log4j下載下傳位址及日志檔案輸入位置配置

ERROR StatusLogger Log4j2 could not find a logging implementation. Please add log4j-core to the classpath. Using SimpleLogger to log to the console...

去以下位址下載下傳個核心包加入到classpath内。

http://www.apache.org/dyn/closer.lua/logging/log4j

在配置日期檔案輸出位置時可以配置在WEB項目内，

Log4j configuration properties. The expressions ${log4j:configLocation} and ${log4j:configParentLocation} respectively provide the absolute path to the log4j configuration file and its parent folder.

The example below uses this lookup to place log files in a directory relative to the log4j configuration file.

from:http://logging.apache.org/log4j/2.x/manual/lookups.html