记录一次手动导入redis lpush的代码 , 主要功能 使用 lpush(key, v1, v2, ...) 的方式 ,批量导入

实现类

import redis.clients.jedis.Jedis;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

/**
 * @author : gorey
 */
public class App {
    public static void main(String[] args) throws IOException {
        if (args.length == 0){
            System.out.println("usage : ./app.jar filename.log");
            return;
        }

        Jedis j = new Jedis("target ip", port, false);
        j.connect();
        j.auth("redis-password");
        
        String key = "backup.key";
        BufferedReader br = new BufferedReader(new FileReader(args[0]));

        String line ;
        List<String> list = new ArrayList<String>();
        int pushCount = 1;
        
        Long rst = null;
        
        while((line = br.readLine())!= null){
            if (list.size() >= 1000) {
                rst = j.lpush(key, list.toArray(new String[0]));
                list.clear();
                System.out.println("push count " + pushCount ++ + " push rst : " + rst);
            }
        }

        if (list.size() > 0) {
            rst = j.lpush(key, list.toArray(new String[0]));
            System.out.println("push count " + pushCount ++ + " push rst : " + rst);
        }
        j.disconnect();
        System.out.println("Done");
    }
}

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 http://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>2.1.8.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <groupId>org.example</groupId>
    <artifactId>reids-left-push</artifactId>
    <version>1.0-SNAPSHOT</version>

    <dependencies>
        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
            <version>3.2.0</version>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>
```xml