Merge branch 'master' of https://gitee.com/y_project/RuoYi-Vue

疯狂的狮子li

2020-07-17 a53a3b3119659d6ec28b458dcefd46f4ec49d55c

 ruoyi/src/main/java/com/ruoyi/common/utils/StringUtils.java

@@ -450,4 +450,10 @@
        }
        return sb.toString();
    }

    @SuppressWarnings("unchecked")
    public static <T> T cast(Object obj)
    {
        return (T) obj;
    }
}