spring - No matching bean of type [com.sachin.dao.StockDao] found for dependency -

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i getting error when trying use dependency injection in spring mvc.

no matching bean of type [com.sachin.dao.stockdao] found dependency: expected @ least 1 bean qualifies autowire candidate dependency. dependency annotations: {}; nested exception org.springframework.beans.factory.nosuchbeandefinitionexception: no matching bean of type [com.sachin.dao.stockdao] found dependency: expected @ least 1 bean qualifies autowire candidate dependency. dependency annotations: {}

i think making mistake in annotations. trying inject stockdaoimpl in homcontroller.

this controller file homecontroller.java

@controller public class homecontroller {  private final stockdao dao;  @autowired  public homecontroller(stockdao dao){     this.dao = dao; }  @requestmapping(value = "/", method = requestmethod.get) public string home(locale locale, model model) {             return "home"; }  @requestmapping(value = "/stockgoogle/", method = requestmethod.get) public @responsebody stock stockgoogle(locale locale, model model) {         //stockdaoimpl si = new stockdaoimpl();     stock s=dao.listgoogle();     system.out.println("reached here");     model.addattribute("s", s );             return s; }

i have created configuration file beanconfiguration , using create bean

@configuration public class beanconfiguration { @bean public stockdao stockdao(){   return new stockdaoimpl(); } }

i have stockdaoimpl implement data retreival.

public class stockdaoimpl implements stockdao {     @override public stock listgoogle() {     connection con = null;     stock s = null;     try {         class.forname("org.postgresql.driver");         con = drivermanager            .getconnection("jdbc:postgresql://localhost:5432/webapp",            "postgres", "sachin");                      statement stmt = con.createstatement();         resultset rs = stmt.executequery( "select * \"public\".\"historical\" " );                      rs.next();         string  name = rs.getstring("name");         s = new stock(name);                         rs.close();         stmt.close();         con.close();                  } catch (exception e) {         e.printstacktrace();     }     return s; } }

the above implementing following interface:

public interface stockdao { public stock listgoogle(); }

am missing something. there more annotations have put. or @ other place. not sure if creating configuration class correctly. can please help?

you need point configuration class(es). java configuration class (for example, in beanconfiguration class), add: 

@componentscan(basepackages="com.sachin")

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