diff --git a/blog-visitor/src/main/java/cn/celess/visitor/util/AddressUtil.java b/blog-visitor/src/main/java/cn/celess/visitor/util/AddressUtil.java
index 46a9b5f..a257947 100644
--- a/blog-visitor/src/main/java/cn/celess/visitor/util/AddressUtil.java
+++ b/blog-visitor/src/main/java/cn/celess/visitor/util/AddressUtil.java
@@ -1,10 +1,12 @@
 package cn.celess.visitor.util;
 
+import com.google.common.io.Files;
 import lombok.extern.slf4j.Slf4j;
 import org.lionsoul.ip2region.DataBlock;
 import org.lionsoul.ip2region.DbConfig;
 import org.lionsoul.ip2region.DbSearcher;
 import org.lionsoul.ip2region.Util;
+import org.springframework.core.io.ClassPathResource;
 import org.springframework.util.FileCopyUtils;
 
 import java.io.File;
@@ -24,20 +26,18 @@ public class AddressUtil {
         File file;
         try {
             //db
-            String dbPath = AddressUtil.class.getResource("/ip2region/ip2region.db").getPath();
-            file = new File(dbPath);
-            if (!file.exists()) {
-                String tmpDir = System.getProperties().getProperty("java.io.tmpdir");
-                dbPath = tmpDir + "ip.db";
-                file = new File(dbPath);
-                FileCopyUtils.copy(Objects.requireNonNull(AddressUtil.class.getClassLoader().getResourceAsStream("classpath:ip2region/ip2region.db")), new FileOutputStream(file));
-            }
+            ClassPathResource resource = new ClassPathResource("ip2region/ip2region.db");
+            File tempDir = Files.createTempDir();
+            tempDir.deleteOnExit();
+            file = new File(tempDir, "ip.db");
+            FileCopyUtils.copy(Objects.requireNonNull(resource.getInputStream()), new FileOutputStream(file));
+
             //查询算法
             //B-tree
             int algorithm = DbSearcher.BTREE_ALGORITHM;
             try {
                 DbConfig config = new DbConfig();
-                DbSearcher searcher = new DbSearcher(config, dbPath);
+                DbSearcher searcher = new DbSearcher(config, file.getAbsolutePath());
                 Method method = null;
                 switch (algorithm) {
                     case DbSearcher.BTREE_ALGORITHM: