JMeter reads the value in Redis and gets token from it

To use jmeter to retrieve the value of the login token from Redis

Prepare

The jar package of jedis needs to be prepared and placed under the lib of the jmeter installation path.
Download the jar package: https://mvnrepository.com/artifact/redis.clients/jedis/3.1.0-rc2

Set connection parameters

Set the parameters for connecting to Redis in User Defined Variables (user-defined variables)

name	value	describe
redis-host	127.0.0.1	Connection host address
redis-port	6379	The port number
redis-password		password
redis-index	0	which library
redis-string-key	student	the key to get the value

BeanShell script

Create a BeanShell Sampler (BeanShell sampler)

import redis.clients.jedis.Jedis;
import java.util.ArrayList;
import org.apache.commons.lang3.StringUtils;

String host = "${redis-host}"; //服务器地址
int port = ${redis-port}; //端口号
String password = "${redis-password}"; //redis密码
int index = ${redis-index}; //redis db，0选择第一个db0
String key = "${redis-string-key}"; //key值
Jedis jedis = new Jedis(host, port);

if(StringUtils.isNotBlank(password)){
    
    
jedis.auth(password);
}
jedis.select(index);
//取出值
String str= jedis.get(key);
log.info("======================="+str);
//截取token 
String token = str.substring(12,str.indexOf(","));
log.info("---------"+token);
//给外部用
vars.put("token",token);

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