修复下载jre的已知问题

.gitignore

@@ -2,3 +2,5 @@ bin/
 obj/
 logs/
 profiles/
+jre/
+setup/

Program.cs

@@ -2,6 +2,7 @@ using System;
 using System.Threading.Tasks;
 using MCSJ.Tools;
 using MCSJ.Tools.LogSystem;
+using MCSJ.Tools.JreDownload;
 
 namespace MCSJ
 {
@@ -15,6 +16,10 @@ namespace MCSJ
             LogMain.Debug($"日志文件: {LogCreator.GetLogFilePath()}");
             
             LogMain.Info("MC服务器下载工具启动");
+            var httpClient = new HttpClient {
+                Timeout = TimeSpan.FromMinutes(5),
+                DefaultRequestHeaders = { { "User-Agent", "MCSJ-JRE-Downloader" } }
+            };
             var versionManager = new VersionManager();
             var downloadService = new DownloadService(versionManager);
             LogMain.Debug("服务初始化完成");
@@ -24,7 +29,8 @@ namespace MCSJ
                 Console.WriteLine("MC服务器下载工具");
                 Console.WriteLine("1. 显示所有版本");
                 Console.WriteLine("2. 下载指定版本");
-                Console.WriteLine("3. 退出");
+                Console.WriteLine("3. 下载JRE");
+                Console.WriteLine("4. 退出");
                 Console.Write("请选择操作: ");
                 
                 var input = Console.ReadLine();
@@ -44,6 +50,19 @@ namespace MCSJ
                         LogMain.Info($"版本下载完成: {version}");
                         break;
                     case "3":
+                        Console.Write("请输入要下载的JRE版本(jre8,jre11,jre17/21/25): ");
+                        var jreVersion = Console.ReadLine();
+                        if (string.IsNullOrWhiteSpace(jreVersion))
+                        {
+                            Console.WriteLine("JRE版本不能为空");
+                            continue;
+                        }
+                        LogMain.Info($"开始下载JRE: {jreVersion}");
+                        var jreDownloadService = new JreDownloadService(httpClient);
+                        await jreDownloadService.DownloadAndSetupJre(jreVersion);
+                        LogMain.Info($"JRE下载完成: {jreVersion}");
+                        break;
+                    case "4":
                         LogMain.Info("程序正常退出");
                         return;
                     default:

Tools/DownloadService.cs

@@ -16,10 +16,16 @@ namespace MCSJ.Tools
             _httpClient = new HttpClient();
         }
 
-        public async Task DownloadVersion(string version)
+        public async Task DownloadVersion(string? version)
         {
+            if (string.IsNullOrWhiteSpace(version))
+            {
+                Console.WriteLine("版本名称不能为空");
+                return;
+            }
+
             var url = _versionManager.GetDownloadUrl(version);
-            if (url == null)
+            if (string.IsNullOrEmpty(url))
             {
                 Console.WriteLine($"版本 {version} 不存在");
                 return;
@@ -30,8 +36,8 @@ namespace MCSJ.Tools
             if (!Directory.Exists(profilesRoot))
                 Directory.CreateDirectory(profilesRoot);
 
-            string targetFolder = null;
-            string profilePath = null;
+            string? targetFolder = null;
+            string? profilePath = null;
             while (true)
             {
                 Console.Write($"请输入存放文件夹名称（直接回车默认用版本名 '{version}'）：");

Tools/VersionManager.cs

@@ -71,6 +71,13 @@ namespace MCSJ.Tools
 
         public void DisplayAllVersions()
         {
+            var filePath = Path.Combine("resources", "serverlist.txt");
+            if (!File.Exists(filePath))
+            {
+                Console.WriteLine("版本列表文件不存在");
+                return;
+            }
+
             Console.WriteLine("可用版本列表:");
             foreach (var version in _versions.Keys)
             {
@@ -78,7 +85,7 @@ namespace MCSJ.Tools
             }
         }
 
-        public string GetDownloadUrl(string version)
+        public string? GetDownloadUrl(string version)
         {
             return _versions.TryGetValue(version, out var url) ? url : null;
         }

