mongodb第一次启动正常 第二次启动报错的解决方法

Mon Dec 16 10:40:46.958 [initandlisten] MongoDB starting : pid=7700 port=27017 d
bpath=datadb 64-bit host=hdl-PC
Mon Dec 16 10:40:46.959 [initandlisten] db version v2.4.8
Mon Dec 16 10:40:46.960 [initandlisten] git version: a350fc38922fbda2cec8d5dd842
237b904eafc14
Mon Dec 16 10:40:46.960 [initandlisten] build info: windows sys.getwindowsversio
n(major=6, minor=1, build=7601, platform=2, service_pack='Service Pack 1') BOOST
_LIB_VERSION=1_49
Mon Dec 16 10:40:46.961 [initandlisten] allocator: system
Mon Dec 16 10:40:46.961 [initandlisten] options: { repair: true }
Mon Dec 16 10:40:46.963 [initandlisten] exception in initAndListen: 10296
*********************************************************************
 ERROR: dbpath (datadb) does not exist.
 Create this directory or give existing directory in --dbpath.
 See http://dochub.mongodb.org/core/startingandstoppingmongo
*********************************************************************
, terminating
Mon Dec 16 10:40:46.965 dbexit:
Mon Dec 16 10:40:46.965 [initandlisten] shutdown: going to close listening socke
ts...
Mon Dec 16 10:40:46.966 [initandlisten] shutdown: going to flush diaglog...
Mon Dec 16 10:40:46.966 [initandlisten] shutdown: going to close sockets...
Mon Dec 16 10:40:46.966 [initandlisten] shutdown: waiting for fs preallocator...

Mon Dec 16 10:40:46.967 [initandlisten] shutdown: closing all files...
Mon Dec 16 10:40:46.967 [initandlisten] closeAllFiles() finished
Mon Dec 16 10:40:46.968 dbexit: really exiting now

bind_ip = 127.0.0.1  --绑定自环IP
 port = 27017   --客户端默认连接端口，可修改
quiet = true
 dbpath = c:mongodbdatadb --指定数据库文件存储目录
 logpath = c:mongodblogmongod.log
 logappend = true  --启用将操作记录添加到日志
journal = true  --启用日志功能