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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.ResultSet;
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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 MMC_01 extends HttpServlet
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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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+ public void doGet(HttpServletRequest request, HttpServletResponse response)
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+ throws ServletException, IOException
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+ {
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+ //设置请求和响应的编码 ，不然页面上容易出现乱码
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+ request.setCharacterEncoding("UTF-8");
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+ response.setCharacterEncoding("UTF-8");
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+
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+ response.setContentType("text/html;UTF-8");
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+ //输出流
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+ PrintWriter out = response.getWriter();
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+ //数据库连接代码
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+ try
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+ {
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+
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+ out.print("<form method=\"get\" action=\"http://localhost:8080/devicemanagement/onlyCheck\" align=\"center\">\r\n" +
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+ "设备名称：<input type=\"text\" name=\"name\" ><br><br>\r\n" +
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+ "<input type=\"submit\" value=\"提交\" class=\"sub\">"+
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+
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+ "<table align=\"center\">");
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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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+ String sql="insert into student(name,calssGrent,result) values('PS的4','3的3',' 发98')";
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+ System.out.println(sql) ;
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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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+
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+ ResultSet rs=stmt.executeQuery("select *from student");
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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.print("<style type=\"text/css\">");
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+ out.print("body{\r\n" +
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+ " background-color: skyblue;\r\n" +
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+ " }");
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+ out.print("body{\r\n" +
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+ " background-color: #EECED9;\r\n" +
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+ " }\r\n" +
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+ " h1{\r\n" +
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+ " text-align: center;\r\n" +
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+ " color:#CD05F7;\r\n" +
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+ " }\r\n" +
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+ " table{\r\n" +
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+ " width: 400px;\r\n" +
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+ " height: 80px;\r\n" +
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+ " text-align: center;\r\n" +
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+ " border: none;\r\n" +
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+ " }\r\n" +
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+ " td{\r\n" +
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+ " border-radius: 20px;\r\n" +
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+ " border:1.3px solid skyblue;\r\n" +
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+ " color:#A71E1E;\r\n" +
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+ " }\r\n" +
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+ " td:hover{\r\n" +
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+ " background-color: skyblue;\r\n" +
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+ " font-size: 17px;\r\n" +
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+ " }");
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+ out.print("h1{\r\n" +
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+ " font-size: 28px;\r\n" +
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+ " text-align: center;\r\n" +
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+ " color:#A75480;\r\n" +
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+ " }\r\n" +
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+ " @keyframes move{\r\n" +
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+ " 0%{\r\n" +
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+ " color:pink;\r\n" +
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+ " }\r\n" +
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+ " 20%{\r\n" +
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+ " color:skyblue;\r\n" +
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+ " }\r\n" +
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+ " 40%{\r\n" +
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+ " color:red;\r\n" +
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+ " }\r\n" +
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+ " 60%{\r\n" +
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+ " color:blue;\r\n" +
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+ " }\r\n" +
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+ " 80%{\r\n" +
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+ " color:green;\r\n" +
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+ " }\r\n" +
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+ " 90%{\r\n" +
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+ " color:gold;\r\n" +
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+ " }\r\n" +
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+ " }\r\n" +
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+ "\r\n" +
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+ " h1{\r\n" +
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+ " animation-name: move;\r\n" +
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+ " animation-duration: 30s;\r\n" +
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+ " }");
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+ out.print(" .main{\r\n" +
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+ " border-radius: 20px;\r\n" +
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+ " width: 150px;\r\n" +
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+ " height: 40px;\r\n" +
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+ " text-align: center;\r\n" +
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+ " font-size: 28px;\r\n" +
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+ " text-decoration: none;\r\n" +
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+ " border: solid;\r\n" +
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+ " display: block;\r\n" +
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+ " position: absolute;\r\n" +
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+ " top: 85%;\r\n" +
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+ " right: 8%;\r\n" +
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+ " }\r\n" +
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+ " .main:hover{\r\n" +
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+ " background-color: skyblue;\r\n" +
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+ " }");
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+
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+ out.print("</style>");
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+ out.println(" <BODY>");
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+ //输出表头部分
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+ out.print("<h1>设备管理系统</h1>");
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+ out.print("<table align='center' border='1'><tr><td>设备名称" +
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+ "</td><td>数量</td><td>价格</td><td>修改</td><td>删除</td></tr>");
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+ while(rs.next())
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+ {
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+ //获取数据库中的ID
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+ String name=rs.getString("name");
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+
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+ //输出一列元素
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+ out.print("<tr><td>"+rs.getString("name")
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+ +"</td><td>"+rs.getString("calssGrent")+"" +
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+ "</td><td>"+rs.getString("result")+"</td>" +
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+ "<td><a href='UpdatePage?name="+name+"'>修改</a></td>" +
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+ "<td><a href='delete?name="+name+"'> 删除 </a></td></tr>");
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+
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+ }
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+ out.println("<td><a href=AddPage>添加数据</a></td>");
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+ out.print("<a href=\"test2.html\" class=\"main\">返回主页</a>");
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+ out.println(" </BODY>");
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+ out.println("</HTML>");
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+ conn.close();
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+
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+ }
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+ catch (Exception e)
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+ {
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+ e.printStackTrace();
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+ }
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+ out.flush();
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+ out.close();
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+ }
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+
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+ }
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