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日志

莹夜 ·

虚度光阴的代价，就只能是被时间裹挟着前进了吗？
还能有时间去做好准备吗？现在来说，有点不甘心啊。

莹夜 ·

ubuntu 20.04使用netplan添加he的ipv6通道

network:
  version: 2
  tunnels:
    he-ipv6:
      mode: sit
      remote: endpoint服务器ip
      local: 本机ip
      addresses:
        - "address"
      gateway6: gateway
莹夜 ·

使用com.gluonhq:gluonfx-maven-plugin插件生成exe文件报以下错误。

java.lang.UnsatisfiedLinkError: no awt in java.library.path

解决方案：从JAVA_HOME下复制awt.dll、java.dll、server/jvm.dll这三个文件到exe所在的文件夹。
但接下来一般会伴随着java.lang.NoSuchFieldError …，还是不去使用awt/swing相关的内容吧。

莹夜 ·

java时区转换 String -> Date -> Calendar -> Instant -> LocalDateTime，用起来感觉很麻烦。

String uploadDate = "2023-01-20T04:46:00+00:00";
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssXXX");
Calendar calendar = Calendar.getInstance();
calendar.setTime(sdf.parse(uploadDate));
LocalDateTime localDateTime = LocalDateTime.ofInstant(calendar.toInstant(), ZoneId.of("Asia/Tokyo"));
System.out.println(localDateTime.getHour());
莹夜 ·

Lapce一个文本编辑器，打开速度很快，可以像VSCode那样安装众多语言的开发插件，且同样支持远程开发。

Windows版本分为单文件版和安装版。

莹夜 · 
<!DOCTYPE html>
<html lang="zh-CN">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>PaperMC版本选择</title>
  <style type="text/css">
    * {
      box-sizing: border-box;
      padding: 0;
      margin: 0;
    }

    select {
      outline: none;
      width: 110px;
    }

    #app,
    #statusText,
    #downloadSlot {
      margin-top: 20px;
      text-align: center;
    }
  </style>
</head>

<body>
  <div id="app">
    <div id="version">
      <span>选择游戏版本: </span>
      <select id="versionsSlot"></select>
    </div>
    <div id="build">
      <span>选择文件版本: </span>
      <select id="buildsSlot"></select>
    </div>
  </div>
  <p id="downloadSlot">
    <button id="download">下载</button>
  </p>
  <p id="statusText"></p>
</body>

<script type="text/javascript">
  (() => {
    /** @type {HTMLSelectElement} */
    const versionsSlot = document.querySelector("#versionsSlot");
    /** @type {HTMLSelectElement} */
    const buildsSlot = document.querySelector("#buildsSlot");
    /** @type {HTMLParagraphElement} */
    const statusText = document.querySelector("#statusText");
    /** @type {HTMLButtonElement} */
    const downloadBtn = document.querySelector("#download");

    function selectStatusChange(b) {
      versionsSlot.disabled = b;
      buildsSlot.disabled = b;
      downloadBtn.disabled = b;
      if (b) {
        statusText.innerText = "加载中..."
      } else {
        statusText.innerText = "";
      }
    }

    async function init() {
      selectStatusChange(true);

      /** @type {Array<String>} */
      const versions = await getAllVersion();
      appendVersion(versions);

      /** @type {Array<String>} */
      const builds = await getBuilds(versions[0]);
      appendBuild(builds);

      versionsSlot.onchange = async () => {
        selectStatusChange(true);
        const builds = await getBuilds(versionsSlot.value);
        buildsSlot.innerHTML = "";
        appendBuild(builds);
        selectStatusChange(false);
      }
      downloadBtn.onclick = async () => {
        selectStatusChange(true);
        await getJar(versionsSlot.value, buildsSlot.value);
        selectStatusChange(false);
      }

      selectStatusChange(false);
    }

    function appendVersion(versions) {
      const fragment = document.createDocumentFragment();
      for (let i in versions) {
        const o = document.createElement("option");
        o.innerText = versions[i];
        o.value = versions[i];
        fragment.appendChild(o);
      }
      versionsSlot.appendChild(fragment);
    }

    function appendBuild(builds) {
      const fragment = document.createDocumentFragment();
      for (let i in builds) {
        const o = document.createElement("option");
        o.innerText = builds[i]['build'];
        o.value = builds[i]['build'];
        fragment.appendChild(o);
      }
      buildsSlot.appendChild(fragment);
    }

    async function getAllVersion() {
      const data = await fetch("https://api.papermc.io/v2/projects/paper");
      if (data.ok) {
        const { versions } = await data.json();
        return versions.reverse();
      } else {
        return null;
      }
    }

    async function getBuilds(version) {
      const data = await fetch(`https://api.papermc.io/v2/projects/paper/versions/${version}/builds`);
      if (data.ok) {
        const { builds } = await data.json();
        return builds.reverse();
      } else {
        return null;
      }
    }

    async function getJar(version, build) {
      const fileName = `paper-${version}-${build}.jar`;
      try {
        const data = await fetch(`https://api.papermc.io/v2/projects/paper/versions/${version}/builds/${build}/downloads/${fileName}`);
        if (data.ok) {
          statusText.innerText = `正在下载文件 ${data.url}`;
          const b = await data.blob();
          const jar = new File([b], fileName, {
            type: "application/java-archive"
          });

          const link = URL.createObjectURL(jar);
          const a = document.createElement("a");
          a.download = fileName;
          a.href = link;
          a.click();
        } else {
          console.log(`status: ${data.status}, statusText: ${data.statusText}`);
          alert("请求失败");
        }
      } catch (e) {
        console.error(e);
        alert("请求失败");
      }
    }

    init();
  })();
</script>

</html>

不用忍受paper那时不时卡死的swagger了

莹夜 ·

jvm http代理

java -DproxySet=true -DproxyHost=127.0.0.1 -DproxyPort=10809 -jar xxx.jar
莹夜 ·

提取字幕

ffmpeg -i in.mkv -an -vn -scodec copy -map 0:s:x out.ass

0:s:x的x为第几个字幕，数字从0开始。
输出的字幕格式需要根据视频内的来指定，有ass，srt，sup等等…

莹夜 ·

贝塞尔曲线
https://zhuanlan.zhihu.com/p/180508343

莹夜 ·

openssh-server升级后无法使用ssh-rsa私钥进行登录解决方案：
往/etc/ssh/sshd_config文件的最后追加这一行

PubkeyAcceptedKeyTypes=+ssh-rsa

然后再重启ssh服务