无法使用gmongo在mongo中插入文档

Question

我有下面的代码可以在groovy中插入一个文档，但是我在grails应用程序中一直有这个错误。

   def zipcode = getDocumentCollection()
   zipcode.insert(["city": "ACMAR", "loc": [-86.51557F, 33.584132F], "pop": 6055, "state": "AL", "_id": "35004"])

方法的签名: com.mongodb.DBApiLayer$MyCollection.insert()不适用于参数类型：(java.util.LinkedHashMap)值：[[city:ACMAR，loc:-86.51557，33.584133，.]]可能的解决方案:插入( [Lcom.mongodb.DBObject;)，插入(java.util.List)，插入(Lcom.mongodb.DBObject；，com.mongodb.WriteConcern)，插入(com.mongodb.DBObject，com.mongodb.WriteConcern)，插入(com.mongodb.WriteConcern，[Lcom.mongodb.DBObject；)，插入(java.util.List，com.mongodb.WriteConcern) )

这段代码取自gmongo的例子。知道我为什么会出错吗？

更新

在尝试@dmahapatro的方法之后，我在Grails应用程序中得到了以下错误：

2013-06-06 09:54:21,493 [localhost-startStop-1] ERROR context.GrailsContextLoader  - Error initializing the application: Error creating bean with name 'org.springframework.data.mongodb.monitor.OperationCounters#0': Unsatisfied dependency expressed through constructor argument with index 0 of type [com.mongodb.Mongo]: Could not convert constructor argument value of type [com.gmongo.GMongo] to required type [com.mongodb.Mongo]: Failed to convert value of type 'com.gmongo.GMongo' to required type 'com.mongodb.Mongo'; nested exception is java.lang.IllegalStateException: Cannot convert value of type [com.gmongo.GMongo] to required type [com.mongodb.Mongo]: no matching editors or conversion strategy found
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'org.springframework.data.mongodb.monitor.OperationCounters#0': Unsatisfied dependency expressed
 through constructor argument with index 0 of type [com.mongodb.Mongo]: Could not convert constructor argument value of type [com.gmongo.GMongo] to required type [com.mongodb.Mongo]: Failed to
 convert value of type 'com.gmongo.GMongo' to required type 'com.mongodb.Mongo'; nested exception is java.lang.IllegalStateException: Cannot convert value of type [com.gmongo.GMongo] to required type [com.mongodb.Mongo]: no matching editors or conversion strategy found
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:722)

Answer 1

当您使用insert时，您需要提供名为args的键值对(我认为您也可以使用一个映射，但它不会太冗长)。

zipcode.insert(city: "ACMAR", loc: [-86.51557F, 33.584132F], pop: 6055, state: "AL", _id: "35004")

如果要使用HashMap，则使用左移位操作符将文档插入集合中。

zipcode << ["city": "ACMAR", "loc": [-86.51557F, 33.584132F], "pop": 6055, "state": "AL", "_id": "35004"]

如果我使用聚合，我会使用第二种方法。

样本

当测试时，这对我来说是完美的。

@Grab(group='com.gmongo', module='gmongo', version='1.0')
import com.gmongo.GMongo

def mongo = new GMongo("127.0.0.1", 27017)
def db = mongo.getDB("gmongo")
//Instead of doing below I can also use db.zipcodes.insert(blah: blah)
def zipCode = db.getCollection("zipcodes")
zipCode.insert(city: "ACMAR", loc: [-86.51557F, 33.584132F], pop: 6055, state: "AL", _id: "35004")
zipCode << [city: "DUMMY", loc: [-86.51587F, 33.584172F], pop: 6056, state: "AL", _id: "35005"]

assert db.zipcodes.findOne(city: "DUMMY").city == 'DUMMY'
assert db.zipcodes.findOne(city: "ACMAR").city == 'ACMAR'