包括查询和分页功能的小例子，出现空指针异常！我将程序代码打包上传！谁帮我看看！

[fengwa]

Servlet 块的代码 request.getAttribute("phone")得不到值！

if("select".equals(flag)){
String cond="";
Employee employee=new Employee();

if(request.getAttribute("phone")!=null){
String employeeName=Encoding.getEncoding(request.getParameter("employeeName"));
String phone=request.getParameter("phone");
String sex=request.getParameter("sex");
cond=" and employeeName like '%"+employeeName+"%' and phone like '%"+phone+"%' and sex like '%"+sex+"%'";
if(!"".equals(request.getParameter("beginAge"))){
cond+=" and age>="+request.getParameter("geginAge");
}
if(!"".equals(request.getParameter("endAge"))){
cond+=" and age<="+request.getParameter("endAge");
}
employee=new Employee(employeeName,phone,sex,request.getParameter("beginAge"),request.getParameter("endAge"));
}
session.setAttribute("employee", employee);
session.setAttribute("condition", cond);
System.out.println(cond);
// List resultList=EmployeeOperator.findEmployee();
// session.setAttribute("resultList", resultList);
response.sendRedirect("./employee.jsp");
}

[bobdes]

获取提交上来的参数值的方法是:request.getParameter("phone");不是 request.getAttribute("phone")

[pyantking]

<input type="hidden" name="flag" value="add">
你怎么去配件select,程序当然不执行

[huangpeihp]

LZ的代码有很多小错误..自己再自己改改吧..都是粗心的错误
PS:分页代码不太好,建议改用NOT IN算法,不需要传那么多参数

[fengwa]

谢谢各位的指点！小弟是新手 回去再研究 研究！