JMeter压力测试记录-编程知识

JMeter压力测试记录

最近在学习redis解决高并发下导致数据库数据不准确的问题，使用到了一些工具，包括Jmeter，Redis-desktop-manager.。Jmeter用于模拟高并发情景，Redis-desktop-manager是redis数据库的GUI界面。

一、单元测试生成测试数据

1)插入2000用户

package com.xwl.diners.service;import com.xwl.commons.model.dto.DinersDTO;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;@SpringBootTest
public class DinersServiceTest {@Autowiredprivate DinersService dinersService;/*** 生成用户*/@Testpublic void saveUser() {for (int i = 0; i < 2000; i++) {DinersDTO dinersDTO = new DinersDTO();dinersDTO.setUsername("test" + i);dinersDTO.setPassword("123");dinersDTO.setIsValid(true);dinersService.saveUser(dinersDTO, "/user/register");}}
}

2）使用MockMvc生成2000个token，保存至文件

package com.xwl.oauth2.server.controller;import cn.hutool.json.JSONObject;
import cn.hutool.json.JSONUtil;
import com.xwl.commons.model.domain.ResultInfo;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.http.MediaType;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.MvcResult;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.result.MockMvcResultMatchers;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.Base64Utils;import javax.annotation.Resource;
import java.io.File;
import java.io.FileOutputStream;
import java.nio.charset.StandardCharsets;@SpringBootTest
@Transactional
@AutoConfigureMockMvc
public class OAuthControllerTest {@Resourceprivate MockMvc mockMvc;@Testpublic void postAccessToken() throws Exception {
//        mockMvc = MockMvcBuilders.standaloneSetup(new OAuthController()).build();StringBuffer tokens = new StringBuffer();String authorization = Base64Utils.encodeToString("appId:123456".getBytes(StandardCharsets.UTF_8));for (int i = 0; i < 2000; i++) {MvcResult mvcResult = mockMvc.perform(MockMvcRequestBuilders.post("/oauth/token").header("Authorization", "Basic " + authorization).contentType(MediaType.APPLICATION_FORM_URLENCODED).param("username", "test" + i).param("password", "123").param("grant_type", "password").param("scope", "api")).andExpect(MockMvcResultMatchers.status().isOk()).andReturn();String contentAsString = mvcResult.getResponse().getContentAsString();ResultInfo resultInfo = JSONUtil.toBean(contentAsString, ResultInfo.class);JSONObject result =(JSONObject) resultInfo.getData();String token = result.getStr("accessToken");tokens.append(token).append("\r\n");}File file = new File("tokens.txt");if(file.exists()){file.delete();}file.createNewFile();FileOutputStream outputStream = new FileOutputStream(file);outputStream.write(tokens.toString().getBytes(StandardCharsets.UTF_8));outputStream.close();}
}

二、Jmeter压力测试配置

下载官网Apache JMeter - Apache JMeter™

上面已经生成了2000个有效token，现在我们配置一个5000并发2000用户的压力测试，需要读取上一步生成的文件，于请求头中携带。

1）在jmeter中添加一个线程组，设置5000并发。