springboot封装JsonUtil,CookieUtil工具类代码实例

public class JsonUtil {
  private static ObjectMapper objectMapper = new ObjectMapper();

  public static String objectToString(Object object) throws JsonProcessingException {
    return objectMapper.writeValueAsString(object);
  }

  public static  T stringToObject(String json,Class object) throws IOException {
    return objectMapper.readValue(json,object);
  }
}

public class COOKIEUtil {
  public static String getCOOKIE(HttpServletRequest request, String COOKIEName){

    COOKIE[] COOKIEs = request.getCOOKIEs();
    if(COOKIEs != null){
      for(COOKIE COOKIE : COOKIEs){
        if(COOKIE.getName().equals(COOKIEName)){
          return COOKIE.getValue();
        }
      }
    }

    return null;
  }

  public static void setCOOKIE(HttpServletResponse response, String COOKIEName, String value,int COOKIEMaxAge){
    COOKIE COOKIE = new COOKIE(COOKIEName,value);
    COOKIE.setPath("/");
    COOKIE.setMaxAge(COOKIEMaxAge);
    response.addCOOKIE(COOKIE);
  }

  public static void deleteCOOKIE(HttpServletResponse response, String COOKIEName){
    setCOOKIE(response,COOKIEName,null,0);
  }
}