库存管理系统的登陆问题
这是我的login.jsp页面
<%@ page contentType="text/html; charset=UTF-8" %>
<%
session.removeAttribute("userInfo");
%>
<html>
<head>
<title>库存管理系统</title>
<script type="text/javascript">
function check(){
var logincode = document.getElementById("logincode").value;
var password = document.getElementById("password").value;
var error = document.getElementById("error");
error.innerHTML="";
if(logincode==""){
error.innerHTML="用户名不能为空！";
return false;
}
if(password==""){
error.innerHTML="密码不能为空！";
return false;
}
return true;
}
</script>
<style type="text/css">
* { margin:0 auto; padding:0; border:0;font-size:12px;}
body { background:#0462A5; font:12px "宋体"; color:#004C7E;}
input { border:1px solid #004C7E;}
.main { background:url(img/login/bg.jpg) repeat-x;}
.login { background:#DDF1FE; width:468px; height:262px; border:1px solid #000;}
.top { background:url(img/login/login_bg.jpg) repeat-x; width:464px; height:113px; border:1px solid #2376B1; margin-top:1px;}
.logo { background:url(img/login/logo.gif) no-repeat; width:150px; height:42px; float:left; margin:29px 0 0 14px;}
.lable { background:url(img/login/lable.gif) no-repeat; width:157px; height:32px; float:right; margin:81px 31px 0 0;}
.submit { background:url(img/login/submit.gif) no-repeat; cursor:hand; width:71px; height:24px; border:0;}
.reset { background:url(img/login/reset.gif) no-repeat; cursor:hand; width:71px; height:24px; border:0;}
</style>
</head>
<body>
<div>
<table width="100%" height="100%" class="main" cellpadding="0" cellspacing="0">
<tr>
<td align="center">
<div class="login">
<div class="top">
<div class="logo"></div>
<div class="lable"></div>
</div>
<table width="466" cellpadding="0" cellspacing="0">
<tr>
<td style="padding-top:30px;">
<form action="user_login.do" method="post" >
<table width="100%" cellpadding="0" cellspacing="0">
<tr>
<td align="right" height="27">用户名:</td>
<td align="right" width="161">
<input type="text" id="logincode" style="width:150px;height:20px" />
</td>
<td align="center" height="29">
<input name="submit" type="submit" value="" onclick="return check()" class="submit" />
</td>
</tr>
<tr>
<td align="right" height="27">密 码:</td>
<td align="right" width="161">
<input type="password" id="password" style="width:150px;height:20px" />
</td>
<td align="center" height="29">
<input name="reset" type="reset" value="" class="reset" />
</td>
</tr>
</table>
</form>
</td>
</tr>
</table>
<table width="100%" cellpadding="0" cellspacing="0" style="margin-top:8px;">
<tr>
<td align="center" style="height:25"><font id="error" color="red">${error} </font></td>
</tr>
<tr>
<td align="center">MyStock 2021</td>
</tr>
</table>
</div>
<!--login -->
</td>
</tr>
</table>
</body>
</html>我数据库设置的用户名和密码都是admin，用Tomcat运行完毕后，在浏览器输入路径，显示登陆界面，将用户名和密码输入进去后，结果弹出这样一个异常
我查完知道是数据没有获取到，然后点开了login方法，但是并没有发现什么异常
package com.cxstock.action.power;
import com.cxstock.action.BaseAction;
import com.cxstock.biz.power.UserBiz;
import com.cxstock.biz.power.dto.UserDTO;
import com.cxstock.utils.pubutil.Page;
import com.cxstock.utils.system.Constants;
@SuppressWarnings("serial")
public class UserAction extends BaseAction {
private UserBiz userBiz;
private Integer userid;
private String logincode;
private String password;
private String username;
private Integer roleid;
private Integer state;
private String bz;
/** 登录验证 */
public String login() {
try{
String code = logincode.trim().toLowerCase();
String pass = password.trim().toLowerCase();
UserDTO userInfo = userBiz.login(code, pass);
if (userInfo != null) {
this.getSession().setAttribute(Constants.USERINFO, userInfo);
return "success";
} else{
