性能工具之Ngrinder之Get请求脚本编写
- 2019 年 10 月 29 日
- 筆記
原文作者:李文

背景:做性能测试脚本是一个实际下功夫的地方,工作中常见也就是key-value,json方式比较多,那么 nGrinder脚本咱们怎么编写以下简单介绍。
首先,通过Springboot编写一个工程实现增删改查,通过get请求获取:
http://localhost:8888/findinfo?username=600128

该工程controller层中用最简单get请求查询数据,该代码为:
@GetMapping("/findinfo") @ResponseBody public List<UserTable> findUser(UserTable userInfo) { List<UserTable> UserInfo = userService.findinfo(userInfo); return UserInfo; }
@ResponseBody注解会自动转换json显示到页面。该工程很简单,就不展示其他代码,大家在做练习的时候,可以找自己公司的项目或者自己写一个demo工程,进行练习。
接口层:
public interface UserService {
List<UserTable> findinfo(UserTable userInfo);
}
实现层:
@Service public class UserServiceImpl implements UserService {
@Override public List<UserTable> findinfo(UserTable userInfo) { UserTableExample example = new UserTableExample(); UserTableExample.Criteria criteria = example.createCriteria(); criteria.andUsernameEqualTo(userInfo.getUsername()); return userTableMapper.selectByExample(example); }}
数据库dao层:该层通过generator插件生成

generator插件参考代码:
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE generatorConfiguration PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN" "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd"> <generatorConfiguration> <!-- 数据库驱动:选择你的本地硬盘上面的数据库驱动包--> <classPathEntry location="..mysql-managerlibmysql-connector-java-5.1.6.jar"/> <context id="DB2Tables" targetRuntime="MyBatis3"> <commentGenerator> <property name="suppressDate" value="true"/> <!-- 是否去除自动生成的注释 true:是 :false:否 --> <property name="suppressAllComments" value="true"/> </commentGenerator> <!--数据库链接URL,用户名、密码 --> <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/7d" userId="root" password="123456"> </jdbcConnection> <javaTypeResolver> <property name="forceBigDecimals" value="false"/> </javaTypeResolver> <!-- 生成模型的包名和位置--> <javaModelGenerator targetPackage="com.sevendgrop.pojo" targetProject="src/main/java"> <property name="enableSubPackages" value="true"/> <property name="trimStrings" value="true"/> </javaModelGenerator> <!-- 生成映射文件的包名和位置--> <sqlMapGenerator targetPackage="mapping" targetProject="src/main/resources"> <property name="enableSubPackages" value="true"/> </sqlMapGenerator> <!-- 生成DAO的包名和位置--> <javaClientGenerator type="XMLMAPPER" targetPackage="com.sevendgrop.mapper" targetProject="src/main/java"> <property name="enableSubPackages" value="true"/> </javaClientGenerator> <!-- 要生成的表 tableName是数据库中的表名或视图名 domainObjectName是实体类名--> <table schema="" tableName="case_table"></table> </context> </generatorConfiguration>
Pom.xml配置:
<build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <configuration> <fork>true</fork> </configuration> </plugin> <!-- mybatis generator 自动生成代码插件--> <plugin> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-maven-plugin</artifactId> <version>1.3.2</version> <configuration> <configurationFile>${basedir}/src/main/resources/generator/generatorConfig.xml</configurationFile> <overwrite>true</overwrite> <verbose>true</verbose> </configuration> </plugin> </plugins> </build>
maven插件编写参考:
mybatis-generator:generate -e

配置上面后点击:

运行即可就能生存数据库链接sql语句。
打开上一节使用源码部署的工程,在介绍源码运行脚本地方新建一个脚本,参考如下代码修改成自己练习的脚本。
如图:

