Unable to connect Mongo Db from Spring Application - spring

Question

I am trying to connect mongo db from spring application and i m getting the following error
Unable to connect to any servers; nested exception is com.mongodb.MongoServerSelectionException: Unable to connect to any servers
DAO Code:
productList = mongoTemplate.findAll(PSAProduct.class, GSM_STATS_PSA3);
Mongo DB Template:
public class MongoDBTemplate
{
static String MONGO_SERVER_IP;
private MongoTemplate mongoTemplate;
private static final org.slf4j.Logger logger = LoggerFactory.getLogger(ProductController.class);
public static #Bean MongoTemplate getTemplate(String databaseName)
{
MongoDBTemplate mongoDBTemplate=new MongoDBTemplate();
try
{
mongoDBTemplate.mongoTemplate = new MongoTemplate(new SimpleMongoDbFactory(new MongoClient("172.16.19.261:27017"), databaseName));
}catch(Exception ee)
{
ee.printStackTrace();
}
return mongoDBTemplate.mongoTemplate;
}
}
Stacktrace :
31804 [http-8080-1] ERROR com.teledna.pms.dao.psa.PSADao - Exception Occured while fetching entity count from DAO Unable to connect to any servers; nested exception is com.mongodb.MongoServerSelectionException: Unable to connect to any servers
org.springframework.dao.InvalidDataAccessResourceUsageException: Unable to connect to any servers; nested exception is com.mongodb.MongoServerSelectionException: Unable to connect to any servers
at org.springframework.data.mongodb.core.MongoExceptionTranslator.translateExceptionIfPossible(MongoExceptionTranslator.java:64)
at org.springframework.data.mongodb.core.MongoTemplate.potentiallyConvertRuntimeException(MongoTemplate.java:1665)
at org.springframework.data.mongodb.core.MongoTemplate.executeFindMultiInternal(MongoTemplate.java:1548)
at org.springframework.data.mongodb.core.MongoTemplate.findAll(MongoTemplate.java:1062)
at com.teledna.pms.dao.psa.PSADao.getPSA2Product(PSADao.java:44)
at com.teledna.pms.service.psa.PSAService.getPSA2Product(PSAService.java:39)
at com.teledna.pms.controller.PSAController.getPSA2Product(PSAController.java:40)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:623)
at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:746)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:687)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:915)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:811)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:796)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:713)
Caused by: com.mongodb.MongoServerSelectionException: Unable to connect to any servers
at com.mongodb.BaseCluster.getDescription(BaseCluster.java:112)
at com.mongodb.DBTCPConnector.getClusterDescription(DBTCPConnector.java:401)
at com.mongodb.DBTCPConnector.getType(DBTCPConnector.java:574)
at com.mongodb.DBTCPConnector.isMongosConnection(DBTCPConnector.java:375)
at com.mongodb.Mongo.isMongosConnection(Mongo.java:645)
at com.mongodb.DBCursor._check(DBCursor.java:454)
at com.mongodb.DBCursor._hasNext(DBCursor.java:546)
at com.mongodb.DBCursor.hasNext(DBCursor.java:571)
at org.springframework.data.mongodb.core.MongoTemplate.executeFindMultiInternal(MongoTemplate.java:1534)
... 33 more

Answer 1

try to create
#Bean
public MongoDbFactory mongoDbFactory() throws MongoException, UnknownHostException {
MongoDbFactory factory = new SimpleMongoDbFactory(new MongoURI(env.getProperty("mongo_uri.dev")));
return factory;
}
and the mongo mongo_uri is in the format:
mongo_uri.heroku=mongodb://user:pass#ds037097.mongolab.com:37097/heroku_app13338532
create your MongoTemplate in that way:
mongoDBTemplate.mongoTemplate = new MongoTemplate(mongoDbFactory());