主要功能模块

1.用户模块管理：用户登录、用户注册、用户的查询、添加、删除操作、

2.客户信息管理：.客户列表的展示、添加、修改、删除操作、

3.供应商管理：供应商详情列表的查看、添加、删除等操作、

4.退货管理和退货查询

5.公告信息管理：公告信息的查看、添加、修改、删除操作、

6.角色管理：角色查询、添加、删除、

7.系统管理、菜单管理以及权限控制

8.管理员信息管理：管理员信息的查看、修改

给大家截一部分效果图:

主要技术：springboot   Java、springmvc  mysql  layui  jquery mybatis

用户信息控制层：

/**
 * <p>
 *  前端控制器
 * </p>
 *
 */
@RestController
@RequestMapping("/user")
public class UserController {
	
	@Autowired
	private UserService userService;
	
	@Autowired
	private DeptService deptService;
	
	@Autowired
	private RoleService roleService;
	
	/**
	 * 用户全查询
	 */
	@RequestMapping("loadAllUser")
	public DataGridView loadAllUser(UserVo userVo) {
		IPage<User> page=new Page<>(userVo.getPage(), userVo.getLimit());
		QueryWrapper<User> queryWrapper=new QueryWrapper<>();
		queryWrapper.eq(StringUtils.isNotBlank(userVo.getName()), "loginname", userVo.getName()).or().eq(StringUtils.isNotBlank(userVo.getName()), "name", userVo.getName());
		queryWrapper.eq(StringUtils.isNotBlank(userVo.getAddress()), "address", userVo.getAddress());
		queryWrapper.eq("type", Constast.USER_TYPE_NORMAL);//查询系统用户
		queryWrapper.eq(userVo.getDeptid()!=null, "deptid",userVo.getDeptid());
		this.userService.page(page, queryWrapper);
		
		
		System.out.println(userService.getClass().getSimpleName());
		List<User> list = page.getRecords();
		for (User user : list) {
			Integer deptid = user.getDeptid();
			if(deptid!=null) {
				Dept one =deptService.getById(deptid);
				user.setDeptname(one.getTitle());
			}
			Integer mgr = user.getMgr();
			if(mgr!=null) {
				User one = this.userService.getById(mgr);
				user.setLeadername(one.getName());
			}
		}
		
		return new DataGridView(page.getTotal(), list);
		
	}
	
	

	/**
	 * 加载最大的排序码
	 * @param deptVo
	 * @return
	 */
	@RequestMapping("loadUserMaxOrderNum")
	public Map<String,Object> loadUserMaxOrderNum(){
		Map<String, Object> map=new HashMap<String, Object>();
		
		QueryWrapper<User> queryWrapper=new QueryWrapper<>();
		queryWrapper.orderByDesc("ordernum");
		IPage<User> page=new Page<>(1, 1);
		List<User> list = this.userService.page(page, queryWrapper).getRecords();
		if(list.size()>0) {
			map.put("value", list.get(0).getOrdernum()+1);
		}else {
			map.put("value", 1);
		}
		return map;
	}
	
	
	/**
	 * 根据部门ID查询用户
	 */
	@RequestMapping("loadUsersByDeptId")
	public DataGridView loadUsersByDeptId(Integer deptid) {
		QueryWrapper<User> queryWrapper=new QueryWrapper<>();
		queryWrapper.eq(deptid!=null, "deptid", deptid);
		queryWrapper.eq("available", Constast.AVAILABLE_TRUE);
		queryWrapper.eq("type", Constast.USER_TYPE_NORMAL);
		List<User> list = this.userService.list(queryWrapper);
		return new DataGridView(list);
	}
	
	
	/**
	 * 把用户名转成拼音
	 */
	@RequestMapping("changeChineseToPinyin")
	public Map<String,Object> changeChineseToPinyin(String username){
		 Map<String,Object> map=new HashMap<>();
		 if(null!=username) {
			 map.put("value", PinyinUtils.getPingYin(username));
		 }else {
			 map.put("value", "");
		 }
		 return map;
	}
	
	/**
	 * 添加用户
	 */
	@RequestMapping("addUser")
	public ResultObj addUser(UserVo userVo) {
		try {
			userVo.setType(Constast.USER_TYPE_NORMAL);//设置类型
			userVo.setHiredate(new Date());
			String salt=IdUtil.simpleUUID().toUpperCase();
			userVo.setSalt(salt);//设置盐
			userVo.setPwd(new Md5Hash(Constast.USER_DEFAULT_PWD, salt, 2).toString());//设置密码
			this.userService.save(userVo);
			return ResultObj.ADD_SUCCESS;
		} catch (Exception e) {
			e.printStackTrace();
			return ResultObj.ADD_ERROR;
		}
	}

