Merge remote-tracking branch 'origin/dev' into dev

src/main/java/com/xjrsoft/module/generator/entity/TableConfig.java

@@ -52,4 +52,10 @@ public class TableConfig {
      */
     @Length(max = 30, message = "关联表对应字段长度不能超过30！")
     private String relationTableField;
+
+    /**
+     * 是否允许为空
+     */
+    @NotNull(message = "是否允许为空！")
+    private boolean isNullable;
 }