非法 base64 字符 5b 保存自定义对象时出错
Illegal base64 character 5b Error when saving a custom object
我正在为我的世界 1.17 版编写一个 spigot 插件，并且刚刚学会了如何将序列化对象保存到 config.yml。我发现我也可以创建自定义可序列化对象，所以我做到了（我需要一个用于我的权限插件）。
现在，当我保存对象时，它保存了这个：
!!binary |-
rO0ABXNyABpvcmcuYnVra2l0LnV0aWwuaW8uV3JhcHBlcvJQR+zxEm8FAgABTAADbWFwdAAPTGphdmEvdXRpbC9NYXA7eHBzcgA3Y29tLmdvb2dsZS5jb21tb24uY29sbGVjdC5JbW11dGFibGVCaU1hcCRTZXJpYWxpemVkRm9ybQAAAAAAAAAAAgAAeHIANWNvbS5nb29nbGUuY29tbW9uLmNvbGxlY3QuSW1tdXRhYmxlTWFwJFNlcmlhbGl6ZWRGb3JtAAAAAAAAAAACAAJbAARrZXlzdAATW0xqYXZhL2xhbmcvT2JqZWN0O1sABnZhbHVlc3EAfgAFeHB1cgATW0xqYXZhLmxhbmcuT2JqZWN0O5DOWJ8QcylsAgAAeHAAAAABdAACPT11cQB+AAcAAAABdAAnbmV0Lm5pbHVzbmlsdXMucGx1Z2luLnBlcm1pc3Npb25zLkdyb3Vw
我认为这是正确的，但是当我尝试反序列化它时出现此错误：
java.lang.IllegalArgumentException: Illegal base64 character 5b
Full Error:
Could not pass event PlayerJoinEvent to CES-1.17 v1.0
org.bukkit.event.EventException: null
at org.bukkit.plugin.java.JavaPluginLoader.execute(JavaPluginLoader.java:310) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:589) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:576) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at net.minecraft.server.players.PlayerList.a(PlayerList.java:274) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at net.minecraft.server.network.LoginListener.a(LoginListener.java:192) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at net.minecraft.server.network.LoginListener.c(LoginListener.java:179) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at net.minecraft.server.network.LoginListener.tick(LoginListener.java:74) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at net.minecraft.network.NetworkManager.a(NetworkManager.java:246) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at net.minecraft.server.network.ServerConnection.c(ServerConnection.java:172) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at net.minecraft.server.MinecraftServer.b(MinecraftServer.java:1319) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at net.minecraft.server.dedicated.DedicatedServer.b(DedicatedServer.java:436) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:1200) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at net.minecraft.server.MinecraftServer.x(MinecraftServer.java:1027) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at net.minecraft.server.MinecraftServer.lambda[=11=](MinecraftServer.java:307) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at java.lang.Thread.run(Thread.java:831) [?:?]
Caused by: java.lang.IllegalArgumentException: Illegal base64 character 5b
at java.util.Base64$Decoder.decode0(Base64.java:847) ~[?:?]
at java.util.Base64$Decoder.decode(Base64.java:566) ~[?:?]
at java.util.Base64$Decoder.decode(Base64.java:589) ~[?:?]
at net.nilusnilus.plugin.main.config.CustomConfig.getSerialized(CustomConfig.java:101) ~[?:?]
at net.nilusnilus.plugin.events.PlayerJoinEvent.onPlayerJoin(PlayerJoinEvent.java:35) ~[?:?]
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[?:?]
