本文介绍了即使在后端存储数据后仍保留文本框值的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

JSP代码:



<%

String aref = request.getParameter( ArR);

尝试{

Class.forName(com.mysql.jdbc.Driver);

java.sql。 Connection con = DriverManager.getConnection(jdbc:mysql:// localhost:3306 / airproject,root,

root);

ResultSet rs;

语句st = con.createStatement();

System.out.println(插入演示值('+ aref +'));

st.executeUpdate(插入演示值('+ aref +'));

System.out.println(保存记录);

} catch(ClassNotFoundException e){

e.printStackTrace();

} catch(SQLException e){

e。 printStackTrace();

}

session.setAttribute(结果,注册成功);

response.sendRedirect(menu0。 jsp);

%>




HTML代码:






注册












这些代码在后端存储时没有问题。但是当它返回以形成我输入的值时,它应该保留。



提前谢谢



我尝试过:



JSP代码:



<%

String aref = request.getParameter(ArR);

try {

Class.forName(com.mysql.jdbc.Driver);

java.sql.Connection con = DriverManager.getConnection(jdbc:mysql:// localhost:3306 / airproject, root,

root);

ResultSet rs;

语句st = con.createStatement();

System.out.println(插入演示值('+ aref +'));

st.executeUpdate(插入演示值('+ aref + '));

System.out.println(保存记录);

} catch(ClassNotFoundException e){

e。 printStackTrace();

} catch(SQLException e){

e.printStackTrace();

}

s ession.setAttribute(结果,注册成功);

response.sendRedirect(menu0.jsp);

%>




HTML代码:






注册












这些代码在后端存储时没有问题。但当它返回以形成我输入的值时,它应该保留。



提前谢谢

JSP Code:

<%
String aref = request.getParameter("ArR");
try {
Class.forName("com.mysql.jdbc.Driver");
java.sql.Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/airproject", "root",
"root");
ResultSet rs;
Statement st = con.createStatement();
System.out.println("insert into demo values('" + aref + "')");
st.executeUpdate("insert into demo values('" + aref + "')");
System.out.println("Record Saved");
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
session.setAttribute("Result", "Registered successfully");
response.sendRedirect("menu0.jsp");
%>


HTML Code:



Registration






These code don't have problem in storing in the back-end. But when it return to back to form the value what i have enter, it should retain.

Thanks in advance

What I have tried:

JSP Code:

<%
String aref = request.getParameter("ArR");
try {
Class.forName("com.mysql.jdbc.Driver");
java.sql.Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/airproject", "root",
"root");
ResultSet rs;
Statement st = con.createStatement();
System.out.println("insert into demo values('" + aref + "')");
st.executeUpdate("insert into demo values('" + aref + "')");
System.out.println("Record Saved");
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
session.setAttribute("Result", "Registered successfully");
response.sendRedirect("menu0.jsp");
%>


HTML Code:



Registration






These code don't have problem in storing in the back-end. But when it return to back to form the value what i have enter, it should retain.

Thanks in advance

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09-25 02:50