zoukankan html css js c++ java

商品信息录入

1、录入页

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body bgcolor="#00CC33">
<div style=heigh:800px;weight:300px;position:absolute;left:200px;top:100px;background-color:#OF3>
<form action="shangpin" method="post">
<table heigh="800" weight="300"  cellpadding="0" cellspacing="0">
<tr align="center" height="50"><td colspan="2"><font size="6">&nbsp&nbsp&nbsp&nbsp&nbsp请输入商品信息</font></td></tr>
<tr ><td weight="40" align="right">商品编号：</td><td><input type="text" name="spbh" ></td></tr>
<tr><td weight="40" align="right">商品名称：</td><td ><input type="text" name="spm"></td></tr>
<tr><td weight="40" align="right">生产日期：</td><td><input type="text" name="scrq"></td></tr>
<tr><td weight="40" align="right">保质期：</td><td><input type="text" name="bzq"></td></tr>
<tr><td weight="40" align="right">生产厂家：</td><td><input type="text" name="cs"></td></tr>
<tr align="center"><td colspan="2">&nbsp&nbsp&nbsp&nbsp&nbsp<input type="submit" value="提交数据"></td></tr>
</table>
</form>
</div>

</body>
</html>
</body>
</html>

2、更改页

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
    <%@ page import="java.sql.*" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<%try{
//1、连接数据库
Class.forName("oracle.jdbc.driver.OracleDriver");
//（2）得到链接
Connection conn=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:ORCLER","test","asd123");
Statement st=conn.createStatement();

ResultSet  rs=st.executeQuery("select * from shangpin"); 
//3、输出结果集
if(rs!=null)
{
	
  while(rs.next())
  {
	  
	  out.print("商品编号："+rs.getString("spbn")+" ");
	  out.print("商品名称："+rs.getString("spm")+" ");
	  try{
	  out.print("生产日期："+rs.getString("scrq")+" ");
	  }catch(Exception e){}
	  out.print("保质期："+rs.getDate("bzq") +" ");	  
	  out.print(
"生产厂家："+rs.getString("cs")+"<a href='caozuosj?spbh="+rs.getString("spbh")+"'>【删除】</a><a href='Update.jsp?spbh="+rs.getString("spbh")+"'>【修改】</a><br> ");
  }
  rs.close();
}

}
catch(Exception e)
{
	e.printStackTrace();
}
%>

</body>
</html>

3、过滤器

package lianxi77;

import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

/**
 * Servlet Filter implementation class zhuanhuan
 */
public class zhuanhuan implements Filter {

    /**
     * Default constructor. 
     */
    public zhuanhuan() {
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see Filter#destroy()
	 */
	public void destroy() {
		// TODO Auto-generated method stub
	}

	/**
	 * @see Filter#doFilter(ServletRequest, ServletResponse, FilterChain)
	 */
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
		request.setCharacterEncoding("UTF-8");
		response.setContentType("text/html");
		response.setCharacterEncoding("UTF-8");
		chain.doFilter(request, response);
	}

	/**
	 * @see Filter#init(FilterConfig)
	 */
	public void init(FilterConfig fConfig) throws ServletException {
		// TODO Auto-generated method stub
	}

}

4、数据插入

package lianxi77;

import java.io.IOException;
import java.sql.Connection;
import java.sql.Date;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.text.SimpleDateFormat;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class shangpin extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
   
    public shangpin() {
        super();
       
    }

	
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
	//接收数据
		String spbh=request.getParameter("spbh");
		String spm=request.getParameter("spm");
		String scrq=request.getParameter("scrq");
		String bzq=request.getParameter("bzq");
		String cs=request.getParameter("cs");
		
				if(spbh!=null&&spbh.trim().length()!=0)
				{
					try{
						Class.forName("oracle.jdbc.driver.OracleDriver");
						Connection conn=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:ORCLER","test","asd123");
					
						System.out.println("lainjiechenggong");
						PreparedStatement pst=conn.prepareStatement(
								"insert into shangpin(spbh,spm,scrq,bzq,cs)"
						          +" values(?,?,?,?,?)");							
						SimpleDateFormat sd=new SimpleDateFormat("yyyy-MM-dd");
						java.util.Date b=sd.parse(scrq);
						
						Date da=new  Date(b.getTime());
		                 
		                  pst.setString(1, spbh);
		                  pst.setString(2, spm);
		                  pst.setDate(3, da);
		                  pst.setString(4, bzq);
		                  pst.setString(5, cs);
		                  
		                  pst.executeUpdate();
						
		                  pst.close();
		                  conn.close();				
		                  response.getWriter().println("保存成功！");
		      			response.setHeader("refresh","3;URL=caozuo.jsp");
					}
					catch(Exception e)
					{
						e.printStackTrace();
					}
				}
				else
				{
					response.getWriter().println("请正确提交数据！");
					response.setHeader("refresh","3;URL=shuruye.jsp");
				}
				
			}

		
	

	
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		
	}

}

5、数据更改

package lianxi77;

import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;


public class caozuosj extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
   
    public caozuosj() {
        super();
       
    }

	
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		
		String num=request.getParameter("spbm");
		if(num!=null&&num.trim().length()!=0)
		{
			try{
				Class.forName("oracle.jdbc.driver.OracleDriver");

				Connection conn=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:ORCLER","test","asd123");

				PreparedStatement pst=conn.prepareStatement(
						"delete shangpin where"+" spbm=?");
				
                  pst.setString(1, num);
                   pst.executeUpdate();
                  pst.close();
                  conn.close();
                  response.getWriter().println("删除成功！");
      			response.setHeader("refresh","3;URL=caozuo.jsp");
			}
			catch(Exception e)
			{
				e.printStackTrace();
				 response.getWriter().println("删除失败！");
	      			response.setHeader("refresh","3;URL=caozuo.jsp");
			}
		}
		else
		{
			response.getWriter().println("请正确提交数据！");
			response.setHeader("refresh","3;URL=suruye.jsp");
		}
		
	}

	
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
	
		doGet(request, response);
	}

}

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原文地址：https://www.cnblogs.com/jakeasd/p/5652153.html