添加一键下载jre的功能

2025-12-06 10:50:42 +08:00 · 2025-11-16 18:26:18 +08:00
parent ddc6aa4e95
commit 5acb70c5d2
6 changed files with 293 additions and 7 deletions
--- a/Tools/jredownload/JreDownloadService.cs
+++ b/Tools/jredownload/JreDownloadService.cs
@@ -0,0 +1,193 @@
+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)
+        {
+            // 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 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);
+            }
+        }
+    }
+}