基于SSM的后台管理系统脚手架（一）

项目简述：本项目是基于SSM的后台管理系统脚手架，面向接口编程。实现了菜单管理、角色管理、用户管理、日志管理，分页查看，不同的角色分配相应的权限，用户分配不同的角色登录后显示相应被分配的功能，使用了拦截器编程。

技术框架：SSM+easyUI+ajax+jsp

1.用户登录及日志管理

UserController

@RequestMapping("/admin/user")
@Controller
public class UserController {

	@Autowired
	private UserService userService;
	@Autowired
	private RoleService roleService;
	
	/**
	 * 用户列表页面
	 * @param model
	 * @return
	 */
	@RequestMapping(value="/list",method=RequestMethod.GET)
	public ModelAndView list(ModelAndView model){
		Map queryMap = new HashMap();
		model.addObject("roleList", roleService.findList(queryMap));
		model.setViewName("user/list");
		return model;
	}
	
	/**
	 * 获取用户列表
	 * @param page
	 * @param username
	 * @param roleId
	 * @param sex
	 * @return
	 */
	@RequestMapping(value="/list",method=RequestMethod.POST)
	@ResponseBody
	public Map getList(Page page,
			@RequestParam(name="username",required=false,defaultValue="") String username,
			@RequestParam(name="roleId",required=false) Long roleId,
			@RequestParam(name="sex",required=false) Integer sex
			){
		Map ret = new HashMap();
		Map queryMap = new HashMap();
		queryMap.put("username", username);
		queryMap.put("roleId", roleId);
		queryMap.put("sex", sex);
		queryMap.put("offset", page.getOffset());
		queryMap.put("pageSize", page.getRows());
		ret.put("rows", userService.findList(queryMap));
		ret.put("total", userService.getTotal(queryMap));
		return ret;
	}
	
	/**
	 * 添加用户
	 * @param user
	 * @return
	 */
	@RequestMapping(value="/add",method=RequestMethod.POST)
	@ResponseBody
	public Map add(User user){
		Map ret = new HashMap();
		if(user == null){
			ret.put("type", "error");
			ret.put("msg", "请填写正确的用户信息！");
			return ret;
		}
		if(StringUtils.isEmpty(user.getUsername())){
			ret.put("type", "error");
			ret.put("msg", "请填写用户名！");
			return ret;
		}
		if(StringUtils.isEmpty(user.getPassword())){
			ret.put("type", "error");
			ret.put("msg", "请填写密码！");
			return ret;
		}
		if(user.getRoleId() == null){
			ret.put("type", "error");
			ret.put("msg", "请选择所属角色！");
			return ret;
		}
		if(isExist(user.getUsername(), 0l)){
			ret.put("type", "error");
			ret.put("msg", "该用户名已经存在，请重新输入！");
			return ret;
		}
		if(userService.add(user) <= 0){
			ret.put("type", "error");
			ret.put("msg", "用户添加失败，请联系管理员！");
			return ret;
		}
		ret.put("type", "success");
		ret.put("msg", "角色添加成功！");
		return ret;
	}
	
	/**
	 * 编辑用户
	 * @param user
	 * @return
	 */
	@RequestMapping(value="/edit",method=RequestMethod.POST)
	@ResponseBody
	public Map edit(User user){
		Map ret = new HashMap();
		if(user == null){
			ret.put("type", "error");
			ret.put("msg", "请填写正确的用户信息！");
			return ret;
		}
		if(StringUtils.isEmpty(user.getUsername())){
			ret.put("type", "error");
			ret.put("msg", "请填写用户名！");
			return ret;
		}
//		if(StringUtils.isEmpty(user.getPassword())){
//			ret.put("type", "error");
//			ret.put("msg", "请填写密码！");
//			return ret;
//		}
		if(user.getRoleId() == null){
			ret.put("type", "error");
			ret.put("msg", "请选择所属角色！");
			return ret;
		}
		if(isExist(user.getUsername(), user.getId())){
			ret.put("type", "error");
			ret.put("msg", "该用户名已经存在，请重新输入！");
			return ret;
		}
		if(userService.edit(user) <= 0){
			ret.put("type", "error");
			ret.put("msg", "用户添加失败，请联系管理员！");
			return ret;
		}
		ret.put("type", "success");
		ret.put("msg", "角色添加成功！");
		return ret;
	}
	
	/**
	 * 批量删除用户
	 * @param ids
	 * @return
	 */
	@RequestMapping(value="/delete",method=RequestMethod.POST)
	@ResponseBody
	public Map delete(String ids){
		Map ret = new HashMap();
		if(StringUtils.isEmpty(ids)){
			ret.put("type", "error");
			ret.put("msg", "选择要删除的数据！");
			return ret;
		}
		if(ids.contains(",")){
			ids = ids.substring(0,ids.length()-1);
		}
		if(userService.delete(ids) <= 0){
			ret.put("type", "error");
			ret.put("msg", "用户删除失败，请联系管理员！");
			return ret;
		}
		ret.put("type", "success");
		ret.put("msg", "用户删除成功！");
		return ret;
	}
	
