返回null判定

common/src/main/java/com/pica/cloud/wechat/yunqueyilian/common/aop/PicaLogAspectForXml.java

@@ -3,6 +3,7 @@ package com.pica.cloud.wechat.yunqueyilian.common.aop;
 import com.alibaba.fastjson.JSONObject;
 import com.google.gson.Gson;
 import com.google.gson.reflect.TypeToken;
+import com.pica.cloud.foundation.utils.utils.StringUtil;
 import org.apache.commons.fileupload.servlet.ServletFileUpload;
 import org.apache.commons.io.IOUtils;
 import org.aspectj.lang.ProceedingJoinPoint;
@@ -72,7 +73,9 @@ public class PicaLogAspectForXml {
         Object result = pjp.proceed();
         String res = "";
         if (this.contentType.get().equals("text/xml")) {
-            res = result.toString();
+            if (StringUtil.isNull(result)){
+                res = result.toString();
+            }
         } else if (this.contentType.get().equals("application/json")) {
             Gson gson = new Gson();
             res = gson.toJson(result);