add picture

Author: JoyChou93

README.md

@@ -47,6 +47,7 @@ Viarus
 Run -> Edit Configurations -> 添加TomcatServer(Local) -> Server中配置Tomcat路径 -> Deployment中添加Artifact选择java-sec-code:war exploded
 ```
 
+![tomcat](https://github.com/JoyChou93/java-sec-code/raw/master/idea-tomcat.png)
 
 配置完成后，右上角直接点击run，即可运行。
 

src/main/java/org/joychou/controller/XXE.java

@@ -41,7 +41,6 @@ public static String xxe_xmlReader(HttpServletRequest request) {
 
             //fix code end
 
-
             xmlReader.parse( new InputSource(new StringReader(xml_con)) );  // parse xml
             return "ok";
         } catch (Exception e) {