📄 query.jsp
字号:
<%@page contentType="text/html; charset=gb2312" language="java" import="java.sql.*,java.util.*" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>插入数据</title>
</head>
<body>
<%! String xuehao,name,sex,age,jiguan,department,url,sql; %>
<%! int i;%>
<%! Connection conn;//定义数据库连接对象 %>
<%! ResultSet rs;//定义结果集对象 %>
<%! Statement stmt;//定义SQL语句对象 %>
<%
xuehao=request.getParameter("xuehao").trim();
name=request.getParameter("name").trim();
name=new String(name.getBytes("ISO-8859-1"));//编码转换
sex=request.getParameter("sex").trim();
sex=new String(sex.getBytes("ISO-8859-1"));
age=request.getParameter("age").trim();
i=Integer.parseInt(age);
jiguan=request.getParameter("jiguan").trim();
jiguan=new String(jiguan.getBytes("ISO-8859-1"));
department=request.getParameter("department").trim();
department=new String(department.getBytes("ISO-8859-1"));
if(xuehao.length()!=7){//检查学号的位数
response.sendRedirect("err.jsp");
}
if(name.equals("")){//检查姓名是否为空
response.sendRedirect("err.jsp");
}
try{
Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver").newInstance();
url="jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=university";
conn=DriverManager.getConnection(url,"admin","123456");//建立与数据库的连接
stmt=conn.createStatement();
sql="select * from student where xuehao='"+xuehao+"'";
rs=stmt.executeQuery(sql);
if(rs.getRow()>0){
response.sendRedirect("err.jsp");
}
sql="insert into student(xuehao,name,sex,age,jiguan,dept)";
sql=sql+"values('"+xuehao+"','"+name+"','"+sex+"','"+i+"','"+jiguan+"','"+department+"')";
stmt.executeUpdate(sql);
out.println("<font size=3 color=blue>正在处理信息，请稍后......</font><meta http-equiv='refresh' content='2;url=list.jsp'>");
rs.close();
stmt.close();
conn.close();
}
catch(Exception e){
response.sendRedirect("err.jsp");
}
%>
</body>
</html>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -