redis报错汇总

单元测试时,使用jedis通常遇到如下报错

实例报错->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password访问需要密码redis服务端设置密码))

NOAUTH Authentication required.

 出现错误,说明jedis客户端配置文件没有password

        2.密码错误

ERR invalid password

出现错误,说明密码错了。

需要注意:

如下配置错误的,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,配置可以简单

    <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地址端口构造参数,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 [applicationContextredis.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>

@RunWith(SpringRunner.class)//spring整合JUnit4
@ContextConfiguration(locations={“classpath:applicationContextredis.xml”})//加载spring配置文件
public class BaseRedisTest {
}

原文地址:https://blog.csdn.net/u011149152/article/details/132476709

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