map 转成对象 cookic utf-8字节转成字符串处理

àì夳堔傛蜴生んèń 2022-02-21 00:15 218阅读 0赞

# map转对象方法:  #

1.依赖阿里 fastjson:

<dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>fastjson</artifactId>
        <version>1.1.46.sec01</version>
    </dependency>

//map 转对象 
    public static <T> T parseMap2Object(Map<String, Object> paramMap, Class<T> cls) {
        return JSONObject.parseObject(JSONObject.toJSONString(paramMap), cls);
    
    }

# cookic字节转字符处理: #

Cookie cookie = null;
          try {
      cookie = new Cookie("cartItem", URLEncoder.encode(json, "utf-8")); //转utf-8字节
          } catch (UnsupportedEncodingException e) {
             e.printStackTrace();
         }
    cookie.setMaxAge(60 * 60 * 24 * 7);
    cookie.setPath(request.getContextPath() + "/");//路径
    response.addCookie(cookie);

String value = cookie.getValue();
    value = URLDecoder.decode(value);  //utf-8字节转回字符串

### Map转对象<泛型> ###

public static void main(String[] args) {
        Map<String,Object> map =new HashMap<>();
        map.put("orderType","已完成" );map.put("orderMoney",34.38 );map.put("orderNum","0002-000220201016-000001" );
        map.put("dealType","销售" );map.put("payTypeName","微信" );map.put("payType", 3);
    
        SalesOrder tobean = tobean(map, SalesOrder.class);
        System.out.println(tobean);
    }
    
    
    public static <T> T tobean(Map<String, Object> map, Class<T> clazz) {
        try {
            T bean = clazz.newInstance();
            BeanUtils.populate(bean, map);
            return bean;
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }