环境

Java 环境

java version "21.0.2" 2024-01-16 LTS
Java(TM) SE Runtime Environment (build 21.0.2+13-LTS-58)
Java HotSpot(TM) 64-Bit Server VM (build 21.0.2+13-LTS-58, mixed mode, sharing)

Gradle 环境

------------------------------------------------------------
Gradle 8.5
------------------------------------------------------------Build time:   2023-11-29 14:08:57 UTC
Revision:     28aca86a7180baa17117e0e5ba01d8ea9feca598Kotlin:       1.9.20
Groovy:       3.0.17
Ant:          Apache Ant(TM) version 1.10.13 compiled on January 4 2023
JVM:          21.0.2 (Oracle Corporation 21.0.2+13-LTS-58)
OS:           Windows 11 10.0 amd64

IDEA

IntelliJ IDEA 2023.3.3 (Ultimate Edition)
Build #IU-233.14015.106, built on January 25, 2024
Subscription is active until October 14, 2024.
Runtime version: 17.0.9+7-b1087.11 amd64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
Windows 11.0
GC: G1 Young Generation, G1 Old Generation
Memory: 2048M
Cores: 32
Registry:debugger.new.tool.window.layout=trueide.experimental.ui=true
Non-Bundled Plugins:com.jetbrains.packagesearch.intellij-plugin (233.11799.196)com.intellij.ml.llm (233.14015.137)
Kotlin: 233.14015.106-IJ

代码

Main.java

package com.stu;public class Main {public static void main(String[] args) {Main main = new Main();main.test00();}public void test00() {System.out.println("中文测试");System.out.println("sun.stdout.encoding = " + System.getProperty("sun.stdout.encoding"));System.out.println("sun.stderr.encoding = " + System.getProperty("sun.stderr.encoding"));System.out.println("      file.encoding = " + System.getProperty("file.encoding"));System.out.println("    native.encoding = " + System.getProperty("native.encoding"));}
}

build.gradle.kts

/** This file was generated by the Gradle 'init' task.** This is a general purpose Gradle build.* To learn more about Gradle by exploring our Samples at https://docs.gradle.org/8.5/samples*/plugins {id("java")
}tasks.register("runCode", JavaExec::class) {//defaultCharacterEncoding = "GBK"// println("测试Code" + defaultCharacterEncoding)mainClass = "com.stu.Main"classpath = sourceSets["main"].runtimeClasspathgroup = "Exec"description = "运行指定代码"
}// tasks.register("runStu") {
//     for (sourceSetContainer in sourceSets) {
//         println(sourceSetContainer)
//     }//     println(sourceSets)
// }// tasks.withType<JavaCompile>().configureEach {// }/*
tasks.withType(JavaExec::class.java) {val args:List<String> = ArrayList()args.addLast("-Dsun.stdout.encoding=GBK")args.addLast("-Dsun.stderr.encoding=GBK")args.addLast("-Dfile.encoding=GBK")this.jvmArgs = argsprintln(this.jvmArgs)
}
*/

测试结果

配置 JAVA_TOOL_OPTIONS

无效

# 配置 JAVA_TOOL_OPTIONS  -Dsun.stdout.encoding=GBK -Dsun.stderr.encoding=GBK -Dfile.encoding=GBK> Task :runCode
涓枃娴嬭瘯
sun.stdout.encoding = UTF-8
sun.stderr.encoding = UTF-8file.encoding = GBKnative.encoding = GBK

配置 build.gradle.kts

有效

tasks.withType(JavaExec::class.java) {val args:List<String> = ArrayList()args.addLast("-Dsun.stdout.encoding=GBK")args.addLast("-Dsun.stderr.encoding=GBK")args.addLast("-Dfile.encoding=GBK")this.jvmArgs = argsprintln(this.jvmArgs)
}

> Task :runCode
中文测试
sun.stdout.encoding = GBK
sun.stderr.encoding = GBKfile.encoding = GBKnative.encoding = GBK

配置 idea64.exe.vmoptions

无效

-Dsun.stdout.encoding=GBK
-Dsun.stderr.encoding=GBK
-Dfile.encoding=GBK

> Task :runCode
涓枃娴嬭瘯
sun.stdout.encoding = UTF-8
sun.stderr.encoding = UTF-8file.encoding = GBKnative.encoding = GBK

无配置

无效

> Task :runCode
涓枃娴嬭瘯
sun.stdout.encoding = UTF-8
sun.stderr.encoding = UTF-8file.encoding = GBKnative.encoding = GBK

总结

只有配置JavaExec 运行环境才能不乱码，配置了JAVA_TOOL_OPTIONS，可以在VSCode 中 PowerShell 执行任务中日志不乱码，但是执行结果还是乱码。

问题链接

Gradle 社区问题: Gradle Garbled code

Stack overflow: Why do Java programs created using Gradle generate garbled code when running