“青楓江上秋帆遠，白帝城邊古木疏”
如果你的方法引數裡面直接有request，像下面這樣：

    @RequestMapping("/test.json")
    @ResponseBody
    public Map<String,Object> getIpAndLoginname(HttpServletRequest request, HttpServletResponse response){
        Map<String,Object> resultMap = new HashMap<>();
        return resultMap;
    }
 

這樣的就可以直接通過request獲取ip和埠

@RequestMapping("/test.json")
    @ResponseBody
    public Map<String,Object> getIpAndLoginname(HttpServletRequest request, HttpServletResponse response){
        Map<String,Object> resultMap = new HashMap<>();
        //獲取IP
        String remoteAddr = request.getRemoteAddr();
        String
 
 forwarded = request.getHeader("X-Forwarded-For");
        String realIp = request.getHeader("X-Real-IP");

        String ip = null;
        if (realIp == null) {
            if (forwarded == null) {
                ip = remoteAddr;
            } else {
                ip = remoteAddr + "/" + forwarded.split(","
 
)[0];
            }
        } else {
            if (realIp.equals(forwarded)) {
                ip = realIp;
            } else {
                if(forwarded != null){
                    forwarded = forwarded.split(",")[0];
                }
                ip = realIp + "/" + forwarded;
            }
        }
        resultMap.put("serverIp",ip);
        resultMap.put("serverPort",request.getRemotePort());    //埠
        resultMap.put("sessionId",request.getSession().getId());    //會話ID
        return resultMap;
    }

第二種情況，你的方法裡面沒有直接的request，那麼，首先你需要獲得request，然後再利用上面的方法獲取ip和埠，下面的程式碼獲取request：

 //獲取request
 HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();