Question

java.lang.IllegalStateException：在@RequestMapping中找不到@PathVariable [pathVars]

如何将Spring 4.1.6 RELEASE版本更新到我的项目？

 @Controller
 public class HelloController {

  @RequestMapping("/welcome/{countryName}/{userName}") 
  public ModelAndView helloWorld(@PathVariable Map < String, String > pathVars) {
  String name = pathVars.get("userName");
  String country = pathVars.get("countryName");
  ModelAndView modelAndView = new ModelAndView("HelloPage");
  modelAndView.addObject("msg", "Hello " + name + "You are from" + country);
  return modelAndView;
 }

这是我的spring-dispatcher-servlet.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans     
        http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
        http://www.springframework.org/schema/mvc 
        http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
        http://www.springframework.org/schema/context 
        http://www.springframework.org/schema/context/spring-context-3.2.xsd">

        <context:component-scan base-package="com.learningspringmvc.controller"></context:component-scan>
        <mvc:annotation-driven/>
        <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix">
            <value>/WEB-INF/</value>
        </property>
       <property name="suffix">
            <value>.jsp</value>
       </property>
        </bean>
        </beans>

Answer 1

您尝试使用的PathVariableMapMethodArgumentResolver存在于Spring 4.1.6 RELEASE中，因此您的代码应该有效。

您可能没有启用Spring Web MVC。

您需要在xml配置中加入<mvc:annotation-driven/>，或使用@EnableWebMvc。

如何将Spring 4.1.6.RELEASE版本更新到我的项目？

1 个答案: