java一分钟三次登录错误信息限制
作者：互联网
一、功能
java一分钟三次登录错误信息限制
二、伪代码
检测登录名是否是在库用户：
false:提示错误信息无用户
true:检查是否加入过错误登陆列表
false:新建一个，id1=当前时间戳，id2=0,id3=0，loginname=loginname
true:检测loginname为loginname的用户的id2
false:为0，更新此条数据库信息，id2=当前时间戳
true:不为0，检测loginname为loginname的用户的id3
false:为0，更新此条数据库信息，id3=当前时间戳
true:不为0，判断id3-id2=1>60
true:禁用该用户
false:判断d3-d2>60
true:d1=d3,d2=0,d3=0
false:d1=d2,d2=d3,d3=0
没看错就是六层if-else嵌套（尬笑哈哈哈，等我学会了cookie我再回来更新）
三、数据库
四、代码
Controller
@RequestMapping(value = "managers_check_login")
public String managers_check_login(String loginname, String password, HttpServletRequest request) throws SocketException, UnknownHostException, ParseException {
String msg = "";
SysManagers s = new SysManagers();
s.setLoginname(loginname.trim());
s.setPassword(ShaEncrypt.shaEncode(password));
if(managers_service.find_check_loginname(loginname).isEmpty()){
msg="error";
}else {
request.setAttribute("na",loginname);
List<SysManagers> check_login = managers_service.select_check_login(s);
if(check_login.isEmpty()){
//切入代码片段
LoginInfoSave(loginname,"1");
//先查出错历史里有没有，有就继续增加一个，没有就创建一个
List<SysManagersWrongLoginHistory> wronghis_list=wronghis_service.find_wrong_by_loginname(loginname);
//非法用户
msg = "error";
if(wronghis_list.isEmpty()) {
//新建一个
SysManagersWrongLoginHistory wronghis = new SysManagersWrongLoginHistory();
wronghis.setId(CreateUUID.getuuid());
wronghis.setD1(System.currentTimeMillis());
wronghis.setLoginname(loginname);
wronghis_service.save_new_wrong_by_loginname(wronghis);
//非法用户
msg = "error";
}else {
if(wronghis_list.get(0).getD2()==0&&wronghis_list.get(0).getD3()==0){
SysManagersWrongLoginHistory wronghis = new SysManagersWrongLoginHistory();
wronghis.setId(CreateUUID.getuuid());
wronghis.setD1(0);
wronghis.setD2(System.currentTimeMillis());
wronghis.setD3(0);
wronghis.setLoginname(loginname);
wronghis_service.update_new_wrong_by_loginname(wronghis);
//非法用户
msg = "error";
}
else{
if(wronghis_list.get(0).getD3()==0){
SysManagersWrongLoginHistory wronghis = new SysManagersWrongLoginHistory();
wronghis.setId(CreateUUID.getuuid());
wronghis.setD1(0);
wronghis.setD3(System.currentTimeMillis());
wronghis.setD2(0);
wronghis.setLoginname(loginname);
wronghis_service.update_new_wrong_by_loginname(wronghis);
List<SysManagersWrongLoginHistory> wronghis_list_inner=wronghis_service.find_wrong_by_loginname(loginname);
long a = wronghis_list_inner.get(0).getD1();
long b = wronghis_list_inner.get(0).getD2();
long c = wronghis_list_inner.get(0).getD3();
long d13 = c - a ;
long d23 = c - b ;
System.out.println("31之间的秒数差为："+d13/1000);
System.out.println("1："+a);
System.out.println("3："+c);
if(d13/1000>60){
if(d23/1000>60){
SysManagersWrongLoginHistory wronghis_change = new SysManagersWrongLoginHistory();
wronghis_change.setD1(c);
wronghis_change.setD2(0);
wronghis_change.setD3(0);
wronghis_change.setLoginname(loginname);
wronghis_service.change_new_wrong_by_loginname(wronghis_change);
System.out.println("1删去");
}else{
SysManagersWrongLoginHistory wronghis_change = new SysManagersWrongLoginHistory();
wronghis_change.setD1(b);
wronghis_change.setD2(c);
wronghis_change.setD3(0);
wronghis_change.setLoginname(loginname);
wronghis_service.change_new_wrong_by_loginname(wronghis_change);
System.out.println("12删去");
}
}
//非法用户
msg = "error";
}else {
msg="账户被锁定，请联系管理员";
}
}
}
}else{
//正常用户
String logname = "";
for(SysManagers m:check_login){
logname = m.getLoginname();
}
List<SysDic> dic_list = dic_service.selectAll();
for(SysDic d:dic_list){
request.getSession().setAttribute(d.getDickeys(),d.getDicdes());
}
request.getSession().setAttribute("loginname",logname);
request.getSession().setMaxInactiveInterval(18200);
//切入代码片段
LoginInfoSave(loginname,"0");
msg = "success";
}
}
request.setAttribute("msg",msg);
return "index/login";
}
@RequestMapping(value = "lock_users")
public String lock_users(String loginname) {
List<SysManagers> list=managers_service.find_check_loginname(loginname);
String id=list.get(0).getId();
SysManagers s=new SysManagers();
s.setId(id);
s.setFlag("1");
managers_service.update_flag(s);
return "index/login";
}
JSP：
<script type="text/javascript">
function check_msg(){
var msg = '${msg}';
if(msg=='error'){
alert("系统提示：您的账号或者密码不正确，导致登录失败！一分钟内同一个账号密码填错三次，账号会被冻结！");
}
if(msg=="success"){
window.location.href = "index";
}
if (msg=="账户被锁定，请联系管理员"){
alert("账户被锁定，请联系管理员");
window.location.href = "lock_users?loginname=${na}";
}
}
</script>
五、展示
标签：loginname,java,list,错误信息,一分钟,wronghis,msg,new,change 来源： https://www.cnblogs.com/lumc5/p/15625630.html