Merge pull request #2236 from WeBankPartners/dev

Dev

platform-core/src/main/java/com/webank/wecube/platform/core/model/workflow/InputParamAttr.java

@@ -99,7 +99,14 @@ public class InputParamAttr {
             }
             
             if(Constants.DATA_TYPE_STRING.equalsIgnoreCase(type)) {
-                //TODO
+                if(val instanceof String){
+                    return (String)val;
+                }
+                
+                if(val instanceof Integer){
+                    return String.valueOf(val);
+                }
+                
                 return JsonUtils.toJsonString(val);
             }
             
@@ -183,6 +190,10 @@ public class InputParamAttr {
             return null;
         }
         
+        if(v instanceof String){
+            return (String)v;
+        }
+        
         if( (v instanceof PluginParamObject ) || (v instanceof Map) || (v instanceof List)){
             return JsonUtils.toJsonString(v);
         }