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

java 复制代码

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

java 复制代码

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）

java 复制代码

NOAUTH Authentication required.

出现此错误，说明配置文件没有配password。

2.密码错误

java 复制代码

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。

XML 复制代码

    <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：

java 复制代码

    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：

XML 复制代码

    <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：

XML 复制代码

    <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：

java 复制代码

    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 复制代码

<?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：

java 复制代码

@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

<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);

}

<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>

<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 {

}

redis jedis 单元测试 报错集锦 汇总 junit

redis报错汇总

1.实例化报错

2.连接报错

3.权限报错

redis jedis 单元测试报错集锦汇总 junit