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package com.ruoyi.common.core.utils.ip;
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import cn.hutool.core.io.FileUtil;
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import cn.hutool.core.net.Ipv4Util;
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import cn.hutool.core.util.ObjectUtil;
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import cn.hutool.extra.servlet.ServletUtil;
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import com.ruoyi.common.core.exception.ServiceException;
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import lombok.extern.slf4j.Slf4j;
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import org.lionsoul.ip2region.xdb.Searcher;
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import javax.servlet.http.HttpServletRequest;
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import java.io.File;
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import java.io.InputStream;
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/**
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* 根据ip地址定位工具类，离线方式
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* 参考地址：<a href="https://gitee.com/lionsoul/ip2region/tree/master/binding/java">集成 ip2region 实现离线IP地址定位库</a>
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*
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* @author lishuyan
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*/
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@Slf4j
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public class IpAddressUtil {
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private static final String LOCAL_REMOTE_HOST = "0:0:0:0:0:0:0:1";
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private static final Searcher searcher;
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/**
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* 获取客户端ip
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*/
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public static String getIp(HttpServletRequest request) {
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if (ObjectUtil.isEmpty(request)) {
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return Ipv4Util.LOCAL_IP;
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} else {
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try {
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String remoteHost = ServletUtil.getClientIP(request);
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return LOCAL_REMOTE_HOST.equals(remoteHost) ? Ipv4Util.LOCAL_IP : remoteHost;
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} catch (Exception e) {
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return Ipv4Util.LOCAL_IP;
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}
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}
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}
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static {
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String fileName = "/ip2region.xdb";
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File existFile = FileUtil.file(FileUtil.getTmpDir() + FileUtil.FILE_SEPARATOR + fileName);
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if (!FileUtil.exist(existFile)) {
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InputStream resourceAsStream = IpAddressUtil.class.getResourceAsStream(fileName);
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if (ObjectUtil.isEmpty(resourceAsStream)) {
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throw new ServiceException(">>>>>>>> IpAddressUtil初始化失败，原因：IP地址库数据不存在！");
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}
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FileUtil.writeFromStream(resourceAsStream, existFile);
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}
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String dbPath = existFile.getPath();
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// 1、从 dbPath 加载整个 xdb 到内存。
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byte[] cBuff;
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try {
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cBuff = Searcher.loadContentFromFile(dbPath);
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} catch (Exception e) {
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throw new ServiceException(">>>>>>>> IpAddressUtil初始化失败，原因：从ip2region.xdb文件加载内容失败！" + e.getMessage());
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}
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// 2、使用上述的 cBuff 创建一个完全基于内存的查询对象。
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try {
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searcher = Searcher.newWithBuffer(cBuff);
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} catch (Exception e) {
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throw new ServiceException(">>>>>>>> IpAddressUtil初始化失败，原因：" + e.getMessage());
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}
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}
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/**
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* 根据IP地址离线获取城市
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*/
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public static String getCityInfo(String ip) {
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try {
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ip = ip.trim();
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// 3、执行查询
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String region = searcher.search(ip);
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return region.replace("0|", "").replace("|0", "");
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} catch (Exception e) {
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log.error("IP地址离线获取城市异常 {}", ip);
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return "未知";
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}
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}
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}
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lishuyan
2 years ago