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我要修改密码 更改密码.jsp:
<form name="ChangePasswordForm" method="post" action="ChangePasswordServlet">
<table id="t01" >
<tbody class="ui-widget-content">
<tr>
<td>Employee ID</td>
<td><input type="text" name="empid" value="<%=session.getAttribute("name")%>" readonly="readonly" required="required"/></td>
</tr>
<tr>
<td>Old Password</td>
<td><input name="OldPassword" type="password" id="OLDpwd" required="required"></td>
</tr>
<tr>
<td>NewPassword</td>
<td><input name="newpassword" type="password" id="newpassword" required="required">
</td>
</tr>
<tr>
<td>Confirm Password</td>
<td><input name="conpassword" type="password" id="conpassword" required="required">
</td>
</tr>
<tr>
</tbody>
</table><br>
<input type="submit" name="Submit" class="myButton" value="Save">
<input type="reset" class="myButton" value="Reset" />
<a href="logout.jsp" class="myButton">Logout</a>
</form>
</body>
密码道.java:
public class PasswordDao {
public static int Update(PasswordBean pb,String sql) throws Exception {
int i=0;
PreparedStatement ps=null;
Connection conn=ConnectionProvider.getConn();
try{
ps = conn.prepareStatement(sql);
ps.setString(1,pb.getNewpassword());
ps.setString(2,pb.getEmpid());
ps.setString(3,pb.getOldPassword());
i=ps.executeUpdate();
}
catch(Exception e){
System.out.println(e);
}
finally {
if (conn != null) {
try {
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
if (ps != null) {
try {
ps.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
return i;
}
}
ChangePasswordServlet.java
public void doPost(HttpServletRequest request,HttpServletResponse response)throws ServletException,IOException{
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
PasswordBean pb = new PasswordBean();
String Emp_id=request.getParameter("empid");
pb.setEmpid(Emp_id);
String Oldpwd=request.getParameter("OldPassword"); pb.setOldPassword(Oldpwd);
String Newpwd=request.getParameter("newpassword"); pb.setNewpassword(Newpwd);
HttpSession session = request.getSession(false);
try{if (Emp_id!=null){
session.setAttribute("Emp_id",Emp_id);}
}catch(Exception e){e.printStackTrace();}
try{if (Oldpwd!=null){
session.setAttribute("Oldpwd",Oldpwd);}
}catch(Exception e){e.printStackTrace();}
try{if (Newpwd!=null){
session.setAttribute("Newpwd",Newpwd);}
}catch(Exception e){e.printStackTrace();}
PasswordDao dao = new PasswordDao();
String sql= "Update employee set Pwd= ? WHERE Emp_id=? and Pwd=?";
try {
int status = PasswordDao.Update(pb, sql);
if(status!=0){
out.print("<p style=\"color:Green\">Password Changed Successfully!!</p>");
RequestDispatcher rd=request.getRequestDispatcher("/changePassword.jsp");
rd.include(request,response);
}
else{
out.print("<p style=\"color:red\">**Password doesnot Change.. Try Again! **</p>");
RequestDispatcher rd=request.getRequestDispatcher("/changePassword.jsp");
rd.include(request,response);
}
}
catch(Exception e){
e.printStackTrace();
}
}
我尝试使用上面的代码，但它给了我 HTTP 状态 404 错误。它不会在 netbeans 中给出任何错误来纠正。请告诉我如何解决。