WebRoot/chuku/chuku_add.jsp

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<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %>
<%@ page import="com.util.*"%>
<%
DBO db=new DBO();
request.setCharacterEncoding("gb2312");
ResultSet rs=null;
String sql="";
int row=0;
String qc=(String)request.getParameter("qc");
String sl=(String)request.getParameter("sl");
String rksj=(String)request.getParameter("rksj");
String cz=(String)request.getParameter("cz");
String bz=(String)request.getParameter("bz");
String czr=(String)request.getParameter("czr");
sql="insert into chuku(qc,sl,rksj,cz,bz,czr) values('"+qc+"','"+sl+"','"+rksj+"','"+cz+"','"+bz+"','"+czr+"')";
try{
String sq="select sl from qiche where qcid='"+qc+"'";
rs=db.query(sq);
int qcsl=0;
if(rs.next()){
qcsl=rs.getInt("sl");
}
int qsl=Integer.parseInt(sl);
if(qsl>qcsl){
out.println("<script>");
out.println("alert('出库失败、出库的数量大于库存数量');");
out.println("window.location='chukuadd.jsp'");
out.println("</script>");
return;
}



row=db.executeUpdate(sql);
sql="update  qiche set sl=sl-'"+sl+"' where qcid='"+qc+"'";
db.executeUpdate(sql);
}catch(Exception e){
System.out.println(e.toString());}
if(row==1){
out.println("<script>");
out.println("alert('出库添加成功');");
out.println("window.location='chukuadd.jsp'");
out.println("</script>");
}else{
out.println("<script>");
out.println("alert('出库添加失败');");
out.println("window.location='chukuadd.jsp'");
out.println("</script>");
}
db.close();
%>