修复modpackinfo.json NPE异常崩溃的问题

VM-Chinese-translate-group · Feb 2, 2025 · 0ca6ea7 · 0ca6ea7
1 parent ac5570f
commit 0ca6ea7
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Showing 2 changed files with 55 additions and 16 deletions.
diff --git a/common/src/main/java/top/vmctcn/vmtranslationupdate/modpack/ModpackInfo.java b/common/src/main/java/top/vmctcn/vmtranslationupdate/modpack/ModpackInfo.java
@@ -1,16 +1,16 @@
 package top.vmctcn.vmtranslationupdate.modpack;
 
 public class ModpackInfo {
-    private Modpack modpack;
+    Modpack modpack;
 
     public Modpack getModpack() {
         return modpack;
     }
 
     public static class Modpack {
-        private String name;
-        private String version;
-        private Translation translation;
+        String name;
+        String version;
+        Translation translation;
 
         public String getName() {
             return name;
@@ -26,11 +26,11 @@ public Translation getTranslation() {
     }
 
     public static class Translation {
-        private String url;
-        private String language;
-        private String version;
-        private String updateCheckUrl;
-        private String resourcePackName;
+        String url;
+        String language;
+        String version;
+        String updateCheckUrl;
+        String resourcePackName;
 
         public String getUrl() {
             return url;
@@ -52,4 +52,4 @@ public String getResourcePackName() {
             return resourcePackName;
         }
     }
-}
+}
diff --git a/common/src/main/java/top/vmctcn/vmtranslationupdate/modpack/ModpackInfoReader.java b/common/src/main/java/top/vmctcn/vmtranslationupdate/modpack/ModpackInfoReader.java
@@ -1,33 +1,72 @@
 package top.vmctcn.vmtranslationupdate.modpack;
 
 import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
 import top.vmctcn.vmtranslationupdate.VMTranslationUpdate;
 import top.vmctcn.vmtucore.ModPlatform;
 
-import java.io.FileReader;
+import java.io.IOException;
 import java.io.Reader;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
 import java.nio.file.Path;
+import java.nio.file.StandardOpenOption;
 
 public class ModpackInfoReader {
-    private static final Gson GSON = new Gson();
+    private static final Gson GSON = new GsonBuilder().setPrettyPrinting().create();
     private static ModpackInfo modpackInfo;
     private static final Path gamePath = ModPlatform.INSTANCE.getGameDir();
+    private static final Path modpackInfoPath = gamePath.resolve("modpackinfo.json");
 
     static {
         init();
     }
 
     public static void init() {
-        if (gamePath.resolve("modpackinfo.json") != null) {
-            try (Reader reader = new FileReader(gamePath.resolve("modpackinfo.json").toString())) {
+        if (Files.exists(modpackInfoPath)) {
+            try (Reader reader = Files.newBufferedReader(modpackInfoPath, StandardCharsets.UTF_8)) {
                 modpackInfo = GSON.fromJson(reader, ModpackInfo.class);
+                if (modpackInfo == null) {
+                    VMTranslationUpdate.LOGGER.warn("modpackinfo.json is empty or invalid, generating default file.");
+                    generateDefaultModpackInfo();
+                }
             } catch (Exception e) {
-                VMTranslationUpdate.LOGGER.warn("Error getting modpack info index: ", e);
+                VMTranslationUpdate.LOGGER.warn("Error reading modpackinfo.json, generating default file.", e);
+                generateDefaultModpackInfo();
             }
+        } else {
+            VMTranslationUpdate.LOGGER.warn("modpackinfo.json does not exist, generating default file.");
+            generateDefaultModpackInfo();
+        }
+    }
+
+    private static void generateDefaultModpackInfo() {
+        modpackInfo = new ModpackInfo();
+        modpackInfo.modpack = new ModpackInfo.Modpack();
+        modpackInfo.modpack.name = "ExampleModpack";
+        modpackInfo.modpack.version = "v0.1.0";
+
+        modpackInfo.modpack.translation = new ModpackInfo.Translation();
+        modpackInfo.modpack.translation.url = "https://vmct-cn.top/modpacks/example/";
+        modpackInfo.modpack.translation.language = "zh_cn";
+        modpackInfo.modpack.translation.version = "1.0.0";
+        modpackInfo.modpack.translation.updateCheckUrl = "https://gitee.com/Wulian233/vmtu/raw/main/update/example.txt";
+        modpackInfo.modpack.translation.resourcePackName = "VM汉化组模组汉化包1.18";
+
+        try {
+            Files.writeString(modpackInfoPath, GSON.toJson(modpackInfo), StandardCharsets.UTF_8, StandardOpenOption.CREATE, StandardOpenOption.TRUNCATE_EXISTING);
+            VMTranslationUpdate.LOGGER.info("Default modpackinfo.json generated.");
+
+            // 再次读取以确保正确加载
+            try (Reader reader = Files.newBufferedReader(modpackInfoPath, StandardCharsets.UTF_8)) {
+                modpackInfo = GSON.fromJson(reader, ModpackInfo.class);
+            }
+        } catch (IOException e) {
+            VMTranslationUpdate.LOGGER.error("Failed to generate default modpackinfo.json", e);
         }
     }
 
     public static ModpackInfo getModpackInfo() {
         return modpackInfo;
     }
-}
+}