今天使用jedis客戶端api連接遠(yuǎn)程連接redis的時(shí)候，一直報(bào)錯(cuò)，如下：
redis.clients.jedis.exceptions.JedisConnectionException: java.net.ConnectException: Connection refused: connect
at redis.clients.jedis.Connection.connect(Connection.java:164)
at redis.clients.jedis.BinaryClient.connect(BinaryClient.java:80)
at redis.clients.jedis.Connection.sendCommand(Connection.java:100)
at redis.clients.jedis.Connection.sendCommand(Connection.java:91)
at redis.clients.jedis.BinaryClient.auth(BinaryClient.java:551)
at redis.clients.jedis.BinaryJedis.auth(BinaryJedis.java:2047)
at sy.test.TestJedis.setUp(TestJedis.java:18)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: java.net.ConnectException: Connection refused: connect
at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:579)
at redis.clients.jedis.Connection.connect(Connection.java:158)
... 30 more
原來(lái)是redis默認(rèn)只能localhost登錄，所以需要開(kāi)啟遠(yuǎn)程登錄。解決方法如下：
在redis的配置文件redis.conf中，找到bind localhost注釋掉。
注釋掉本機(jī),局域網(wǎng)內(nèi)的所有計(jì)算機(jī)都能訪問(wèn)。
band localhost 只能本機(jī)訪問(wèn),局域網(wǎng)內(nèi)計(jì)算機(jī)不能訪問(wèn)。
bind 局域網(wǎng)IP 只能局域網(wǎng)內(nèi)IP的機(jī)器訪問(wèn), 本地localhost都無(wú)法訪問(wèn)。
驗(yàn)證方法：
[root@mch ~]# ps -ef | grep redis
root 2175 1 0 08:15 ? 00:00:05 /usr/local/bin/redis-server *:6379
/usr/local/bin/redis-server *:6379 中通過(guò)"*"就可以看出此時(shí)是允許所有的ip連接登錄到這臺(tái)redis服務(wù)上。
注意事項(xiàng)：
今天再設(shè)置遠(yuǎn)程訪問(wèn)的時(shí)候，在啟動(dòng)Redis的時(shí)候報(bào)錯(cuò)：Creating Server TCP listening socket *:6379: unable to bind socket（Redis一定不能設(shè)置成后臺(tái)運(yùn)行，否則終端不會(huì)有任何錯(cuò)誤顯示）。
上網(wǎng)搜索說(shuō)各種原因的都有，有的說(shuō)是Redis版本的bug(我用的版本是3.2.0)，我是參考以下幾篇文章解決了這個(gè)問(wèn)題：
https://github.com/antirez/redis/issues/3241
http://stackoverflow.com/questions/8537254/redis-connect-to-remote-server
我沒(méi)有注釋掉bind 127.0.0.1，而是將bind 127.0.0.1 改成了bind 0.0.0.0。
以上就是本文的全部?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持腳本之家。
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