diff --git a/binding/java/ReadMe.md b/binding/java/ReadMe.md
index 8f8e7fc569f06e737e17f6812f20ec14218a8d23..047131c496d93930fca7f46c704b09523375a112 100644
--- a/binding/java/ReadMe.md
+++ b/binding/java/ReadMe.md
@@ -31,8 +31,8 @@ public class SearcherTest {
         }
 
         // 2、查询
+        String ip = "1.2.3.4";
         try {
-            String ip = "1.2.3.4";
             long sTime = System.nanoTime();
             String region = searcher.search(ip);
             long cost = TimeUnit.NANOSECONDS.toMicros((long) (System.nanoTime() - sTime));
@@ -80,8 +80,8 @@ public class SearcherTest {
         }
 
         // 3、查询
+        String ip = "1.2.3.4";
         try {
-            String ip = "1.2.3.4";
             long sTime = System.nanoTime();
             String region = searcher.search(ip);
             long cost = TimeUnit.NANOSECONDS.toMicros((long) (System.nanoTime() - sTime));
@@ -129,8 +129,8 @@ public class SearcherTest {
         }
 
         // 3、查询
+        String ip = "1.2.3.4";
         try {
-            String ip = "1.2.3.4";
             long sTime = System.nanoTime();
             String region = searcher.search(ip);
             long cost = TimeUnit.NANOSECONDS.toMicros((long) (System.nanoTime() - sTime));