在nGrinder中新建的脚本编写如下代码:
import org.junit.FixMethodOrder import static net.grinder.script.Grinder.grinder import static org.junit.Assert.* import static org.hamcrest.Matchers.* import net.grinder.plugin.http.HTTPRequest import net.grinder.plugin.http.HTTPPluginControl import net.grinder.script.GTest import net.grinder.script.Grinder import net.grinder.scriptengine.groovy.junit.GrinderRunner import net.grinder.scriptengine.groovy.junit.annotation.BeforeProcess import net.grinder.scriptengine.groovy.junit.annotation.BeforeThread import org.junit.Before import org.junit.BeforeClass import org.junit.Test import org.junit.runner.RunWith import java.util.Date import java.util.List import java.util.ArrayList import HTTPClient.Cookie import HTTPClient.CookieModule import HTTPClient.HTTPResponse import HTTPClient.NVPair /** * @Title: PostGetDemo * @Description: get请求 * @author liwen * @date 2019/10/23 / 16:22 */ @RunWith(GrinderRunner) class PostGetDemo {
public static GTest test // 定义 HTTPRequest 静态变量 request,用于发送 HTTP 请求 public static HTTPRequest request // 定义 NVPair 数组 headers ,用于存放通用的请求头数据 public static NVPair[] headers = [] // 定义 NVPair 数组 params ,用于存放请求参数数据 public static NVPair[] params = [] // 定义 Cookie 数组 cookies ,用于存放通用的 cookie 数据 public static Cookie[] cookies = [] @BeforeProcess public static void beforeProcess() { // 设置请求响应超时时间(ms) HTTPPluginControl.getConnectionDefaults().timeout = 6000 // 创建GTest对象,第一个参数1代表有多个请求/事务时的执行顺序ID, 第二个参数是请求/事务的名称,会显示在summary结果中,有多个请求/事务时, 要创建多个GTest对象 test = new GTest(1, "localhost:8888") //创建 HTTPRequest 对象,用于发起 HTTP 请求 request = new HTTPRequest() // Set header datas List<NVPair> headerList = new ArrayList<NVPair>() headerList.add(new NVPair("Content-Type", "application/x-www-form-urlencoded")) headerList.add(new NVPair("Connection", "keep-alive")) headers = headerList.toArray() // Set param datas List<NVPair> paramList = new ArrayList<NVPair>() paramList.add(new NVPair("username", "600128")) params = paramList.toArray() // Set cookie datas List<Cookie> cookieList = new ArrayList<Cookie>() cookieList.add(new Cookie("Cookie", "Idea-96adee05=87213429-7753-4183-99d0-c1c3362ce5d0; Hm_lvt_eb54a8c74fe4cb91ad8ca004e48cd3f9=1545999605; Pycharm-5b892e29=6772acb9-e87b-4d37-98e3-bff82e412d17; csrftoken=KDr8oYtD0gKh7UbS5fWSROzEOX6rjX3CN26pz9PQu9AczLMGFhw53ZrjAhoIOTE7; Hm_lvt_f2c884fc06fca522c4105429259b8a73=1558506687; Webstorm-173930bd=052a6829-b802-4eb0-a1e2-e348f1012604; _ga=GA1.1.1061327805.1562753587; UM_distinctid=16c02a6b049e1-02b6b032525db4-e343166-144000-16c02a6b04a120; CNZZDATA4617777=cnzz_eid%3D1637582848-1563412391-%26ntime%3D1563412391; Hm_lvt_0cb375a2e834821b74efffa6c71ee607=1563412574; bad_id22bdcd10-6250-11e8-917f-9fb8db4dc43c=a32ab941-a8f9-11e9-9989-93f7b4f25032; Idea-2b3f02ca=87213429-7753-4183-99d0-c1c3362ce5d0; cookie_lang=0; JSESSIONID=801DE60D9A00C391F80ABE0CD94A6E25", "localhost:8888", "", new Date(), true)) cookies = cookieList.toArray() grinder.logger.info("before process."); } @BeforeThread public void beforeThread() { // 注册事件,启动test,第二个参数要与@Test注解的方法名保持一致, 有多个请求/事务时,要注册多个事件 test.record(this, "test") //配置延迟报告统计结果 grinder.statistics.delayReports = true; grinder.logger.info("before thread."); } @Before public void before() { //在这里可以添加headers属性和cookies // request.setHeaders(headers) cookies.each { CookieModule.addCookie(it, HTTPPluginControl.getThreadHTTPClientContext()) } grinder.logger.info("before thread. init headers and cookies"); } @Test public void test() { // 发送GET请求 HTTPResponse result = request.GET("http://localhost:8888/findinfo", params) def text = result.getText() grinder.logger.info(text) // 断言HTTP请求状态码 assertThat(result.statusCode, is(200)) }
}
再次运行:

点击运行配置加上:
-javaagent:D:mavenrepositorynetsfgrindergrinder-dcr-agent3.9.1grinder-dcr-agent-3.9.1.jar
配置说明如下:

之后点击运行即可:

结果如下:

关键点需要注意这里:
List<NVPair> headerList = new ArrayList<NVPair>() headerList.add(new NVPair("Content-Type", "application/x-www-form-urlencoded")) headerList.add(new NVPair("Connection", "keep-alive")) headers = headerList.toArray()
头信息:
public static NVPair[] headers = [] public static NVPair[] params = [] public static Cookie[] cookies = []
查看源码就知道怎么传值,这里列举cookie源码传值说明:

