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@echo off
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REM ========================================
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REM 优化的 JVM 启动参数模板
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REM 用于解决 Windows 7GB 内存系统上的本地内存不足问题
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REM ========================================
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:: 设置命令行字符集为 UTF-8
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chcp 65001
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:: ========================================
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REM 【必须修改】配置项
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REM ========================================
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:: Java 路径
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set "JAVA_PATH=D:\sy_software\jdk-20\bin\java.exe"
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:: JAR 包路径（根据你的应用修改）
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set "JAR_PATH=D:\sy_software\application-app\yudao-server.jar"
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:: 日志路径（确保目录存在）
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set "LOG_PATH=D:\sy_software\application-app\logs"
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:: 应用名称（用于日志文件名）
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set "APP_NAME=yudao-server"
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:: ========================================
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REM 优化的 JVM 参数
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REM ========================================
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:: 内存配置
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:: -Xms: 初始堆大小（1GB）
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:: -Xmx: 最大堆大小（2GB，为其他进程和本地内存保留 5GB）
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:: -XX:MetaspaceSize: 初始元空间大小
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:: -XX:MaxMetaspaceSize: 最大元空间大小
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:: -XX:ReservedCodeCacheSize: JIT 编译代码缓存（增加到 512MB）
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:: 关键修复参数
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:: -XX:HeapBaseMinAddress=0x100000000
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:: 将 Java Heap 放在 4GB 地址空间以上
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:: 避免与本地内存（OpenCV、ONNX、相机库等）地址冲突
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:: -XX:MaxDirectMemorySize=1g
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:: 设置直接内存最大限制为 1GB
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:: 解决 ONNX、OpenCV 等需要分配大量直接内存的问题
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set "JVM_OPTS=-server ^
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-Xms1g ^
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-Xmx2g ^
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-XX:MetaspaceSize=256m ^
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-XX:MaxMetaspaceSize=512m ^
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-XX:ReservedCodeCacheSize=512m ^
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-XX:MaxDirectMemorySize=1g ^
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-XX:HeapBaseMinAddress=0x100000000"
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:: 垃圾回收器配置
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:: -XX:+UseG1GC: 使用 G1 垃圾回收器
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:: -XX:MaxGCPauseMillis=200: 目标 GC 暂停时间 200ms
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set "JVM_OPTS=%JVM_OPTS% ^
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-XX:+UseG1GC ^
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-XX:MaxGCPauseMillis=200"
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:: 错误处理和日志
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:: -XX:+HeapDumpOnOutOfMemoryError: OOM 时生成堆转储
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:: -XX:HeapDumpPath: 堆转储文件路径
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:: -XX:ErrorFile: JVM 崩溃日志路径
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set "JVM_OPTS=%JVM_OPTS% ^
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-XX:+HeapDumpOnOutOfMemoryError ^
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-XX:HeapDumpPath=%LOG_PATH%/%APP_NAME%_heap_dump.hprof ^
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-XX:ErrorFile=%LOG_PATH%/hs_err_pid%%p.log"
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:: 系统属性
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:: -Dfile.encoding: 文件编码
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:: -Duser.timezone: 时区
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set "JVM_OPTS=%JVM_OPTS% ^
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-Dfile.encoding=UTF-8 ^
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-Duser.timezone=Asia/Shanghai"
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:: ========================================
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REM 启动应用
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REM ========================================
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echo ========================================
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echo 正在启动: %APP_NAME%
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echo ========================================
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echo Java 路径: %JAVA_PATH%
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echo JAR 路径: %JAR_PATH%
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echo 日志路径: %LOG_PATH%
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echo.
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echo JVM 参数:
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echo -Xms1g -Xmx2g
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echo -XX:HeapBaseMinAddress=0x100000000 (关键修复)
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echo -XX:ReservedCodeCacheSize=512m
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echo -XX:+UseG1GC
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echo.
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echo ========================================
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:: 检查日志目录是否存在
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if not exist "%LOG_PATH%" (
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echo 创建日志目录: %LOG_PATH%
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mkdir "%LOG_PATH%"
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)
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:: 启动应用
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echo 启动中...
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"%JAVA_PATH%" %JVM_OPTS% -jar "%JAR_PATH%"
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echo.
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echo ========================================
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echo 应用已退出
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echo ========================================
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pause
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