refactor: 添加ip2region

src/test/java/cn/celess/blog/util/AddressUtilTest.java

@@ -0,0 +1,15 @@
+package cn.celess.blog.util;
+
+import cn.celess.blog.BaseTest;
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+public class AddressUtilTest extends BaseTest {
+
+    @Test
+    public void getCityInfo() {
+        assertEquals("0|0|0|内网IP|内网IP", AddressUtil.getCityInfo("127.0.0.1"));
+        assertEquals("中国|0|上海|上海市|阿里云", AddressUtil.getCityInfo("106.15.205.190"));
+    }
+}