	
	/**
	 * 根据用户ID查询一个用户
	 */
	@RequestMapping("loadUserById")
	public DataGridView loadUserById(Integer id) {
		return new DataGridView(this.userService.getById(id));
	}
	
	/**
	 * 修改用户
	 */
	@RequestMapping("updateUser")
	public ResultObj updateUser(UserVo userVo) {
		try {
			this.userService.updateById(userVo);
			return ResultObj.UPDATE_SUCCESS;
		} catch (Exception e) {
			e.printStackTrace();
			return ResultObj.UPDATE_ERROR;
		}
	}

	/**
	 * 删除用户
	 */
	@RequestMapping("deleteUser")
	public ResultObj deleteUser(Integer id) {
		try {
			this.userService.removeById(id);
			return ResultObj.DELETE_SUCCESS;
		} catch (Exception e) {
			e.printStackTrace();
			return ResultObj.DELETE_ERROR;
		}
	}
	/**
	 * 重置用户密码
	 */
	@RequestMapping("resetPwd")
	public ResultObj resetPwd(Integer id) {
		try {
			User user=new User();
			user.setId(id);
			String salt=IdUtil.simpleUUID().toUpperCase();
			user.setSalt(salt);//设置盐
			user.setPwd(new Md5Hash(Constast.USER_DEFAULT_PWD, salt, 2).toString());//设置密码
			this.userService.updateById(user);
			return ResultObj.RESET_SUCCESS;
		} catch (Exception e) {
			e.printStackTrace();
			return ResultObj.RESET_ERROR;
		}
	}
	
	
	/**
	 * 根据用户ID查询角色并选中已拥有的角色
	 */
	@RequestMapping("initRoleByUserId")
	public DataGridView initRoleByUserId(Integer id) {
		//1,查询所有可用的角色
		QueryWrapper<Role> queryWrapper=new QueryWrapper<>();
		queryWrapper.eq("available", Constast.AVAILABLE_TRUE);
		List<Map<String, Object>> listMaps = this.roleService.listMaps(queryWrapper);
		
		//2,查询当前用户拥有的角色ID集合
		List<Integer> currentUserRoleIds=this.roleService.queryUserRoleIdsByUid(id);
		for (Map<String, Object> map : listMaps) {
			Boolean LAY_CHECKED=false;
			Integer roleId=(Integer) map.get("id");
			for (Integer rid : currentUserRoleIds) {
				if(rid==roleId) {
					LAY_CHECKED=true;
					break;
				}
			}
			map.put("LAY_CHECKED", LAY_CHECKED);
		}
		return new DataGridView(Long.valueOf(listMaps.size()), listMaps);
	}
	
	/**
	 * 保存用户和角色的关系
	 */
	@RequestMapping("saveUserRole")
	public ResultObj saveUserRole(Integer uid,Integer[] ids) {
		try {
			this.userService.saveUserRole(uid,ids);
			return ResultObj.DISPATCH_SUCCESS;
		} catch (Exception e) {
			e.printStackTrace();
			return ResultObj.DISPATCH_ERROR;
		}
		
	}
}

系统控制层：

@Controller
@RequestMapping("sys")
public class SystemController {
	
	/**
	 * 跳转到登陆页面
	 */
	@RequestMapping("toLogin")
	public String toLogin() {
		return "system/index/login";
	}
	
	/**
	 * 跳转到首页
	 */
	@RequestMapping("index")
	public String index() {
		return "system/index/index";
	}
	
	/**
	 * 跳转到工作台
	 */
	@RequestMapping("toDeskManager")
	public String toDeskManager() {
		return "system/index/deskManager";
	}
	
	/**
	 * 跳转到日志管理
	 * 
	 */
	@RequestMapping("toLoginfoManager")
	public String toLoginfoManager() {
		return "system/loginfo/loginfoManager";
	}
	
	/**
	 * 跳转到公告管理
	 * 
	 */
	@RequestMapping("toNoticeManager")
	public String toNoticeManager() {
		return "system/notice/noticeManager";
	}
	
	
	/**
	 * 跳转到部门管理
	 * 
	 */
	@RequestMapping("toDeptManager")
	public String toDeptManager() {
		return "system/dept/deptManager";
	}
	
	/**
	 * 跳转到部门管理-left
	 * 
	 */
	@RequestMapping("toDeptLeft")
	public String toDeptLeft() {
		return "system/dept/deptLeft";
	}
	
	
	/**
	 * 跳转到部门管理--right
	 * 
	 */
	@RequestMapping("toDeptRight")
	public String toDeptRight() {
		return "system/dept/deptRight";
	}
	
