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@@ -1,85 +1,85 @@
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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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- 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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- 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('PS4','2333',' 2998')";
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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.println(" <BODY>");
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- out.println(" <center><font size='14px'> 设备管理系统");
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- out.println("</font> </center>");
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- //输出表头部分
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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.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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+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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+ // 杩炴帴鏁版嵁搴撶殑鐢ㄦ埛鍚�
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+ public static final String DBUSER = "root";
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+ // 杩炴帴鏁版嵁搴撶殑瀵嗙爜
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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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+ //璁剧疆璇锋眰鍜屽搷搴旂殑缂栫爜 锛屼笉鐒堕〉闈�笂瀹规槗鍑虹幇涔辩爜
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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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+ //杈撳嚭娴�
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+ PrintWriter out = response.getWriter();
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+ //鏁版嵁搴撹繛鎺ヤ唬鐮�
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+ try
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+ {
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+ Connection conn = null; // 琛ㄧず鏁版嵁搴撶殑杩炴帴鐨勫�璞�
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+ Statement stmt = null; // 琛ㄧず鏁版嵁搴撶殑鏇存柊鎿嶄綔
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+ String sql="insert into student(name,calssGrent,result) values('PS4','2333',' 2998')";
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+ System.out.println(sql) ;
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+ // 1銆佷娇鐢–lass绫诲姞杞介┍鍔ㄧ▼搴�
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+ Class.forName("com.mysql.jdbc.Driver");
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+ // 2銆佽繛鎺ユ暟鎹�簱
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+ conn = DriverManager.getConnection(DBURL, DBUSER, DBPASS);
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+ // 3銆丼tatement鎺ュ彛闇€瑕侀€氳繃Connection鎺ュ彛杩涜�瀹炰緥鍖栨搷浣�
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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.println(" <BODY>");
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+ out.println(" <center><font size='14px'> 璁惧�绠＄悊绯荤粺");
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+ out.println("</font> </center>");
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+ //杈撳嚭琛ㄥご閮ㄥ垎
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+ out.print("<table align='center' border='1'><tr><td>璁惧�鍚嶇О" +
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+ "</td><td>鏁伴噺</td><td>浠锋牸</td><td>淇�敼</td><td>鍒犻櫎</td></tr>");
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+ while(rs.next())
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+ {
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+ //鑾峰彇鏁版嵁搴撲腑鐨処D
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+ String name=rs.getString("name");
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+
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+ //杈撳嚭涓€鍒楀厓绱�
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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+"'>淇�敼</a></td>" +
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+ "<td><a href='delete?name="+name+"'> 鍒犻櫎 </a></td></tr>");
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+
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+ }
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+ out.println("<td><a href=AddPage>娣诲姞鏁版嵁</a></td>");
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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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