1.org.apache.jasper.JasperException: An exception occurred processing JSP page /post.jsp at line 32
2.No report compiler set for language : null
3.JSP 报错为org.apache.jasper.JasperException: /t3.jsp(4,源码4) Invalid directive 可能是哪方面的原因啊
4.jasperreport applet打印预览在jboss上显示不全(本地用jetty没有问题),可能是什么原因呢?如何解决
org.apache.jasper.JasperException: An exception occurred processing JSP page /post.jsp at line 32
stmt.executeUpdate("update article set rootid = " + key + "where id =" + key);
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No report compiler set for language : null
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JSP 报错为org.apache.jasper.JasperException: /t3.jsp(4,4) Invalid directive 可能是哪方面的原因啊
Invalid directive
看看有没有类似以下的源码,有的源码话把能去的空格都去掉,将空格去掉!将中间不应该要的源码牛魔管家源码空格都去掉!
<%@ page import="java.lang.*, java.io.*, java.sql.*, java.util.*" contentType="text/html;charset=gb" %>
改成<%@page import="java.lang.*, java.io.*, java.sql.*, java.util.*" contentType="text/html;charset=gb"%>
jasperreport applet打印预览在jboss上显示不全(本地用jetty没有问题),可能是什么原因呢?如何解决
产生原因:在生成HTML页面时JRHtmlExporterParameter.IMAGES_URI参数设置不正确,主要是源码的路径问题。由JasperReport生成Html时,源码旧言发卡源码那些红叉叉是源码hadoop 源码 视频一个名称为px像素的,是源码内置在jasperreports包中的,在IE显示时以的源码形式显示 解决办法:根据JasperReport的源代码显示,我们只需要以下两个步骤就能解决了1、源码在web.xml中添加如下配置: <servlet> <servlet-name>ImageServlet</servlet-name> <servlet-class>net.sf.jasperreports.j2ee.servlets.ImageServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>ImageServlet</servlet-name> <url-pattern>/servlets/image</url-pattern> </servlet-mapping> 2、源码在调用程序中增加如下代码: exporter.setParameter(JRHtmlExporterParameter.IMAGES_URI,源码 "../servlets/image?image="); 好了,经过上面两个步骤。源码重启服务,源码图像处理源码、刷新页面立马就正常了 完整代码: /** * 导出html */ private static void exportHtml(JasperPrint jasperPrint,源码String defaultFilename, HttpServletRequest request, HttpServletResponse response) throws IOException, JRException { response.setContentType("text/html;charset=UTF-8"); JRHtmlExporter exporter = new JRHtmlExporter(); PrintWriter out = response.getWriter(); try { request.getSession().setAttribute(ImageServlet.DEFAULT_JASPER_PRINT_SESSION_ATTRIBUTE, jasperPrint); exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint); exporter.setParameter(JRExporterParameter.OUTPUT_WRITER, out); exporter.setParameter(JRHtmlExporterParameter.IS_USING_IMAGES_TO_ALIGN, Boolean.FALSE); exporter.setParameter(JRExporterParameter.CHARACTER_ENCODING, "UTF-8"); exporter.setParameter(JRHtmlExporterParameter.IS_REMOVE_EMPTY_SPACE_BETWEEN_ROWS,Boolean.FALSE); exporter.setParameter(JRHtmlExporterParameter.IMAGES_URI, "../servlets/image?image="); exporter.exportReport(); } catch (JRException e) { logger.debug(" 生成html文件失败 .... ...."); } } 上面的代码就能很完美的生成html了,页面没有红叉叉,源码画画猜猜+源码chat图也能正常显示了
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