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springboot中通过lua脚本来获取序列号的方法

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序言: 事件:此web项目的功能及其简单,就是有客户端来访问redis序列号服务时发送jison报文,项目已经在测试环境成功运行2周了,具体的代码我就直接上了,此博客仅是自己的记录,

序言:

事件:此web项目的功能及其简单,就是有客户端来访问redis序列号服务时发送jison报文,项目已经在测试环境成功运行2周了,具体的代码我就直接上了,此博客仅是自己的记录,同学们可做参考!

一、工程目录结构

在这里插入图片描述

二、配置文件

1、pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.2.6.RELEASE</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>
	<groupId>com.test</groupId>
	<artifactId>seq-gen</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>seq-gen</name>
	<description>generate sequence from redis</description>

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
		<java.version>1.8</java.version>
	</properties>

	<dependencies>
		<!--引入日志依赖-->
		<!--<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-log4j12</artifactId>
			<version>1.7.21</version>
		</dependency>
		<dependency>
			<groupId>commons-logging</groupId>
			<artifactId>commons-logging</artifactId>
			<version>1.2</version>
		</dependency>-->

		<!-- log4j2的api、core和web包 -->
		<dependency>
			<groupId>org.apache.logging.log4j</groupId>
			<artifactId>log4j-api</artifactId>
			<version>2.11.1</version>
		</dependency>
		<dependency>
			<groupId>org.apache.logging.log4j</groupId>
			<artifactId>log4j-core</artifactId>
			<version>2.11.1</version>
		</dependency>
		<dependency>
			<groupId>org.apache.logging.log4j</groupId>
			<artifactId>log4j-web</artifactId>
			<version>2.11.1</version>
		</dependency>
		<!-- slf4j与log4j2的连接包 -->
		<dependency>
			<groupId>org.apache.logging.log4j</groupId>
			<artifactId>log4j-slf4j-impl</artifactId>
			<version>2.11.1</version>
		</dependency>
		<!-- log4j与log4j2的连接包 -->
		<dependency>
			<groupId>org.apache.logging.log4j</groupId>
			<artifactId>log4j-1.2-api</artifactId>
			<version>2.11.1</version>
		</dependency>
		<!-- log4j2支撑完全异步模式的关键api -->
		<dependency>
			<groupId>com.lmax</groupId>
			<artifactId>disruptor</artifactId>
			<version>3.4.2</version>
		</dependency>
		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-api</artifactId>
			<version>1.7.21</version>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-data-redis</artifactId>
		</dependency>
		<dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>fastjson</artifactId>
			<version>1.2.62</version>
		</dependency>
		<dependency>
			<groupId>redis.clients</groupId>
			<artifactId>jedis</artifactId>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter</artifactId>
			<exclusions>
				<exclusion>
					<groupId>org.springframework.boot</groupId>
					<artifactId>spring-boot-starter-logging</artifactId>
				</exclusion>
			</exclusions>
		</dependency>
		<!-- 热部署,集成测试-->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-devtools</artifactId>
			<optional>true</optional>
		</dependency>
		<dependency>
			<groupId>org.projectlombok</groupId>
			<artifactId>lombok</artifactId>
			<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.apache.maven.plugins</groupId>
				<artifactId>maven-compiler-plugin</artifactId>
				<configuration>
					<source>1.8</source>
					<target>1.8</target>
				</configuration>
			</plugin>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
				<executions>
					<execution>
						<goals>
							<goal>repackage</goal>
						</goals>
					</execution>
				</executions>
			</plugin>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-surefire-plugin</artifactId>
				<version>2.4.2</version>
				<configuration>
					<skipTests>true</skipTests>
				</configuration>
			</plugin>
		</plugins>
	</build>
</project>

2、applicaiton.properties

spring.redis.database= 0
spring.redis.host= 127.0.0.1
spring.redis.port= 6379
spring.redis.pool.max-active= 8
spring.redis.pool.max-wait= -1ms
spring.redis.pool.max-idle= 8
spring.redis.pool.min-idle= 0
spring.redis.pool.timeout= 2000ms
server.port= 8085

