ip2region IP地址解析工具

地址解析工具"/>

ip2region IP地址解析工具

Java IP地址解析工具ip2region，什么是ip2region？

     ip2region - 准确率99.9%的离线IP地址定位库，0.0x毫秒级查询，ip2region.db数据库只有数MB，提供了java,php,c,python,nodejs,golang,c#等查询绑定和Binary,B-tree,内存三种查询算法。

实现的基本流程：

一、导入依赖：

<dependency><groupId>org.lionsoul</groupId><artifactId>ip2region</artifactId><version>1.7.2</version></dependency>

工程的所有依赖 （xml文件内代码，没什么用）：

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns=".0.0" xmlns:xsi=""xsi:schemaLocation=".0.0 .0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.7.1</version><relativePath/> <!-- lookup parent from repository --></parent><groupId>com.example</groupId><artifactId>Ipsearch</artifactId><version>0.0.1-SNAPSHOT</version><name>Ipsearch</name><description>Ipsearch</description><properties><java.version>1.8</java.version></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><!-- ip2region --><dependency><groupId>org.lionsoul</groupId><artifactId>ip2region</artifactId><version>1.7.2</version></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><version>2.5.12 </version></plugin></plugins></build></project>

二、下载ip2region.db文件：

下载后将文件放到resources文件夹下：

三、配置一个工具类IPUtil，代码如下：

package com.example.ipsearch.Sutil;import org.lionsoul.ip2region.DataBlock;
import org.lionsoul.ip2region.DbConfig;
import org.lionsoul.ip2region.DbSearcher;
import org.lionsoul.ip2region.Util;import javax.servlet.http.HttpServletRequest;
import java.io.File;
import java.lang.reflect.Method;
import java.URL;public class IPUtil {/*** 获取IP地址* @param request* @return*/public static String getIpAddr(HttpServletRequest request) {String ip = request.getHeader("x-forwarded-for");if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {ip = request.getHeader("X-Real-IP");}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];}return ip;}/*** 根据IP地址获取城市* @param ip* @return*/public static String getCityInfo(String ip) {URL url = IPUtil.class.getClassLoader().getResource("ip2region.db");File file;if (url != null) {file = new File(url.getFile());} else {return null;}if (!file.exists()) {System.out.println("Error: Invalid ip2region.db file, filePath：" + file.getPath());return null;}//查询算法int algorithm = DbSearcher.BTREE_ALGORITHM; //B-tree//DbSearcher.BINARY_ALGORITHM //Binary//DbSearcher.MEMORY_ALGORITYM //Memorytry {DbConfig config = new DbConfig();DbSearcher searcher = new DbSearcher(config, file.getPath());Method method;switch ( algorithm ){case DbSearcher.BTREE_ALGORITHM:method = searcher.getClass().getMethod("btreeSearch", String.class);break;case DbSearcher.BINARY_ALGORITHM:method = searcher.getClass().getMethod("binarySearch", String.class);break;case DbSearcher.MEMORY_ALGORITYM:method = searcher.getClass().getMethod("memorySearch", String.class);break;default:return null;}DataBlock dataBlock;if (!Util.isIpAddress(ip)) {System.out.println("Error: Invalid ip address");return null;}dataBlock  = (DataBlock) method.invoke(searcher, ip);return dataBlock.getRegion();} catch (Exception e) {e.printStackTrace();}return null;}}

 四、调用方法：

只调用类中的第二个方法即可实现ip地址向所属地的转化：

System.out.println(IPUtil.getCityInfo("ip"));

这里把"ip"换成具体的ip地址，运行即可实现单个ip地址转化为所属地的输出。

若想输出上万个ip的所属地，可以把ip全部放到txt文件里，通过BufferedReader类中的方法读取txt文件中的ip，存到Arraylist中 用循环全部输出，具体代码如下：

package com.example.ipsearch;import com.example.ipsearch.Sutil.IPUtil;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;import java.io.*;
import java.util.ArrayList;
import java.util.List;@SpringBootApplication
public class IpsearchApplication {public static void main(String[] args) throws IOException {SpringApplication.run(IpsearchApplication.class, args);File a=new File("E:\\test.txt");FileReader b = null; // 创建FileInputStream类对象读取FileBufferedReader c = null; // 创建reader缓冲区将文件流装进去b = new FileReader(a);c = new BufferedReader(b);String e=null;List <String> f=new ArrayList<>();while ((e=c.readLine())!=null){f.add(e);}b.close();c.close();for(String f1:f){System.out.println(IPUtil.getCityInfo(f1));}};}

五、工程框架结构及运行结果展示：