项目解析-spring异步线程池配置与使用

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一、Spring配置

实际项目简单配置

<bean        class="org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor">        <property name="corePoolSize" value="10" />        <property name="maxPoolSize" value="10" />        <property name="queueCapacity" value="1000" />    </bean>

较完整参考

<!-- 异步线程池 -->      <bean id="threadPool" class="org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor">        <!-- 核心线程数  -->        <property name="corePoolSize" value="3" />        <!-- 最大线程数 -->        <property name="maxPoolSize" value="20" />        <!-- 队列最大长度 >=mainExecutor.maxSize -->        <property name="queueCapacity" value="1000" />        <!-- 线程池维护线程所允许的空闲时间 -->        <property name="keepAliveSeconds" value="300" />        <!-- 线程池对拒绝任务(无线程可用)的处理策略 -->        <property name="rejectedExecutionHandler">          <bean class="java.util.concurrent.ThreadPoolExecutor$CallerRunsPolicy" />        </property>      </bean>

二、Service中注入

    @Autowired    protected ThreadPoolTaskExecutor taskExecutor;

三、service中方法使用

项目中用来异步记log

public void doSomething(){    threadPool.execute(new Runnable() {            @Override            public void run() {                //异步执行耗时的业务任务            }        });}

@Transactional    public void logBomInfo(final int loggingKey, final String appId,            final Object bom) {        try {            taskExecutor.execute(new Runnable() {                @Override                public void run() {                    try {                        LogBomInfo logBomInfo = new LogBomInfo();                        logBomInfo.setBomInfoId(loggingKey);                        logBomInfo.setAppId(appId);                        logBomInfo.setBom(jsonMapper.writeValueAsString(bom));                        logBomInfo.setBizkey(getBomBizKey(bom));                        logBomInfoDAO.insertLogBomInfo(logBomInfo);                        if (logger.isDebugEnabled()) {                            logger.debug("保存日志成功, bomInfoId:" + loggingKey);                        }                    } catch (Exception ex) {                        logger.error("保存日志发生错误", ex);                    }                }            });        } catch (Exception ex) {            logger.error("写入日志表失败", ex);        }    }

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