2019年05月05日 开源的IP 地址定位库 ip2region 1.9.0 发布了,功能还是很不错的,下面我就应用下ip2region,来解析ip的地址
一、下载ip库并解压
地址为:https://github.com/lionsoul2014/ip2region/archive/v1.9.0-release.tar.gz
解压
把ip2region.db粘贴到我们maven工程的resources下
二、添加ip2region依赖
<dependency>
<groupId>org.lionsoul</groupId>
<artifactId>ip2region</artifactId>
<version>1.7.2</version>
</dependency>
三、实现IPUtil工具类
import java.io.File;
import java.lang.reflect.Method;
import org.lionsoul.ip2region.DataBlock;
import org.lionsoul.ip2region.DbConfig;
import org.lionsoul.ip2region.DbSearcher;
import org.lionsoul.ip2region.Util;
public class IPUtil {
public static String getCityInfo(String ip){
//db
String dbPath = IPUtil.class.getResource("/ip2region.db").getPath();
File file = new File(dbPath);
if ( file.exists() == false ) {
System.out.println("Error: Invalid ip2region.db file");
}
//查询算法
int algorithm = DbSearcher.BTREE_ALGORITHM; //B-tree
//DbSearcher.BINARY_ALGORITHM //Binary
//DbSearcher.MEMORY_ALGORITYM //Memory
try {
DbConfig config = new DbConfig();
DbSearcher searcher = new DbSearcher(config, dbPath);
//define the method
Method method = null;
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;
}
DataBlock dataBlock = null;
if ( Util.isIpAddress(ip) == false ) {
System.out.println("Error: Invalid ip address");
}
dataBlock = (DataBlock) method.invoke(searcher, ip);
return dataBlock.getRegion();
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
}
四、测试
这里我是用的Junit进行单元测试,你也可以自己写个main方法测试即可
添加junit依赖
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
</dependency>
编写测试类
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
public class IPUtilTest {
private IPUtil ipUtil;
@Before
public void setUp(){
ipUtil=new IPUtil();
}
@After
public void tearDown(){
ipUtil=null;
}
@Test
public void getCityInfo(){
String ip = "220.248.12.158";
System.out.println(ipUtil.getCityInfo(ip));
}
}
总结:很方便,其实我觉得比纯真的要好多了~
原文地址:https://blog.51cto.com/14309075/2390060
时间: 2024-11-08 14:31:49