diff --git a/src/main/java/org/wltea/analyzer/help/Sleep.java b/src/main/java/org/wltea/analyzer/help/Sleep.java
index 703b816..484a8ef 100644
--- a/src/main/java/org/wltea/analyzer/help/Sleep.java
+++ b/src/main/java/org/wltea/analyzer/help/Sleep.java
@@ -1,6 +1,12 @@
 package org.wltea.analyzer.help;
 
+import org.elasticsearch.common.logging.ESLogger;
+import org.elasticsearch.common.logging.Loggers;
+
 public class Sleep {
+
+    public static ESLogger logger= Loggers.getLogger("ik-analyzer");
+    
 	public enum Type{MSEC,SEC,MIN,HOUR};
 	public static void sleep(Type type,int num){
 		try {
@@ -18,7 +24,7 @@ public class Sleep {
 					Thread.sleep(num*60*60*1000);
 					return;
 				default:
-					System.err.println("输入类型错误，应为MSEC,SEC,MIN,HOUR之一");
+                    logger.error("输入类型错误，应为MSEC,SEC,MIN,HOUR之一");
 					return;
 			}
 		} catch (InterruptedException e) {
diff --git a/src/main/java/org/wltea/analyzer/query/IKQueryExpressionParser.java b/src/main/java/org/wltea/analyzer/query/IKQueryExpressionParser.java
index 679ec12..47f3187 100644
--- a/src/main/java/org/wltea/analyzer/query/IKQueryExpressionParser.java
+++ b/src/main/java/org/wltea/analyzer/query/IKQueryExpressionParser.java
@@ -28,6 +28,8 @@ import org.apache.lucene.index.Term;
 import org.apache.lucene.search.*;
 import org.apache.lucene.search.BooleanClause.Occur;
 import org.apache.lucene.util.BytesRef;
+import org.elasticsearch.common.logging.ESLogger;
+import org.elasticsearch.common.logging.Loggers;
 
 import java.util.ArrayList;
 import java.util.LinkedList;
@@ -44,7 +46,9 @@ import java.util.Stack;
  *
  */
 public class IKQueryExpressionParser {
-	
+
+    public static ESLogger logger= Loggers.getLogger("ik-analyzer");
+    
 	//public static final String LUCENE_SPECIAL_CHAR = "&&||-()':={}[],";
 	
 	private List<Element> elements = new ArrayList<Element>();
@@ -705,7 +709,7 @@ public class IKQueryExpressionParser {
 		//String ikQueryExp = "newsTitle:'的两款《魔兽世界》插件Bigfoot和月光宝盒'";
 		String ikQueryExp = "(id='ABcdRf' && date:{'20010101','20110101'} && keyword:'魔兽中国') || (content:'KSHT-KSH-A001-18'  || ulr='www.ik.com') - name:'林良益'";
 		Query result = parser.parseExp(ikQueryExp , true);
-		System.out.println(result);
+        logger.info(result.toString());
 
 	}	
 	
diff --git a/src/main/java/org/wltea/analyzer/sample/IKAnalzyerDemo.java b/src/main/java/org/wltea/analyzer/sample/IKAnalzyerDemo.java
index ea26e3c..72d9df4 100644
--- a/src/main/java/org/wltea/analyzer/sample/IKAnalzyerDemo.java
+++ b/src/main/java/org/wltea/analyzer/sample/IKAnalzyerDemo.java
@@ -33,6 +33,8 @@ import org.apache.lucene.analysis.TokenStream;
 import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
 import org.apache.lucene.analysis.tokenattributes.OffsetAttribute;
 import org.apache.lucene.analysis.tokenattributes.TypeAttribute;
+import org.elasticsearch.common.logging.ESLogger;
+import org.elasticsearch.common.logging.Loggers;
 import org.wltea.analyzer.lucene.IKAnalyzer;
 
 /**
@@ -41,7 +43,9 @@ import org.wltea.analyzer.lucene.IKAnalyzer;
  *
  */
 public class IKAnalzyerDemo {
-	
+
+    public static ESLogger logger= Loggers.getLogger("ik-analyzer");
+    
 	public static void main(String[] args){
 		//构建IK分词器，使用smart分词模式
 		Analyzer analyzer = new IKAnalyzer(true);
@@ -63,7 +67,7 @@ public class IKAnalzyerDemo {
 			ts.reset(); 
 			//迭代获取分词结果
 			while (ts.incrementToken()) {
-			  System.out.println(offset.startOffset() + " - " + offset.endOffset() + " : " + term.toString() + " | " + type.type());
+			  logger.info(offset.startOffset() + " - " + offset.endOffset() + " : " + term.toString() + " | " + type.type());
 			}
 			//关闭TokenStream（关闭StringReader）
 			ts.end();   // Perform end-of-stream operations, e.g. set the final offset.
diff --git a/src/main/java/org/wltea/analyzer/sample/LuceneIndexAndSearchDemo.java b/src/main/java/org/wltea/analyzer/sample/LuceneIndexAndSearchDemo.java
index 93f32c9..cf863f5 100644
--- a/src/main/java/org/wltea/analyzer/sample/LuceneIndexAndSearchDemo.java
+++ b/src/main/java/org/wltea/analyzer/sample/LuceneIndexAndSearchDemo.java
@@ -48,6 +48,8 @@ import org.apache.lucene.store.Directory;
 import org.apache.lucene.store.LockObtainFailedException;
 import org.apache.lucene.store.RAMDirectory;
 import org.apache.lucene.util.Version;
+import org.elasticsearch.common.logging.ESLogger;
+import org.elasticsearch.common.logging.Loggers;
 import org.wltea.analyzer.lucene.IKAnalyzer;
 
 
@@ -61,7 +63,8 @@ import org.wltea.analyzer.lucene.IKAnalyzer;
  *
  */
 public class LuceneIndexAndSearchDemo {
-	
+
+    public static ESLogger logger= Loggers.getLogger("ik-analyzer");
 	
 	/**
 	 * 模拟：
@@ -107,16 +110,16 @@ public class LuceneIndexAndSearchDemo {
 			QueryParser qp = new QueryParser(fieldName,  analyzer);
 			qp.setDefaultOperator(QueryParser.AND_OPERATOR);
 			Query query = qp.parse(keyword);
-			System.out.println("Query = " + query);
+			logger.info("Query = " + query);
 			
 			//搜索相似度最高的5条记录
 			TopDocs topDocs = isearcher.search(query , 5);
-			System.out.println("命中：" + topDocs.totalHits);
+            logger.info("命中：" + topDocs.totalHits);
 			//输出结果
 			ScoreDoc[] scoreDocs = topDocs.scoreDocs;
 			for (int i = 0; i < topDocs.totalHits; i++){
 				Document targetDoc = isearcher.doc(scoreDocs[i].doc);
-				System.out.println("内容：" + targetDoc.toString());
+                logger.info("内容：" + targetDoc.toString());
 			}			
 			
 		} catch (CorruptIndexException e) {