mongodb中的游标使用示例如下:
假设执行如下操作:
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db.XXX.remove(); db.XXX. insert ({ "name" : "BuleRiver1" , "age" :27}); db.XXX. insert ({ "name" : "BuleRiver2" , "age" :23}); db.XXX. insert ({ "name" : "BuleRiver3" , "age" :21}); |
使用find()返回一个游标:
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var cursor = db.XXX.find(); while ( cursor .hasNext()) { obj = cursor . next (); print(obj. name ); } |
使用游标的forEach()循环遍历:
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cursor .forEach( function (x) { print(x. name ); }); |