In this chapter we will talk about @PathVariable
Or use the examples used in the previous articles
To use @PathVariable, you need to configure the spring-dispather-servlet.xml first. The content of the spring-dispather-servlet.xml file is as follows:
<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/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:component-scan base-package="com.haha"/>
<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>
@PathVariable can implement setting parameters on the url path
package com.haha;
import java.util.Map;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
@Controller
public class HelloController{
@RequestMapping("/welcome/{countryName}/{userName}")
public ModelAndView helloWorld (@PathVariable Map <String, String> pathVars)
// TODO Auto-generated method stub
String name=pathVars.get("userName");
String country = pathVars.get("countryName");
ModelAndView modelandview = new ModelAndView("HelloPage");
modelandview.addObject("welcomeMessage","Hi, "+name+", you are from" +country );
return modelandview;
}
}
Enter http://localhost:8080/FirstSpringMVCPro/welcome/China/XiaoMing in the browser to get the result as follows:
