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  • 设计程序,实现利用提交页面提交要添加的学生信息,然后进入添加处理程序实现添加到数据库。

    <%@page contentType="text/html" pageEncoding="UTF-8" %>
    <html>
    </head><title>添加任意学生的提交页面</title></head>
    //insert_stu_2_tijiao.jsp
    <body>
    <form action="insert_stu_2.jsp" method="post">
    <table border="0"width="238"height="252">
    <tr><td>学号</td><td><input type="text"name="id"></td></tr>
    <tr><td>姓名</td><td><input type="text"name="name"></td></tr>
    <tr><td>性别</td><td><input type="text"name="sex"></td></tr>
    <tr><td>年龄</td><td><input type="text"name="age"></td></tr>
    <tr><td>体重</td><td><input type="text"name="weight"></td></tr>
    <tr><td>身高</td><td><input type="text"name="hight"></td></tr>
    <tr align="center">
    <td colspan="2">
    <input type="submit"value="提 交">&nbsp;&nbsp;&nbsp;
    <input type="reset"value="取 消 ">
    </td>
    </tr>
    </table>
    </form>
    </body>
    </html>

    //insert_stu_2.jsp

    <%@ page language="java" import="java.sql.*" pageEncoding="UTF-8"%>
    <html>
    </head><title>利用PreparedStatement对象添加一条记录页面</title></head>

    <body>
    <%String driverName="com.mysql.jdbc.Driver";
    String userName="root";
    String userPwd="184896";
    String dbName="students";
    String url1="jdbc:mysql://localhost:3306/"+dbName;
    String url2="?user="+userName+"&password="+userPwd;
    String url3="&userUnicode=true&characterEncoding=UTF-8";
    String url=url1+url2+url3;
    Class.forName(driverName);
    Connection conn=DriverManager.getConnection(url);

    String sql="Insert into stu_info(id,name,sex,age,weight,hight)values(?,?,?,?,?,?)";
    PreparedStatement pstmt=conn.prepareStatement(sql);
    request.setCharacterEncoding("UTF-8");
    int id=Integer.parseInt(request.getParameter("id"));
    String name=request.getParameter("name");
    String sex=request.getParameter("sex");
    int age=Integer.parseInt(request.getParameter("age"));
    float weight=Float.parseFloat(request.getParameter("weight"));
    float hight=Float.parseFloat(request.getParameter("hight"));

    pstmt.setInt(1,id);
    pstmt.setString(2,name);
    pstmt.setString(3,sex);
    pstmt.setInt(4,age);
    pstmt.setFloat(5,weight);
    pstmt.setFloat(6,hight);
    int n=pstmt.executeUpdate();
    if(n==1){%>数据插入操作成功!<br><%}
    else{%>数据插入操作失败!<br><%}
    if(pstmt!=null){pstmt.close();}
    if(conn!=null){conn.close();}%>
    </body>
    </html>

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  • 原文地址:https://www.cnblogs.com/liao-pxsoftware15/p/7689772.html
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