本帖最后由 _xiaomin_ 于 2022-3-26 03:35 编辑
插件一：
插件二：
vps没开3306，数据库服务器开了3306
别回答关闭数据库！我要用数据库不然也不会问
插件一：
| [00:56:15 WARN]: com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure [00:56:15 WARN]: [00:56:15 WARN]: The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. [00:56:15 WARN]: at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174) [00:56:15 WARN]: at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64) [00:56:15 WARN]: at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:828) [00:56:15 WARN]: at com.mysql.cj.jdbc.ConnectionImpl.(ConnectionImpl.java:448) [00:56:15 WARN]: at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:241) [00:56:15 WARN]: at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198) [00:56:15 WARN]: at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:681) [00:56:15 WARN]: at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:229) [00:56:15 WARN]: at InventoryRollbackPlus-1.6.6.jar//me.danjono.inventoryrollback.data.MySQL.openConnection(MySQL.java:78) [00:56:15 WARN]: at InventoryRollbackPlus-1.6.6.jar//me.danjono.inventoryrollback.data.MySQL.createTables(MySQL.java:101) [00:56:15 WARN]: at InventoryRollbackPlus-1.6.6.jar//me.danjono.inventoryrollback.InventoryRollback.startupTasks(InventoryRollback.java:96) [00:56:15 WARN]: at InventoryRollbackPlus-1.6.6.jar//com.nuclyon.technicallycoded.inventoryrollback.InventoryRollbackPlus.onEnable(InventoryRollbackPlus.java:57) [00:56:15 WARN]: at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:264) [00:56:15 WARN]: at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) [00:56:15 WARN]: at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:501) [00:56:15 WARN]: at org.bukkit.craftbukkit.v1_18_R2.CraftServer.enablePlugin(CraftServer.java:559) [00:56:15 WARN]: at org.bukkit.craftbukkit.v1_18_R2.CraftServer.enablePlugins(CraftServer.java:473) [00:56:15 WARN]: at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:664) [00:56:15 WARN]: at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:431) [00:56:15 WARN]: at net.minecraft.server.dedicated.DedicatedServer.e(DedicatedServer.java:316) [00:56:15 WARN]: at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:1163) [00:56:15 WARN]: at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:315) [00:56:15 WARN]: at java.base/java.lang.Thread.run(Thread.java:833) [00:56:15 WARN]: Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure [00:56:15 WARN]: [00:56:15 WARN]: The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. [00:56:15 WARN]: at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) [00:56:15 WARN]: at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77) [00:56:15 WARN]: at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) [00:56:15 WARN]: at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499) [00:56:15 WARN]: at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:480) [00:56:15 WARN]: at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61) [00:56:15 WARN]: at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105) [00:56:15 WARN]: at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151) [00:56:15 WARN]: at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167) [00:56:15 WARN]: at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89) [00:56:15 WARN]: at com.mysql.cj.NativeSession.connect(NativeSession.java:120) [00:56:15 WARN]: at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:948) [00:56:15 WARN]: at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:818) [00:56:15 WARN]: ... 20 more [00:56:15 WARN]: Caused by: java.net.ConnectException: 连接超时 [00:56:15 WARN]: at java.base/sun.nio.ch.Net.connect0(Native Method) [00:56:15 WARN]: at java.base/sun.nio.ch.Net.connect(Net.java:579) [00:56:15 WARN]: at java.base/sun.nio.ch.Net.connect(Net.java:568) [00:56:15 WARN]: at java.base/sun.nio.ch.NioSocketImpl.connect(NioSocketImpl.java:588) [00:56:15 WARN]: at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:327) [00:56:15 WARN]: at java.base/java.net.Socket.connect(Socket.java:633) [00:56:15 WARN]: at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:156) [00:56:15 WARN]: at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63) [00:56:15 WARN]: ... 23 more |
插件二：
| [00:56:28 WARN]: com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure [00:56:28 WARN]: at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174) [00:56:28 WARN]: at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64) [00:56:28 WARN]: at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:828) [00:56:28 WARN]: at com.mysql.cj.jdbc.ConnectionImpl.(ConnectionImpl.java:448) [00:56:28 WARN]: at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:241) [00:56:28 WARN]: at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198) [00:56:28 WARN]: at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:681) [00:56:28 WARN]: at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:229) [00:56:28 WARN]: at CoreProtect-20.1-zh-CN.jar//net.coreprotect.database.Database.getConnection(Database.java:143) [00:56:28 WARN]: at CoreProtect-20.1-zh-CN.jar//net.coreprotect.database.Database.createDatabaseTables(Database.java:320) [00:56:28 WARN]: at CoreProtect-20.1-zh-CN.jar//net.coreprotect.config.ConfigHandler.loadDatabase(ConfigHandler.java:205) [00:56:28 WARN]: at CoreProtect-20.1-zh-CN.jar//net.coreprotect.config.ConfigHandler.performInitialization(ConfigHandler.java:367) [00:56:28 WARN]: at CoreProtect-20.1-zh-CN.jar//net.coreprotect.CoreProtect.onEnable(CoreProtect.java:71) [00:56:28 WARN]: at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:264) [00:56:28 WARN]: at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) [00:56:28 WARN]: at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:501) [00:56:28 WARN]: at org.bukkit.craftbukkit.v1_18_R2.CraftServer.enablePlugin(CraftServer.java:559) [00:56:28 WARN]: at org.bukkit.craftbukkit.v1_18_R2.CraftServer.enablePlugins(CraftServer.java:473) [00:56:28 WARN]: at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:664) [00:56:28 WARN]: at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:431) [00:56:28 WARN]: at net.minecraft.server.dedicated.DedicatedServer.e(DedicatedServer.java:316) [00:56:28 WARN]: at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:1163) [00:56:28 WARN]: at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:315) [00:56:28 WARN]: at java.base/java.lang.Thread.run(Thread.java:833) [00:56:28 WARN]: Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure [00:56:28 WARN]: at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) [00:56:28 WARN]: at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77) [00:56:28 WARN]: at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) [00:56:28 WARN]: at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499) [00:56:28 WARN]: at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:480) [00:56:28 WARN]: at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61) [00:56:28 WARN]: at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105) [00:56:28 WARN]: at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151) [00:56:28 WARN]: at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167) [00:56:28 WARN]: at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89) [00:56:28 WARN]: at com.mysql.cj.NativeSession.connect(NativeSession.java:120) [00:56:28 WARN]: at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:948) [00:56:28 WARN]: at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:818) [00:56:28 WARN]: ... 21 more [00:56:28 WARN]: Caused by: java.net.SocketTimeoutException: Connect timed out [00:56:28 WARN]: at java.base/sun.nio.ch.NioSocketImpl.timedFinishConnect(NioSocketImpl.java:546) [00:56:28 WARN]: at java.base/sun.nio.ch.NioSocketImpl.connect(NioSocketImpl.java:597) [00:56:28 WARN]: at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:327) [00:56:28 WARN]: at java.base/java.net.Socket.connect(Socket.java:633) [00:56:28 WARN]: at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:156) [00:56:28 WARN]: at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63) [00:56:28 WARN]: ... 24 more |
vps没开3306，数据库服务器开了3306
别回答关闭数据库！我要用数据库不然也不会问
已自行解决： MySql数据库没开公网访问权限。设置白名单后就可以了
本帖最后由 L_Panda 于 2022-3-26 01:25 编辑
连接超时，检查mysql服务是否正常启动或者地址是否正确，外网的话查端口是否放行
连接超时，检查mysql服务是否正常启动或者地址是否正确，外网的话查端口是否放行