Java项目:学生选课管理系统(java+SpringBoot+Mybatis-plus+Thymeleaf+mysql)

系统主要有以下功能：选课管理、教评管理、班级管理、年级管理、专业管理、系部管理、教师授课管理、录入教师、学生管理、学生选课管理、退学管理、退选管理、课目管理、成绩管理、新闻管理、系统管理等
主要有三个角色：管理员、学生、教师。
管理员后台账号：admin 密码：123456
学生账号：student表密码是身份后6位（教师同样）
运行环境：windows/Linux均可、jdk1.8、mysql5.7、idea/eclipse均可

用户管理控制器：
@RequestMapping("/user/")
@Controller
public class UserController {
@Autowired
private IUserService userService;
@Autowired
private IRoleService roleService;

@Resource
private ProcessEngineConfiguration configuration;
@Resource
private ProcessEngine engine;

@GetMapping("/index")
@ApiOperation(“跳转用户页接口”)
@PreAuthorize(“hasRole(‘管理员’)”)
public String index(String menuid,Model model){
List roles = queryAllRole();
model.addAttribute(“roles”,roles);
model.addAttribute(“menuid”,menuid);
//用户首页
return “views/user/user_list”;
}

@GetMapping("/listpage")
@ApiOperation(“查询用户分页数据接口”)
@ApiImplicitParams({
@ApiImplicitParam(name = “UserQuery”, value = “用户查询对象”, defaultValue = “userQuery对象”)
})
@ResponseBody
@PreAuthorize(“hasRole(‘管理员’)”)
public PageList listpage(UserQuery userQuery){
return userService.listpage(userQuery);
}

//添加用户
@PostMapping("/addUser")
@ApiOperation(“添加用户接口”)
@ResponseBody
public Map addUser(User user){
Map ret = new HashMap<>();
ret.put(“code”,-1);
if(StringUtils.isEmpty(user.getUsername())){
ret.put(“msg”,“请填写用户名”);
return ret;
}
if(StringUtils.isEmpty(user.getPassword())){
ret.put(“msg”,“请填写密码”);
return ret;
}
if(StringUtils.isEmpty(user.getEmail())){
ret.put(“msg”,“请填写邮箱”);
return ret;
}
if(StringUtils.isEmpty(user.getTel())){
ret.put(“msg”,“请填写手机号”);
return ret;
}
if(StringUtils.isEmpty(user.getHeadImg())){
ret.put(“msg”,“请上传头像”);
return ret;
}
if(userService.addUser(user)<=0) {
ret.put(“msg”, “添加用户失败”);
return ret;
}
ret.put(“code”,0);
ret.put(“msg”,“添加用户成功”);
return ret;
}

@PostMapping("/editSaveUser")
@ApiOperation(“修改用户接口”)
@PreAuthorize(“hasRole(‘管理员’)”)
@ResponseBody
public Message editSaveUser(User user){
if(StringUtils.isEmpty(user.getUsername())){
return Message.error(“请填写用户名”);
}
if(StringUtils.isEmpty(user.getEmail())){
return Message.error(“请填写邮箱”);
}
if(StringUtils.isEmpty(user.getTel())){
return Message.error(“请填写手机号”);
}
try {
userService.editSaveUser(user);
return Message.success();
} catch (Exception e) {
e.printStackTrace();
return Message.error(“修改用户信息失败”);
}

}

//添加用户
@GetMapping("/deleteUser")
@ApiOperation(“删除用户接口”)
@ApiImplicitParams({
@ApiImplicitParam(name = “id”, value = “如:88”,required = true)
})
@PreAuthorize(“hasRole(‘管理员’)”)
@ResponseBody
public AjaxResult deleteUser(@RequestParam(required = true) Long id){
AjaxResult ajaxResult = new AjaxResult();
try {
userService.deleteUser(id);
} catch (Exception e) {
e.printStackTrace();
return new AjaxResult(“删除失败”);
}

 return ajaxResult;

}

@PostMapping(value="/deleteBatchUser")
@ApiOperation(“批量删除用户接口”)
@PreAuthorize(“hasRole(‘管理员’)”)
@ResponseBody
public AjaxResult deleteBatchUser(String ids){
String[] idsArr = ids.split(",");
List list = new ArrayList();
for(int i=0;i list.add(idsArr[i]);
}
try{
userService.batchRemove(list);
return new AjaxResult();
}catch(Exception e){
return new AjaxResult(“批量删除失败”);
}
}

