小知识点

1. Map有getOrDefault("1","0");取不到取默认值
2. 两个不同对象，属性相同进行赋值转换，使用modelMapper

        
     
      org.modelmapper
         
     
      modelmapper
         
     
      1.1.0
     
    

1. controller请求中BindingResult bindingResult通过bindingResult.hasErrors()判断是否报错，下列模板代码可以学习

/** * 新增房源接口 * @param houseForm * @param bindingResult * @return */@PostMapping("admin/add/house")@ResponseBodypublic ApiResponse addHouse(@Valid @ModelAttribute("form-house-add") HouseForm houseForm, BindingResult bindingResult) {    if (bindingResult.hasErrors()) {        return new ApiResponse(HttpStatus.BAD_REQUEST.value(), bindingResult.getAllErrors().get(0).getDefaultMessage(), null);    }    if (houseForm.getPhotos() == null || houseForm.getCover() == null) {        return ApiResponse.ofMessage(HttpStatus.BAD_REQUEST.value(), "必须上传图片");    }    Map
    
      addressMap = addressService.findCityAndRegion(houseForm.getCityEnName(), houseForm.getRegionEnName());    if (addressMap.keySet().size() != 2) {        return ApiResponse.ofStatus(ApiResponse.Status.NOT_VALID_PARAM);    }    ServiceResult
     
       result = houseService.save(houseForm);    if (result.isSuccess()) {        return ApiResponse.ofSuccess(result.getResult());    }    return ApiResponse.ofSuccess(ApiResponse.Status.NOT_VALID_PARAM);}
     
    

@NotNull(message = "大标题不允许为空!")@Size(min = 1, max = 30, message = "标题长度必须在1~30之间")private String title;@NotNull(message = "必须填写卧室数量")@Min(value = 1, message = "非法的卧室数量")private Integer room;@NotNull(message = "必须选中一个租赁方式")@Min(value = 0)@Max(value = 1)private Integer rentWay;@Size(max = 255)private String description;

1. redis管理session配置

@Configuration@EnableRedisHttpSession(maxInactiveIntervalInSeconds = 86400)public class RedisSessionConfig {    @Bean    public RedisTemplate
    
      redisTemplate(RedisConnectionFactory factory) {        return new StringRedisTemplate(factory);    }}
    

    
        
     
      org.springframework.session
         
     
      spring-session
     
    
        
     
      org.springframework.boot
         
     
      spring-boot-starter-data-redis
     
    

# session会话存储类型spring.session.store-type=redis