	/**
	 * 跳转到菜单管理
	 * 
	 */
	@RequestMapping("toMenuManager")
	public String toMenuManager() {
		return "system/menu/menuManager";
	}
	
	/**
	 * 跳转到菜单管理-left
	 * 
	 */
	@RequestMapping("toMenuLeft")
	public String toMenuLeft() {
		return "system/menu/menuLeft";
	}
	
	
	/**
	 * 跳转到菜单管理--right
	 * 
	 */
	@RequestMapping("toMenuRight")
	public String toMenuRight() {
		return "system/menu/menuRight";
	}
	
	/**
	 * 跳转到权限管理
	 * 
	 */
	@RequestMapping("toPermissionManager")
	public String toPermissionManager() {
		return "system/permission/permissionManager";
	}
	
	/**
	 * 跳转到权限管理-left
	 * 
	 */
	@RequestMapping("toPermissionLeft")
	public String toPermissionLeft() {
		return "system/permission/permissionLeft";
	}
	
	
	/**
	 * 跳转到权限管理--right
	 * 
	 */
	@RequestMapping("toPermissionRight")
	public String toPermissionRight() {
		return "system/permission/permissionRight";
	}
	
	/**
	 * 跳转到角色管理
	 * 
	 */
	@RequestMapping("toRoleManager")
	public String toRoleManager() {
		return "system/role/roleManager";
	}
	

	/**
	 * 跳转到用户管理
	 * 
	 */
	@RequestMapping("toUserManager")
	public String toUserManager() {
		return "system/user/userManager";
	}
	/**
	 * 跳转到缓存管理
	 * 
	 */
	@RequestMapping("toCacheManager")
	public String toCacheManager() {
		return "system/cache/cacheManager";
	}
	
	
	
}

部门控制层：

/**
 * <p>
 *  前端控制器
 * </p>
 *
 */
@RestController
@RequestMapping("/dept")
public class DeptController {

	@Autowired
	private DeptService deptService;
	
	
	
	/**
	 * 加载部门管理左边的部门树的json
	 */
	@RequestMapping("loadDeptManagerLeftTreeJson")
	public DataGridView loadDeptManagerLeftTreeJson(DeptVo deptVo) {
		List<Dept> list = this.deptService.list();
		List<TreeNode> treeNodes=new ArrayList<>();
		for (Dept dept : list) {
			Boolean spread=dept.getOpen()==1?true:false;
			treeNodes.add(new TreeNode(dept.getId(), dept.getPid(), dept.getTitle(), spread));
		}
		return new DataGridView(treeNodes);
	}
	
	/**
	 * 查询
	 */
	@RequestMapping("loadAllDept")
	public DataGridView loadAllDept(DeptVo deptVo) {
		IPage<Dept> page=new Page<>(deptVo.getPage(), deptVo.getLimit());
		QueryWrapper<Dept> queryWrapper=new QueryWrapper<>();
		queryWrapper.like(StringUtils.isNotBlank(deptVo.getTitle()), "title", deptVo.getTitle());
		queryWrapper.like(StringUtils.isNotBlank(deptVo.getAddress()), "address", deptVo.getAddress());
		queryWrapper.like(StringUtils.isNotBlank(deptVo.getRemark()), "remark", deptVo.getRemark());
		queryWrapper.eq(deptVo.getId()!=null, "id", deptVo.getId()).or().eq(deptVo.getId()!=null,"pid", deptVo.getId());
		queryWrapper.orderByAsc("ordernum");
		this.deptService.page(page, queryWrapper);
		return new DataGridView(page.getTotal(), page.getRecords());
	}
	
	/**
	 * 加载最大的排序码
	 * @param deptVo
	 * @return
	 */
	@RequestMapping("loadDeptMaxOrderNum")
	public Map<String,Object> loadDeptMaxOrderNum(){
		Map<String, Object> map=new HashMap<String, Object>();
		
		QueryWrapper<Dept> queryWrapper=new QueryWrapper<>();
		queryWrapper.orderByDesc("ordernum");
		IPage<Dept> page=new Page<>(1, 1);
		List<Dept> list = this.deptService.page(page, queryWrapper).getRecords();
		if(list.size()>0) {
			map.put("value", list.get(0).getOrdernum()+1);
		}else {
			map.put("value", 1);
		}
		return map;
	}
	
	
	/**
	 * 添加
	 * @param deptVo
	 * @return
	 */
	@RequestMapping("addDept")
	public ResultObj addDept(DeptVo deptVo) {
		try {
			deptVo.setCreatetime(new Date());
			this.deptService.save(deptVo);
			return ResultObj.ADD_SUCCESS;
		} catch (Exception e) {
			e.printStackTrace();
			return ResultObj.ADD_ERROR;
		}
	}
	

