前后端分离Java获取发送请求的电脑的IP地址
后端
获取发送请求的电脑的IP地址
package com.receiptback.controller;
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 Map<String,String> 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();
}
Map map = new HashMap();
map.put("IP",ip);
return map;
}
}
前端
调用接口
React.$axios.post('/GetIP/ip').then((res)=>{
console.log(res)
this.setState({
de:res['IP']
})
}).catch((err)=>{
console.log(err)
});
注意[○・`Д´・ ○]
如果axios的url是localhost的,打印出的ip是127.0.0.1或者0.0.0.0.0.0.0.1,把URL改成ip地址类型的就可以显示发送请求的电脑的真实ip地址。(╹▽╹)