//查询所有角色
public List queryAllRole(){
return roleService.queryAll();
}

//添加用户的角色
@PostMapping("/addUserRole")
@ApiOperation(“添加用户角色接口”)
@ApiImplicitParams({
@ApiImplicitParam(name = “paramMap”, value = “如:{userId:1,[1,2,3,4]]}”)
})
@ResponseBody
public AjaxResult addUserRole(@RequestBody Map paramMap){
AjaxResult ajaxResult = new AjaxResult();
String userId = (String)paramMap.get(“userId”);
List roleIds = (List) paramMap.get(“roleIds”);
try {
//添加用户对应的角色
roleService.addUserRole(userId,roleIds);
return ajaxResult;
}catch (Exception e){
e.printStackTrace();
return new AjaxResult(“保存角色失败”);
}

}

//添加用户
@RequestMapping("/regSaveUser")
@ResponseBody
public Long addTeacher(User user){
System.out.println(“保存用户…”+user);
userService.addUser(user);

 //保存工作流程操作
 IdentityService is = engine.getIdentityService();
 // 添加用户组
 org.activiti.engine.identity.User userInfo = userService.saveUser(is, user.getUsername());
 // 添加用户对应的组关系
 Group stuGroup = new GroupEntityImpl();
 stuGroup.setId("stuGroup");
 Group tGroup = new GroupEntityImpl();
 tGroup.setId("tGroup");
 if(user.getType() == 2) {
     //保存老师组
     userService.saveRel(is, userInfo, tGroup);
 }
 if(user.getType() == 3) {
     //保存学生组
     userService.saveRel(is, userInfo, stuGroup);
 }

 Long userId = user.getId();
 return userId;

}

@RequestMapping(value="/update_pwd",method=RequestMethod.GET)
public String updatePwd(){
return “views/user/update_pwd”;
}

@ResponseBody
@PostMapping("/update_pwd")
public Message updatePassword(@RequestParam(name=“oldPwd”,required=true)String oldPwd,
@RequestParam(name=“newPwd”,required=true)String newPwd){
String username = CommonUtils.getLoginUser().getUsername();
User userByUserName = userService.findUserByUserName(username);
if(userByUserName!=null){
String password = userByUserName.getPassword();
BCryptPasswordEncoder bCryptPasswordEncoder = new BCryptPasswordEncoder();
boolean matches = bCryptPasswordEncoder.matches(oldPwd, password);
if(!matches){
return Message.error(“旧密码不正确”);//true
}
userByUserName.setPassword(bCryptPasswordEncoder.encode(newPwd));

 if(userService.editUserPassword(userByUserName)<=0){
     return Message.error("密码修改失败");
 }

}
return Message.success();
}

@ResponseBody
@PostMapping("/clear_cache")
public Message clearCache(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setHeader(“Cache-Control”,“no-store”);
response.setHeader(“Pragrma”,“no-cache”);
response.setDateHeader(“Expires”,0);
return Message.success();
}
角色控制层：@Controller
public class RoleController {

@Autowired
private IRoleService roleService;

@Autowired
private IPermissionService permissionService;

@PreAuthorize(“hasRole(‘管理员’)”)
@ResponseBody
@RequestMapping("/role/doAdd")
public String doAdd(Role role){
//角色添加
return “ok”;
}
//添加角色
@RequestMapping("/role/addRole")
@PreAuthorize(“hasRole(‘管理员’)”)
@ResponseBody
public AjaxResult addRole(Role role){
System.out.println(“保存角色…”+role);
try {
roleService.saveRole(role);
return new AjaxResult();
} catch (Exception e) {
e.printStackTrace();
return new AjaxResult(“操作失败”);
}
}

@PreAuthorize(“hasRole(‘管理员’)”)
@RequestMapping("/role/index")
public String index(Model model){
List permisisons = permissionService.findAllPermisisons();
model.addAttribute(“permissions”,permisisons);
//返回角色
return “views/role/role_list”;
}

@RequestMapping("/role/listpage")
@ResponseBody
public PageList listpage(RoleQuery roleQuery){
System.out.println(“传递参数:”+roleQuery);
return roleService.listpage(roleQuery);
}

//修改用户editSaveUser
@RequestMapping("/role/editSaveRole")
@ResponseBody
public AjaxResult editSaveRole(Role role){
System.out.println(“修改角色…”+role);
try {
roleService.editSaveRole(role);
return new AjaxResult();
} catch (Exception e) {
e.printStackTrace();
}
return new AjaxResult(“修改失败”);
}

//添加角色
@RequestMapping("/role/deleteRole")
@ResponseBody
public AjaxResult deleteRole(Long id){
System.out.println(“删除角色…”+id);
AjaxResult ajaxResult = new AjaxResult();
try {
roleService.deleteRole(id);
} catch (Exception e) {
e.printStackTrace();
return new AjaxResult(“删除失败”);
}
return ajaxResult;
}

