jsp連線資料庫
阿新 • • 發佈：2020-07-19
<body>
<form action="tianjia.jsp">
<table>
<tr>
<td>序號：</td>
<td><input type="text" name="id"></td>
</tr>
<tr>
<td>性別：</td>
<td><input type="text" name="sex"></td>
</tr>
<tr>
<td>年齡：</td>
<td><input type="text" name="age"></td>
</tr>
<tr>
<td><input type="submit" name="sub" value="提交"></td>
</tr>
</table>
</form>
<br>
</body>
main.jsp
<body>
<%
request.setCharacterEncoding("utf-8");
String id = request.getParameter("id");
String sex = request.getParameter("sex");
String age = request.getParameter("age");
Connection con = null;
Statement st = null;
ResultSet rs
<body>
<%
/*
String id=request.getParameter("id");
byte b[]=id.getBytes("UTF-8");
id=new String(b,"UTF-8");
String sex=request.getParameter("sex");
byte b1[]=sex.getBytes("UTF-8");
sex=new String(b1,"UTF-8");
String age=request.getParameter("age");
byte b2[]=age.getBytes("UTF-8");
age=new String(b2,"UTF-8");
*/
Connection con = null;
Statement st = null;
ResultSet rs = null;
//註冊驅動
try {
Class.forName("com.mysql.jdbc.Driver");
//載入驅動
String url = "jdbc:mysql://localhost:3306/jdbc";
String user = "root";
String password = "root";
con = DriverManager.getConnection(url, user, password);
//建立語句
st = con.createStatement();
// rs = st.executeQuery("select id,sex,age from ceshi");
// 5.處理結果
/*while (rs.next()) {
out.println(rs.getInt("id") + "\t"
+ rs.getString("sex") + "\t" + rs.getInt("age"));}*/
%>
<table align="center">
<tr>
<td>id:</td>
<td>性別：</td>
<td>年齡：</td>
</tr>
<%
rs = st.executeQuery("select id,sex,age from ceshi");
%>
<%
while (rs.next()) {
%>
<tr>
<td><%=rs.getInt("id")%></td>
<td><%=rs.getString("sex")%></td>
<td><%=rs.getInt("age")%></td>
</tr>
<%
}
%>
<%
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (rs != null) {
rs.close();
}
} finally {
try {
if (st != null) {
st.close();
}
} finally {
if (con != null) {
con.close();
}
}
}
}
%>
</table>
</body>
slelect.jsp