3、luaScripts脚本

local function get_next_seq()
 --KEYS[1]:第一个参数代表存储序列号的key 相当于代码中的业务类型
 local key = tostring(KEYS[1])
 --KEYS[2]:第二个参数代表序列号增长速度
 local incr_amoutt = tonumber(KEYS[2])
 --KEYS[3]`:第四个参数为序列号 (yyMMddHHmmssSSS + 两位随机数)
 local seq = tonumber(KEYS[3])
 --序列号过期时间大小,单位是秒
 -- local month_in_seconds = 24 * 60 * 60 * 7

 --Redis的 SETNX 命令可以实现分布式锁,用于解决高并发
 --如果key不存在,将 key 的值设为 seq,设置成成功返回1 未设置返回0
 --若给定的 key 已经存在,则 SETNX 不做任何动作,获取下一个按照步增的值

 if (1 == redis.call('setnx', key, seq)) --不存在key,
 then
 --设置key的生存时间 为 month_in_seconds秒
 -- 由于序列号需要永久有效,不能过期,所以取消这个设置,需要的可以取消注释
 -- redis.call('expire', key, month_in_seconds)
 --将序列返回给调用者
  return seq
 else
 --key值存在,直接获取下一个增加的值
  local nextSeq = redis.call('incrby', key, incr_amoutt)
  return nextSeq
 end
end
return get_next_seq()

4、log4j2.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--日志级别以及优先级排序: OFF > FATAL > ERROR > WARN > INFO > DEBUG > TRACE > ALL -->
<!--Configuration后面的status,这个用于设置log4j2自身内部的信息输出,可以不设置,当设置成trace时,你会看到log4j2内部各种详细输出-->
<!--monitorInterval:Log4j能够自动检测修改配置 文件和重新配置本身,设置间隔秒数-->
<configuration status="INFO" monitorInterval="30" packages="org.apache.logging.log4j.core.layout">
 <Properties>
  <Property name="baseDir">logs</Property>
 </Properties>
 <!--先定义所有的appender-->
 <appenders>
  <!-- 这个输出控制台的配置 -->
  <Console name="Console" target="SYSTEM_OUT">
   <!-- 控制台只输出level及以上级别的信息(onMatch),其他的直接拒绝(onMismatch) -->
   <ThresholdFilter level="info" onMatch="ACCEPT" onMismatch="DENY"/>
   <!-- 这个都知道是输出日志的格式 -->
   <PatternLayout pattern="[%date{DEFAULT}]-[%highlight{%level}]-[%threadName]-[%-class{4}:%line]-%msg%n"/>
  </Console>
  <!-- 这个会打印出所有的info及以下级别的信息,每次大小超过size,则这size大小的日志会自动存入按年份-月份建立的文件夹下面并进行压缩,作为存档-->
  <RollingFile name="RollingFileInfo" fileName="${baseDir}/seq_all.log"
      filePattern="${baseDir}/$${date:yyyy-MM}/all-%d{yyyy-MM-dd}-%i.log">
   <!--控制台只输出level及以上级别的信息(onMatch),其他的直接拒绝(onMismatch)-->
   <ThresholdFilter level="info" onMatch="ACCEPT" onMismatch="DENY"/>
   <PatternLayout pattern="[%date{DEFAULT}]-[%highlight{%level}]-[%threadName]-[%-class{4}:%line]-%msg%n"/>

