diff --git a/weixin4j-server/CHANGE.md b/weixin4j-server/CHANGE.md
index 133502af..b8bd8494 100644
--- a/weixin4j-server/CHANGE.md
+++ b/weixin4j-server/CHANGE.md
@@ -72,4 +72,8 @@
 
   + 新增base64解编码类(来自apache)
   
-  + 删除`BlankMessageHandler`类,新增`SingleContentResponse`类
\ No newline at end of file
+  + 删除`BlankMessageHandler`类,新增`SingleContentResponse`类
+  
+* 2015-08-06
+
+  + 调整`LocationEventMessage`类中的经纬度字段类型为double
\ No newline at end of file
diff --git a/weixin4j-server/src/main/java/com/foxinmy/weixin4j/dispatcher/WeixinMessageDispatcher.java b/weixin4j-server/src/main/java/com/foxinmy/weixin4j/dispatcher/WeixinMessageDispatcher.java
index 9c530628..5aaf66f8 100644
--- a/weixin4j-server/src/main/java/com/foxinmy/weixin4j/dispatcher/WeixinMessageDispatcher.java
+++ b/weixin4j-server/src/main/java/com/foxinmy/weixin4j/dispatcher/WeixinMessageDispatcher.java
@@ -140,6 +140,10 @@ public class WeixinMessageDispatcher {
 		try {
 			response = handlerExecutor.getMessageHandler().doHandle(request,
 					message, cruxMessage.getNodeNames());
+			// fixed..
+			if (response == null) {
+				response = BlankResponse.global;
+			}
 			handlerExecutor.applyPostHandle(request, response, message);
 			context.write(response);
 		} catch (Exception e) {
diff --git a/weixin4j-server/src/main/java/com/foxinmy/weixin4j/message/event/LocationEventMessage.java b/weixin4j-server/src/main/java/com/foxinmy/weixin4j/message/event/LocationEventMessage.java
index 186befa0..bb490c44 100644
--- a/weixin4j-server/src/main/java/com/foxinmy/weixin4j/message/event/LocationEventMessage.java
+++ b/weixin4j-server/src/main/java/com/foxinmy/weixin4j/message/event/LocationEventMessage.java
@@ -27,27 +27,27 @@ public class LocationEventMessage extends EventMessage {
 	 * 地理位置纬度
 	 */
 	@XmlElement(name="Latitude")
-	private String latitude;
+	private double latitude;
 	/**
 	 * 地理位置经度
 	 */
 	@XmlElement(name="Longitude")
-	private String longitude;
+	private double longitude;
 	/**
 	 * 地理位置精度
 	 */
 	@XmlElement(name="Precision")
-	private String precision;
+	private double precision;
 
-	public String getLatitude() {
+	public double getLatitude() {
 		return latitude;
 	}
 
-	public String getLongitude() {
+	public double getLongitude() {
 		return longitude;
 	}
 
-	public String getPrecision() {
+	public double getPrecision() {
 		return precision;
 	}