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@@ -1,80 +0,0 @@
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-package org.lsy.servlet;
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-
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-import java.io.IOException;
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-import java.io.PrintWriter;
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-import java.sql.Connection;
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-import java.sql.DriverManager;
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-import java.sql.Statement;
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-
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-import javax.servlet.ServletException;
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-import javax.servlet.http.HttpServlet;
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-import javax.servlet.http.HttpServletRequest;
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-import javax.servlet.http.HttpServletResponse;
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-
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-public class Update extends HttpServlet
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-{
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- // 驱动程序就是之前在classpath中配置的jdbc的驱动程序的jar包中
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-
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-
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-
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- public static final String DBURL = "jdbc:mysql://localhost:3306/kui";
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- // 连接数据库的用户名
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- public static final String DBUSER = "root";
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- // 连接数据库的密码
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- public static final String DBPASS = "001011";
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-
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-
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- public void doGet(HttpServletRequest request, HttpServletResponse response)
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- throws ServletException, IOException
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- {
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- try
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-
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- {
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- request.setCharacterEncoding("UTF-8");
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- response.setCharacterEncoding("UTF-8");
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- response.setContentType("text/html;UTF-8");
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- PrintWriter out = response.getWriter();
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- Connection conn = null; // 表示数据库的连接的对象
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- Statement stmt = null; // 表示数据库的更新操作
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- //获取表单提交的参数
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- String name=request.getParameter("name");
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- String grent=request.getParameter("grent");
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- String result=request.getParameter("result");
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-
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- //更新SQL
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- String sqlString="update student set name='"+name+"' ," +
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- "calssGrent='"+grent+"',result='"+result+"' where name='"+name+"' ";
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- // 1、使用Class类加载驱动程序
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- Class.forName("com.mysql.jdbc.Driver");
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- // 2、连接数据库
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- conn = DriverManager.getConnection(DBURL, DBUSER, DBPASS);
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- // 3、Statement接口需要通过Connection接口进行实例化操作
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- stmt = conn.createStatement();
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- int pd=stmt.executeUpdate(sqlString);
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- if(pd!=0)
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- {
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- out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
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- out.println("<HTML>");
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- out.println(" <HEAD><TITLE>A Servlet</TITLE></HEAD>");
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- out.println(" <BODY>");
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- out.print(" 更新成功<br><a href=MMC_01>查看列表</a> ");
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- out.println(" </BODY>");
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- out.println("</HTML>");
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- }
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- out.flush();
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- out.close();
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- stmt.close();
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- conn.close();
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- }
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- catch (Exception e)
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- {
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- // TODO: handle exception
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- }
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- }
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- public void doPost(HttpServletRequest request, HttpServletResponse response)
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- throws ServletException, IOException
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- {
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- doGet(request, response);
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- }
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-
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- }
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