	/**
	 * 修改
	 * @param deptVo
	 * @return
	 */
	@RequestMapping("updateDept")
	public ResultObj updateDept(DeptVo deptVo) {
		try {
			this.deptService.updateById(deptVo);
			return ResultObj.UPDATE_SUCCESS;
		} catch (Exception e) {
			e.printStackTrace();
			return ResultObj.UPDATE_ERROR;
		}
	}
	
	
	/**
	 * 查询当前的ID的部门有没有子部门
	 */
	@RequestMapping("checkDeptHasChildrenNode")
	public Map<String,Object> checkDeptHasChildrenNode(DeptVo deptVo){
		Map<String, Object> map=new HashMap<String, Object>();
		
		QueryWrapper<Dept> queryWrapper=new QueryWrapper<>();
		queryWrapper.eq("pid", deptVo.getId());
		List<Dept> list = this.deptService.list(queryWrapper);
		if(list.size()>0) {
			map.put("value", true);
		}else {
			map.put("value", false);
		}
		return map;
	}
	
	/**
	 * 删除
	 * @param deptVo
	 * @return
	 */
	@RequestMapping("deleteDept")
	public ResultObj deleteDept(DeptVo deptVo) {
		try {
			this.deptService.removeById(deptVo.getId());
			return ResultObj.DELETE_SUCCESS;
		} catch (Exception e) {
			e.printStackTrace();
			return ResultObj.DELETE_ERROR;
		}
	}
}

供应商控制层：

/**
 * <p>
 *  前端控制器
 * </p>
 *
 */
@RestController
@RequestMapping("/provider")
public class ProviderController {

	@Autowired
	private ProviderService providerService;

	/**
	 * 查询
	 */
	@RequestMapping("loadAllProvider")
	public DataGridView loadAllProvider(ProviderVo providerVo) {
		IPage<Provider> page = new Page<>(providerVo.getPage(), providerVo.getLimit());
		QueryWrapper<Provider> queryWrapper = new QueryWrapper<>();
		queryWrapper.like(StringUtils.isNotBlank(providerVo.getProvidername()), "providername",
				providerVo.getProvidername());
		queryWrapper.like(StringUtils.isNotBlank(providerVo.getPhone()), "phone", providerVo.getPhone());
		queryWrapper.like(StringUtils.isNotBlank(providerVo.getConnectionperson()), "connectionperson",
				providerVo.getConnectionperson());
		this.providerService.page(page, queryWrapper);
		return new DataGridView(page.getTotal(), page.getRecords());
	}

	/**
	 * 添加
	 */
	@RequestMapping("addProvider")
	public ResultObj addProvider(ProviderVo providerVo) {
		try {
			this.providerService.save(providerVo);
			return ResultObj.ADD_SUCCESS;
		} catch (Exception e) {
			e.printStackTrace();
			return ResultObj.ADD_ERROR;
		}
	}

	/**
	 * 修改
	 */
	@RequestMapping("updateProvider")
	public ResultObj updateProvider(ProviderVo providerVo) {
		try {
			this.providerService.updateById(providerVo);
			return ResultObj.UPDATE_SUCCESS;
		} catch (Exception e) {
			e.printStackTrace();
			return ResultObj.UPDATE_ERROR;
		}
	}

	/**
	 * 删除
	 */
	@RequestMapping("deleteProvider")
	public ResultObj deleteProvider(Integer id) {
		try {
			this.providerService.removeById(id);
			return ResultObj.DELETE_SUCCESS;
		} catch (Exception e) {
			e.printStackTrace();
			return ResultObj.DELETE_ERROR;
		}
	}

	/**
	 * 批量删除
	 */
	@RequestMapping("batchDeleteProvider")
	public ResultObj batchDeleteProvider(ProviderVo providerVo) {
		try {
			Collection<Serializable> idList = new ArrayList<Serializable>();
			for (Integer id : providerVo.getIds()) {
				idList.add(id);
			}
			this.providerService.removeByIds(idList);
			return ResultObj.DELETE_SUCCESS;
		} catch (Exception e) {
			e.printStackTrace();
			return ResultObj.DELETE_ERROR;
		}
	}
	
	
	/**
	 * 加载所有可用的供应商
	 */
	@RequestMapping("loadAllProviderForSelect")
	public DataGridView loadAllProviderForSelect() {
		QueryWrapper<Provider> queryWrapper=new QueryWrapper<>();
		queryWrapper.eq("available", Constast.AVAILABLE_TRUE);
		List<Provider> list = this.providerService.list(queryWrapper);
		return new DataGridView(list);
	}
}