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redis jedis 单元测试 报错集锦 汇总 junit

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.没有配置password(如果需要密码)**
NOAUTH Authentication required.

出现此错误,说明配置文件没有配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">

</beans>

@RunWith(SpringRunner.class)//spring整合JUnit4
@ContextConfiguration(locations={"classpath:applicationContext-redis.xml"})//加载spring配置文件
public class BaseRedisTest {
}


本文转载自: https://blog.csdn.net/u011149152/article/details/132476709
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