Question

为什么我的servlet接受select的值始终为空

Answer 1

<td width=83是否通过</td <td width=59提交</td <td width=101备注</td</tr<% ArrayList checkinfo=(ArrayList)request.getAttribute(checkinfo); if(checkinfo!=null){for(int i=0;i<checkinfo.size();i++){BusinessBean info=(BusinessBean)checkinfo.get(i);%<tr bgcolor=#FFFFFF<td<%=info.getVPhoneNum() %</td <td<%=info.getVName()%</td <td<a href=listening.jsp?url=<%=info.getVRecordUrl()%查询录音</a</td <td<select name=checkpass<option value=xuanze 请选择</option<option value=yes是</option<option value=no否</option</select</td <td<input type=button class=btn1_mouseout onmouseover=this.className='btn1_mouseover'onmouseout=this.className='btn1_mouseout' value=提交</td <td<%=info.getVRemark() %</td</tr<%}}%</table</form上面是JSP页面 下面是servlet String phone=request.getParameter(phone); String pass=request.getParameter(checkpass); System.out.println(phone); System.out.println(pass); LoginService submitcheck=new LoginServiceImpl(); if(pass==xuanze){out.println(<script language=\javascript\); out.println(alert(\请选择是否通过稽查！\));