Spring MVC的@CookieValue注解的使用

拼搏现实的明天。 2021-07-24 13:23 696阅读 0赞

**一 控制器**

package org.fkit.controller;
    
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.CookieValue;
    import org.springframework.web.bind.annotation.GetMapping;
    
    @Controller
    public class CookieValueController{
    
        // 测试@CookieValue注解
        // 该方法映射的请求为 /cookieValueTest
        @GetMapping(value="/cookieValueTest")
         public void cookieValueTest(
                 @CookieValue(value="JSESSIONID", defaultValue="") String sessionId) {
            System.out.println("通过@CookieValue获得JSESSIONID： " + sessionId);
         }
    
    }

**二 视图**

<%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8"%>
    <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"  "http://www.w3.org/TR/html4/loose.dtd">
    <html>
    <head>
    <meta http-equiv="Content-Type" content="text/html;  charset=UTF-8">
    <title>@CookieValue测试</title>
    </head>
    <body>
    <h2>@CookieValue测试</h2>
    <a href="cookieValueTest">测试@CookieValue注解</a>
    
    </body>
    </html>

**三 配置文件**

<?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:p="http://www.springframework.org/schema/p"
        xmlns:mvc="http://www.springframework.org/schema/mvc"
         xmlns:context="http://www.springframework.org/schema/context"
        xsi:schemaLocation="
            http://www.springframework.org/schema/beans
             http://www.springframework.org/schema/beans/spring-beans.xsd
            http://www.springframework.org/schema/mvc
            http://www.springframework.org/schema/mvc/spring-mvc.xsd     
            http://www.springframework.org/schema/context
             http://www.springframework.org/schema/context/spring-context.xsd">
            
        
        <context:component-scan base-package="org.fkit.controller"/>
         
        <mvc:annotation-driven/>
         
        <mvc:default-servlet-handler/>
        
        
         <bean id="viewResolver"
               class="org.springframework.web.servlet.view.InternalResourceViewResolver"
              p:prefix="/WEB-INF/content/" p:suffix=".jsp"/>
        
    </beans>

**四 测试**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70][]

控制台输出

通过@CookieValue获得JSESSIONID： 63C4F2F3F14D6E3DDB0E6EE049DF915D

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70]: /images/20210724/7c01ea41d2154e53a0015510ded52f8c.png