node.js中连接mongodb(Please ensure that you set the default write...)解决办法
Please ensure that you set the default write concern for the database by setting == one of the options =
= =
= w: (value of > -1 or the string 'majority'), where < 1 means =
= no write acknowlegement =
= journal: true/false, wait for flush to journal before acknowlegement =
= fsync: true/false, wait for flush to file system before acknowlegement =
= =
=For backward compatibility safe is still supported and =
= allows values of =
= the default value is false which means the driver receives does not =
= return the information of the success/error of the insert/update/remove =
= =
= ex: new Db(new Server('localhost', 27017), {safe:false}) =
= =
= http://www.mongodb.org/display/DOCS/getLastError+Command =
= =
=The default of no acknowlegement will change in the very near future =
= =
=This message will disappear when the default safe is set on the driver Db =
========================================================================================
new Db(new Server('localhost', 27017), {w: 1})
这样子就可以了
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