Java中使用HttpServletRequest获取ip和端口-详解 【代码】Java中使用HttpServletRequest获取ip和端口-详解。

目录

1.简单例子

2.详细使用例子---Java项目

2.1.Controller层

2.2service层

2.2.1接口

2.2.2serviceImpl实现类

3.IpUtils工具类

1.简单例子

也可以直接用

public void doGet(HttpServletRequest request, HttpServletResponse response)
 throws ServletException, IOException {
 String ServerName = request.getServerName();//返回服务器的主机名
 String ServerPort = request.getServerPort();//返回服务器的端口号
 
 String uri = request.getRequestURI();//返回请求行中的资源名称
 String url = request.getRequestURL().toString();//获得客户端发送请求的完整url
 String ip = request.getRemoteAddr();//返回发出请求的IP地址
 String params = request.getQueryString();//返回请求行中的参数部分
 String host=request.getRemoteHost();//返回发出请求的客户机的主机名
 int port =request.getRemotePort();//返回发出请求的客户机的端口号
 
 System.out.println(ServerName);
 System.out.println(ServerPort);
 
 System.out.println(ip);
 System.out.println(url);
 System.out.println(uri);
 System.out.println(params);
 System.out.println(host);
 System.out.println(port);
}

2.详细使用例子---Java项目

真正用到在serviceImpl实现类中

2.1.Controller层

@RestController
@RequestMapping("/api")
public class DataReportController {
private final DataReportService dataReportService;
private final BusinessMsgCodeProperties props;
@Autowired
public DataReportController(DataReportService dataReportService, BusinessMsgCodeProperties props){
 this.dataReportService = dataReportService;
 this.props = props;
}
/**
 * 数据上报接⼝
 */
@PostMapping("/dataReport")//这个接口既传文件参数又传实体实参,request不是参数,前端不传后端可自行获取
public Resource dataReport(@RequestPart(value = "file", required = true) MultipartFile file, @RequestPart @Validated DataReportInDto dto, HttpServletRequest request){
 String code = dataReportService.dataReport(file,dto,request);
 return new Resource(props.getProcessStatus(code)); //Resource为自行封装的返回类型,可以用不用
}
}

2.2service层

2.2.1接口

public interface DataReportService extends IService {
 /**
 * 数据上报接⼝
 */
String dataReport(MultipartFile file, DataReportInDto dto, HttpServletRequest request);
}

2.2.2serviceImpl实现类

@Service
@Slf4j
public class DataReportServiceImpl extends ServiceImpl implements DataReportService {
private final DataReportMapper dataReportMapper;
@Autowired
public DataReportServiceImpl(DataReportMapper dataReportMapper){
 this.dataReportMapper = dataReportMapper;
}
@Override
public String dataReport(MultipartFile file, DataReportInDto dto, HttpServletRequest request) {
 //一、获取调用者的ip+port
 String ip = "";
 String port = "";
 String loginName = "";
 try {
 ip = IpUtils.getRemoteHost(request); //自己封装一个工具类(对特殊情况做了一定处理)
 String ip1 = request.getRemoteAddr(); //直接获取
 port = String.valueOf(request.getRemotePort());
 System.out.println("远程端的ip1:"+ip1);
 System.out.println("远程的端口:"+ip);
 System.out.println("远程端口:"+port);
 log.info("获取调用者ip:"+ip+" ,"+"port:"+port);
 } catch (Exception e) {
 e.printStackTrace();
 log.info("获取调用者ip+port失败");
 }
return "COMMON_ERROR";
}
}

3.IpUtils工具类

直接整个粘贴就能用

package com.nengyy.speed_rest_server.utils; //所在包
import org.apache.commons.lang3.StringUtils;
import javax.servlet.http.HttpServletRequest;
public class IpUtils {
 public static String getRemoteHost(HttpServletRequest request){
 String ip = request.getHeader("x-forwarded-for");
 if(StringUtils.isNoneBlank(ip) & !"unknown".equalsIgnoreCase(ip)){
 int idx = ip.indexOf(",");
 if(idx != -1){
 ip = ip.substring(0, idx);
 }
 }
 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();
 }
 return ip.equals("0:0:0:0:0:0:0:1")?"127.0.0.1":ip;
 }
}