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?]
at org.bukkit.plugin.java.JavaPluginLoader.execute(JavaPluginLoader.java:306) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
... 15 more
PLayerJoinEvent 代码：
package net.nilusnilus.plugin.events;
import net.nilusnilus.plugin.main.Util;
import net.nilusnilus.plugin.main.config.ConfigHandler;
import net.nilusnilus.plugin.main.config.CustomConfig;
import net.nilusnilus.plugin.permissions.Group;
import net.nilusnilus.plugin.permissions.GroupLoader;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
public class PlayerJoinEvent implements Listener {
private GroupLoader groupLoader;
public PlayerJoinEvent(GroupLoader groupLoader) {
this.groupLoader = groupLoader;
}
@EventHandler
public void onPlayerJoin(org.bukkit.event.player.PlayerJoinEvent event) {
String join_message = ConfigHandler.join_message;
CustomConfig players = ConfigHandler.players;
Player player = event.getPlayer();
String path = String.valueOf(player.getUniqueId());
event.setJoinMessage(Util.format(join_message, true, "<player>", event.getPlayer().getDisplayName()));
if(!players.contains(String.valueOf(player.getUniqueId()))) {
Group defaultGroup = groupLoader.getDefault();
players.setSerialized(path + ".group", defaultGroup);
}
Group group = (Group) players.getSerialized(path + ".group");
player.setDisplayName(group.getPrefix() + player.getDisplayName());
}
}
自定义配置代码：
package net.nilusnilus.plugin.main.config;
import net.nilusnilus.plugin.main.Main;
import net.nilusnilus.plugin.main.Util;
import org.bukkit.configuration.file.FileConfiguration;
import org.bukkit.configuration.file.YamlConfiguration;
import org.bukkit.util.io.BukkitObjectInputStream;
import org.bukkit.util.io.BukkitObjectOutputStream;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.util.Base64;
public class CustomConfig {
private Main plugin;
private File file;
private FileConfiguration config;
private String name;
public CustomConfig(Main plugin, String name) {
this.plugin = plugin;
this.name = name;
init();
}
private void init() {
file = new File(plugin.getDataFolder(), name);
// Check if the files doesn't exist
if(!file.exists()) {
try {
/*
* If it doesn't try copy the same file inside the resources folder
* to the plugin data folder.
*/
plugin.saveResource(name, false);
} catch(Exception e) {
/*
* If there is no premade file, create a blank one.
*/
try {
file.createNewFile();
} catch (IOException ioException) {
ioException.printStackTrace();
}
}
}
// At the end, parse the file into an FileConfiguration object.
config = YamlConfiguration.loadConfiguration(file);
}
public FileConfiguration get() {
return config;
}
public void save() {
try {
config.save(file);
} catch (IOException e) {
e.printStackTrace();
}
}
public void set(String path, Object value) {
config.set(path, value);
save();
}
public Object get(String path) {
return config.get(path);
}
public String getString(String path, boolean formatColor) {
if(!formatColor) {
return config.getString(path);
} else {
return Util.formatColor(config.getString(path));
}
}
public boolean getBoolean(String path) {
return config.getBoolean(path);
}
public boolean contains(String path) {
return config.contains(path);
}
public Object getSerialized(String path) {
try {
String encoded = config.getString(path);
byte[] deserialized = Base64.getDecoder().decode(encoded);
ByteArrayInputStream inputStream1 = new ByteArrayInputStream(deserialized);
BukkitObjectInputStream inputStream = new BukkitObjectInputStream(inputStream1);
return inputStream.readObject();
} catch(IOException | ClassNotFoundException e) {
e.printStackTrace();
}
return null;
