Spring MVC的@RequestHeader注解

梦里梦外; 2021-07-24 17:05 355阅读 0赞

**一 控制器**

package org.fkit.controller;
    
    
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.RequestHeader;
    
    @Controller
    public class RequestHeaderController{
        
        // 测试@RequestHeader注解
        // 该方法映射的请求为 /requestHeaderTest
        @GetMapping(value="/requestHeaderTest")
         public void requestHeaderTest(
                 @RequestHeader("User-Agent") String userAgent,  
                 @RequestHeader(value="Accept") String[] accepts) {
             System.out.println("通过@requestHeaderTest获得User-Agent： " + userAgent);
             System.out.println("通过@requestHeaderTest获得Accept： ");
             // 循环输出头信息
             for(String accept : accepts){
                 System.out.println(accept);
             }
         }
    
    }

**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>@RequestHeader测试</title>
    </head>
    <body>
    <h2>@RequestHeader测试</h2>
    <a href="requestHeaderTest">测试@RequestHeader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][]

通过@requestHeaderTest获得User-Agent： Mozilla/5.0 (Windows NT  10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko)  Chrome/74.0.3729.169 Safari/537.36
    通过@requestHeaderTest获得Accept：
    text/html
    application/xhtml+xml
    application/xml;q=0.9
    image/webp
    image/apng
    */*;q=0.8
    application/signed-exchange;v=b3

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70]: /images/20210724/91c28225aebd420c8dfe62f40c72b3b5.png