【SSM】【4】前端后端数据流转

前后端数据流转图：

业务流转图

前端控制器接受用户请求响应

        doJsonRequest("/ursuser/login.json", json, function (data) {
            if (getUrlParam("session") == 1) {
                history.back();
            } else {
                if (data.msgCode == 10007) {
                    openDiv("password_edit.html", "edit", function () {
                        $("#alert").append("初次登录请修改密码");
                    });
                }
                if (data.msgCode == 10004) {
                    window.location.href = "index.html"
                }
            }
        }, "POST");

根据url查找controller(handle)：由注解@RequestMapping指定url

 @RequestMapping(value = "/login.json", method = {RequestMethod.POST,
            RequestMethod.GET}, produces = "application/json;charset=UTF-8")
    public
    @ResponseBody
    Object login(@RequestBody UrsUserQuery ursUserQuery, HttpServletRequest request, HttpServletResponse httpServletResponse, HttpSession session) throws Exception {
        //update-20180614-LuoLiang-添加查询所属机构
        String sql = "select uu.*,ur.role_id,ur.role_desc,regexp_replace(tt.comname,'^\\d+','') as comname from t_urs_user uu " +
                "left join t_urs_user_role uur on uur.user_id=uu.user_id " +
                "left join t_urs_role ur on ur.role_id=uur.role_id " +
                "left join v_pub_company tt on substr(uu.comcode,0,8) = substr(tt.comcode,0,8) " +
                "where uu.enable='1' and ur.enable='1' and uu.user_id='%s' and uu.user_password='%s'";
        sql = String.format(sql, ursUserQuery.getUserId(), MD5Util.MD5(ursUserQuery.getUserPassword(), ""));
        Object object = commonServiceImp.find(sql);
        if (object != null) {
            Map<String, Object> ursUser = (Map<String, Object>) object;
            Object obj = ursUser.get("COMCODE");
            if (obj != null) {
                String comcode = String.valueOf(obj);
                if (comcode.length() > 6) {
                    ursUser.put("COMCODE", comcode.substring(0, 6));
                }
            }
            //ursUser.put("M_PASSPORT", CognosUtil.getPassportId());
            String ursUserStr = JsonUtil.toJson(ursUser);
            LOGGER.info("{}登录成功", ursUserStr);
            logLoginServiceImp.loginlog(ursUserQuery.getUserId(), request.getRemoteAddr());
            ursUserStr = URLEncoder.encode(ursUserStr, CharEncoding.UTF_8);
            CookieUtil.addCookie(httpServletResponse, CookieKeyConstant.USER_KEY, ursUserStr);
            session.setAttribute("user_session", ursUser);
            if (ursUser.get("DESCRIPTION") == null) {
                return new RestBean(MsgCodeConstant.MUST_EDITPASSWORD);
            }
            return new RestBean(MsgCodeConstant.LOGIN_SUCCESS);
        } else {
            throw new RestException(-1, "账户名或密码错误");
        }
    }

返回json：@ResponseBody会返回一个json串，将返回的数值直接返回给HTTP Response Body，通过Ajax异步传值，前台会的到返回的HTTP Response Body 也就是就送串

【SSM】【4】前端后端数据流转

猜你喜欢