   <Policies>
    <TimeBasedTriggeringPolicy/>
    <SizeBasedTriggeringPolicy size="500 MB"/>
   </Policies>
  </RollingFile>
  <RollingFile name="RollingFileWarn" fileName="${baseDir}/seq_warn.log"
      filePattern="${baseDir}/$${date:yyyy-MM}/warn-%d{yyyy-MM-dd}-%i.log">
   <ThresholdFilter level="warn" onMatch="ACCEPT" onMismatch="DENY"/>
   <PatternLayout pattern="[%date{DEFAULT}]-[%highlight{%level}]-[%threadName]-[%-class{4}:%line]-%msg%n"/>
   <Policies>
    <TimeBasedTriggeringPolicy/>
    <SizeBasedTriggeringPolicy size="100 MB"/>
   </Policies>
   <!-- DefaultRolloverStrategy属性如不设置,则默认为最多同一文件夹下7个文件,这里设置了20 -->
   <DefaultRolloverStrategy max="20"/>
  </RollingFile>

  <RollingFile name="RollingFileErrorCommon" fileName="${baseDir}/seq_error.log"
      filePattern="${baseDir}/$${date:yyyy-MM}/error-%d{yyyy-MM-dd}-%i.log">
   <ThresholdFilter level="error" onMatch="ACCEPT" onMismatch="DENY"/>
   <PatternLayout pattern="[%date{DEFAULT}]-[%highlight{%level}]-[%threadName]-[%-class{4}:%line]-%msg%n"/>
   <Policies>
    <TimeBasedTriggeringPolicy/>
    <SizeBasedTriggeringPolicy size="100 MB"/>
   </Policies>
  </RollingFile>
 </appenders>
 <!--然后定义logger,只有定义了logger并引入的appender,appender才会生效-->
 <loggers>
  <!--过滤掉spring和mybatis的一些无用的DEBUG信息-->
  <logger name="org.springframework" level="DEBUG"></logger>
  <logger name="org.mybatis" level="DEBUG"></logger>
  <logger name="com.alicl oud.openservices.tablestore" level="ERROR" additivity="false">
   <appender-ref ref="RollingFileOtsError"/>
  </logger>
  <root level="INFO">
   <appender-ref ref="Console"/>
   <appender-ref ref="RollingFileInfo"/>
   <appender-ref ref="RollingFileWarn"/>
   <appender-ref ref="RollingFileErrorCommon"/>
  </root>
 </loggers>
</configuration>

三、代码部分

1、启动类

package com.test;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class SeqGenApplication {
	private static final Logger log = LoggerFactory.getLogger(SeqGenApplication.class);
	public static void main(String[] args) {
		SpringApplication.run(SeqGenApplication.class, args);
		log.info("start SeqGenApplication sucessfully........");
	}
}

2、Bean

package com.test.bean;

import com.alibaba.fastjson.annotation.JSONField;

/**
 * Copyright (C), 2019-2020
 *
 * 此类是请求和响应中对应的属性
 *
 * @author fanhf
 * @date  2020-03-25
 * @version v1.0.0
 */
public class RspBean {
 public RspBean(){}
 /* 开始序列号 */
 @JSONField(name = "SNNumB")
 private Integer sNNumB;
 /* 从redis中获取的序列号 */
 @JSONField(name = "SNNumE")
 private Integer sNNumE;
 /* 发起方操作流水 */
 @JSONField(name = "OprNumb")
 private String 	oprNumb;
 /* 落地方操作时间 */
 @JSONField(name = "OprTime")
 private String oprTime;
 /* 返回码 */
 @JSONField(name = "BizOrderResult")
 private String bizOrderResult;
 /* 返回码描述 */
 @JSONField(name = "ResultDesc")
 private String resultDesc;


 public Integer getSNNumB() {
  return sNNumB;
 }

 public void setSNNumB(Integer sNNumB) {
  this.sNNumB = sNNumB;
 }

 public Integer getSNNumE() {
  return sNNumE;
 }

 public void setSNNumE(Integer sNNumE) {
  this.sNNumE = sNNumE;
 }

 public String getOprNumb() {
  return oprNumb;
 }

 public void setOprNumb(String oprNumb) {
  this.oprNumb = oprNumb;
 }

 public String getOprTime() {
  return oprTime;
 }

 public void setOprTime(String oprTime) {
  this.oprTime = oprTime;
 }

 public String getBizOrderResult() {
  return bizOrderResult;
 }

 public void setBizOrderResult(String bizOrderResult) {
  this.bizOrderResult = bizOrderResult;
 }

 public String getResultDesc() {
  return resultDesc;
 }

 public void setResultDesc(String resultDesc) {
  this.resultDesc = resultDesc;
 }

