修改参数转换json字符串拼接问题

jeepay-core/src/main/java/com/jeequan/jeepay/core/beans/RequestKitBean.java

@@ -112,8 +112,8 @@ public class RequestKitBean {
                 value = "";
             }else if(valueObj instanceof String[]){
                 String[] values = (String[])valueObj;
-                for(int i=0; i<values.length; i++){
-                    value += values[i] + ",";
+                for(int i=0;i<values.length;i++){
+                    value = values[i] + ",";
                 }
                 value = value.substring(0, value.length()-1);
             }else{