java 访问ip限制功能片段

最新推荐文章于 2024-04-29 10:00:00 发布

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最新推荐文章于 2024-04-29 10:00:00 发布

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分类专栏： java 文章标签： java

本文链接：https://blog.youkuaiyun.com/qq_41607516/article/details/125770358

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该代码段展示了如何从HTTP请求中获取用户名、密码和IP地址，主要用于用户登录过程。首先，它尝试从不同的HTTP头中获取客户端IP，如果IP不可用或为本地环回地址，将使用默认值。然后根据IP地址的前缀判断是内部网络还是外部网络，从而调用不同的服务方法进行用户验证。验证成功后，将用户信息存储在session中。

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public ResponseResult login(HttpServletRequest request){
       String userName = request.getParameter("i_username");
       String password = request.getParameter("i_password");
       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.getRemoteAddr();
}
if ("0:0:0:0:0:0:0:1".equals(ip)) {
ip = "127.0.0.1";
}
if (ip.split(",").length > 1) {
ip = ip.split(",")[0];
}
System.out.println("--ip--"+ip);
if(ip.startsWith("172.16")||ip.startsWith("192.168")||ip.startsWith("127.0")){
   ResponseResult result = userService.login(userName, password);
       if(result.getSuccess()) {
           request.getSession().setAttribute("userName", userName);
           request.getSession().setAttribute("user", result.getData());
       }
       return result;
}else{
   ResponseResult result = userService.getIpState(userName, password);
       if(result.getSuccess()) {
           request.getSession().setAttribute("userName", userName);
           request.getSession().setAttribute("user", result.getData());
       }
       return result;
}

   }