使用Java获取发送请求的电脑的IP地址

桃扇骨 2021-09-28 16:46 535阅读 0赞

# 本人公众号上线啦！！！ #

公众号与博客名一样：**没有腹肌的程序猿**  
公众号文章类型：工作上所遇到的需求实现方案分享。  
此外也会提供一些数据集供大家使用。（这个还在规划中，毕竟打工人时间挺紧的，哈哈哈哈）  
到时候也会不定期给大家抽一些小东西哦。

## 获取发送请求的电脑的IP地址，并返回json格式数据。 ##

package com.ssm.controller;
    
    import net.sf.json.JSON;
    import net.sf.json.JSONObject;
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.CrossOrigin;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.ResponseBody;
    
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    import java.util.HashMap;
    import java.util.Map;
    
    @Controller
    @CrossOrigin
    @RequestMapping(value = "GetIP")
    public class IPController {
    
        @ResponseBody
        @RequestMapping(value = "ip")
        public JSON getIP(HttpServletRequest request, HttpServletResponse response) {
    
            String ip = request.getHeader("x-forwarded-for");
            if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
                ip = request.getHeader("Proxy-Client-IP");
            }
            if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
                ip = request.getHeader("WL-Proxy-Client-IP");
            }
            if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
                ip = request.getHeader("HTTP_CLIENT_IP");
            }
            if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
                ip = request.getHeader("HTTP_X_FORWARDED_FOR");
            }
            if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
                ip = request.getRemoteAddr();
            }
    
    
            //构建json
            Map map = new HashMap();
            map.put("IP",ip);
            JSONObject jsonObject = JSONObject.fromObject(map);
            return jsonObject;
        }
    }