删除 'src\BA_Control/pieChange.java'

src\\BA_Control/pieChange.java

@@ -1,74 +0,0 @@
-package BA_Control;
-
-import java.io.IOException;
-import java.io.PrintWriter;
-import java.sql.Connection;
-import java.sql.DriverManager;
-import java.sql.PreparedStatement;
-//import java.sql.ResultSet;
-//import java.sql.Statement;
-import java.sql.Statement;
-
-import javax.servlet.ServletException;
-import javax.servlet.http.HttpServlet;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-
-public class pieChange extends HttpServlet {
-	public static final String DBURL = "jdbc:mysql://localhost:3306/kui?serverTimezone=GMT%2B8&useUnicode=true&characterEncoding=UTF-8";
-	public static final String DBUSER = "root";
-	public static final String DBPASS = "001011";
-	@Override
-	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
-		request.setCharacterEncoding("UTF-8");
-		response.setCharacterEncoding("UTF-8");
-		response.setContentType("text/html;UTF-8");
-		// 输出流
-		PrintWriter out = response.getWriter();
-		// 数据库连接代码
-		try {
-			
-			//修改
-			String changeName = request.getParameter("changeName");
-			String changeScore = request.getParameter("changeScore");
-			
-			Connection conn = null; // 表示数据库的连接的对象
-			//Statement stmt = null; // 表示数据库的更新操作 
-			PreparedStatement ps = null;
-
-			// 1、使用Class类加载驱动程序
-			try {
-				Class.forName("com.mysql.jdbc.Driver");
-			} catch (ClassNotFoundException e) {
-				out.print("找不到driver");
-				e.printStackTrace();
-			}
-
-			// 2、连接数据库
-			conn = DriverManager.getConnection(DBURL, DBUSER, DBPASS);
-			//stmt = conn.createStatement();
-
-			//修改
-			if(!changeName.equals("") && !changeScore.equals("")) {
-				out.println("进来修改啦");
-				try {
-					ps = conn.prepareStatement("update pie set score =" + changeScore + " where name =\"" + changeName + "\""); //转义字符串\,因为changeName是字符串,注意这里不要手贱加了空格
-					ps.executeUpdate();
-				} catch (Exception e) {
-					out.print("修改出了点问题");
-					e.printStackTrace();
-				}
-			}
-			
-			
-			conn.close();
-
-		} catch (Exception e) {
-			e.printStackTrace();
-		}
-			out.flush();
-			out.close();
-
-	}
-
-}