	/**
	 * 上传图片
	 * @param photo
	 * @param request
	 * @return
	 */
	@RequestMapping(value="/upload_photo",method=RequestMethod.POST)
	@ResponseBody
	public Map uploadPhoto(MultipartFile photo,HttpServletRequest request){
		Map ret = new HashMap();
		if(photo == null){
			ret.put("type", "error");
			ret.put("msg", "选择要上传的文件！");
			return ret;
		}
		if(photo.getSize() > 1024*1024*1024){
			ret.put("type", "error");
			ret.put("msg", "文件大小不能超过10M！");
			return ret;
		}
		//获取文件后缀
		String suffix = photo.getOriginalFilename().substring(photo.getOriginalFilename().lastIndexOf(".")+1,photo.getOriginalFilename().length());
		if(!"jpg,jpeg,gif,png".toUpperCase().contains(suffix.toUpperCase())){
			ret.put("type", "error");
			ret.put("msg", "请选择jpg,jpeg,gif,png格式的图片！");
			return ret;
		}
		String savePath = request.getServletContext().getRealPath("/") + "/resources/upload/";
		File savePathFile = new File(savePath);
		if(!savePathFile.exists()){
			//若不存在改目录，则创建目录
			savePathFile.mkdir();
		}
		String filename = new Date().getTime()+"."+suffix;
		try {
			//将文件保存至指定目录
			photo.transferTo(new File(savePath+filename));
		}catch (Exception e) {
			// TODO Auto-generated catch block
			ret.put("type", "error");
			ret.put("msg", "保存文件异常！");
			e.printStackTrace();
			return ret;
		}
		ret.put("type", "success");
		ret.put("msg", "用户成功！");
		ret.put("filepath",request.getServletContext().getContextPath() + "/resources/upload/" + filename );
		return ret;
	}
	/**
	 * 判断该用户名是否存在
	 * @param username
	 * @param id
	 * @return
	 */
	private boolean isExist(String username,Long id){
		User user = userService.findByUsername(username);
		if(user == null)return false;
		if(user.getId().longValue() == id.longValue())return false;
		return true;
	}

@RequestMapping("/admin/log")
@Controller
public class LogController {

	@Autowired
	private LogService logService;
	
	/**
	 * 日志列表页面
	 * @param model
	 * @return
	 */
	@RequestMapping(value="/list",method=RequestMethod.GET)
	public ModelAndView list(ModelAndView model){
		model.setViewName("log/list");
		return model;
	}
	
	/**
	 * 获取日志列表
	 * @param page
	 * @param content
	 * @param roleId
	 * @param sex
	 * @return
	 */
	@RequestMapping(value="/list",method=RequestMethod.POST)
	@ResponseBody
	public Map getList(Page page,
			//@RequestParam(name="content",required=false,defaultValue="") 
	String content
			){
		Map ret = new HashMap();
		Map queryMap = new HashMap();
		queryMap.put("content", content);
		queryMap.put("offset", page.getOffset());
		queryMap.put("pageSize", page.getRows());
		ret.put("rows", logService.findList(queryMap));
		ret.put("total", logService.getTotal(queryMap));
		return ret;
	}
	
	/**
	 * 添加日志
	 * @param user
	 * @return
	 */
	@RequestMapping(value="/add",method=RequestMethod.POST)
	@ResponseBody
	public Map add(Log log){
		Map ret = new HashMap();
		if(log == null){
			ret.put("type", "error");
			ret.put("msg", "请填写正确的日志信息！");
			return ret;
		}
		if(StringUtils.isEmpty(log.getContent())){
			ret.put("type", "error");
			ret.put("msg", "请填写日志内容！");
			return ret;
		}
		log.setCreateTime(new Date());
		if(logService.add(log) <= 0){
			ret.put("type", "error");
			ret.put("msg", "日志添加失败，请联系管理员！");
			return ret;
		}
		ret.put("type", "success");
		ret.put("msg", "日志添加成功！");
		return ret;
	}
	
	
	
	/**
	 * 批量删除日志
	 * @param ids
	 * @return
	 */
	@RequestMapping(value="/delete",method=RequestMethod.POST)
	@ResponseBody
	public Map delete(String ids){
		Map ret = new HashMap();
		if(StringUtils.isEmpty(ids)){
			ret.put("type", "error");
			ret.put("msg", "选择要删除的数据！");
			return ret;
		}
		if(ids.contains(",")){
			ids = ids.substring(0,ids.length()-1);
		}
		if(logService.delete(ids) <= 0){   
			ret.put("type", "error");
			ret.put("msg", "日志删除失败，请联系管理员！");
			return ret;
		}
		ret.put("type", "success");
		ret.put("msg", "日志删除成功！");
		return ret;
	}
}