Stacktrace中的提示

来源：百度知道 编辑：UC知道 时间：2024/05/17 07:02:07
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:92)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:423)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:317)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:295)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:282)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:586)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.JasperException: Unable to compile class for JSP:

An error occurred at line: 30 in the jsp file: /update.jsp
Invali

Integer.parseInt('"+editid+"')
改成Integer.parseInt(editid)
试试看

Integer.parseInt('"+editid+"')
根本不用这么写。
直接跟
String sql="update news set title='"+title+"',content='"+content+"',author='"+author+"' where id="+editid;