consider increasing the maximum size of the cache

需要耐心啊，太急于求成，希望直接就得到解决方法了...以至于正确方法都已经出现了，我却没有耐心看下去，所以反而又耽误了不少时间....

项目加载100+张图片，还有一个小的MP4，所以console警告缓存不够

org.apache.catalina.webresources.Cache.getResource Unable to add the resource at [/base/1325/WA6144-150x112.jpg] to the cache because there was insufficient free space available after evicting expired cache entries - consider increasing the maximum size of the cache

The background cache eviction process was unable to free [10] percent of the cache for Context [/liuda] - consider increasing the maximum size of the cache. After eviction approximately [11,145] KB of data remained in the cache

反正就是缓存不够了

http://stackoverflow.com/questions/26893297/tomcat-8-throwing-org-apache-catalina-webresources-cache-getresource-unable-to

上面链接是stackoverflow上出现的和我一样的错误，第二个答案成功的解决了这个警告，就是把缓存弄大点。一开始没耐心看答案，直接把代码加进server.xml了，正确的应该是加到context.xml

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1. <Resources cachingAllowed="true" cacheMaxSize="100000" />  

以上为tomcat报错的解决方案。

但是如果你是用eclipse启动tomcat来运行文件时，每次重启项目时，eclipse的 Servers的context.xml会覆盖tomcat的context.xml文件。所以需要修改eclipse的context.xml。如下图