往数据库插入记录的问题

代码
我的代码
<%  
    String wuliao=request.getParameter("textfield");
String pinming=request.getParameter("textfield2");
String shulian=request.getParameter("textfield3");
String danjia=request.getParameter("textfield5");
String jine=request.getParameter("textfield6");
String jiaoqi=request.getParameter("textfield4");
String gongyinshang=request.getParameter("textfield7");
String sql="insert into wuliao(wuliao，pinming，shulian，danjia，jine，jiaoqi，gongyinshang) values("+wuliao+",'"+pinming+",'"+shulian+",'"+danjia+",'"+jine+",'"+jiaoqi+",'"+gongyinshang+"')";
int result=0;
result=connBean.executeUpdate(sql);
if (result!=0){
out.println("<script language='javascript'>alert('写入成功！');window.location.href='index.jsp';</script>");
}else{
out.println("<script language='javascript'>alert('写入失败！');window.location.href='Topic_add.jsp';</script>");
out.print(wuliao+pinming+shulian+danjia+jine+jiaoqi+gongyinshang);
 %>  
知道这是什么错误吗 我往数据库插入记录发生的
org.apache.jasper.JasperException: Unable to compile class for JSP: 
Stacktrace:
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:85)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:415)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:308)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:286)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:273)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:566)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:308)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)