通过源码查看得知如果传cookie需要new cookie实列通过构造方法进行传值入:
List<Cookie> cookieList = new ArrayList<Cookie>() cookieList.add(new Cookie("Cookie", "Idea-96adee05=87213429-7753-4183-99d0-c1c3362ce5d0; Hm_lvt_eb54a8c74fe4cb91ad8ca004e48cd3f9=1545999605; Pycharm-5b892e29=6772acb9-e87b-4d37-98e3-bff82e412d17; csrftoken=KDr8oYtD0gKh7UbS5fWSROzEOX6rjX3CN26pz9PQu9AczLMGFhw53ZrjAhoIOTE7; Hm_lvt_f2c884fc06fca522c4105429259b8a73=1558506687; Webstorm-173930bd=052a6829-b802-4eb0-a1e2-e348f1012604; _ga=GA1.1.1061327805.1562753587; UM_distinctid=16c02a6b049e1-02b6b032525db4-e343166-144000-16c02a6b04a120; CNZZDATA4617777=cnzz_eid%3D1637582848-1563412391-%26ntime%3D1563412391; Hm_lvt_0cb375a2e834821b74efffa6c71ee607=1563412574; bad_id22bdcd10-6250-11e8-917f-9fb8db4dc43c=a32ab941-a8f9-11e9-9989-93f7b4f25032; Idea-2b3f02ca=87213429-7753-4183-99d0-c1c3362ce5d0; cookie_lang=0; JSESSIONID=801DE60D9A00C391F80ABE0CD94A6E25", "localhost:8888", "", new Date(), true)) cookies = cookieList.toArray() grinder.logger.info("before process.");
List<Cookie> cookieList = new ArrayList<Cookie>() cookieList.add(new Cookie("Cookie", "Idea-96adee05=87213429-7753-4183-99d0-c1c3362ce5d0; Hm_lvt_eb54a8c74fe4cb91ad8ca004e48cd3f9=1545999605; Pycharm-5b892e29=6772acb9-e87b-4d37-98e3-bff82e412d17; csrftoken=KDr8oYtD0gKh7UbS5fWSROzEOX6rjX3CN26pz9PQu9AczLMGFhw53ZrjAhoIOTE7; Hm_lvt_f2c884fc06fca522c4105429259b8a73=1558506687; Webstorm-173930bd=052a6829-b802-4eb0-a1e2-e348f1012604; _ga=GA1.1.1061327805.1562753587; UM_distinctid=16c02a6b049e1-02b6b032525db4-e343166-144000-16c02a6b04a120; CNZZDATA4617777=cnzz_eid%3D1637582848-1563412391-%26ntime%3D1563412391; Hm_lvt_0cb375a2e834821b74efffa6c71ee607=1563412574; bad_id22bdcd10-6250-11e8-917f-9fb8db4dc43c=a32ab941-a8f9-11e9-9989-93f7b4f25032; Idea-2b3f02ca=87213429-7753-4183-99d0-c1c3362ce5d0; cookie_lang=0; JSESSIONID=801DE60D9A00C391F80ABE0CD94A6E25", "localhost:8888", "", new Date(), true)) cookies = cookieList.toArray()
查看@BeforeThread注解下会执行 test.record方法源码如下:
/** * Instrument the supplied {@code target} object's method which has the given name. Subsequent * calls to {@code target}'s given method will be recorded against the statistics for this * {@code Test}. * 提供的具有给定名称的{@code target}对象方法。 后继的对{@code target}给定方法的调用将根据此方法的统计信息进行记录 * @param target Object to instrument. * @param methodName method name to instrument * @throws NonInstrumentableTypeException If {@code target} could not be instrumented. * @since 3.2.1 */ public final void record(Object target, String methodName) throws NonInstrumentableTypeException { if (StringUtils.isNotEmpty(context)) { record(target, new MethodNameFilter(methodName)); } }
解释:target 指脚本对象,这里是this;
methodName 是需要统计的方法名,通常都是被 @Test 注释的方法。如果未配置,方法会正常执行,但是没有统计结果数据;
以下代码是可以复制出来修改的代码
