Informix 12.10.FC5版本，如何连接nosql

1）JAVA程序中不能使用MongoDB client API操作informix中的nosql数据，要操作的话需要借助MongoDB相应驱动进行数据访问，具体方法参考下面的链接http://api.mongodb.com/java/3.2/

2）使用MongoDB CLIENT API操作nosql数据可按如下步骤：

-- 启动informix jsonlistener监听线程

-- 启动MongoDB client，进入提示符状态

-- 直接通过MongoDB client API进行操作即可，此时您将直接在informix中看到创建的表，对于MongoDB client API的用法参考下面：

https://docs.mongodb.com/manual/reference/mongo-shell/

搞定。。。。。。

求助：

MongoCollection collection = db.getCollection("places");

System.out.println(collection.count());  出错

System.out.println(collection.find().iterator());  出错

错误信息如下：

com.mongodb.MongoTimeoutException: Timed out after 30000 ms while waiting for a server that matches ReadPreferenceServerSelector{readPreference=primary}. Client view of cluster state is {type=UNKNOWN, servers=[{address=localhost:27017, type=UNKNOWN, state=CONNECTING, exception={com.mongodb.MongoException: org.bson.BsonInvalidOperationException: Value expected to be of type INT32 is of unexpected type STRING}, caused by {org.bson.BsonInvalidOperationException: Value expected to be of type INT32 is of unexpected type STRING}}]

at com.mongodb.connection.BaseCluster.createTimeoutException(BaseCluster.java:369)

at com.mongodb.connection.BaseCluster.selectServer(BaseCluster.java:101)

at com.mongodb.binding.ClusterBinding$ClusterBindingConnectionSource.(ClusterBinding.java:75)

at com.mongodb.binding.ClusterBinding$ClusterBindingConnectionSource.(ClusterBinding.java:71)

at com.mongodb.binding.ClusterBinding.getReadConnectionSource(ClusterBinding.java:63)

at com.mongodb.operation.OperationHelper.withConnection(OperationHelper.java:201)

at com.mongodb.operation.CountOperation.execute(CountOperation.java:206)

at com.mongodb.operation.CountOperation.execute(CountOperation.java:53)

at com.mongodb.Mongo.execute(Mongo.java:772)

at com.mongodb.Mongo$2.execute(Mongo.java:759)

at com.mongodb.MongoCollectionImpl.count(MongoCollectionImpl.java:185)

at com.mongodb.MongoCollectionImpl.count(MongoCollectionImpl.java:165)

at MongoToSinoregal.main(MongoToSinoregal.java:23)

System.out.println(collection);不出错

1、我启动监听

java -cp $INFORMIXDIR/bin/jsonListener.jar com.ibm.nosql.server.ListenerCLI -config $INFORMIXDIR/etc/jsonListener.properties -start

2、nodejs，可以采用mongo的方式连接informix，但是用java不行，求指教。

nodejs，代码如下：

var MongoClient = require('mongodb').MongoClient;

var url = 'mongodb://localhost:27017/stores_demo';

MongoClient.connect(url, function(err, db) {

   if(err){

     return console.log(err);

   }

   var collection = db.collection('customer');

   collection.find({}).toArray(function(err, items) {

       items.forEach(function(item,index){

           console.log(index,item.fname,item.lname);

       });

       db.close();

   });

});