redis--bugger分析

记录一下在开发中使用redis出现的错误和解决方法

redis.clients.jedis.exceptions.JedisConnectionException: Could not get a resource from the pool

at redis.clients.util.Pool.getResource(Pool.java:50)

at redis.clients.jedis.JedisPool.getResource(JedisPool.java:86)

at com.taotao.rest.Test.testSpringJedisSingle(Test.java:23)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:498)

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.InvokeMethod.evaluate(InvokeMethod.java:17)

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:86)

at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

Caused by: java.util.NoSuchElementException: Unable to validate object

at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:506)

at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:363)

at redis.clients.util.Pool.getResource(Pool.java:48)

... 25 more

 

 

在spring整合redis时如果遇见这样的错误，解决方法是在连接池配置中把testOnBorrow设置成false

<!-- 在获取连接的时候检查有效性, 默认false -->

<property name="testOnBorrow" value="false" />

如果修改后测试还出现下面的错误，这时候需要修改redis配置文件redis.conf 

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:117)

at redis.clients.jedis.Protocol.process(Protocol.java:142)

at redis.clients.jedis.Protocol.read(Protocol.java:196)

at redis.clients.jedis.Connection.readProtocolWithCheckingBroken(Connection.java:288)

at redis.clients.jedis.Connection.getBinaryBulkReply(Connection.java:207)

at redis.clients.jedis.Connection.getBulkReply(Connection.java:196)

at redis.clients.jedis.Jedis.get(Jedis.java:98)

at com.taotao.rest.Test.testSpringJedisSingle(Test.java:24)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:498)

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.InvokeMethod.evaluate(InvokeMethod.java:17)

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:86)

at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

 

 

出现这样的错误是因为你启动redis服务时开启了保护模式

保护模式，默认开启。要是配置里没有指定bind和密码。开启该参数后，redis只会本地进行访问，拒绝外部访问。要是开启了密码和bind，可以开启。否则最好关闭，设置为no。

 

protected-mode no

 

 

 

 

 

 

 

redis.clients.jedis.exceptions.JedisConnectionException: Could not get a resource from the pool

at redis.clients.util.Pool.getResource(Pool.java:50)

at redis.clients.jedis.JedisPool.getResource(JedisPool.java:86)

at com.taotao.rest.Test.testSpringJedisSingle(Test.java:23)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:498)

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.InvokeMethod.evaluate(InvokeMethod.java:17)

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:86)

at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

Caused by: redis.clients.jedis.exceptions.JedisConnectionException: java.net.ConnectException: Connection refused: connect

at redis.clients.jedis.Connection.connect(Connection.java:155)

at redis.clients.jedis.BinaryClient.connect(BinaryClient.java:83)

at redis.clients.jedis.BinaryJedis.connect(BinaryJedis.java:1643)

at redis.clients.jedis.JedisFactory.makeObject(JedisFactory.java:85)

at org.apache.commons.pool2.impl.GenericObjectPool.create(GenericObjectPool.java:861)

at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:458)

at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:363)

at redis.clients.util.Pool.getResource(Pool.java:48)

... 25 more

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:350)

at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)

at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)

at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)

at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)

at java.net.Socket.connect(Socket.java:589)

at redis.clients.jedis.Connection.connect(Connection.java:149)

... 32 more

 

redis拒绝我们的连接是因为redis.conf 文件中默认打开bind 127.0.0.1

打开这个设置后redis 只接收来自于该 IP 地址的请求，如果不进行设置，那么将处理所有请求

所有要把这个注释掉

以上配置改完全部要重启redis服务

以上部分为参考网上经验.

原文：https://blog.youkuaiyun.com/only1994/article/details/52785306

 

自己又遇到的问题

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.

译文：

由于启用了保护模式，没有指定绑定地址，也没有向客户机请求身份验证密码，所以拒绝Redis在保护模式下运行。在这种模式下，连接只能从环回接口接受。如果你想从外部计算机连接到复述,你可能采取的解决方案:

1)只是禁用保护模式发送命令的配置设置保护模式没有从loopback接口连接到复述同一主机服务器正在运行,然而确保复述,不是公开从互联网访问如果你这样做。使用配置重写使此更改永久。

2)或者，您可以通过编辑Redis配置文件来禁用受保护模式，并将受保护模式选项设置为“no”，然后重新启动服务器。

3)如果您只是为了测试而手动启动服务器，请使用“——保护模式no”选项重新启动服务器。

4)设置绑定地址或身份验证密码。注意:您只需要做上述其中一件事，服务器就可以开始接受来自外部的连接。

原因分析一：redis没有设置密码

设置密码方法：

127.0.0.1:6379> config get requirepass 1) "requirepass" 2) "" 127.0.0.1:6379> config set requirepass "admin" OK

 

设置密码后报错：

redis.clients.jedis.exceptions.JedisDataException: NOAUTH Authentication required.

//原因：在redis中设置了密码，我们在服务器中需要做密码配对

NOAUTH Authentication required.翻译过来就是：NOAUTH认证要求。

就是你没有给它权限，进行访问；

Jedis jedis = new Jedis("IP", 6379); jedis.auth("你给redis设置的密码");//加入这一段代码

 

第二天开启项目报错

java.net.SocketTimeoutException: connect timed out

分析：看到超时，第一个要想到防火墙没关

关闭防火墙，重启服务器错误变成昨天的安全设置问题，去redis中设置安全问题

这里还有考虑redis.properties中配置的问题，比如本地测试，局域网分发的ip每天都会变

 

之前项目是在一个简单的项目上做的测试，现在在项目整合中加入redis后报错

Caused by: java.lang.ClassNotFoundException: redis.clients.jedis.JedisPoolConfig

分析：在网上查了很多资料

一般原因如下：jar包冲突、jar版本低。我对jar包进行了多个版本尝试，最后还是不行

最终解决方案：删除tomcat中的项目在导入，正确。

在配置文件中点击<bean id="poolConfig" class="redis.clients.jedis.JedisPoolConfig">

发现能进入相应的包中。

最终原因：导入的jar包没有同步到tomcat中

 

在整合项目是发现缓存要在父容器中配置，当在父容器中配置结束，发现报错

org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: ...

The prefix "cache" for element "cache:annotation-driven" is not bound.

分析：缓存没绑定，一看到没绑定就要想到，上面的xml文件没配

解决：

添加红色加粗内容

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"

xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jdbc="http://www.springframework.org/schema/jdbc"

xmlns:context="http://www.springframework.org/schema/context"

xmlns:mvc="http://www.springframework.org/schema/mvc"

xmlns:cache="http://www.springframework.org/schema/cache"

xsi:schemaLocation="

http://www.springframework.org/schema/cache

http://www.springframework.org/schema/cache/spring-cache.xsd

     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd

     http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd

     http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd

     http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd

     http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd

     http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">