你先把下划线去掉，有问题在论坛提问就可以了

回复第11楼  还是不对啊，同样的错误
严重: Servlet.service() for servlet [Jcaptcha] in context with path [] threw exception [Servlet execution threw an exception] with root cause
java.lang.IllegalArgumentException: Can't load standard profile: GRAY.pf
at java.awt.color.ICC_Profile$2.run(ICC_Profile.java:894)
at java.security.AccessController.doPrivileged(Native Method)
at java.awt.color.ICC_Profile.getStandardProfile(ICC_Profile.java:887)
at java.awt.color.ICC_Profile.getInstance(ICC_Profile.java:858)
at java.awt.color.ColorSpace.getInstance(ColorSpace.java:315)
at javax.imageio.ImageTypeSpecifier$Grayscale.<init>(ImageTypeSpecifier.java:700)
at javax.imageio.ImageTypeSpecifier.createGrayscale(ImageTypeSpecifier.java:781)
at javax.imageio.ImageTypeSpecifier.<clinit>(ImageTypeSpecifier.java:140)
at javax.imageio.ImageIO.write(ImageIO.java:1467)
at javax.imageio.ImageIO.write(ImageIO.java:1565)
at com.jeecms.common.captcha.JcaptchaServlet.doGet(JcaptchaServlet.java:57)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:405)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:279)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:300)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:619)
2014-3-20 15:54:42 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet [Jcaptcha] in context with path [] threw exception [Servlet execution threw an exception] with root cause
java.lang.NoClassDefFoundError: Could not initialize class javax.imageio.ImageTypeSpecifier
at javax.imageio.ImageIO.write(ImageIO.java:1467)
at javax.imageio.ImageIO.write(ImageIO.java:1565)
at com.jeecms.common.captcha.JcaptchaServlet.doGet(JcaptchaServlet.java:57)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:405)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:279)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:300)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:619)

 GRAY.pf 你这个是什么文件？

回复第13楼   我不知道啊，就报这个错误，后面的错事图片加载不到路径

你现在项目名称怎么命名的？

回复第15楼   MedicinePro

Can't load standard profile: GRAY.pf 这个是什么文件？系统默认没有这个的呀？

回复第17楼   不是吧，我是按照官网的步骤搭建的啊，其他的什么都没有动啊，直接发布起来的， 那你给我一份搭建好的吧，我试试看

论坛下载的源码是没有问题，你先看看你部署后类下有没有报错的，你也可以用安装 版本看下验证码能不能加载到，你那也有可能是你之前部署环境下的缓存还没清除，你之前项目名是有特殊字符的下划线导致加载不到你路径

回复第19楼 肯定不是之前缓存的问题，我都把缓存清空了啊，