perf：优化部分代码

springboot-util/src/main/java/com/tiesheng/util/ServletKit.java

@@ -26,7 +26,8 @@ public class ServletKit extends ServletUtil {
      * @return
      */
     public static String getClientIP() {
-        return getClientIP(getRequest());
+        HttpServletRequest request = getRequest();
+        return getClientIP(request);
     }
 
 

springboot-util/src/main/java/com/tiesheng/util/ip2region/Searcher.java

@@ -179,7 +179,7 @@ public class Searcher {
         this.ioCount = 0;
 
         // locate the segment index block based on the vector index
-        int sPtr = 0, ePtr = 0;
+        int sPtr, ePtr;
         int il0 = (int) ((ip >> 24) & 0xFF);
         int il1 = (int) ((ip >> 16) & 0xFF);
         int idx = il0 * VectorIndexCols * VectorIndexSize + il1 * VectorIndexSize;