jfinal 使用 redis 缓存数据
项目使用的框架是jfinal + vue + iview , 然后接口是c# 项目,由于c# 的 framework 的版本是 2.0 的,导致引用类名空间一直不兼容,做选择在java web 那边做缓存处理。web 是jfinal 框架搭建的,具体的可以参照 jfinal 技术文档 http://www.jfinal.com/doc RedisPlugin是作为JFinal的...
项目使用的框架是jfinal + vue + iview , 然后接口是c# 项目,由于c# 的 framework 的版本是 2.0 的,导致引用类名空间一直不兼容,做选择在java web 那边做缓存处理。
web 是jfinal 框架搭建的,具体的可以参照 jfinal 技术文档 http://www.jfinal.com/doc
RedisPlugin是作为JFinal的Plugin而存在的,所以使用时需要在JFinalConfig中配置RedisPlugin,以下是RedisPlugin配置示例代码:
public void configPlugin(Plugins me) {
//redisPlugin
RedisPlugin redis = new RedisPlugin("user","127.0.0.1");
me.add(redis);
}
添加了上面的代码来创建user 的缓存,启动项目之后报错了:java.lang.ClassNotFoundException: org.apache.commons.pool2.impl.GenericObjectPoolConfig
[WARN]-[Thread: main]-[org.eclipse.jetty.util.component.AbstractLifeCycle.setFailed()]: FAILED jfinal: java.lang.NoClassDefFoundError: org/apache/commons/pool2/impl/GenericObjectPoolConfig
java.lang.NoClassDefFoundError: org/apache/commons/pool2/impl/GenericObjectPoolConfig
at com.sanusoft.ck.common.MainConfig.configPlugin(MainConfig.java:108)
at com.jfinal.core.Config.configPluginWithOrder(Config.java:70)
at com.jfinal.core.Config.configJFinal(Config.java:56)
at com.jfinal.core.JFinal.init(JFinal.java:63)
at com.jfinal.core.JFinalFilter.init(JFinalFilter.java:49)
at org.eclipse.jetty.servlet.FilterHolder.doStart(FilterHolder.java:119)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:724)
at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:265)
at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:706)
at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:492)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at org.eclipse.jetty.server.handler.HandlerWrapper.doStart(HandlerWrapper.java:95)
at org.eclipse.jetty.server.Server.doStart(Server.java:277)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at com.jfinal.server.JettyServerForIDEA.doStart(JettyServerForIDEA.java:133)
at com.jfinal.server.JettyServerForIDEA.start(JettyServerForIDEA.java:72)
at com.jfinal.core.JFinal.start(JFinal.java:174)
at com.sanusoft.ck.common.MainConfig.main(MainConfig.java:44)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.pool2.impl.GenericObjectPoolConfig
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 20 more
网上搜了一下,说是缺少commons-pool2 的引用,然后去https://mvnrepository.com/search?q=org.apache 搜索下maven 的引用加了
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-pool2</artifactId>
<version>2.5.0</version>
</dependency>
而后,然并卵。。还是有错误java.lang.ClassNotFoundException: redis.clients.jedis.JedisPoolConfig
[WARN]-[Thread: main]-[org.eclipse.jetty.util.component.AbstractLifeCycle.setFailed()]: FAILED jfinal: java.lang.NoClassDefFoundError: redis/clients/jedis/JedisPoolConfig
java.lang.NoClassDefFoundError: redis/clients/jedis/JedisPoolConfig
at com.sanusoft.ck.common.MainConfig.configPlugin(MainConfig.java:108)
at com.jfinal.core.Config.configPluginWithOrder(Config.java:70)
at com.jfinal.core.Config.configJFinal(Config.java:56)
at com.jfinal.core.JFinal.init(JFinal.java:63)
at com.jfinal.core.JFinalFilter.init(JFinalFilter.java:49)
at org.eclipse.jetty.servlet.FilterHolder.doStart(FilterHolder.java:119)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:724)
at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:265)
at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:706)
at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:492)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at org.eclipse.jetty.server.handler.HandlerWrapper.doStart(HandlerWrapper.java:95)
at org.eclipse.jetty.server.Server.doStart(Server.java:277)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at com.jfinal.server.JettyServerForIDEA.doStart(JettyServerForIDEA.java:133)
at com.jfinal.server.JettyServerForIDEA.start(JettyServerForIDEA.java:72)
at com.jfinal.core.JFinal.start(JFinal.java:174)
at com.sanusoft.ck.common.MainConfig.main(MainConfig.java:44)
Caused by: java.lang.ClassNotFoundException: redis.clients.jedis.JedisPoolConfig
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 20 more
后面又加了一个依赖
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>2.9.0</version>
</dependency>
这才把项目启动好,然后我也尝试着把commons-pool2 的引用给去掉,可以正常运行,这么说来就是少了jedis 的类库了。
然而并没有完全的解决掉问题,后面项目接入存取逻辑
Cache userCache = Redis.use("user");
userCache.setex("xu", 3600, "码农");//setex()可以设置过期时间,无需设置使用set()
userCache.get("xu");
运行到这还tm 报错了:java.lang.NoClassDefFoundError: org/nustaq/serialization/FSTObjectOutput
Caused by: java.lang.NoClassDefFoundError: org/nustaq/serialization/FSTObjectOutput
at com.jfinal.plugin.redis.serializer.FstSerializer.valueToBytes(FstSerializer.java:54)
at com.jfinal.plugin.redis.Cache.valueToBytes(Cache.java:1213)
at com.jfinal.plugin.redis.Cache.set(Cache.java:66)
at com.sanusoft.ck.common.sdk.erp.sanu.api.ErpVipApi.sendMsg(ErpVipApi.java:385)
at com.sanusoft.ck.vip.CustomerController.msgHuif(CustomerController.java:411)
... 51 more
接而再引用下fst 依赖
<dependency>
<groupId>de.ruedigermoeller</groupId>
<artifactId>fst</artifactId>
<version>2.50</version>
</dependency>
完美接入redis。
总的来说就是要引用两个依赖包,jedis 和 fst
that's all, thanks!
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