springboot整合elaticjob 报错

时间:2021-08-06
本文章向大家介绍springboot整合elaticjob 报错,主要包括springboot整合elaticjob 报错使用实例、应用技巧、基本知识点总结和需要注意事项,具有一定的参考价值,需要的朋友可以参考一下。


springboot整合elaticjob报错 Invocation of init method failed; nested exception is java.lang.NullPointerException

application.properties文件配置
elaticjob.zookeeper.server-lists=10.10.80.51:2181
elaticjob.zookeeper.namespace=my-project
server.port=8766
spring.application.name=scheduler-service

zookeeper注册中心

spring.elasticjob.serverList = 10.10.80.51:2181
spring.elasticjob.namespace = elastic-job-lite-springboot

 

stockJob.cron = 0/5 * * * * ?
stockJob.shardingTotalCount = 2
stockJob.shardingItemParameters = 0=Chengdu0,1=Chengdu1

stockSimpleJob.java文件
package com.example.elasticjob.job;

import com.dangdang.ddframe.job.api.ShardingContext;
import com.dangdang.ddframe.job.api.simple.SimpleJob;
import org.springframework.stereotype.Component;

@Component
public class StockSimpleJob implements SimpleJob {

@Override
public void execute(ShardingContext shardingContext) {
    System.out.println(String.format("------Thread ID: %s, 任务总片数: %s, " +
                    "当前分片项: %s.当前参数: %s,"+
                    "当前任务名称: %s.当前任务参数: %s"
            ,
            Thread.currentThread().getId(),
            shardingContext.getShardingTotalCount(),
            shardingContext.getShardingItem(),
            shardingContext.getShardingParameter(),
            shardingContext.getJobName(),
            shardingContext.getJobParameter()

    ));

}

}
config配置类JobRegistryCenterConfig
package com.example.elasticjob.config;

import com.dangdang.ddframe.job.reg.zookeeper.ZookeeperConfiguration;
import com.dangdang.ddframe.job.reg.zookeeper.ZookeeperRegistryCenter;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.condition.ConditionalOnExpression;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
@ConditionalOnExpression("’${spring.elasticjob.serverList}’.length() > 0") //判断是否配置了zookeeper 地址
public class JobRegistryCenterConfig {

@Bean(initMethod = "init")
public ZookeeperRegistryCenter regCenter(@Value("${spring.elasticjob.serverList}") final String serverList, @Value("${spring.elasticjob.namespace}") final String namespace) {
    return new ZookeeperRegistryCenter(new ZookeeperConfiguration(serverList, namespace));
}

}
SpringJobScheduler.java

package com.example.elasticjob.config;

import com.dangdang.ddframe.job.api.simple.SimpleJob;
import com.dangdang.ddframe.job.config.JobCoreConfiguration;
import com.dangdang.ddframe.job.config.simple.SimpleJobConfiguration;
import com.dangdang.ddframe.job.lite.api.JobScheduler;
import com.dangdang.ddframe.job.lite.config.LiteJobConfiguration;
import com.dangdang.ddframe.job.lite.spring.api.SpringJobScheduler;
import com.dangdang.ddframe.job.reg.zookeeper.ZookeeperRegistryCenter;
import com.example.elasticjob.job.StockSimpleJob;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
class StockJobConfig {
@Autowired
private JobRegistryCenterConfig jobRegistryCenterConfig;
@Autowired
private ZookeeperRegistryCenter regCenter;
public StockJobConfig() {
}
@Bean(initMethod = “init”)
public JobScheduler simpleJobScheduler(final StockSimpleJob simpleJob, @Value("{stockJob.cron}") final String cron, @Value("stockJob.cron")finalStringcron,@Value("{stockJob.shardingTotalCount}") final int shardingTotalCount,
@Value("${stockJob.shardingItemParameters}") final String shardingItemParameters) {
return new SpringJobScheduler(simpleJob, regCenter, simpleJobConfigBuilder(simpleJob.getClass(), cron, shardingTotalCount, shardingItemParameters));
}
/**
*@Description 任务配置类
*/
private LiteJobConfiguration simpleJobConfigBuilder(final Class<? extends SimpleJob> jobClass,
final String cron,
final int shardingTotalCount,
final String shardingItemParameters){

    return LiteJobConfiguration
            .newBuilder(
                    new SimpleJobConfiguration(
                            JobCoreConfiguration.newBuilder(
                                    "my-jobName",cron,shardingTotalCount)
                                    .shardingItemParameters(shardingItemParameters).jobParameter("job-参数")
                                    .build()
                            ,jobClass.getCanonicalName()
                    )
            )
            .overwrite(true)
            .build();
}
/**
 * 动态添加
 * @param jobClass
 * @param cron
 * @param shardingTotalCount
 * @param shardingItemParameters
 */
public void addSimpleJobScheduler(final Class<? extends SimpleJob> jobClass,
                                  final String cron,
                                  final int shardingTotalCount,
                                  final String shardingItemParameters){
    JobCoreConfiguration coreConfig = JobCoreConfiguration.newBuilder(jobClass.getName(), cron, shardingTotalCount).shardingItemParameters(shardingItemParameters).build();
    SimpleJobConfiguration simpleJobConfig = new SimpleJobConfiguration(coreConfig, jobClass.getCanonicalName());
    JobScheduler jobScheduler = new JobScheduler(regCenter, LiteJobConfiguration.newBuilder(simpleJobConfig).build());
    jobScheduler.init();
}

}

pom

<?xml version="1.0" encoding="UTF-8"?>


4.0.0

org.springframework.boot
spring-boot-starter-parent
2.2.2.RELEASE


com.example.elasticjob
elasticjob
0.0.1-SNAPSHOT
elasticjob
Demo project for Spring Boot

<java.version>1.8</java.version>



org.springframework.boot
spring-boot-starter-web



com.github.kuhn-he
elastic-job-lite-spring-boot-starter
2.1.5



com.dangdang
elastic-job-lite-core
2.1.5


com.dangdang
elastic-job-lite-spring
2.1.5

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-devtools</artifactId>
        <scope>runtime</scope>
        <optional>true</optional>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>
 

麻烦大神帮我看下 到底是什么错误??!!!

原文地址:https://www.cnblogs.com/leasing/p/15107309.html