1.连接用java连接redis时报如下错误，连接超时
Exception in thread “main” redis.clients.jedis.exceptions.JedisConnectionException: java.net.SocketException: Software caused connection abort: recv failed
at redis.clients.util.RedisInputStream.ensureFill(RedisInputStream.java:202)
at redis.clients.util.RedisInputStream.readByte(RedisInputStream.java:40)
at redis.clients.jedis.Protocol.process(Protocol.java:151)
at redis.clients.jedis.Protocol.read(Protocol.java:215)
at redis.clients.jedis.Connection.readProtocolWithCheckingBroken(Connection.java:340)
at redis.clients.jedis.Connection.getStatusCodeReply(Connection.java:239)
at redis.clients.jedis.Jedis.set(Jedis.java:121)
at com.hy.redis_maven.App.main(App.java:17)
Caused by: java.net.SocketException: Software caused connection abort: recv failed
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(Unknown Source)
at java.net.SocketInputStream.read(Unknown Source)
at java.net.SocketInputStream.read(Unknown Source)
at redis.clients.util.RedisInputStream.ensureFill(RedisInputStream.java:196)
… 7 more
出现这个问题的原因是redis.conf文件中bind 127.0.0.1,这导致redis只映射本机
解决办法，将bind 127.0.0.1注释就行！
2.连接redis时碰到的第二个问题，没有设置密码，但是发送了验证
Exception in thread “main” redis.clients.jedis.exceptions.JedisDataException: DENIED Redis is running in protected mode because protected mode is enabled, no bind address was specified, no authentication password is requested to clients. In this mode connections are only accepted from the loopback interface. If you want to connect from external computers to Redis you may adopt one of the following solutions: 1) Just disable protected mode sending the command ‘CONFIG SET protected-mode no’ from the loopback interface by connecting to Redis from the same host the server is running, however MAKE SURE Redis is not publicly accessible from internet if you do so. Use CONFIG REWRITE to make this change permanent. 2) Alternatively you can just disable the protected mode by editing the Redis configuration file, and setting the protected mode option to ‘no’, and then restarting the server. 3) If you started the server manually just for testing, restart it with the ‘–protected-mode no’ option. 4) Setup a bind address or an authentication password. NOTE: You only need to do one of the above things in order for the server to start accepting connections from the outside.
at redis.clients.jedis.Protocol.processError(Protocol.java:127)
at redis.clients.jedis.Protocol.process(Protocol.java:161)
at redis.clients.jedis.Protocol.read(Protocol.java:215)
at redis.clients.jedis.Connection.readProtocolWithCheckingBroken(Connection.java:340)
at redis.clients.jedis.Connection.getStatusCodeReply(Connection.java:239)
at redis.clients.jedis.Jedis.set(Jedis.java:121)
at com.hy.redis_maven.App.main(App.java:17)
大概说的就是没有设置密码，但发送了密码验证
解决方法：在redis.conf文件中设置requirepass password,将注释去掉，然后在启动redis服务器，需要指定配置文件
**src/redis-server../redis4.0/redis.conf**
这样就解决了密码验证问题，客户端代码如下：
public class App {
public static void main(String[] args) {
Jedis jedis = new Jedis("192.168.190.120", 6379);
jedis.auth("zhoupengyong");
jedis.set("name", "zhoupengyong");
System.out.println(jedis.get("name"));
}
}
