Cannot open Redis connection due invalid URI

We integrated Jedis with Spring in our project, tried to use Redis as our message queue to send mails. But today, I met something so weird when starting up my mail service–this “InvalidURIException” came up casually and seemed there were no patterns to reproduce the problem.

Details

There is a main method to get my redis configuration.Here is the main

public static void main(String[] args) throws Exception{
        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(
            "classpath*:spring/*.xml");
        context.start();
    }

and applicationContext-redis.xml here:

 <bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig">
      <property name="maxTotal" value="${redis.maxTotal}"/>
      <property name="maxIdle" value="${redis.maxIdle}"/>
      <property name="maxWaitMillis" value="${redis.maxWaitMillis}"/>
      <property name="testOnBorrow" value="${redis.testOnBorrow}"/>
      <property name="testOnReturn" value="${redis.testOnReturn}"/>
      <property name="testWhileIdle" value="${redis.testWhileIdle}"/>
      <property name="minEvictableIdleTimeMillis" value="${redis.minEvictableIdleTimeMillis}"/>
      <property name="timeBetweenEvictionRunsMillis" value="${redis.timeBetweenEvictionRunsMillis}"/>
      <property name="numTestsPerEvictionRun" value="${redis.numTestsPerEvictionRun}"/>
    </bean>

    <bean id = "jedisPool" class="redis.clients.jedis.JedisPool">
      <constructor-arg index="0" ref="jedisPoolConfig"/>
      <constructor-arg index="1" value="${redis.ip}"/>
      <constructor-arg index="2" value="${redis.port}" type="int"/>
      <constructor-arg index="3" value="${redis.timeout}" type="int"/>
      <!-- <constructor-arg index="4" value="${redis.password}"/> -->
    </bean>

# redis configuration
redis.ip=my ip address
redis.port=my port
redis.timeout=60000
redis.maxTotal=5000
redis.maxIdle=256
redis.maxWaitMillis=5000
redis.testOnBorrow=true
redis.testOnReturn=true
redis.testWhileIdle=true
redis.minEvictableIdleTimeMillis=60000
redis.timeBetweenEvictionRunsMillis=3000
redis.numTestsPerEvictionRun=-1

Where running this main method, I noticed there is a NPE here in redis.clients.util.JedisURIHelper.isValid(URI) Line 31 which uri.getScheme() is null.

Weird thing is that InvalidURIExceptionshow up randomly when running main method several times. Is there something wrong with configuration *.xml or initializing JedisPool or JedisPoolConfig?

Temporary solution

We changed Jedis into Spring-data-redis in out *.xml, it worked well.

Is anyone aware of what’s going on?

[mkante]

After reading the source code I figured it out. You must change your URI to: redis.url= redis://{ip_address}:{port}/{database} example: redis.url= redis://localhost:6379/3

[workcheng]

I fix it，by do this: http://blog.csdn.net/running_snail_/article/details/51679538