java - spring 404 controller not found -

i have problem spring, because receive 404 error not found.

my web.xml

<?xml version="1.0" encoding="utf-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/xmlschema-instance" xmlns="http://java.sun.com/xml/ns/javaee"      xsi:schemalocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"      version="3.0">   <servlet>     <servlet-name>mvc-dispatcher</servlet-name>     <servlet-class>org.springframework.web.servlet.dispatcherservlet</servlet-class>     <load-on-startup>1</load-on-startup> </servlet>  <servlet-mapping>     <servlet-name>mvc-dispatcher</servlet-name>     <url-pattern>/project_name/*</url-pattern> </servlet-mapping>  <context-param>     <param-name>contextconfiglocation</param-name>     <param-value>         /web-inf/mvc-dispatcher-servlet.xml     </param-value> </context-param>  <listener>     <listener-class>org.springframework.web.context.contextloaderlistener</listener-class> </listener>   </web-app> 

i have mvc-dispatcher.xml file , controller

<?xml version="1.0" encoding="utf-8"?> <beans xmlns="http://www.springframework.org/schema/beans"    xmlns:xsi="http://www.w3.org/2001/xmlschema-instance"    xmlns:context="http://www.springframework.org/schema/context"    xmlns:mvc="http://www.springframework.org/schema/mvc"    xsi:schemalocation="http://www.springframework.org/schema/beans    http://www.springframework.org/schema/beans/spring-beans.xsd    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd    http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">  <context:annotation-config/> <mvc:annotation-driven/> <context:component-scan         base-package="com.project_name.web.controllers"/>   </beans> 

and controller

@controller public class testcontroller {  @requestmapping(value="/test", method = requestmethod.get) public @responsebody responseentity<boolean> create() {     return new responseentity<>(true, httpstatus.ok); }  } 

when query localhost:8080/project_name/test got 404 not found error. localhost:8080/project_name returns 200 status code wrong ?

you don't need mention context root in url-pattern. url-pattern should /, means any/every url/request sholuld served dispatcher servlet.

<servlet-mapping>     <servlet-name>mvc-dispatcher</servlet-name>     <url-pattern>/</url-pattern> </servlet-mapping> 

as have mentioned url-pattern /project_name/*, means url in form http://localhost:8080/project_name(context_root)/project_name/anything forwarded dispatcher servlet , that's why localhost:8080/project_name/project_name/test working fine.