//添加角色权限 addRolePermission
@RequestMapping("/role/addRolePermission")
@ResponseBody
public AjaxResult addRolePermission(@RequestBody Map paramMap){
AjaxResult ajaxResult = new AjaxResult();
String roleId = (String)paramMap.get(“roleId”);
List permissionIds = (List) paramMap.get(“permissionIds”);
try {
//添加角色对应的权限
roleService.addRolePermission(roleId,permissionIds);
return ajaxResult;
}catch (Exception e){
e.printStackTrace();
return new AjaxResult(“保存权限失败”);
}

}

学生管理接口：@RequestMapping("/student")
@Controller
@Api(tags = “学生管理接口”)
public class StudentController {

@Autowired
private IUserService userService;

@Autowired
private ICourseService courseService;

@Autowired
private IClassesService classesService;
@Resource
private ProcessEngine engine;

@Autowired
private IOperaterLogService operaterLogService;

//老师列表
//后台查询学生列表
@RequestMapping("/index")
public String index(Model model){
    //用户首页
    model.addAttribute("courses",courseService.queryAll());
    model.addAttribute("classes",classesService.queryAll());
    return "views/student/student_list";
}

@RequestMapping("/listpage")
@ResponseBody
public PageList listpage(UserQuery userQuery){
    userQuery.setType(3L);//2表示老学生
    return  userService.listpage(userQuery);
}


@PostMapping("/addSaveStu")
@ApiOperation("添加学生接口")
@PreAuthorize("hasRole('管理员')")
@ResponseBody
public Message addSaveStudent(User user){
    if(StringUtils.isEmpty(user.getUsername())){
        return Message.error("请填写用户名");
    }
    if(StringUtils.isEmpty(user.getPassword())){
        return Message.error("请填写密码");
    }
    if(StringUtils.isEmpty(user.getEmail())){
        return Message.error("请填写邮箱");
    }
    if(StringUtils.isEmpty(user.getTel())){
        return Message.error("请填写手机号");
    }
    if(StringUtils.isEmpty(user.getStunum())){
        return Message.error("请填写学号");
    }
    User userByUserName = userService.findUserByUserName(user.getUsername());
    if(userByUserName!=null){
        return Message.error("用户名已存在");
    }
    if(userService.findByStuNum(user.getStunum())!=null){
        return Message.error("该学号已存在");
    }
    user.setType(3);
    if(userService.addUser(user)<=0){
        return Message.error("学生添加失败");
    }
    //保存工作流程操作
    IdentityService is = engine.getIdentityService();
    // 添加用户组
    org.activiti.engine.identity.User userInfo = userService.saveUser(is, user.getUsername());
    // 添加用户对应的组关系
    Group stuGroup = new GroupEntityImpl();
    stuGroup.setId("stuGroup");
    userService.saveRel(is, userInfo, stuGroup);
    operaterLogService.add("添加学生成功,学生名称:"+user.getUsername());
    return Message.success();
}



//修改用户editSaveUser
@PostMapping("/editSaveStu")
@ApiOperation("修改学生接口")
@PreAuthorize("hasRole('管理员')")
@ResponseBody
public Message editSaveStu(User user){
    if(StringUtils.isEmpty(user.getUsername())){
        return Message.error("请填写用户名");
    }
    if(StringUtils.isEmpty(user.getEmail())){
        return Message.error("请填写邮箱");
    }
    if(StringUtils.isEmpty(user.getTel())){
        return Message.error("请填写手机号");
    }
    User userByUserName = userService.findUserByUserName(user.getUsername());
    if(userByUserName!=null){
        if(!userByUserName.getId().equals(user.getId())){
            return Message.error("该用户名已存在");
        }
    }
    try {
        userService.editSaveUser(user);
        operaterLogService.add("编辑学生成功,学生名称:"+user.getUsername());
        return Message.success();
    } catch (Exception e) {
        e.printStackTrace();
        return Message.error("学生编辑失败");
    }

}

//editSaveStuXk
@PostMapping("/editSaveStuXk")
@ApiOperation("修改用户接口")
@ApiImplicitParams({
        @ApiImplicitParam(name = "User", value = "学生选课")
})
@ResponseBody
public AjaxResult editSaveStuXk(User user){
    try {
        userService.editSaveXk(user);
        operaterLogService.add("修改学生选课成功,学生名称:"+user.getUsername());
        return new AjaxResult();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return new AjaxResult("修改失败");
}

Java项目:学生选课管理系统(java+SpringBoot+Mybatis-plus+Thymeleaf+mysql)

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