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---
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title: "JVM 选项与环境变量"
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permalink: /launcher/jvm-options-and-env.html
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date: 2025-04-20 23:18:02 +0800
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categories: 启动器
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toc: true
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---
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## JVM 选项
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HMCL 提供了一些 JVM 选项用于调试目的。你可以通过在启动 HMCL 时添加这些参数来使用这些功能。
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| 参数 | 描述 |
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|------|------|
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| `-Dhmcl.home=<path>` | 覆盖 HMCL 数据文件夹路径 |
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| `-Dhmcl.self_integrity_check.disable=true` | 禁用启动器更新时的本体完整性检查 |
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| `-Dhmcl.bmclapi.override=<url>` | 自定义 BMCLAPI 的 API Root 地址(默认为 `https://bmclapi2.bangbang93.com`)|
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| `-Dhmcl.font.override=<font family>` | 指定启动器使用的字族 |
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| `-Dhmcl.version.override=<version>` | 手动指定启动器版本号 |
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| `-Dhmcl.update_source.override=<url>` | 自定义 HMCL 更新源地址 |
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| `-Dhmcl.authlibinjector.location=<path>` | 指定本地 authlib-injector 路径,不从网络下载 |
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| `-Dhmcl.openjfx.repo=<maven repository url>` | 添加用于下载 OpenJFX 的自定义 Maven 仓库地址(默认为 `https://repo1.maven.org/maven2`)|
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| `-Dhmcl.native.encoding=<encoding>` | 指定系统原生编码 |
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| `-Dhmcl.microsoft.auth.id=<App ID>` | 自定义 Microsoft OAuth 应用程序 ID |
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| `-Dhmcl.microsoft.auth.secret=<App Secret>` | 自定义 Microsoft OAuth 应用程序密钥 |
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| `-Dhmcl.curseforge.apikey=<key>` | 自定义 CurseForge API 密钥 |
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| `-Dhmcl.discoapi.override=<url>` | 自定义 DiscoAPI 的 API Root 地址(默认为 `https://api.foojay.io/disco/v3.0`)|
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## 环境变量
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HMCL/HMCLauncher 也支持一些环境变量来配置启动器的行为。你可以在系统环境变量中添加这些变量。
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| 参数 | 描述 |
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|------|------|
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| `HMCL_JAVA_OPTS` | 自定义 HMCLauncher 所使用的 JVM 启动参数(默认为 `-XX:MinHeapFreeRatio=5 -XX:MaxHeapFreeRatio=15`)|
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| `HMCL_JAVA_HOME` | 自定义 HMCLauncher 所使用的 Java 路径 |
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| `HMCL_FONT` | 指定启动器使用的字族 |
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| `HMCL_JRES` | 添加 HMCL 所使用的 Java 路径,支持写入多个路径 |
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## 如何使用 JVM 选项
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你可以通过以下几种方式使用这些 JVM 选项。
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### 方法一:直接在命令行中添加
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在启动 HMCL 时通过命令行添加参数,例如:
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```bash
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java -Dhmcl.home="D:/Games/HMCL" -jar HMCL.jar
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```
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### 方法二:创建启动脚本
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1. Windows 用户可以创建 `.cmd` 文件:
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```batch
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@echo off
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java -Dhmcl.font.override="Microsoft YaHei" -jar HMCL.jar
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pause
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```
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2. Linux/macOS 用户可以创建 `.sh` 文件:
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```bash
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#!/bin/bash
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java -Dhmcl.font.override="Noto Sans CJK SC" -jar HMCL.jar
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```
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### 使用注意事项
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- 可以同时使用多个参数,只需要用空格分隔
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- 包含空格的参数值需要用半角引号包裹
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- 确保 JVM 参数位于 `-jar HMCL.jar` 之前
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## 如何使用环境变量
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### Windows 设置环境变量
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1. 右键点击“此电脑”/“这台电脑”/“我的电脑”,选择“属性”
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2. 点击“高级系统设置”
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3. 点击“环境变量”
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4. 在“用户变量”或“系统变量”中点击“新建”
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5. 输入变量名(如 `HMCL_JAVA_HOME`)和变量值
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6. 点击“确定”保存
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示例值:
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```
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变量名: HMCL_JAVA_HOME
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变量值: C:\Program Files\Java\jdk-17
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```
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### Linux/macOS 设置环境变量
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1. 编辑你的 Shell 配置文件(比如 `~/.bashrc`、`~/.zshrc` 等)
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2. 添加 `export` 语句:
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```bash
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export HMCL_JAVA_HOME="/usr/lib/jvm/java-17-openjdk"
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export HMCL_JAVA_OPTS="-XX:MinHeapFreeRatio=5 -XX:MaxHeapFreeRatio=15"
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```
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3. 保存文件并重新加载配置:
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```bash
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source ~/.bashrc # 或 `source ~/.zshrc`
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```
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### 使用注意事项
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- 设置环境变量后需要重启 HMCL 才能生效
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- 如果同时设置了 JVM 参数和环境变量,JVM 参数优先级更高
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- Windows 用户注意使用半角分号(;)分隔多个路径
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- Linux/macOS 用户注意使用半角冒号(:)分隔多个路径
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