@Pathvariable Map<String,String> is giving me HTTP Status 500 - [duplicate]

Question

I have written a request handler method in a controller class in Spring MVC. When I'm calling the http://localhost:8080/ProjectName/hello/santhosh/india URL, I got a HTTP Status 500 - exception.

This is the method:

@RequestMapping("/hello/{userName}/{country}")
public ModelAndView sayHello(@PathVariable Map<String, String> pathVar){
    String name = pathVar.get("userName");
    String country = pathVar.get("country");
    System.out.println("Hello!!" + name + " from " + country);

    ModelAndView model = new ModelAndView("login");
    model.addObject("msg","Hello!!" + name);
    return model;
}

This is the exception:

HTTP Status 500 -

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.web.bind.annotation.support.HandlerMethodInvocationException: Failed to invoke handler method [public org.springframework.web.servlet.ModelAndView com.techmahindra.controller.LoginController.sayHello(java.util.Map)]; nested exception is java.lang.IllegalStateException: Could not find @PathVariable [pathVar] in @RequestMapping org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:982) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) javax.servlet.http.HttpServlet.service(HttpServlet.java:617) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

root cause

org.springframework.web.bind.annotation.support.HandlerMethodInvocationException: Failed to invoke handler method [public org.springframework.web.servlet.ModelAndView com.techmahindra.controller.LoginController.sayHello(java.util.Map)]; nested exception is java.lang.IllegalStateException: Could not find @PathVariable [pathVar] in @RequestMapping org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:185) org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:440) org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:428) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) javax.servlet.http.HttpServlet.service(HttpServlet.java:617) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

root cause

java.lang.IllegalStateException: Could not find @PathVariable [pathVar] in @RequestMapping org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter$ServletHandlerMethodInvoker.resolvePathVariable(AnnotationMethodHandlerAdapter.java:856) org.springframework.web.bind.annotation.support.HandlerMethodInvoker.resolvePathVariable(HandlerMethodInvoker.java:718) org.springframework.web.bind.annotation.support.HandlerMethodInvoker.resolveHandlerArguments(HandlerMethodInvoker.java:367) org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:175) org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:440) org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:428) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) javax.servlet.http.HttpServlet.service(HttpServlet.java:617) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

docs.spring.io/spring/docs/current/spring-framework-reference/… — Ali Dehghani
– Ali Dehghani, Commented Aug 31, 2016 at 22:07
Which part of "Could not find @PathVariable [pathVar] in @RequestMapping" is confusing you, when the path /hello/{userName}/{country} only defines the variables userName and country? Change method to sayHello(@PathVariable String userName, @PathVariable String country). — Andreas
– Andreas, Commented Aug 31, 2016 at 22:12
Which version of Spring are you using? I tested your method in 3.2.11.RELEASE version of Spring project I have and the mapping of path variables into the map worked fine. — Naymesh Mistry
– Naymesh Mistry, Commented Aug 31, 2016 at 22:15

Community · Accepted Answer · 2017-05-23 10:29:11Z

0

I have found the answer from this link. Could not find @PathVariable [pathVars] in @RequestMapping Spring MVC

I need to add <mvc:annotation-driven /> in my dispatcher-servlet.xml

edited May 23, 2017 at 10:29

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answered Aug 31, 2016 at 22:16

santhosh2759

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