}
public void setSerialized(String path, Object value) {
try {
ByteArrayOutputStream outputStream1 = new ByteArrayOutputStream();
BukkitObjectOutputStream outputStream = new BukkitObjectOutputStream(outputStream1);
outputStream.writeObject(value);
outputStream.flush();
byte[] serialized = outputStream1.toByteArray();
String encoded = Base64.getEncoder().encodeToString(serialized);
config.set(path, serialized);
save();
} catch(IOException e) {
e.printStackTrace();
}
}
}
所以我尝试使用其他解码方法，如 Base64.getMimeDecoder() 或 Base64.getUrlDecoder()
但它仍然不起作用。经过一些谷歌搜索后，我发现当 byte[] 不是 4 的倍数时，Base64 会抛出这个错误。但这一切都没有给我一个解决方法的线索。
我认为问题是你需要改变
config.set(path, serialized);
到
config.set(path, encoded);
我正在为我的世界 1.17 版编写一个 spigot 插件，并且刚刚学会了如何将序列化对象保存到 config.yml。我发现我也可以创建自定义可序列化对象，所以我做到了（我需要一个用于我的权限插件）。 现在，当我保存对象时，它保存了这个：
!!binary |-
rO0ABXNyABpvcmcuYnVra2l0LnV0aWwuaW8uV3JhcHBlcvJQR+zxEm8FAgABTAADbWFwdAAPTGphdmEvdXRpbC9NYXA7eHBzcgA3Y29tLmdvb2dsZS5jb21tb24uY29sbGVjdC5JbW11dGFibGVCaU1hcCRTZXJpYWxpemVkRm9ybQAAAAAAAAAAAgAAeHIANWNvbS5nb29nbGUuY29tbW9uLmNvbGxlY3QuSW1tdXRhYmxlTWFwJFNlcmlhbGl6ZWRGb3JtAAAAAAAAAAACAAJbAARrZXlzdAATW0xqYXZhL2xhbmcvT2JqZWN0O1sABnZhbHVlc3EAfgAFeHB1cgATW0xqYXZhLmxhbmcuT2JqZWN0O5DOWJ8QcylsAgAAeHAAAAABdAACPT11cQB+AAcAAAABdAAnbmV0Lm5pbHVzbmlsdXMucGx1Z2luLnBlcm1pc3Npb25zLkdyb3Vw
我认为这是正确的，但是当我尝试反序列化它时出现此错误：
java.lang.IllegalArgumentException: Illegal base64 character 5b
Full Error:
Could not pass event PlayerJoinEvent to CES-1.17 v1.0
org.bukkit.event.EventException: null
at org.bukkit.plugin.java.JavaPluginLoader.execute(JavaPluginLoader.java:310) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:589) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:576) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at net.minecraft.server.players.PlayerList.a(PlayerList.java:274) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at net.minecraft.server.network.LoginListener.a(LoginListener.java:192) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at net.minecraft.server.network.LoginListener.c(LoginListener.java:179) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at net.minecraft.server.network.LoginListener.tick(LoginListener.java:74) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at net.minecraft.network.NetworkManager.a(NetworkManager.java:246) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at net.minecraft.server.network.ServerConnection.c(ServerConnection.java:172) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at net.minecraft.server.MinecraftServer.b(MinecraftServer.java:1319) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at net.minecraft.server.dedicated.DedicatedServer.b(DedicatedServer.java:436) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:1200) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at net.minecraft.server.MinecraftServer.x(MinecraftServer.java:1027) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at net.minecraft.server.MinecraftServer.lambda[=11=](MinecraftServer.java:307) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
at java.lang.Thread.run(Thread.java:831) [?:?]
Caused by: java.lang.IllegalArgumentException: Illegal base64 character 5b
at java.util.Base64$Decoder.decode0(Base64.java:847) ~[?:?]
at java.util.Base64$Decoder.decode(Base64.java:566) ~[?:?]
at java.util.Base64$Decoder.decode(Base64.java:589) ~[?:?]
at net.nilusnilus.plugin.main.config.CustomConfig.getSerialized(CustomConfig.java:101) ~[?:?]
at net.nilusnilus.plugin.events.PlayerJoinEvent.onPlayerJoin(PlayerJoinEvent.java:35) ~[?:?]
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[?:?]
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?]
