背景：
在做性能测试，脚本参数化是一个比较好玩的事情，不同工具参数写法不一样，简单可以从三个方面（随机、唯一，顺序）获取参数进行脚本参数化；nGrinder参数化需要一点代码基础才可以实现。
nGrinder平台参数写法简单介绍如：
点击脚本，选择需要参数化的脚本：
新建文件为：resources，并且在该目录下上传参数文件如:
新建脚本：
把相关内容输入进入：
如果有头信息等信息，点击高级即可看到：
参考脚本
代码语言：javascript复制import static net.grinder.script.Grinder.grinderimport static org.junit.Assert.*import static org.hamcrest.Matchers.*import net.grinder.plugin.http.HTTPRequestimport net.grinder.plugin.http.HTTPPluginControlimport net.grinder.script.GTestimport net.grinder.script.Grinderimport net.grinder.scriptengine.groovy.junit.GrinderRunnerimport net.grinder.scriptengine.groovy.junit.annotation.BeforeProcessimport net.grinder.scriptengine.groovy.junit.annotation.BeforeThread// import static net.grinder.util.GrinderUtils.* // You can use this if you're using nGrinder after 3.2.3import org.junit.Beforeimport org.junit.BeforeClassimport org.junit.Testimport org.junit.runner.RunWith
import java.util.Dateimport java.util.Listimport java.util.ArrayList
import HTTPClient.Cookieimport HTTPClient.CookieModuleimport HTTPClient.HTTPResponseimport HTTPClient.NVPair
/** * A simple example using the HTTP plugin that shows the retrieval of a * single page via HTTP. * * This script is automatically generated by ngrinder. * @author liwen
* @Title: Msg
* @Description: 脚本参数化
* @date 2019/10/28 / 22:07 */@RunWith(GrinderRunner)class TestRunner {
public static GTest test public static HTTPRequest request public static NVPair[] headers = [] public static NVPair[] params = [] public static Cookie[] cookies = []
////存放参数文件记录 public static lineList = List //参数行 public static def rowNumber
@BeforeProcess public static void beforeProcess() { HTTPPluginControl.getConnectionDefaults().timeout = 6000 test = new GTest(1, "localhost") request = new HTTPRequest()
List<NVPair> headerList = new ArrayList<NVPair>() headerList.add(new NVPair("Content-Type", "application/x-www-form-urlencoded")) headerList.add(new NVPair("Transfer-Encoding", "chunked")) headerList.add(new NVPair("Content-Type", "application/json;charset=utf-8")) headers = headerList.toArray()
lineList = new File("./resources/parm.txt").readLines()
grinder.logger.info("before process."); }
@BeforeThread public void beforeThread() { test.record(this, "test") grinder.statistics.delayReports=true; grinder.logger.info("before thread."); }
@Before public void before() { request.setHeaders(headers) cookies.each { CookieModule.addCookie(it, HTTPPluginControl.getThreadHTTPClientContext()) } grinder.logger.info("before thread. init headers and cookies"); }
@Test public void test(){ rowNumber = new Random().nextInt(lineList.size()) String name = lineList.get(rowNumber).toString() List<NVPair> paramList = new ArrayList<NVPair>() paramList.add(new NVPair("userName", name)) params = paramList.toArray()
HTTPResponse result = request.GET("http://localhost:8888/userfind", params)
if (result.statusCode == 301 || result.statusCode == 302) { grinder.logger.warn("Warning. The response may not be correct. The response code was {}.", result.statusCode); } else { assertThat(result.statusCode, is(200)); } }}调试结果为：
在idea中调试
结果为：
说明：
如果是源码部署可以在如图位置新建相关目录与脚本，把上面脚本参数路径修改下即可跑起来：
上面是简单的参数化写法，如果想了解更多的写法请看源码或者查找资料，因为源码大家已经部署成功，知识网络上很多，可以灵活使用即可掌握写法。