import org.junit.FixMethodOrder import static net.grinder.script.Grinder.grinder import static org.junit.Assert.* import static org.hamcrest.Matchers.* import net.grinder.plugin.http.HTTPRequest import net.grinder.plugin.http.HTTPPluginControl import net.grinder.script.GTest import net.grinder.script.Grinder import net.grinder.scriptengine.groovy.junit.GrinderRunner import net.grinder.scriptengine.groovy.junit.annotation.BeforeProcess import net.grinder.scriptengine.groovy.junit.annotation.BeforeThread import org.junit.Before import org.junit.BeforeClass import org.junit.Test import org.junit.runner.RunWith import java.util.Date import java.util.List import java.util.ArrayList import HTTPClient.Cookie import HTTPClient.CookieModule import HTTPClient.HTTPResponse import HTTPClient.NVPair /** * @Title: PostGetDemo* @Description: get请求* @author liwen * @date 2019/10/23 / 16:22 */ @RunWith(GrinderRunner) class PostGetDemo { public static GTest test // 定义 HTTPRequest 静态变量 request,用于发送 HTTP 请求 public static HTTPRequest request // 定义 NVPair 数组 headers ,用于存放通用的请求头数据 public static NVPair[] headers = [] // 定义 NVPair 数组 params ,用于存放请求参数数据 public static NVPair[] params = [] // 定义 Cookie 数组 cookies ,用于存放通用的 cookie 数据 public static Cookie[] cookies = [] @BeforeProcess public static void beforeProcess() { // 设置请求响应超时时间(ms) HTTPPluginControl.getConnectionDefaults().timeout = 6000 // 创建GTest对象,第一个参数1代表有多个请求/事务时的执行顺序ID,第二个参数是请求/事务的名称,会显示在summary结果中,有多个请求/事务时,要创建多个GTest对象 test = new GTest(1, "localhost:8888") //创建 HTTPRequest 对象,用于发起 HTTP 请求 request = new HTTPRequest() // Set header datas List<NVPair> headerList = new ArrayList<NVPair>() headerList.add(new NVPair("Content-Type", "application/x-www-form-urlencoded")) headerList.add(new NVPair("Connection", "keep-alive")) headers = headerList.toArray() // Set param datas List<NVPair> paramList = new ArrayList<NVPair>() paramList.add(new NVPair("username", "600128")) params = paramList.toArray() // Set cookie datas List<Cookie> cookieList = new ArrayList<Cookie>() cookieList.add(new Cookie("Cookie", "Idea-96adee05=87213429-7753-4183-99d0-c1c3362ce5d0; Hm_lvt_eb54a8c74fe4cb91ad8ca004e48cd3f9=1545999605; Pycharm-5b892e29=6772acb9-e87b-4d37-98e3-bff82e412d17; csrftoken=KDr8oYtD0gKh7UbS5fWSROzEOX6rjX3CN26pz9PQu9AczLMGFhw53ZrjAhoIOTE7; Hm_lvt_f2c884fc06fca522c4105429259b8a73=1558506687; Webstorm-173930bd=052a6829-b802-4eb0-a1e2-e348f1012604; _ga=GA1.1.1061327805.1562753587; UM_distinctid=16c02a6b049e1-02b6b032525db4-e343166-144000-16c02a6b04a120; CNZZDATA4617777=cnzz_eid%3D1637582848-1563412391-%26ntime%3D1563412391; Hm_lvt_0cb375a2e834821b74efffa6c71ee607=1563412574; bad_id22bdcd10-6250-11e8-917f-9fb8db4dc43c=a32ab941-a8f9-11e9-9989-93f7b4f25032; Idea-2b3f02ca=87213429-7753-4183-99d0-c1c3362ce5d0; cookie_lang=0; JSESSIONID=801DE60D9A00C391F80ABE0CD94A6E25", "localhost:8888", "", new Date(), true)) cookies = cookieList.toArray() grinder.logger.info("before process."); } @BeforeThread public void beforeThread() { // 注册事件,启动test,第二个参数要与@Test注解的方法名保持一致,有多个请求/事务时,要注册多个事件 test.record(this, "test") //配置延迟报告统计结果 grinder.statistics.delayReports = true; grinder.logger.info("before thread."); } @Before public void before() { //在这里可以添加headers属性和cookies // request.setHeaders(headers) cookies.each { CookieModule.addCookie(it, HTTPPluginControl.getThreadHTTPClientContext()) } grinder.logger.info("before thread. init headers and cookies"); } @Test public void test() { // 发送GET请求 HTTPResponse result = request.GET("http://localhost:8888/findinfo", params) def text = result.getText() grinder.logger.info(text) // 断言HTTP请求状态码 assertThat(result.statusCode, is(200)) }
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