at org.bukkit.plugin.java.JavaPluginLoader.execute(JavaPluginLoader.java:306) ~[spigot-1.17.jar:3159-Spigot-f773da8-887bc05]
... 15 more
PLayerJoinEvent 代码：
package net.nilusnilus.plugin.events;
import net.nilusnilus.plugin.main.Util;
import net.nilusnilus.plugin.main.config.ConfigHandler;
import net.nilusnilus.plugin.main.config.CustomConfig;
import net.nilusnilus.plugin.permissions.Group;
import net.nilusnilus.plugin.permissions.GroupLoader;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
public class PlayerJoinEvent implements Listener {
private GroupLoader groupLoader;
public PlayerJoinEvent(GroupLoader groupLoader) {
this.groupLoader = groupLoader;
}
@EventHandler
public void onPlayerJoin(org.bukkit.event.player.PlayerJoinEvent event) {
String join_message = ConfigHandler.join_message;
CustomConfig players = ConfigHandler.players;
Player player = event.getPlayer();
String path = String.valueOf(player.getUniqueId());
event.setJoinMessage(Util.format(join_message, true, "<player>", event.getPlayer().getDisplayName()));
if(!players.contains(String.valueOf(player.getUniqueId()))) {
Group defaultGroup = groupLoader.getDefault();
players.setSerialized(path + ".group", defaultGroup);
}
Group group = (Group) players.getSerialized(path + ".group");
player.setDisplayName(group.getPrefix() + player.getDisplayName());
}
}
自定义配置代码：
package net.nilusnilus.plugin.main.config;
import net.nilusnilus.plugin.main.Main;
import net.nilusnilus.plugin.main.Util;
import org.bukkit.configuration.file.FileConfiguration;
import org.bukkit.configuration.file.YamlConfiguration;
import org.bukkit.util.io.BukkitObjectInputStream;
import org.bukkit.util.io.BukkitObjectOutputStream;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.util.Base64;
public class CustomConfig {
private Main plugin;
private File file;
private FileConfiguration config;
private String name;
public CustomConfig(Main plugin, String name) {
this.plugin = plugin;
this.name = name;
init();
}
private void init() {
file = new File(plugin.getDataFolder(), name);
// Check if the files doesn't exist
if(!file.exists()) {
try {
/*
* If it doesn't try copy the same file inside the resources folder
* to the plugin data folder.
*/
plugin.saveResource(name, false);
} catch(Exception e) {
/*
* If there is no premade file, create a blank one.
*/
try {
file.createNewFile();
} catch (IOException ioException) {
ioException.printStackTrace();
}
}
}
// At the end, parse the file into an FileConfiguration object.
config = YamlConfiguration.loadConfiguration(file);
}
public FileConfiguration get() {
return config;
}
public void save() {
try {
config.save(file);
} catch (IOException e) {
e.printStackTrace();
}
}
public void set(String path, Object value) {
config.set(path, value);
save();
}
public Object get(String path) {
return config.get(path);
}
public String getString(String path, boolean formatColor) {
if(!formatColor) {
return config.getString(path);
} else {
return Util.formatColor(config.getString(path));
}
}
public boolean getBoolean(String path) {
return config.getBoolean(path);
}
public boolean contains(String path) {
return config.contains(path);
}
public Object getSerialized(String path) {
try {
String encoded = config.getString(path);
byte[] deserialized = Base64.getDecoder().decode(encoded);
ByteArrayInputStream inputStream1 = new ByteArrayInputStream(deserialized);
BukkitObjectInputStream inputStream = new BukkitObjectInputStream(inputStream1);
return inputStream.readObject();
} catch(IOException | ClassNotFoundException e) {
e.printStackTrace();
}
return null;
}
public void setSerialized(String path, Object value) {
try {
ByteArrayOutputStream outputStream1 = new ByteArrayOutputStream();
BukkitObjectOutputStream outputStream = new BukkitObjectOutputStream(outputStream1);
outputStream.writeObject(value);
outputStream.flush();
byte[] serialized = outputStream1.toByteArray();
String encoded = Base64.getEncoder().encodeToString(serialized);
config.set(path, serialized);
save();
} catch(IOException e) {
e.printStackTrace();
}
}
}
所以我尝试使用其他解码方法，如 Base64.getMimeDecoder() 或 Base64.getUrlDecoder() 但它仍然不起作用。经过一些谷歌搜索后，我发现当 byte[] 不是 4 的倍数时，Base64 会抛出这个错误。但这一切都没有给我一个解决方法的线索。
我认为问题是你需要改变
config.set(path, serialized);
到
config.set(path, encoded);