java - 混淆后gson的Proguard错误

Question

我遇到了非常具体的错误，该错误在混淆后出现。我使用 gson 获取用于更新程序的游戏服务器数据。

public static List<Server> getServers() {
    try {
        URL url = new URL("http://api.ensemplix.ru/v2/server/game/");
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        InputStream in = conn.getInputStream();
        BufferedReader br = new BufferedReader(new InputStreamReader(in,
                "UTF-8"));
        return Arrays.asList(gson.fromJson(br, Server[].class));
    } catch (IOException e) {
        logger.warn("Failed get servers", e);
        return null;
    }
}

提供的数据是 mods 列表的数组，表示为 ArrayList:

@SerializedName("mods")
private List<Mod> mods = new ArrayList<Mod>();

没有 proguard 混淆一切正常，但我得到一个收集错误:

这是它在 eclipse 中的样子:

抛出错误的方法:

    public static List<Mod> getUpdateList(ServerType serverType) {
    List<Mod> updateList = new ArrayList<Mod>();

    System.out.println(serverType.getMods().toString());

    for (Mod mod : serverType.getMods()) {
        boolean install = false;
        boolean update = false;
        boolean exists = false;

        for (LocalMod localMod : localMods) {
            if (serverType == localMod.getServerType()) {
                if (mod.getName().equalsIgnoreCase(localMod.getName())) {
                    exists = true;

                    if (!mod.getVersion().equalsIgnoreCase(
                            localMod.getVersion())) {
                        logger.info("Removing mod " + localMod.getName()
                                + " version " + localMod.getVersion()
                                + " to update to " + mod.getVersion()
                                + " in " + serverType.getName());

                        if (!localMod.getFile().delete()) {
                            throw new IllegalArgumentException(
                                    "Failed delete mod "
                                            + localMod.getName()
                                            + " "
                                            + localMod.getFile()
                                                    .getAbsolutePath());
                        }

                        localMods.remove(localMod);
                        break;
                    }
                }
            }
        }

        if (!exists) {
            install = true;
        }

        if (install || update) {
            if (install) {
                logger.info("Installing mod " + mod.getName() + " version "
                        + mod.getVersion() + " for " + serverType.getName());
            }

            updateList.add(mod);
        }
    }

    return updateList;
}

我不知道如何修复混淆错误。你能帮忙吗？

Answer 1

有两种解决方案:

1) 您可以将@SerializedName 名称添加到您的Mod 类和其他json 响应相关类。

2) 如果 Java 模型位于与您的 json 响应相关的特定包中，您可能会说 proguard 不会混淆它。正如我从您的错误日志中看到的那样；你的 Mod 类被混淆了，它的名字变成了 a。所以;您可以将如下内容添加到 proguard.cfg 文件中:

编辑:

# Gson uses generic type information stored in a class file when working with fields.
# removes such information by default, so configure it to keep all of it.
-keepattributes Signature
# Gson specific classes
-keep class sun.misc.Unsafe { *; }

# Application classes that will be serialized/deserialized over Gson
-keep class ru.ensemplix.** { *; }

See link