我发布到远程服务器上的一个JBOSS服务器中,这个服务器也是LINUX的昨天发布的应用,昨天还可以使用的今天的验证码就出了问题(昨天还可以使用)我的验证码代码如下        // 设置页面不缓存

        HttpServletResponse res = ServletActionContext.getResponse();
        HttpSession session = ServletActionContext.getRequest().getSession();

        res.setHeader("Pragma", "No-cache");
        res.setHeader("Cache-Control", "no-cache");
        res.setDateHeader("Expires", 0);
        
        // 在内存中创建图象
        int width = 65, height = 25;
        
        BufferedImage image = new BufferedImage(width, height,
        
                  BufferedImage.TYPE_INT_RGB);        // 获取图形上下文
        Graphics g = image.getGraphics();        // 生成随机类
        Random random = new Random();        // 设定背景色
   //     g.setColor(getRandColor(200, 250));
        
        g.fillRect(0, 0, width, height);        // 设定字体
        g.setFont(new Font("Times New Roman", Font.PLAIN, 23));        // 随机产生155条干扰线,使图象中的认证码不易被其它程序探测到
     //   g.setColor(getRandColor(160, 200));
        
        for (int i = 0; i < 155; i++) {
        
              int x = random.nextInt(width);
              
              int y = random.nextInt(height);
              
              int xl = random.nextInt(12);
              
              int yl = random.nextInt(12);
              
              g.drawLine(x, y, x + xl, y + yl);
        }        // 取随机产生的认证码(4位数字)
        String[] code = { "a", "b", "c", "d", "e", "f", "g", "h", "i", "j",
                  "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v",
                  "w", "x", "y", "z", "0", "1", "2", "3", "4", "5", "6", "7",
                  "8", "9" };
        // 数组长度
        int length = code.length;        String sRand = "";
        
        for (int i = 0; i < 4; i++) {           int start = random.nextInt(length);
              
              String rand = code[start];
              
              sRand += rand;
              
              // 将认证码显示到图象中
              g.setColor(new Color(20 + random.nextInt(110), 20 + random
                      .nextInt(110), 20 + random.nextInt(110)));// 调用函数出来的颜色相同,可能是因为种子太接近,所以只能直接生成
              
              g.drawString(rand, 13 * i + 6, 16);
        }        // 将认证码存入SESSION
        session.setAttribute("rand", sRand);        // 图象生效
        g.dispose();      
        // 输出图象到页面
        try {
         ByteArrayOutputStream outss=new ByteArrayOutputStream();
ImageIO.write(image, "jpeg",outss );

if(null==outss){
ImageIO.write(image, "jpeg",outss );
} this.setInputStream(new ByteArrayInputStream(outss.toByteArray()));
outss.close();
} catch (IOException e) {
e.printStackTrace();
}
return SUCCESS;
具体的错误是 在登录界面的密码框是红叉 ,使用上面图片生成的ACTION报的错误是
HTTP Status 500 - --------------------------------------------------------------------------------type Exception reportmessage description The server encountered an internal error () that prevented it from fulfilling this request.exception javax.servlet.ServletException: java.lang.IllegalArgumentException: Can not find a java.io.InputStream with the name [inputStream] in the invocation stack. Check the <param name="inputName"> tag specified for this action.
org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:515)
org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:419)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
root cause java.lang.IllegalArgumentException: Can not find a java.io.InputStream with the name [inputStream] in the invocation stack. Check the <param name="inputName"> tag specified for this action.
org.apache.struts2.dispatcher.StreamResult.doExecute(StreamResult.java:189)
org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:178)
com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:348)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:253)
com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:221)
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:150)
org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:48)
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:123)
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:186)
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:105)
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
note The full stack trace of the root cause is available in the JBossWeb/2.0.1.GA logs.有知道的大大解答下么,最奇怪的是昨天还好用的,今天就出问题了,是网上说的JBOSS发布的验证码一定要在run.sh中加
东西么?另求该版本的JBOSS下载链接

解决方案 »

  1.   

    是不是你的inputstream有问题,我是指这个流是不是导错了?
      

  2.   

    JBOSS默认不能支持显示图像,在bin目录下的run.conf中找到类似的以下行:
    if [ "x$JAVA_OPTS" = "x" ]; then
       JAVA_OPTS="-Xms128m -Xmx512m -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000"
    fi
    在末尾加上-Djava.awt.headless=true即:
    if [ "x$JAVA_OPTS" = "x" ]; then
       JAVA_OPTS="-Xms128m -Xmx512m -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000 -Djava.awt.headless=true"
    fi