优化AddressUtil

febs-server/febs-server-system/src/main/java/cc/mrbird/febs/server/system/utils/AddressUtil.java

@@ -1,6 +1,7 @@
 package cc.mrbird.febs.server.system.utils;
 
 import org.apache.commons.io.FileUtils;
+import org.apache.commons.lang3.StringUtils;
 import org.lionsoul.ip2region.DataBlock;
 import org.lionsoul.ip2region.DbConfig;
 import org.lionsoul.ip2region.DbSearcher;
@@ -10,8 +11,8 @@ import org.slf4j.LoggerFactory;
 
 import java.io.File;
 import java.io.IOException;
+import java.io.InputStream;
 import java.lang.reflect.Method;
-import java.util.Objects;
 
 /**
  * 根据 IP获取地址
@@ -31,7 +32,10 @@ public class AddressUtil {
                 String tmpDir = System.getProperties().getProperty("java.io.tmpdir");
                 dbPath = tmpDir + "ip.db";
                 file = new File(dbPath);
-                FileUtils.copyInputStreamToFile(Objects.requireNonNull(AddressUtil.class.getClassLoader().getResourceAsStream("classpath:ip2region/ip2region.db")), file);
+                InputStream resourceAsStream = AddressUtil.class.getClassLoader().getResourceAsStream("classpath:ip2region/ip2region.db");
+                if (resourceAsStream != null) {
+                    FileUtils.copyInputStreamToFile(resourceAsStream, file);
+                }
             }
             DbConfig config = new DbConfig();
             searcher = new DbSearcher(config, file.getPath());
@@ -42,7 +46,8 @@ public class AddressUtil {
             DataBlock dataBlock = (DataBlock) method.invoke(searcher, ip);
             return dataBlock.getRegion();
         } catch (Exception e) {
-            log.error("获取地址信息异常", e);
+            log.error("获取地址信息异常，{}", e.getMessage());
+            return StringUtils.EMPTY;
         } finally {
             if (searcher != null) {
                 try {
@@ -52,7 +57,5 @@ public class AddressUtil {
                 }
             }
         }
-        return "";
     }
-
 }