java项目:学生管理系统(java+springboot+maven+mybatis+vue+mysql)(代码片段)

一、项目简述

本系统功能包括：
学生管理，教师管理，课程管理，成绩管理，系统管理等等。

二、项目运行

环境配置：

Jdk1.8 + Tomcat8.5 + Mysql + HBuilderX（Webstorm也行）+ Eclispe（IntelliJ IDEA,Eclispe,MyEclispe,Sts都支持）。

项目技术：

Springboot + Maven + mybatis+ Vue 等等组成，B/S模式 + Maven管理等等。

用户管理控制器：

/**
 * 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<Role> 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<String,Object> addUser(User user)
        Map<String, Object> 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;
    

    /**
     * 修改用户信息操作
     * @param user
     * @return
     */
    @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<idsArr.length;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<Role> 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;
    

    /**
     * 修改密码页面
     * @return
     */
    @RequestMapping(value="/update_pwd",method=RequestMethod.GET)
    public String updatePwd()
        return "views/user/update_pwd";
    

    /**
     * 修改密码操作
     * @param oldPwd
     * @param newPwd
     * @return
     */
    @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();
    

    /**
     * 清除缓存
     * @param request
     * @param response
     * @return
     */
    @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<Permission> 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");
        

    

权限维护Controller：

/**
 *  权限维护Controller
 */
@RequestMapping("/permission")
@Controller
public class PermissionController 

    @Autowired
    private IPermissionService permissionService;

    @PreAuthorize("hasRole('管理员')")
    @RequestMapping("/index")
    public String index(Model model)
        List<Permission> allPermisisons = permissionService.findAllPermisisons();
        model.addAttribute("permissions",allPermisisons);
        //返回菜单页面
        return "views/permission/permission_list";
    

    //添加顶级菜单 addTopMenu
    @PreAuthorize("hasRole('管理员')")
    @RequestMapping("/addBtnPermisison")
    @ResponseBody
    public AjaxResult addBtnPermission(@RequestBody Permission permission)
        AjaxResult ajaxResult = new AjaxResult();
        try
            //name:xxx,pid:xxx,title:xxx
            permissionService.addBtnPermisison(permission);
            return ajaxResult;
        catch(Exception e)
            e.printStackTrace();
            return new AjaxResult("保存失败");
        
    

    /**
     * 编辑数据操作
     * @param id
     * @return
     */
    @PreAuthorize("hasRole('管理员')")
    @GetMapping("/editPermission")
    @ResponseBody
    public Map<String,Object> editPermission(@RequestParam("id")Long id)
        Map<String, Object> ret = new HashMap<>();
        ret.put("code","-1");
        Permission byId = permissionService.findById(id);
        if(byId==null)
            ret.put("msg","未找到该权限");
            return ret;
        
        ret.put("code",0);
        ret.put("data",byId);
        return ret;
    


    /**
     * 编辑权限数据操作
     * @param permission
     * @return
     */
    @PreAuthorize("hasRole('管理员')")
    @PostMapping("/editPermission")
    @ResponseBody
    public Map<String,Object> editPermission(Permission permission)
        Map<String, Object> ret = new HashMap<>();
        ret.put("code","-1");
        if(StringUtils.isEmpty(permission.getName()))
            ret.put("msg","请填写权限值");
            return ret;
        
        if(StringUtils.isEmpty(permission.getTitle()))
            ret.put("msg","请填写权限名称");
            return ret;
        
        if(permissionService.edit(permission)<=0)
            ret.put("msg","权限编辑失败");
            return ret;
        
        ret.put("code",0);
        return ret;
    

    /**
     * 根据id删除权限
     * @param id
     * @return
     */
    @PreAuthorize("hasRole('管理员')")
    @ResponseBody
    @PostMapping("/deletePermission")
    public Map<String,Object> deletePermission(@RequestParam("id")Long id)
        Map<String, Object> ret = new HashMap<>();
        ret.put("code","-1");
        try
            permissionService.deleteById(id);
        catch (Exception e)
            ret.put("msg","删除失败,存在关联数据");
            return ret;
        
        ret.put("code",0);
        return ret;