调用java画板画验证码
1，web.xml配置代码
<servlet>
<servlet-name>Code</servlet-name>
<servlet-class>com.util.Code</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Code</servlet-name>
<url-pattern>/Code</url-pattern>
</servlet-mapping>
2，jsp前端代码
3，后端代码
4，效果图