io.lettuce.core.RedisConnectionException: Unable to connect to 127.0.0.1:6379
/*
* Copyright 2011-2022 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.lettuce.core;
import java.net.SocketAddress;
/**
* Exception for connection failures.
*
* @author Mark Paluch
*/
@SuppressWarnings("serial")
public class RedisConnectionException extends RedisException {
/**
* Create a {@code RedisConnectionException} with the specified detail message.
*
* @param msg the detail message.
*/
public RedisConnectionException(String msg) {
super(msg);
}
/**
* Create a {@code RedisConnectionException} with the specified detail message and nested exception.
*
* @param msg the detail message.
* @param cause the nested exception.
*/
public RedisConnectionException(String msg, Throwable cause) {
super(msg, cause);
}
/**
* Create a new {@link RedisConnectionException} given {@link SocketAddress} and the {@link Throwable cause}.
*
* @param remoteAddress remote socket address.
* @param cause the nested exception.
* @return the {@link RedisConnectionException}.
* @since 4.4
*/
public static RedisConnectionException create(SocketAddress remoteAddress, Throwable cause) {
return create(remoteAddress == null ? null : remoteAddress.toString(), cause);
}
/**
* Create a new {@link RedisConnectionException} given {@code remoteAddress} and the {@link Throwable cause}.
*
* @param remoteAddress remote address.
* @param cause the nested exception.
* @return the {@link RedisConnectionException}.
* @since 5.1
*/
public static RedisConnectionException create(String remoteAddress, Throwable cause) {
if (remoteAddress == null) {
if (cause instanceof RedisConnectionException) {
return new RedisConnectionException(cause.getMessage(), cause.getCause());
}
return new RedisConnectionException(null, cause);
}
return new RedisConnectionException(String.format("Unable to connect to %s", remoteAddress), cause);
}
/**
* Create a new {@link RedisConnectionException} given {@link Throwable cause}.
*
* @param cause the exception.
* @return the {@link RedisConnectionException}.
* @since 5.1
*/
public static RedisConnectionException create(Throwable cause) {
if (cause instanceof RedisConnectionException) {
return new RedisConnectionException(cause.getMessage(), cause.getCause());
}
return new RedisConnectionException("Unable to connect", cause);
}
/**
* @param error the error message.
* @return {@code true} if the {@code error} message indicates Redis protected mode.
* @since 5.0.1
*/
public static boolean isProtectedMode(String error) {
return error != null && error.startsWith("DENIED");
}
}
原文地址:https://blog.csdn.net/spencer_tseng/article/details/134609954
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