如下脚本实现将 filepath字段中的 http://116.213.206.162替换成 http://221.122.94.147，例如将“http://116.213.206.162/uncall_api/downloadFile.php?f_path=”替换成php
“http://221.122.94.147/uncall_api/downloadFile.php?f_path=”api
db.getCollection('callRecord').find({'filepath':{'$ne':null}, 'filepath':/^http:\/\/116.213.206.162/}). forEach( function(item) { var tmp = String(item.filepath) //var tmp1 = tmp.match(/^http:\/\/116.213.206.162/)
if (tmp == null){ print(item.filepath) } else{ tmp = tmp.replace(/^http:\/\/116.213.206.162/g,"http://221.122.94.147"); } item.filepath = tmp ; db.getCollection('callRecord').save(item); } );