml <filter> <filter-name>j2cache-session-filter</filter-name> <filter-class>net.oschina.j2cache.session.J2CacheSessionFilter</filter-class> <init-param><!-- 内存中存放会话数 --> <param-name>session.maxSizeInMemory</param-name> <param-value>2000</param-value> </init-param> <init-param><!-- 会话有效期，单位：秒钟 --> <param-name>session.maxAge</param-name> <param-value>1800</param-value> </init-param> <!-- cookie configuration --> <init-param> <param-name>cookie.name</param-name> <param-value>J2CACHE_SESSION_ID</param-value> </init-param> <init-param> <param-name>cookie.path</param-name> <param-value>/</param-value> </init-param> <init-param> <param-name>cookie.domain</param-name> <param-value></param-value> </init-param> <!-- redis configuration --> <!-- # redis.mode : Redis Cluster Mode # # single -> single redis server # sentinel -> master-slaves servers # cluster -> cluster servers (数据库配置无效，使用 database = 0） # sharded -> sharded servers (密码、数据库必须在 hosts 中指定，且连接池配置无效 ; redis://user:password@127.0.0.1:6379/0） # --> <init-param> <param-name>redis.mode</param-name> <param-value>single</param-value> </init-param> <init-param> <param-name>redis.hosts</param-name> <param-value>127.0.0.1:6379</param-value> </init-param> <init-param> <param-name>redis.channel</param-name> <param-value>j2cache</param-value> </init-param> <init-param> <param-name>redis.cluster_name</param-name> <param-value>j2cache</param-value> </init-param> <init-param> <param-name>redis.timeout</param-name> <param-value>2000</param-value> </init-param> <init-param> <param-name>redis.password</param-name> <param-value></param-value> </init-param> <init-param> <param-name>redis.database</param-name> <param-value>0</param-value> </init-param> <init-param> <param-name>redis.maxTotal</param-name> <param-value>100</param-value> </init-param> <init-param> <param-name>redis.maxIdle</param-name> <param-value>10</param-value> </init-param> <init-param> <param-name>redis.minIdle</param-name> <param-value>1</param-value> </init-param> </filter> <filter-mapping> <filter-name>j2cache-session-filter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> ``` 更详细配置请参考 j2cache.properties 说明。 3. 启动应用并检查日志看是否启动正常