index8.jsp

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JSP
65
字号
<%@ page contentType="text/html;charset=GB2312"%>
<%@ page import="java.sql.*"%>
<%@ page import="java.lang.Exception.*"%>
<%
//数据库连接
String url="jdbc:odbc:xuesheng";
  Class.forName("sun.jdbc.odbc.JdbcOdbcDriver").newInstance();
  Connection con=DriverManager.getConnection(url);
  Statement stmt=con.createStatement();

  //ResultSet result=stmt.executeQuery("update xinxi_book set");
  //ResultSetMetaData resultmd=result.getMetaData();
%>
<html>
<body>


<% 
if(request.getParameter("condition1")!=null)
{
    String condition1=request.getParameter("condition1");
    String condition2=request.getParameter("condition2"); 
    String condition3=request.getParameter("condition3");

condition2 = new String(condition2.getBytes("ISO-8859-1"), "GBK");  

//condition3 = new String(condition3.getBytes("ISO-8859-1"), "GBK");

String sql= "delete  from xinxi_book where book_id =" + "'"+condition1+"'";
//ResultSet result1
//stmt.executeQuery(sql);


//out.println(sql);

out.println("<br>");

out.println("<p>");
out.println("<center>");
int n=stmt.executeUpdate(sql);
if(n>0)
{
	out.println("成功删除图书");
out.println("<p>");
out.println("书号:"+condition1+"<p>");
out.println("书名:"+condition2+"<p>");
out.println("数量:"+condition3+"<p>");
}
else
{
	out.println("操作未完成");
}




stmt.close();
con.close();
}
%>
<form method="POST" action="index7.jsp">
<center>
<input type="submit" value="返回">
</body>
</html>

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