Quartz SpringMvc Mybatis操作數據庫，空指針（nullpointexception）異常

quartz動態定時任務在執行時是以線程的形式在後臺定期執行,Mybatis鏈接數據庫基於spring框架運行，如果想要通過在quartz中藉助mybatis操作數據庫需要進行如下配置：

工具類:

package com.skyinfo.report.web.quarz.utils;


import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

/**
 * quarz 實現mybatis bean
 * @author wb
 */
@Component
public class SpringUtil implements ApplicationContextAware {
    private static ApplicationContext applicationContext;
    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        if(SpringUtil.applicationContext == null) {
            SpringUtil.applicationContext = applicationContext;
        }
    }

    //獲取applicationContext
    public static ApplicationContext getApplicationContext(){
        return applicationContext;
    }

    //通過name獲取 Bean.
    public static Object getBean(String name){
        return getApplicationContext().getBean(name);
    }

    //通過class獲取Bean.
    public static <T> T getBean(Class<T> clazz){
        return getApplicationContext().getBean(clazz);
    }

    //通過name,以及Clazz返回指定的Bean
    public static <T> T getBean(String name,Class<T> clazz){
        return getApplicationContext().getBean(name, clazz);
    }

}

quartz中job藉助mybatis操作數據庫 

 

public class JtsjRyzpxxRunJob implements Job {

    private JdbcConnectService jdbcConnectService;


    

    public void execute(JobExecutionContext context) {
        JobDataMap jobDataMap = context.getMergedJobDataMap();
        String rwbh = jobDataMap.getString("rwbh");

        JobManagerService jobManagerService = null;
       //將需要操作的service從bean中取出注入到線程中使用
       jobManagerService = SpringUtil.getBean(JobManagerService.class);
    }

   
}

藉助工具類實現ApplicationContextAware 接口，重寫方法可以將service注入到Job中，並藉助service操作數據庫