 @Override
 public String toString() {
  return "RspBean{" +
    "sNNumB=" + sNNumB +
    ", sNNumE=" + sNNumE +
    ", oprNumb='" + oprNumb + '\'' +
    ", oprTime='" + oprTime + '\'' +
    ", bizOrderResult='" + bizOrderResult + '\'' +
    ", resultDesc='" + resultDesc + '\'' +
    '}';
 }
}

3、Controller

package com.test.controller;

import com.test.bean.RspBean;
import com.test.service.RedisService;
import com.test.util.CommonUtils;
import com.alibaba.fastjson.JSONObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;

import java.util.HashMap;
import java.util.Map;


/**
 * Copyright (C), 2019-2020
 *
 * 此类是web层的入口,用来接收json请求
 *
 * @author fanhf
 * @date  2020-03-29
 * @version v1.0.0
 */
@RestController
public class RedisControlLer {

 private static final Logger log = LoggerFactory.getLogger(RedisControlLer.class);
 @Autowired
 private RedisTemplate<String, String> redisTemplate;

 @Autowired
 private RedisService redisService;

 @PostMapping(path = "/app/v1/sync/bizOrder/QuerySerialNumber", consumes = "application/json", produces = "application/json")
 public String rcvReq(@RequestBody String jsonparam){

  String prettyJson= CommonUtils.prettyJson(jsonparam);
  log.info("receive requset: ");
  log.info("\r\n"+prettyJson);
  JSONObject jsonObject = new JSONObject();
  RspBean rw = new RspBean();
  String response = null;
  Map<String ,String> jsonMap = new HashMap<String,String>();
  try {
   // 将报文放入map中
   jsonMap = CommonUtils.putReq2Map(jsonparam);
   response = redisService.createResponse(jsonMap);
   prettyJson = CommonUtils.prettyJson(response);
   log.info("send Response: ");
   log.info("\r\n"+prettyJson);
  } catch (Exception ex) {
   if (null == jsonObject || 0 == jsonObject.size()) {
    try {
     String oprNumb = jsonMap.get("oprNumb");
     rw.setOprNumb(oprNumb);
     rw.setBizOrderResult("30000");
     rw.setResultDesc(ex.getMessage());
     JSONObject json = (JSONObject) JSONObject.toJSON(rw);
     response = json.toString();
    } catch (Exception e) {
     e.printStackTrace();
    }
    return response;
   }
  }
  return response;
 }
}

4、Service

package com.test.service;

import java.util.Map;

public interface RedisService {
  String createResponse(Map<String, String> jsonMap);
}

ServiceImpl

package com.test.service;

import com.test.bean.RspBean;
import com.test.util.CommonUtils;
import com.test.util.RedisUtil;
import com.alibaba.fastjson.JSONObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;

import java.util.*;

/**
 * Copyright (C), 2019-2020
 *
 * 此类是service处理层,根据接收到的序列名称和步长值,从redis中获取序列号,再对返回的信息进行组装
 * 以及对异常情况时返回数据的处理
 *
 * @author fanhf
 * @date  2020-04-05
 * @version v1.0.0
 */

@Component
@Service
public class RedisServiceImpl implements RedisService {
 private static final Logger log = LoggerFactory.getLogger(RedisServiceImpl.class);
 @Override
 public String createResponse(Map<String, String> jsonMap) {
  String response = null;
  RspBean rw = null;
  JSONObject json = null;

