int count=p_image.indexOf("images");
String p_image_temp=p_image.substring(count,p_image.length());
int count=p_image.indexOf("images");
String p_image_temp=p_image.substring(count+1,p_image.length());
<%@ page contentType="text/html;charset=UTF-8" %>
<%@ page import="org.fjzzy.eBuy.classes.ConnDB" %>
<%@ page import="org.fjzzy.eBuy.classes.Convert" %>
<%@ page import="java.sql.*" %>
<%@ page import="java.util.Date" %>
<%
request.setCharacterEncoding("UTF-8");
String admin_name=(String) session.getAttribute("admin_name");
if(admin_name==null || admin_name=="")
{
out.println("<script language='javascript'>alert('请先登录!');window.location.href='index.jsp';</script>");
}
else
{
Date date=new Date();
String p_id=(String) request.getParameter("p_id");
String p_type=(String) request.getParameter("p_type");
String p_name=(String) request.getParameter("p_name");
String p_price=(String) request.getParameter("p_price");
String p_quantity=(String) request.getParameter("p_quantity");
String p_image=(String) request.getParameter("p_image");
p_image=p_image.replaceAll("\\\\","/");
int count=p_image.indexOf("images");
String p_image_temp=p_image.substring(count,p_image.length());
String p_description=(String) request.getParameter("p_description");
String p_time=String.valueOf(date.getMonth()+1)+"-"+date.getDate()+"-20"+String.valueOf(date.getYear()).substring(1);
ConnDB conn=new ConnDB();
Convert convert=new Convert();
p_type=convert.method(p_type);
p_id=convert.method(p_id);
p_name=convert.method(p_name);
p_image_temp=convert.method(p_image_temp);
p_description=convert.method(p_description);
String sql="update product set p_type='"+p_type+"',p_name='"+p_name+"',p_price='"+Float.parseFloat(p_price)+"',p_quantity='"+Integer.parseInt(p_quantity)+"',p_image='"+p_image_temp+"',p_description='"+p_description+"',p_time='"+p_time+"' where p_id='"+p_id+"'";
int temp=conn.doUpdate(sql);
if(temp!=0)
{
out.println( "<HTML><HEAD><META http-equiv='refresh' content='2; URL=product_all.jsp' target=Main></HEAD><BODY bgcolor='#FFFFFF'></body></html>");
%>
<jsp:include page="update_ok.html" flush="true"/>
<%
}
else
{
out.println( "<HTML><HEAD><META http-equiv='refresh' content='2; URL=product_all.jsp' target=Main></HEAD><BODY bgcolor='#FFFFFF'><center><font size=4pt color='red'>" + "商品修改失败!" + "</font></center></body></html>");
}
}
%>
2016-6-26 15:19:01 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet jsp threw exception
java.lang.StringIndexOutOfBoundsException: String index out of range: -1
at java.lang.String.substring(Unknown Source)
at org.apache.jsp.admin.product_005fupdate_005fok_jsp._jspService(product_005fupdate_005fok_jsp.java:80)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:377)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:861)
at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:579)
at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1584)
at java.lang.Thread.run(Unknown Source)
<%@ page contentType="text/html;charset=UTF-8" %>
<%@ page import="org.fjzzy.eBuy.classes.ConnDB" %>
<%@ page import="java.sql.*" %>
<%
request.setCharacterEncoding("UTF-8");
String admin_name=(String) session.getAttribute("admin_name");
if(admin_name==null || admin_name=="")
{
out.println("<script language='javascript'>alert('请先登录!');window.location.href='index.jsp';</script>");
}
String p_id=(String) request.getParameter("p_id");
String p_type="",p_name="",p_price="",p_quantity="",p_image="",p_description="";
ConnDB conn=new ConnDB();
String sql="select * from product where p_id='"+p_id+"'";
ResultSet rs = conn.doQuery(sql);
if(rs.next())
{
p_type=rs.getString(1);
p_name=rs.getString(3);
p_price=rs.getString(4);
p_quantity=rs.getString(5);
p_image=rs.getString(6);
p_description=rs.getString(7);
}
rs.close();
%>
<style type="text/css">
<!--
.STYLE1 {
font-size: 12px;
}
.STYLE2 {
font-size: 14px;
}
-->
</style>
<script>
<!--
function check_product(form)
{
if(form.p_type.value=="")
{
alert("请选择商品类型");
form.p_type.focus();
return false;
}
if(form.p_id.value=="")
{
alert("请输入商品的ID");
form.p_id.focus();
return false;
}
if(form.p_name.value=="")
{
alert("请输入商品的名称");
form.p_name.focus();
return false;
}
if(form.p_price.value=="")
{
alert("请输入商品的价格");
form.p_price.focus();
return false;
}
if(form.p_quantity.value=="")
{
alert("请输入商品的数量");
form.p_quantity.focus();
return false;
}
if(form.p_image.value=="")
{
alert("请添加商品的图片");
form.p_image.focus();
return false;
}
}
-->
</script>
<center>
<form action="product_update_ok.jsp?p_id=<%= p_id %>" method="post" onSubmit="return check_product(this);">
<table width="520" border="1" bordercolor="#99CCFF" cellpadding="0" cellspacing="0" style="border-collapse:collapse">
<!--DWLayoutTable-->
<tr>
<td height="30" colspan="2" align="center" bgcolor="#FFFFFF"><span class="STYLE2">查看/修改商品信息</span></td>
</tr>
<tr>
<td width="146" height=40 align="center"><span class="STYLE1">商品类型</span>：</td>
<td width="348" align="left">
<select name="p_type">
<option value="<%= p_type %>"><%= p_type %></option>
<%
String str_sql="select t_type from main_type where t_type != '"+p_type+"'";
rs=conn.doQuery(str_sql);
while(rs.next())
{
%>
<option value="<%= rs.getString("t_type") %>"><%= rs.getString("t_type") %></option>
<%}%>
</select></td>
</tr>
<tr>
<td height="30" align="center"><span class="STYLE1">商品ID</span>：</td>
<td height="30" align="left">
<input type="text" name="p_id" size="15" value="<%= p_id %>"/></td>
</tr>
<tr>
<td height="30" align="center"><span class="STYLE1">商品名称</span>：</td>
<td height="30" align="left">
<input type="text" name="p_name" size="30" value="<%= p_name %>" /></td>
</tr>
<tr>
<td height="30" align="center"><span class="STYLE1">商品价格( RMB )</span>：</td>
<td height="30" align="left">
<input type="text" name="p_price" size="10" value="<%= p_price %>" /></td>
</tr>
<tr>
<td height="30" align="center"><span class="STYLE1">商品数量</span>：</td>
<td height="30" align="left">
<input type="text" name="p_quantity" size="10" value="<%= p_quantity %>" /></td>
</tr>
<tr>
<td height="30" align="center"><span class="STYLE1">商品图片</span>：</td>
<td height="30" align="left">
<input type="file" name="p_image" size="30" value="<%= p_image %>"/></td>
</tr>
<tr>z
<td height="94" align="center"><span class="STYLE1">商品描述</span>：</td>
<td height="94" align="left">
<textarea name="p_description" cols="42" rows="5"><%= p_description %></textarea></td>
</tr>
<tr>
<td height="40" colspan="2" align="center"><input name="submit" type="submit" class="STYLE1" value=" 修改 " />
<input type="button" class="STYLE1" value=" 返回 " onclick="history.go(-1);"/></td>
</tr>
</table>
</form>
</center>
