小程序input输入框输入和删除时闪烁的问题

毕业论文选题系统是基于微信小程序，后端是基于java编程语言，ssm框架，mysql数据库和IDEA工具开发，本系统分为学生，教师，管理员三个角色；学生可以注册登陆系统，查看系统公告，选课论文课题，提交课题论文，查看论文审核，答辩结果等信息；教师可以发布课题，审核学生论文，课题答辩结果，在线回复学生留言；管理员对学生，教师，公告，论文，选题，答辩等进行管理；本系统功能齐全，文档齐全，适合作为微信小程序毕业设计来参考和学习。

一技术环境

jdk版本：18 及以上

ide工具：IDEA ，微信小程序开发工具

数据库: mysql57 （必须57）

编程语言: Java

tomcat: 80 及以上

java框架：SSM

maven: 361

前端：layui ，微信

详细技术：HTML+CSS+JS+JSP+JAVA+SSM+MYSQL+JQUERY+MAVEN+微信开发工具

二项目文件（项目获取请看文末官网）

在这里插入描述

三系统功能

在这里插入描述

四代码示例

package comlmucontroller;

/

和登陆有关的都在这里

/

import comopensymphonyxwork2ActionContext;

import comopensymphonyxwork2ActionSupport;

import comlmumodelRole;

import comlmumodelUser;

import comlmuserviceRoleService;

import comlmuserviceUserService;

import comlmuutilsJsonUtils;

import comlmuutilsUserUtils;

import orgapachecommonscollectionsmapHashedMap;

import orgapachestruts2ServletActionContext;

import orgspringframeworkbeansfactoryannotationAutowired;

import orgspringframeworkcontextannotationScope;

import orgspringframeworkstereotypeController;

import javaioIOException;

import javautilHashMap;

import javautilMap;

@Controller("loginController")

@Scope("prototype")

public class LoginController extends ActionSupport {

@Autowired

private UserService userService;

@Autowired

private RoleService roleService;

private User user;

private Map<String, Object> map = new HashMap();

public User getUser() {

return user;

}

public void setUser(User user) {

thisuser = user;

}

public UserService getUserService() {

return userService;

}

public void setUserService(UserService userService) {

thisuserService = userService;

}

/

用户登陆

@return

/

public void index() throws IOException {

User user1 = userServicegetUser(user);

if (user1 != null){

if (user1getIsSh() == 1){

if (user1getRole()getEnName()equals("admin")){

ActionContextgetContext()getSession()put("user", user1);

}

if (user1getRole()getEnName()equals("js")){

ActionContextgetContext()getSession()put("user1", user1);

}

if (user1getRole()getEnName()equals("xs")){

ActionContextgetContext()getSession()put("user2", user1);

}

mapput("flag", 1);

mapput("url", "login_indexsdo");

mapput("id", user1getId());

JsonUtilstoJson(map);

} else {

mapput("flag", 2);

JsonUtilstoJson(map);

}

} else {

mapput("flag", 3);

JsonUtilstoJson(map);

}

}

public String indexs() throws IOException {

User u = UserUtilsgetUser();

if (u != null){

ActionContextgetContext()put("user", u);

String ss = ugetRole()getEnName();

ActionContextgetContext()put("role", ugetRole()getEnName());

}

return SUCCESS;

}

//登陆页面

public String login() {

return SUCCESS;

}

//退出

public String tuichu() {

ActionContext ac = ActionContextgetContext();

Map session = acgetSession();

sessionremove("userName");

sessionremove("userId");

ServletActionContextgetRequest()getSession()invalidate();

return "login";

}

}

package comlmucontroller;

/

用户新增

/

import comopensymphonyxwork2ActionContext;

import comopensymphonyxwork2ActionSupport;

import comopensymphonyxwork2ModelDriven;

import comlmumodelRole;

import comlmumodelUser;

import comlmuserviceRoleService;

import comlmuserviceUserService;

import comlmuutilsJsonUtils;

import comlmuutilsPager;

import comlmuutilsUserUtils;

import orgspringframeworkbeansfactoryannotationAutowired;

import orgspringframeworkcontextannotationScope;

import orgspringframeworkstereotypeController;

import javaawteventFocusEvent;

import javaioIOException;

import javautilDate;

import javautilHashMap;

import javautilMap;

@Controller("userController")

@Scope("prototype")

public class UserController extends ActionSupport implements ModelDriven<User> {

@Autowired

private UserService userService;

@Autowired

private RoleService roleService;

private User user;

private Integer userId;

private Map<String, Object> map = new HashMap();

/

list

@return

/

public String list() throws IOException {

User user1 = UserUtilsgetUser();

if (user1 == null || user1getId() == null){

ActionContextgetContext()put("login", 1);

return SUCCESS;

}

Pager<User> pagers = null;

Role role = user1getRole();

if (rolegetEnName()equals("admin")) {

pagers = userServicegetList(user);

ActionContextgetContext()put("pagers", pagers);

ActionContextgetContext()put("user", user1);

ActionContextgetContext()put("role", role);

ActionContextgetContext()put("bean", user);

return SUCCESS;

} else if (rolegetEnName()equals("xs") || rolegetEnName()equals("js")) {

pagers = userServicegetList(user1);

ActionContextgetContext()put("pagers", pagers);

ActionContextgetContext()put("bean", user);

return SUCCESS;

}

return null;

}

/

跳转add

@return

/

public String add() {

Pager<Role> pagers = roleServicepagers();

ActionContextgetContext()put("pagers", pagers);

return SUCCESS;

}

/

查询修改

@return

/

public String edit() {

User bean = userServicefindById(userId);

Pager<Role> pagers = roleServicepagers();

ActionContextgetContext()put("bean", bean);

ActionContextgetContext()put("pagers", pagers);

return SUCCESS;

}

/

审核

@return

/

public void updateSh() throws IOException {

usersetIsSh(1);

userServiceupdates(user);

mapput("flag", true);

mapput("url", "user_listdo");

JsonUtilstoJson(map);

}

/

更新

@return

/

public String update() throws IOException {

if (usergetPass()equals("")){

usersetPass(null);

}

userServiceupdates(user);

mapput("flag", true);

mapput("url", "user_listdo");

JsonUtilstoJson(map);

return SUCCESS;

}

/

保存

@return

/

public void save() throws IOException {

if (userServicegetUser(user) != null){

mapput("flag", false);

mapput("url", "login_logindo");

JsonUtilstoJson(map);

} else {

usersetTime(new Date());

userServicesave(user);

mapput("flag", true);

mapput("url", "login_logindo");

JsonUtilstoJson(map);

}

}

public void delete() throws IOException {

User user1 = userServicefindById(userId);

user1setIsDelete(1);

userServiceupdate(user1);

mapput("flag", true);

mapput("url", "user_listdo");

JsonUtilstoJson(map);

}

@Override

public User getModel() {

if (user == null) {

user = new User();

}

return user;

}

public Integer getUserId() {

return userId;

}

public void setUserId(Integer userId) {

thisuserId = userId;

}

public User getUser() {

return user;

}

public void setUser(User user) {

thisuser = user;

}

}

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