this.getRequest().setAttribute("error", "用户名或密码错误");
return "input";
}
}catch (Exception e) {
e.printStackTrace();
this.getRequest().setAttribute("error", "连接失败");
return "login";
}
}
/** 用户权限菜单 */
public String getMenuBuf() {
UserDTO userInfo = this.getUserDTO();
try {
if(userInfo!=null){
this.outString(userInfo.getUsermenu());
}
} catch (Exception e) {
e.printStackTrace();
this.outError();
}
return null;
}
/**
* 分页查询用户列表
*/
public String findPageUser() {
try {
Page page = new Page();
page.setStart(this.getStart());
page.setLimit(this.getLimit());
userBiz.findPageUser(page);
this.outPageString(page);
} catch (Exception e) {
e.printStackTrace();
this.outError();
}
return null;
}
/**
* 保存/修改用户
*/
public String saveOrUpdateUser() {
try {
UserDTO dto = new UserDTO(userid,logincode,password,username,roleid,null,state,bz);
boolean bool = userBiz.saveOrUpdateUser(dto);
if(bool){
if(userid==null){
this.outString("{success:true,message:'保存成功!'}");
}else{
this.outString("{success:true,message:'修改成功!'}");
}
}else{
this.outString("{success:false,errors:'用户账号已存在!'}");
}
} catch (Exception e) {
e.printStackTrace();
this.outError();
}
return null;
}
/**
* 删除用户
*/
public String deleteUser() {
try {
userBiz.deleteUser(userid);
this.outString("{success:true}");
} catch (Exception e) {
e.printStackTrace();
this.outError();
}
return null;
}
public void setUserBiz(UserBiz userBiz) {
this.userBiz = userBiz;
}
public void setUserid(Integer userid) {
this.userid = userid;
}
public void setLogincode(String logincode) {
this.logincode = logincode;
}
public void setPassword(String password) {
this.password = password;
}
public void setUsername(String username) {
this.username = username;
}
public void setRoleid(Integer roleid) {
this.roleid = roleid;
}
public void setState(Integer state) {
this.state = state;
}
public void setBz(String bz) {
this.bz = bz;
}
}
传参有误，你的输入框里面没有参数名，你应该加上在input标签里面加上name属性
例如用户名的name可以设置为 name="username",提交的时候浏览器上面就会有xxxx?username=xxx，
<input type="text" name="username" style="width:150px;height:20px" />
你在login方法中return的返回值在struts.xml配置文件中没有找到对应的<result> ，检查下是哪一个没有配置好
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<constant name="struts.action.extension" value="do" />
<!-- 设置Web应用的默认编码集为UTF-8 -->
<constant name="struts.i18n.encoding" value="UTF-8"/>
<!-- 设置Struts2默认的ObjectFactory为spring -->
<constant name="struts.objectFactory" value="spring" />
<!-- 设置Struts2应用是否处于开发模式，通常在开发调试阶段设为true,正式上线后可设为false -->
<constant name="struts.devMode" value="true" />
<!-- 设置Struts2的默认主题为simple -->
<constant name="struts.ui.theme" value="simple" />
<!-- 定义一个名为 cxstock 的包，继承 Struts 2 的默认包 -->
<package name="cxstock" extends="struts-default">
<!-- 配置自定义拦截器LoginedCheckInterceptor -->
<interceptors>
<interceptor name="loginedCheck" class="com.cxstock.utils.filter.LoginedCheckInterceptor"/>
</interceptors>
<!-- 定义全局result -->
<global-results>
<!-- 定义名为exception的全局result -->
<result name="exception">/exception.jsp</result>
<result name="tologin">/jsp/main/tologin.htm</result>
</global-results>
<!-- 定义全局异常映射 -->
<global-exception-mappings>
<!-- 捕捉到Exception异常(所有异常)时跳转到exception所命名的视图上 -->
<exception-mapping exception="java.lang.Exception" result="exception"/>
</global-exception-mappings>
</package>
<package name="main" extends="cxstock" namespace="/">
<action name="*_*" class="{1}Action" method="{2}">
<result name="input">/login.jsp</result>
<result name="success" type="redirect">/jsp/main/index.jsp</result>
<interceptor-ref name="loginedCheck"/>
<interceptor-ref name="defaultStack"/>
</action>
</package>
</struts>
这是我的Struts.xml，哪里的问题
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