username总是空
来源：5-12 阶段项目
博哥22
2019-03-26 17:04
//用户
package po;
public class Users {
private String username;
private String password;
public Users() {
}
public String getUsername() {
return username;
}
public void setUesername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}方法
package dao;
import po.Users;
public class UserDAO {
public boolean usersLogIn(Users u ){
if ("admin".equals(u.getUsername()) &&"admin".equals(u.getPassword()))
{
return true;
}
else
{
return false;
}
}
}登录
<%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>用户登录</title> </head> <body> <h1>用户登录</h1> <hr> <form action="dolog.jsp" name="loginForm" method="post"> <table> <tr> <td>用户名</td> <td><input type="text" name="username"/></td> </tr> <tr> <td>密码：</td> <td ><input type="password" name="password"/></td> </tr> <tr> <td colspan="2"><input type="submit" value="登录"></td> </tr> </table> </form> </body> </html>
处理
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<jsp:useBean id="loginUser" class="po.Users" scope="page"></jsp:useBean>
<jsp:useBean id="userDAO" class="dao.UserDAO" scope="page"></jsp:useBean>
<jsp:setProperty name="loginUser" property="*"></jsp:setProperty>
<%request.setCharacterEncoding("utf-8");%>
<%
String path=request.getContextPath();
String basePath=request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort(); if (userDAO.usersLogIn(loginUser)){
session.setAttribute("loginUser",loginUser.getUsername());
request.getRequestDispatcher("loginSuccess.jsp").forward(request,response);
}
else {
response.sendRedirect("log_failure.jsp");
}%>
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2回答
-
- 慕沐4960199
- 2019-03-27 18:22:59
还有就是建议你使用idea编译器，没有用到的变量和方法会用虚线标识出来，如果你整个项目写完，发现还有虚线说明那个变量或方法始终都没用过
-
- 慕沐4960199
- 2019-03-27 18:20:55
是你自己手写的吧！，不是可以直接生成的说...
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