Tools/jredownload/JreDownloadProgress.cs

@@ -0,0 +1,59 @@
+using System;
+using System.IO;
+
+namespace MCSJ.Tools.JreDownload
+{
+    public class JreDownloadProgress : IProgress<(long bytesReceived, long totalBytesToReceive, int progressPercentage)>
+    {
+        public void Report((long bytesReceived, long totalBytesToReceive, int progressPercentage) value)
+        {
+            // 保存当前控制台颜色
+            var originalColor = Console.ForegroundColor;
+            
+            try
+            {
+                // 计算下载百分比
+                int percentage = value.progressPercentage;
+                
+                // 格式化文件大小（使用MB单位）
+                string received = FormatFileSizeMB(value.bytesReceived);
+                string total = FormatFileSizeMB(value.totalBytesToReceive);
+                
+                // 创建进度条
+                string progressBar = CreateProgressBar(percentage);
+                
+                // 显示进度信息（仅进度条部分为绿色）
+                Console.Write("\r下载进度: ");
+                Console.ForegroundColor = ConsoleColor.Green;
+                Console.Write($"{progressBar}");
+                Console.ForegroundColor = originalColor;
+                Console.Write($" {percentage}% [{FormatFileSizeMB(value.bytesReceived)} / {FormatFileSizeMB(value.totalBytesToReceive)}]");
+                
+                // 下载完成时换行
+                if (percentage == 100)
+                {
+                    Console.WriteLine();
+                }
+            }
+            finally
+            {
+                // 恢复原始控制台颜色
+                Console.ForegroundColor = originalColor;
+            }
+        }
+        
+        private string CreateProgressBar(int percentage)
+        {
+            int width = 20; // 进度条宽度
+            int progress = percentage * width / 100;
+            
+            return $"[{new string('#', progress)}{new string('-', width - progress)}]";
+        }
+        
+        private string FormatFileSizeMB(long bytes)
+        {
+            double mb = bytes / (1024.0 * 1024.0);
+            return $"{mb:0.##} MB";
+        }
+    }
+}

