解決tomcat報錯javax.imageio.IIOException: Can't create output stream!
啟動tomcat catalina.out報錯如下，登陸的時候無法顯示驗證碼 2017-06-09 11:23:06,628 DEBUG org.springframework.web.servlet.DispatcherServlet 845 - DispatcherServlet ...
原文：javax.imageio.IIOException: Can't create output stream! (生成驗證碼Servlet)
在 web.xml里面加入 下面的代碼： lt servlet gt lt servlet name gt validatecode lt servlet name gt lt servlet class gt webapp.servlet.ValidateCodeServlet lt servlet class gt lt servlet gt lt servlet mapping gt lt ...
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