重构: 返回指定类型的值且有默认值

main.md

1. 重构之前的代码

public void setScorePeriod(String value){
  set(SCORE_PERIOD, value);
}
public String getScorePeriod(){
  return get(SCORE_PERIOD);
}

代码调用

String scoreLimitNumber = scoreCfgService.getScoreLimitNumber();
String scorePeriod = scoreCfgService.getScorePeriod();
if(!StringUtils.isBlank(scoreLimitNumber) && !StringUtils.isBlank(scorePeriod)) {
    LocalDateTime localDateTime=LocalDateTime.now();
    localDateTime.plusDays(Integer.parseInt(scoreLimitNumber)+Integer.parseInt(scorePeriod));		
    expireTime = Timestamp.valueOf(localDateTime);
}

2. 重构之后的代码

public void setScorePeriod(Integer value){
		set(SCORE_PERIOD, value,Integer.class);
}
// 返回指定类型，并且有默认值
public Integer getScorePeriod(){
  return get(SCORE_PERIOD,Integer.class,1);
}

代码调用

Integer scoreLimitNumber = scoreCfgService.getScoreLimitNumber();
Integer scorePeriod = scoreCfgService.getScorePeriod();
LocalDateTime localDateTime=LocalDateTime.now();
localDateTime.plusDays(Integer.parseInt(scoreLimitNumber)+Integer.parseInt(scorePeriod));		
expireTime = Timestamp.valueOf(localDateTime);