HTTP状态 500 - 内部服务器错误

类型 异常报告

消息 An exception occurred processing [resources2020/pro/contrast_brand_detail.jsp] at line [48]

描述 服务器遇到一个意外的情况，阻止它完成请求。

例外情况

org.apache.jasper.JasperException: An exception occurred processing [resources2020/pro/contrast_brand_detail.jsp] at line [48]

45:     String realPath = Common.getAbsolutePath(request) ;
46: 	
47: 	for(Map brand : brandList){
48: 		String pronum = CommonString.getFormatPara(brandProMap.get(CommonString.getFormatPara(brand.get("id"))+"_"+catalog));
49: 		String brandName = CommonString.getFormatPara(brand.get("name"));
50: 		String shou = getFirstLetter(brandName);
51: 		brand.put("pronum", pronum);


Stacktrace:
	org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:610)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:499)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:379)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:327)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:764)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
	com.jerehnet.filter.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:36)

根本原因。

java.lang.NullPointerException
	org.apache.jsp.resources2020.pro.contrast_005fbrand_005fdetail_jsp._jspService(contrast_005fbrand_005fdetail_jsp.java:233)
	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:764)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:466)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:379)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:327)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:764)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
	com.jerehnet.filter.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:36)

):注意 主要问题的全部 stack 信息可以在 server logs 里查看

Apache Tomcat/9.0.62