redis报错汇总
在单元测试时,使用jedis通常遇到如下报错:
实例化报错->连接报错->权限报错。此报错是有顺序的:例如,若连接报错,说明实例化完成,即配置文件配对了。若权限报错,说明连接通了,但密码错误。若实例化就报错,说明配置文件配错了,没法启动redis客户端,更别说去连接了。
具体报错如下:
1.实例化报错
Failed to load ApplicationContext.
Error creating bean with name 'jedisPool' defined in class path resource [applicationContext-redis.xml]:
Unsatisfied dependency expressed through constructor parameter 0:
Ambiguous argument values for parameter of type [org.apache.commons.pool2.impl.GenericObjectPoolConfig]
- did you specify the correct bean references as arguments?
出现此错误,通常是配置文件出错:配置JedisPool出错。
2.连接报错
connect timed out
出现此错误,通常是网络问题。一般在公司里,内网外网防火墙等各种网络情况。记得切换网络。
3.权限报错
1.没有配password(访问需要密码(redis服务端设置了密码))
NOAUTH Authentication required.
出现此错误,说明jedis客户端配置文件没有配password。
2.密码错误
ERR invalid password
出现此错误,说明密码错了。
需要注意:
如下配置是错误的,这也是导致实例化报错的主要原因。
<bean id="jedisPool" class="redis.clients.jedis.JedisPool">
<constructor-arg name="host" value="192.168.100.12"/>
<constructor-arg name="port" value="6379"/>
<constructor-arg name="password" value="xxx"/>
</bean>
查看jedis源码,发现设置密码,JedisPool的构造参数如下:
public JedisPool(GenericObjectPoolConfig poolConfig, String host, int port, int timeout, String password) {
this(poolConfig, host, port, timeout, password, 0, (String)null);
}
即,需要配置如下参数:
<bean class="redis.clients.jedis.JedisPool" id="jedisPool" >
<constructor-arg name="host" value="192.168.100.12"></constructor-arg>
<constructor-arg name="port" value="6379"></constructor-arg>
<constructor-arg name="password" value="xxx"></constructor-arg>
<constructor-arg name="timeout" value="3000"></constructor-arg>
<constructor-arg name="poolConfig" ref="jedisPoolConfig"></constructor-arg>
</bean>
<bean class="redis.clients.jedis.JedisPoolConfig" id="jedisPoolConfig">
<property name="maxIdle" value="300" />
<property name="maxTotal" value="1000" />
<property name="maxWaitMillis" value="1000" />
<property name="testOnBorrow" value="false" />
<property name="blockWhenExhausted" value="false" />
</bean>
如果redis没有设置密码的话,配置就可以很简单:
<bean id="jedisPool" class="redis.clients.jedis.JedisPool">
<constructor-arg name="host" value="192.168.100.12"/>
<constructor-arg name="port" value="6379"/>
</bean>
因为JedisPool提供了只需要ip地址和端口的构造参数,如下:
public JedisPool(String host, int port) {
this(new GenericObjectPoolConfig(), host, port, 2000, (String)null, 0, (String)null);
}
补充:
bean的xml文件格式:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd">
<!-- 这中间写bean -->
<!-- <bean id="jedisPool" class="redis.clients.jedis.JedisPool">-->
<!-- <constructor-arg name="host" value="192.168.100.12"/>-->
<!-- <constructor-arg name="port" value="6379"/>-->
<!-- </bean>-->
</beans>
单元测试类:
@RunWith(SpringRunner.class)//spring整合JUnit4
@ContextConfiguration(locations={"classpath:applicationContext-redis.xml"})//加载spring配置文件
public class BaseRedisTest {
}
==================分割线====================
文章到此已经结束,以下是紫薯布丁
Failed to load ApplicationContext.
Error creating bean with name 'jedisPool' defined in class path resource [applicationContext-redis.xml]:
Unsatisfied dependency expressed through constructor parameter 0:
Ambiguous argument values for parameter of type [org.apache.commons.pool2.impl.GenericObjectPoolConfig]
- did you specify the correct bean references as arguments?
connect timed out
NOAUTH Authentication required.
ERR invalid password
<bean id="jedisPool" class="redis.clients.jedis.JedisPool">
<constructor-arg name="host" value="192.168.100.12"/>
<constructor-arg name="port" value="6379"/>
<constructor-arg name="password" value="xxx"/>
</bean>
public JedisPool(GenericObjectPoolConfig poolConfig, String host, int port, int timeout, String password) {
this(poolConfig, host, port, timeout, password, 0, (String)null);
}
<bean class="redis.clients.jedis.JedisPool" id="jedisPool" >
<constructor-arg name="host" value="192.168.100.12"></constructor-arg>
<constructor-arg name="port" value="6379"></constructor-arg>
<constructor-arg name="password" value="xxx"></constructor-arg>
<constructor-arg name="timeout" value="3000"></constructor-arg>
<constructor-arg name="poolConfig" ref="jedisPoolConfig"></constructor-arg>
</bean>
<bean class="redis.clients.jedis.JedisPoolConfig" id="jedisPoolConfig">
<property name="maxIdle" value="300" />
<property name="maxTotal" value="1000" />
<property name="maxWaitMillis" value="1000" />
<property name="testOnBorrow" value="false" />
<property name="blockWhenExhausted" value="false" />
</bean>
<bean id="jedisPool" class="redis.clients.jedis.JedisPool">
<constructor-arg name="host" value="192.168.100.12"/>
<constructor-arg name="port" value="6379"/>
</bean>
public JedisPool(String host, int port) {
this(new GenericObjectPoolConfig(), host, port, 2000, (String)null, 0, (String)null);
}
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd">
<!-- 这中间写bean -->
<!-- <bean id="jedisPool" class="redis.clients.jedis.JedisPool">-->
<!-- <constructor-arg name="host" value="192.168.100.12"/>-->
<!-- <constructor-arg name="port" value="6379"/>-->
<!-- </bean>-->
</beans>文章来源:https://www.toymoban.com/news/detail-676313.html
@RunWith(SpringRunner.class)//spring整合JUnit4
@ContextConfiguration(locations={"classpath:applicationContext-redis.xml"})//加载spring配置文件
public class BaseRedisTest {
}文章来源地址https://www.toymoban.com/news/detail-676313.html
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