根据IP获取城市-Java调用“ip2region”地址库实例

我不是女神ヾ 2023-07-08 10:30 28阅读 0赞

根据IP获取城市-Java调用“ip2region”地址库实例-妈妈再也不用担心我的ip地址定位啦

*  **ip2region**

准确率99.9%的ip地址定位库，0.0x毫秒级查询，数据库文件大小只有1.5M，提供了java,php,c,python,nodejs,golang查询绑定和Binary,B树,内存三种查询算法

github地址：[https://github.com/lionsoul2014/ip2region][https_github.com_lionsoul2014_ip2region]

*  下载v1.3版本：[https://github.com/lionsoul2014/ip2region/releases/tag/v1.3-release][https_github.com_lionsoul2014_ip2region_releases_tag_v1.3-release]

解压目录如下图：

![format_png][]

*  新建java项目，导入binding/java下的代码，并复制”data/ip2region.db”到“src目录

![format_png 1][]

*  创建“IPUtil”.java ,内容参考”org.lionsoul.ip2region.test.TestSearcher.java“  
     
    
        maven仓库地址
        <dependency>
            <groupId>org.lionsoul</groupId>
            <artifactId>ip2region</artifactId>
            <version>1.7.2</version>
        </dependency>
    
        gradle
        compile group: 'org.lionsoul', name: 'ip2region', version: '1.7.2'

1.  `package com.xx;`
2.   
3.  `import java.io.File;`
4.  `import java.lang.reflect.Method;`
5.   
6.  `import org.lionsoul.ip2region.DataBlock;`
7.  `import org.lionsoul.ip2region.DbConfig;`
8.  `import org.lionsoul.ip2region.DbSearcher;`
9.  `import org.lionsoul.ip2region.Util;`
10.  
11. `public class IPUtil {`
12.  
13. `public static String getCityInfo(String ip){`
14.  
15. `//db`
16. `String dbPath = IPUtil.class.getResource("/ip2region.db").getPath();`
17.  
18. `File file = new File(dbPath);`
19. `if ( file.exists() == false ) {`
20. `System.out.println("Error: Invalid ip2region.db file");`
21. `}`
22.  
23. `//查询算法`
24. `int algorithm = DbSearcher.BTREE_ALGORITHM; //B-tree`
25. `//DbSearcher.BINARY_ALGORITHM //Binary`
26. `//DbSearcher.MEMORY_ALGORITYM //Memory`
27. `try {`
28. `DbConfig config = new DbConfig();`
29. `DbSearcher searcher = new DbSearcher(config, dbPath);`
30.  
31. `//define the method`
32. `Method method = null;`
33. `switch ( algorithm )`
34. `{`
35. `case DbSearcher.BTREE_ALGORITHM:`
36. `method = searcher.getClass().getMethod("btreeSearch", String.class);`
37. `break;`
38. `case DbSearcher.BINARY_ALGORITHM:`
39. `method = searcher.getClass().getMethod("binarySearch", String.class);`
40. `break;`
41. `case DbSearcher.MEMORY_ALGORITYM:`
42. `method = searcher.getClass().getMethod("memorySearch", String.class);`
43. `break;`
44. `}`
45.  
46. `DataBlock dataBlock = null;`
47. `if ( Util.isIpAddress(ip) == false ) {`
48. `System.out.println("Error: Invalid ip address");`
49. `}`
50.  
51. `dataBlock = (DataBlock) method.invoke(searcher, ip);`
52.  
53. `return dataBlock.getRegion();`
54.  
55. `} catch (Exception e) {`
56. `e.printStackTrace();`
57. `}`
58.  
59. `return null;`
60. `}`
61.  
62.  
63. `public static void main(String[] args) throws Exception{`
64. `System.err.println(getCityInfo("220.248.12.158"));`
65. `}`
66. `}`

运行结果如下：

![format_png 2][]

[https_github.com_lionsoul2014_ip2region]: https://github.com/lionsoul2014/ip2region
[https_github.com_lionsoul2014_ip2region_releases_tag_v1.3-release]: https://github.com/lionsoul2014/ip2region/releases/tag/v1.3-release
[format_png]: https://imgconvert.csdnimg.cn/aHR0cHM6Ly9mYWNlZ2hvc3QuY29tL3VwbG9hZC9mYWNlZ2hvc3QvMTkyNDEwMjMvRXRiMDR6NDEwYTEzOWQzZGM0NDZmNmJiYzk2NDk4MzE2MWYzMjQuanBn?x-oss-process=image/format,png
[format_png 1]: https://imgconvert.csdnimg.cn/aHR0cHM6Ly9mYWNlZ2hvc3QuY29tL3VwbG9hZC9mYWNlZ2hvc3QvMTkyNDEwMjMvbkFhREdVODdmYTU0MzUyNWM0NDNhYWE0N2FlNjRlMmRhYjdhMGMuanBn?x-oss-process=image/format,png
[format_png 2]: https://imgconvert.csdnimg.cn/aHR0cHM6Ly9mYWNlZ2hvc3QuY29tL3VwbG9hZC9mYWNlZ2hvc3QvMTkyNDEwMjMvS1MyYUVyYTdmMjIyODk4OTJkNGVhNDk3NjdiOWE5NGNkZDAxODYuanBn?x-oss-process=image/format,png