jsp :代码
<div class="main">
<h2>添加商品</h2>
<div class="manage">
<form enctype="multipart/form-data" method="post" action="/emw/XFL.do" >
<table class="form">
<tr>
<td class="field">商品名称:</td>
<td><input type="text" id="spmic" class="text" name="productName" onblur="return check()"/></td>
</tr>
<tr>
<td class="field">所属分类:</td>
<td>
<select name="parentId">
<%
List<XLm> li=new XLmBizimpl().getAll();
for(XLm n:li){
%>
<option value="<%=n.getXflid() %>"><%=n.getXflname() %></option>
<%
}
%>
</select>
</td>
</tr>
<tr>
<td class="field">商品图片:</td>
<td><input type="file" id="photo" class="text" name="filepath" /></td>
</tr>
<tr>
<td class="field">商品价格:</td>
<td><input type="text" id="jiage" class="text tiny" name="jiage" onblur="return moing()" /> 元</td>
</tr>
<tr>
<td class="field">库存:</td>
<td><input type="text" id="kucun" class="text tiny" name="kuchun" onblur="return moing1()" /></td>
</tr>
<tr>
<td class="field">条码号:</td>
<td><input type="text" id="tiaoma" class="text" name="tiaoma" onblur="return moing2()"/></td>
</tr>
<tr>
<td></td>
<td><label class="ui-blue"><input type="submit" name="submit" value="添加" /></label></td>
</tr>
</table>
</form>
sevlre:
package com.servlet;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.jsp.JspFactory;
import javax.servlet.jsp.PageContext;
import com.biz.impl.GoodsBizimpl;
import com.biz.impl.XLmBizimpl;
import com.entity.Goods;
import com.entity.XLm;
import com.jspsmart.upload.Files;
import com.jspsmart.upload.SmartUpload;
public class XFL extends HttpServlet{
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
// TODO Auto-generated method stub
super.doGet(req, resp);
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// TODO Auto-generated method stub
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8");
String productName=request.getParameter("productName");
int parentId=Integer.parseInt(request.getParameter("parentId"));
//String filepath=request.getParameter("filepath");
//int jiage=Integer.parseInt( request.getParameter("jiage"));
double jiage=Double.parseDouble(request.getParameter("jiage"));
int kuchun=Integer.parseInt( request.getParameter("kuchun"));
String tiaoma=request.getParameter("tiaoma");
//创建一个上传的组件
SmartUpload su = new SmartUpload();
//初始化SmartUpload对象(重)
su.initialize(JspFactory.getDefaultFactory().getPageContext(this, request, response, null, true, 8*1024, true)); //pageContext上下文 -- application
com.jspsmart.upload.File file = null; //非IO包下的File类
String filepath = null;
com.jspsmart.upload.Request req = null;
//定义允许上传类型
String allowed = "gif,jpg,png,txt";
//定义不许上传类型
String denied = "jsp,asp,php,aspx,html,htm,exe,bat";
//文件上传类型,二选一,一般会选择允许上传类型
//定义上传文件大小
int file_size = 5*1024*1024; //不能超过2M
String exceptionMsg = null; //异常信息对象
//int i = 0;
try {
//定义允许上传文件类型
su.setAllowedFilesList(allowed);
//不允许上传文件类型
su.setDeniedFilesList(denied);
//单个文件最大限制
su.setMaxFileSize(file_size);
//设置上传对象的编码
su.setCharset("utf-8"); //GBK GB2312
//执行上传(重)
su.upload();
//路径
//得到单个上传文件的信息
//file = su.getFiles().getFile(0); //su.getFiles()获得所有文件对象
//su.getFiles()获得所有文件对象
Files f= su.getFiles();
//循环读取文件对象
for(int i=0; i<f.getCount(); i++){
//取文件对象
file=f.getFile(i);
//判断是否有对象
if(!file.isMissing()){
//设置文件在服务器的保存位置
filepath = "upload\\"; //保存到一个upload的文件夹下
//filepath += file.getFileName(); //拼接文件名字
filepath += System.currentTimeMillis()+ file.getFileName().substring( file.getFileName().lastIndexOf("."));
//文件另存为
file.setCharset("utf-8");
//保存(重)
file.saveAs(filepath, SmartUpload.SAVE_VIRTUAL); //上传模式
}
}
} catch (Exception e) {
exceptionMsg = e.getMessage();
e.printStackTrace();
}
response.getWriter().print(filepath);
System.out.println(productName+" "+ parentId+" "+ filepath+" "+ jiage +" "+kuchun +" "+tiaoma);
}
}
错误:SEVERE: Servlet.service() for servlet [XFL] in context with path [/emw] threw exception
java.lang.NumberFormatException: null
at java.lang.Integer.parseInt(Unknown Source)
at java.lang.Integer.parseInt(Unknown Source)
at com.servlet.XFL.doPost(XFL.java:42)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:650)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2517)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2506)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)
问题:获取的值是空值