迁移 org.joda.time.Duration 到 java.time.Duration

Question

我想把这个基于joda库的java迁移到java.time

import org.joda.time.DateTime;
import org.joda.time.Duration;
import org.joda.time.Instant;

private DateTime createdDate;
private Duration executionTime;
private Instant requestTime;


  public void startTimerProcess() {
    this.requestTime = Instant.now();
  }

  public void endTimerProcess() {
    this.executionTime = new Duration(requestTime, Instant.now());
  }

我试过这个：

import java.time.Duration;
import java.time.Instant;
import java.time.OffsetDateTime;

private OffsetDateTime createdDate;
private Duration executionTime;
private Instant requestTime;


  public void startTimerProcess() {
    this.requestTime = Instant.now();
  }

  public void endTimerProcess() {
    this.executionTime = Duration.of(requestTime.toEpochMilli(), Instant.now());
  }

对于线

Duration.of

我得到错误：

Required type: TemporalUnit
Provided: Instant

你能指导我什么是实施他的迁移的正确方法吗？

Answer 1

如果你想要之间两个瞬间的持续时间，那么你正在寻找

Duration#between(Instant, Instant)

：

public void endTimerProcess() {
  this.executionTime = Duration.between(requestTime, Instant.now());
}