Question

我有以下代码在groovy中插入文档，但我在grails应用程序中不断收到此错误

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

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

此代码取自gmongo的示例。我为什么会收到错误的任何想法？

更新
尝试@ dmahapatro的方法后，我在Grails应用程序中收到以下错误：

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

当你使用insert时，你需要提供名为args的键值对（我想你也可以使用一个地图，但它会更简洁）。

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

如果您想使用HashMap，请使用左移运算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，我会采用第二种方法。

<强>示例

这对我来说非常适合测试。

@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'

无法使用gmongo在mongo中插入文档

1 个答案: