JSP(12) - 商品处理模块

dispose_bef.jsp:

<%@ page contentType="text/html; charset=GBK" %>
<%@ page language="java" import="java.util.*" %>
<%@ page import="java.sql.*" %>
<%@ page import="java.text.SimpleDateFormat" %>
<%@ page import="java.text.DateFormat" %>
<%
response.setHeader("Cache-Control","no-store"); //HTTP 1.1
response.setHeader("Pragma","no-cache"); //HTTP 1.0
response.setDateHeader("Expires", 0); //prevents caching at the proxy server

String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
java.util.Date d=new java.util.Date();
DateFormat dFormat=new SimpleDateFormat("yyyy-MM-dd",Locale.CHINESE);

String sExchId = request.getParameter("exch_id");
String sExchName = "";
String sExchUnit = "";
String sExchQutt = "";

String sCommQutt = request.getParameter("exch_qutt");

boolean rsnull=true;

if(sExchId != null && !sExchId.equals("")){

Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
String url="jdbc:oracle:thin:@TCSCH074.tcsgdccn.com:1521:orcl";
//orcl为你的数据库的SID
String user="store";
String password="store";
Connection conn= DriverManager.getConnection(url,user,password);
String sQuery = null;
Statement stmt = null;
ResultSet rs = null;

try{

sQuery = "select comm_name, comm_unit, comm_qutt from commodity ";
sQuery = sQuery + " where comm_id='"+sExchId+"'";

stmt = conn.createStatement();
rs = stmt.executeQuery(sQuery);

while(rs.next())
{
rsnull=false;
sExchName = rs.getString("comm_name");
sExchUnit = rs.getString("comm_unit");
sExchQutt = rs.getString("comm_qutt");
}

}
catch(Exception e){
System.out.println("检索商品信息时出错！");
e.printStackTrace();
out.println("

检索商品信息时出错！请联系技术支持人员。

dispose_aft.jsp:

<%@ page contentType="text/html; charset=GBK" %>
<%@ page language="java" import="java.util.*" %>
<%@ page import="java.sql.*" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<%
String sExchSeq = request.getParameter("exch_seq");
String sExchCommID = request.getParameter("exch_id");
String sExchCustID = "000001";
String sExchQutt = request.getParameter("exch_qutt");
String sExchDate = request.getParameter("exch_date");

String sCommName = null;
String sCommQutt = null;
String sCommUnit = null;
String sExchMon = null;

if (sExchSeq.equals("")){
throw new Exception("当日进货批次不准为空");
}
if (sExchCommID.equals("")){
throw new Exception("商品编号不准为空！");
}
if (sExchQutt.equals("")){
throw new Exception("进货数量不准为空！");
}

Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
String url="jdbc:oracle:thin:@TCSCH074.tcsgdccn.com:1521:orcl";
//orcl为你的数据库的SID
String user="store";
String password="store";
Connection conn= DriverManager.getConnection(url,user,password);
String sInsert = null;
String sQuery = null;
String sUpdate = null;
Statement stmt = null;
ResultSet rs = null;

try {
sQuery = "select comm_name,comm_qutt,comm_unit from commodity where comm_id='"+sExchCommID+"'";

stmt = conn.createStatement();
rs = stmt.executeQuery(sQuery);
if (rs.next()) {
sCommName = rs.getString("comm_name");
sCommQutt = rs.getString("comm_qutt");
sCommUnit = rs.getString("comm_unit");
}

sExchMon = String.valueOf(Double.parseDouble(sCommUnit)*Double.parseDouble(sExchQutt));

sInsert = "insert into exchange(EXCH_SEQ, EXCH_CST_ID, EXCH_COMM_ID, EXCH_NB, EXCH_MON, EXCH_DATE, EXCH_TYPE) ";
sInsert = sInsert + "values("+sExchSeq+",'"+sExchCustID+"','"+sExchCommID+"',"+sExchQutt+","+sExchMon+",to_date('"+sExchDate+"','yyyy-mm-dd'),'F')";

sUpdate = "update commodity set COMM_QUTT=("+sCommQutt+"-"+sExchQutt+") where comm_id='"+sExchCommID+"'";

//out.println(sQuery+"
");
//out.println(sInsert+"
");
//out.println(sUpdate+"
");

stmt = conn.createStatement();
stmt.addBatch(sInsert);
stmt.addBatch(sUpdate);
stmt.executeBatch();

conn.commit();
out.println("商品处理完成
");
out.println("商品编号:"+sExchCommID+"
");
out.println("商品："+sCommName+"
");
out.println("数量："+sExchQutt+"
");
out.println("单价："+sCommUnit+"
");
out.println("金额："+sExchMon+"
");
}

catch (Exception e){
System.out.println("处理操作失败！");
e.printStackTrace();
out.println("处理操作失败！
");
out.println(e.getMessage());
out.println("");
}

finally {
if (stmt != null) stmt.close();
conn.close();
}
%>