  // 之所以要遍历map是因为怕传过来的key值有小写的,怕get不到对应的值
  String key = null;
  String sNNameValue = null;
  String increAmountValue = null;
  for (Map.Entry<String, String> entry : jsonMap.entrySet()) {
   key = entry.getKey();
   if ("SNName".equalsIgnoreCase(key)) {
    sNNameValue = entry.getValue();
   } else if("SNNum".equalsIgnoreCase(key)){
    increAmountValue = entry.getValue();
   }
  }
  String seq="0";
  // 从redis中获取序列号(根据序列号名称和步长获取序列号)
  List<String> busilist = Arrays.asList(sNNameValue,increAmountValue,seq);

  Long seqFromRedis = null;
  try {
   seqFromRedis = RedisUtil.getBusiSeq(busilist);
  } catch (Exception e) {
   log.error("cannot get seq from redis cluster ,please check redis cluster"+ "_" + e.getMessage(), e);
  }
  log.info("seqFromRedis:{}", seqFromRedis);
  String oprNumb = jsonMap.get("OprNumb");
  String oprTime = CommonUtils.getCurDateTimestamp();
  try {
   rw = new RspBean();
   int sNNumB;
   if(!StringUtils.isEmpty(seqFromRedis)){
    sNNumB=seqFromRedis.intValue();
    rw.setSNNumB(sNNumB);
    rw.setSNNumE(sNNumB+Integer.parseInt(increAmountValue));
    rw.setBizOrderResult("00000");
    rw.setResultDesc("Success");
   }else{
    rw.setSNNumB(0);
    rw.setSNNumE(0);
    rw.setBizOrderResult("30000");
    rw.setResultDesc("business handles failed....");
   }
   rw.setOprNumb(oprNumb);
   rw.setOprTime(oprTime);
   json = (JSONObject) JSONObject.toJSON(rw);
   response = json.toString();
  } catch (Exception e) {
   log.error("boxing response of json happend error "+ "_" + e.getMessage(), e);
   if (rw != null) {
    rw.setBizOrderResult("30000");
    rw.setResultDesc("business handles failed......");
    json = (JSONObject) JSONObject.toJSON(rw);
    response = json.toString();
   }
   log.info("send Response: [ {} ]", response );
   jsonMap.put("responseToWzw", response);
   return response;

  }
  return response;
 }
}

5、Utils

5.1 CommonUtils

package com.test.util;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.alibaba.fastjson.serializer.SerializerFeature;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Date;
import java.util.Map;

/**
 * 工具类
 * @author fanhf
 * @date  2020-04-01
 * @version v1.0.0
 */
public class CommonUtils {
 private static final Logger log = LoggerFactory.getLogger(CommonUtils.class);
 public static Map<String, String> putReq2Map(String jsonparam) {
  // 将json字符串转换为json对象
  return (Map<String, String>) JSONObject.parse(jsonparam);
 }

 /**
  * @Description 获取系统当前时间
  * @return 时间字符串
  */
 public static String getCurDateTimestamp(){
  DateTimeFormatter dateTimeFormatter=DateTimeFormatter.ofPattern("yyyyMMddHHmmss");
  LocalDateTime localDateTime = LocalDateTime.now();
  String now=localDateTime.format(dateTimeFormatter);
  return now;
 }

 /**
  * 美化json格式,将一行json转为为有回车换行的json
  * @param reqJson
  * @return 美化后的json
  */
 public static String prettyJson(String reqJson){
  JSONObject object = JSONObject.parseObject(reqJson);
  String prettyJson = JSON.toJSONString(object, SerializerFeature.PrettyFormat, SerializerFeature.WriteMapNullValue,SerializerFeature.WriteDateUseDateFormat);
  return prettyJson;
 }
}

5.2 ReadConfigsPathUtil

package com.test.util;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.Properties;
/**
 * @ Description : 用来获取linux和windows的config的绝对路径
 * @ Author  : fanhf
 * @ CreateDate : 2020/4/11 0:33
 * @ UpdateUser : fanhf
 * @ UpdateDate : 2020/4/11 0:33
 * @ UpdateRemark : 修改内容
 * @ Version  : 1.0.0
 */
public class ReadConfigsPathUtil {
 private static final Logger log = LoggerFactory.getLogger(ReadConfigsPathUtil.class);
 private ReadConfigsPathUtil() {}
 private static Properties properties = null;