Tools/jredownload/JreDownloadService.cs

@@ -0,0 +1,217 @@
+using System;
+using System.IO;
+using System.Linq;
+using System.Net.Http;
+using System.Threading.Tasks;
+using System.IO.Compression;
+
+namespace MCSJ.Tools.JreDownload
+{
+    public class JreDownloadService
+    {
+        private readonly HttpClient _httpClient;
+        private const string JreListPath = "resources/jrelist.txt";
+        private const string JreRootFolder = "jre";
+        private const string SetupFolder = "setup";
+
+        public JreDownloadService(HttpClient httpClient)
+        {
+            _httpClient = httpClient;
+        }
+
+        public async Task DownloadAndSetupJre(string version)
+        {
+            // 0. 检查是否已存在该版本
+            if (CheckJreExists(version))
+            {
+                Console.WriteLine($"JRE {version} 已存在，无需重复下载");
+                return;
+            }
+
+            // 1. 读取jrelist.txt获取下载链接
+            var downloadUrl = GetDownloadUrl(version);
+            if (string.IsNullOrEmpty(downloadUrl))
+            {
+                Console.WriteLine($"找不到版本 {version} 的下载链接");
+                return;
+            }
+
+            // 2. 下载压缩包
+            var progress = new JreDownloadProgress();
+            var tempZipPath = await DownloadJreZip(downloadUrl, version, progress);
+            if (string.IsNullOrEmpty(tempZipPath))
+            {
+                Console.WriteLine("下载失败");
+                return;
+            }
+
+            // 3. 解压到jre文件夹
+            var jreFolder = Path.Combine(JreRootFolder, version);
+            if (!ExtractJre(tempZipPath, jreFolder))
+            {
+                Console.WriteLine("解压失败");
+                return;
+            }
+
+            // 4. 查找java.exe和javaw.exe
+            var javaExePath = FindJavaExe(jreFolder, "java.exe");
+            var javawExePath = FindJavaExe(jreFolder, "javaw.exe");
+
+            if (javaExePath == null || javawExePath == null)
+            {
+                Console.WriteLine("找不到java.exe或javaw.exe");
+                return;
+            }
+
+            // 5. 生成jre.toml
+            CreateJreToml(version, javaExePath, javawExePath);
+
+            // 6. 清理临时文件
+            File.Delete(tempZipPath);
+
+            Console.WriteLine($"JRE {version} 安装完成");
+        }
+
+        private string? GetDownloadUrl(string version)
+        {
+            if (string.IsNullOrWhiteSpace(version))
+                return null;
+
+            if (!File.Exists(JreListPath))
+                return null;
+
+            var lines = File.ReadAllLines(JreListPath);
+            return lines.FirstOrDefault(l => l.StartsWith(version + ":"))?.Split(':').LastOrDefault();
+        }
+
+        private async Task<string?> DownloadJreZip(string url, string version, IProgress<(long, long, int)>? progress = null)
+        {
+            var tempPath = Path.GetTempFileName();
+            try
+            {
+                Console.WriteLine($"开始下载 JRE {version}...");
+                // 确保URL是绝对路径，自动补全https协议头
+                if (!url.StartsWith("http:") && !url.StartsWith("https:"))
+                {
+                    url = "https:" + url;
+                }
+
+                if (!Uri.IsWellFormedUriString(url, UriKind.Absolute))
+                {
+                    Console.WriteLine($"无效的下载URL: {url}");
+                    return null;
+                }
+
+                Console.WriteLine($"正在准备下载 {url}...");
+                var response = await _httpClient.GetAsync(url, HttpCompletionOption.ResponseHeadersRead);
+                response.EnsureSuccessStatusCode();
+
+                var totalBytes = response.Content.Headers.ContentLength ?? 0;
+                Console.WriteLine($"文件总大小: {totalBytes} 字节");
+                long bytesRead = 0;
+                var lastReportTime = DateTime.MinValue;
+                Console.WriteLine("开始下载...");
+
+                using (var stream = await response.Content.ReadAsStreamAsync())
+                using (var fileStream = new FileStream(tempPath, FileMode.Create))
+                {
+                    var buffer = new byte[8192];
+                    int bytesReadThisPass;
+                    
+                    while ((bytesReadThisPass = await stream.ReadAsync(buffer)) != 0)
+                    {
+                        await fileStream.WriteAsync(buffer.AsMemory(0, bytesReadThisPass));
+                        bytesRead += bytesReadThisPass;
+                        
+                        // 限制进度报告频率，避免过多控制台输出
+                        if (DateTime.Now - lastReportTime > TimeSpan.FromMilliseconds(100) || bytesRead == totalBytes)
+                        {
+                            int progressPercentage = totalBytes > 0 ? (int)(bytesRead * 100 / totalBytes) : 0;
+                            Console.WriteLine($"报告进度: {bytesRead}/{totalBytes} ({progressPercentage}%)");
+                            progress?.Report((bytesRead, totalBytes, progressPercentage));
+                            lastReportTime = DateTime.Now;
+                        }
+                    }
+                }
+
+                return tempPath;
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine($"下载失败: {ex.Message}");
+                return null;
+            }
+        }
+
+        private bool ExtractJre(string zipPath, string targetFolder)
+        {
+            try
+            {
+                if (Directory.Exists(targetFolder))
+                    Directory.Delete(targetFolder, true);
+
+                Directory.CreateDirectory(targetFolder);
+                ZipFile.ExtractToDirectory(zipPath, targetFolder);
+                return true;
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine($"解压失败: {ex.Message}");
+                return false;
+            }
+        }
+
+        private string? FindJavaExe(string folder, string exeName)
+        {
+            if (string.IsNullOrWhiteSpace(folder) || string.IsNullOrWhiteSpace(exeName))
+                return null;
+
+            if (!Directory.Exists(folder))
+                return null;
+
+            return Directory.GetFiles(folder, exeName, SearchOption.AllDirectories).FirstOrDefault();
+        }
+
+        private bool CheckJreExists(string version)
+        {
+            var tomlPath = Path.Combine(SetupFolder, "jre.toml");
+            if (!File.Exists(tomlPath))
+                return false;
+
+            try
+            {
+                var content = File.ReadAllText(tomlPath);
+                return content.Contains($"[jre.{version}]");
+            }
+            catch
+            {
+                return false;
+            }
+        }
+
+        private void CreateJreToml(string version, string javaExePath, string javawExePath)
+        {
+            if (!Directory.Exists(SetupFolder))
+                Directory.CreateDirectory(SetupFolder);
+
+            var tomlPath = Path.Combine(SetupFolder, "jre.toml");
+            var content = $@"[jre.{version}]
+java_path = '{javaExePath}'
+javaw_path = '{javawExePath}'
+";
+
+            if (File.Exists(tomlPath))
+            {
+                var existingContent = File.ReadAllText(tomlPath);
+                if (!existingContent.Contains($"[jre.{version}]"))
+                {
+                    File.AppendAllText(tomlPath, content);
+                }
+            }
+            else
+            {
+                File.WriteAllText(tomlPath, content);
+            }
+        }
+    }
+}

build.bat

@@ -5,3 +5,5 @@ ren win-x64 MCSJ-x64
 ren win-x86 MCSJ-x86
 rmdir /s /q MCSJ-x64\publish
 rmdir /s /q MCSJ-x86\publish
+7z a -tzip MCSJ-x64.zip MCSJ-x64
+7z a -tzip MCSJ-x86.zip MCSJ-x86