import org.apache.tomcat.util.threads.ThreadPoolExecutor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.task.TaskExecutor;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;

/**
 * 线程池相关配置
 */
@Configuration
public class AsyncConfig {
    @Bean
    public TaskExecutor executor(){
        ThreadPoolTaskExecutor executor=new ThreadPoolTaskExecutor();
        executor.setCorePoolSize(10);//核心线程数
        executor.setMaxPoolSize(50);  //最大线程数
        executor.setQueueCapacity(1000); //队列大小
        executor.setKeepAliveSeconds(300); //线程最大空闲时间
        executor.setThreadNamePrefix("fsx-Executor-"); //指定用于新创建的线程名称的前缀。
        executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
        return executor;
    }
}

二、Durid数据库连接池

Durid连接池配置主要为了监控由 Druid 数据源 管理的数据库连接性能,可以方便的从web页面查看数据库连接性能.同时需配置需过滤的请求文件和类型.

2.1 ServletRegistrationBean

在ServletRegistrationBean配置中,需提供durid管理页面的访问路径,通过addInitParameter方法设置(deny)黑名单和(allow)白名单,(loginUsername)登录用户名和(loginPassword)密码,以及是否开启重置数据功能(resetEnable).

2.2 FilterRegistrationBean

在FilterRegistrationBean可以通过addUrlPatterns配置拦截的路径,通过addInitParameter中的exclusions参数配置可直接访问的文件.

注:配置可直接访问文件以保证管理页面可正常显示

2.3 示例代码

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;

/**
 * @author seaua
 */
@Configuration
public class DruidConfig {

	private final Logger logger = LoggerFactory.getLogger(DruidConfig.class);

	@Bean
	public ServletRegistrationBean druidServlet() {
		ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new StatViewServlet(),
				"/druid/*");
		// IP白名单
		servletRegistrationBean.addInitParameter("allow", "*");
		// IP黑名单(共同存在时，deny优先于allow)
		servletRegistrationBean.addInitParameter("deny", "192.168.1.100");
		// 控制台管理用户
		servletRegistrationBean.addInitParameter("loginUsername", "admin");
		servletRegistrationBean.addInitParameter("loginPassword", "123456");
		// 是否能够重置数据 禁用HTML页面上的“Reset All”功能
		servletRegistrationBean.addInitParameter("resetEnable", "false");
		return servletRegistrationBean;
	}

	@Bean
	public FilterRegistrationBean filterRegistrationBean() {
		FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(new WebStatFilter());
		filterRegistrationBean.addUrlPatterns("/*");
		filterRegistrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");
		return filterRegistrationBean;
	}
}

三、Redis

Redis数据库相关配置用于配置Redis的存储和序列化格式.

3.1 setKeySerializer

使用 StringRedisSerializer 将键序列化为普通字符串格式，便于可读

3.2 setValueSerializer

使用自定义的 JsonRedisSerializer 将值序列化为 JSON 格式。

3.3 setHashKeySerializer

将Hash键序列化为普通的字符串格式,方便阅读.

3.4 setHashValueSerializer

使用自定义的JsonRedisSerializer将Hash值序列化为Json格式。

3.5 示例代码

import javax.annotation.Resource;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.StringRedisSerializer;

import com.mozhi.archives.common.redis.serializer.JsonRedisSerializer;

/**
 * @author seaua
 */
@Configuration
public class RedisConfig {
    @Resource
    private RedisConnectionFactory factory;

    @Bean
    public RedisTemplate<String, Object> redisTemplate() {
        RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        redisTemplate.setValueSerializer(new JsonRedisSerializer<>(Object.class));
        redisTemplate.setHashKeySerializer(new StringRedisSerializer());
        redisTemplate.setHashValueSerializer(new JsonRedisSerializer<>(Object.class));
        redisTemplate.setConnectionFactory(factory);

        return redisTemplate;
    }
}

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