 /**
  * @Description 获取linux和windows系统中config的目录
  * @param configPath lua脚本的相对路径
  * @return linux和windows系统中config的目录的绝对路径
  */
 public static String getPropertiesPath(String configPath) {
  String sysPath = getRelativePath();
  log.info("sysPath:{}",sysPath);
   String filepath = new StringBuffer(sysPath)
     .append(File.separator)
     .append("config")
     .append(File.separator)
     .append(configPath).toString();
  log.info("filepath:{}",filepath);
  return filepath;
 }
 /**
  * @Description 获取系统字符型属性
  * @author add by fanhf
  * @date 2020-04-08
  */
 public static String getRelativePath() {
  return System.getProperty("user.dir");
 }

 /**
  * @Description 读取lua脚本的内容
  * @param luaScriptPath lua脚本的绝对路径
  * @return 读取到的lua脚本的内容
  * @author add by fanhf
  * @date 2020-04-15
  */
 public static String readFileContent(String luaScriptPath) {
  String filename = getPropertiesPath(luaScriptPath);
  File file = new File(filename);
  BufferedReader reader = null;
  StringBuffer sbf = new StringBuffer();
  try {
   reader = new BufferedReader(new FileReader(file));
   String tempStr;
   while ((tempStr = reader.readLine()) != null) {
    sbf.append(tempStr);
    sbf.append("\r\n");
   }
   reader.close();
   return sbf.toString();
  } catch (IOException e) {
   e.printStackTrace();
  } finally {
   if (reader != null) {
    try {
     reader.close();
    } catch (IOException e1) {
     e1.printStackTrace();
    }
   }
  }
  return sbf.toString();
 }
}

5.3 RedisUtil

package com.test.util;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.support.EncodedResource;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.core.script.DefaultRedisScript;
import org.springframework.data.redis.core.script.DefaultScriptExecutor;
import org.springframework.data.redis.core.script.RedisScript;
import org.springframework.stereotype.Component;
import org.springframework.util.FileCopyUtils;
import java.io.IOException;
import java.util.List;

/**
 * @ Description : 用来加载和读取lua脚本并加载
 * @ Author  : fanhf
 * @ CreateDate : 2020/4/01 0:32
 * @ UpdateUser : fanhf
 * @ UpdateDate : 2020/4/01 0:32
 * @ UpdateRemark : 修改内容
 * @ Version  : 1.0.0
 */
@Component
public class RedisUtil {
 private static final Logger log = LoggerFactory.getLogger(RedisUtil.class);

 private static StringRedisTemplate redisStringTemplate;

 private static RedisScript<Long> redisScript;

 private static DefaultScriptExecutor<String> scriptExecutor;

 private RedisUtil(StringRedisTemplate template) throws IOException {
  RedisUtil.redisStringTemplate = template;
   // 之所以会注释掉是由于这段代码可以直接读取resource目录下的非application.properties的文件,
   // 但是这个方法在生产和测试环境不适用,因为配置文件必须暴露初打的jar包里
//  ClassPathResource luaResource = new ClassPathResource("luaScript/genSeq.lua");
//  EncodedResource encRes = new EncodedResource(luaResource, "UTF-8");
//  String luaString = FileCopyUtils.copyToString(encRes.getReader());

  String luaString = ReadConfigsPathUtil.readFileContent("luaScript/genSeq.lua");
  redisScript = new DefaultRedisScript<>(luaString, Long.class);
  scriptExecutor = new DefaultScriptExecutor<>(redisStringTemplate);
 }
 public static Long getBusiSeq(List<String> Busilist) throws Exception{
  Long seqFromRedis = scriptExecutor.execute(redisScript, Busilist);
  return seqFromRedis;
 }
}

总结

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