JMeter（一）结合Redis本地测试

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1、spring/spring.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="
       http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context.xsd">

    <context:component-scan base-package="controller"/>
    <!-- spring为连接redis，提供的一个模版工具类 -->
    <bean id="stringRedisTemplate" class="org.springframework.data.redis.core.StringRedisTemplate">
        <property name="connectionFactory" ref="connectionFactory"></property>
    </bean>
    <bean id="connectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory">
        <property name="hostName" value="8.140.168.167"></property>
        <property name="port" value="6379"/>
    </bean>

</beans>

2、Java代码

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import java.util.concurrent.TimeUnit;

/**
 * @Description: 测试秒杀
 */
@Controller
public class TestKill {

    @Autowired
    private StringRedisTemplate stringRedisTemplate;

    @RequestMapping("kill")
    // 只能解决一个tomcat的并发问题：synchronized锁的一个进程下的线程并发，如果分布式环 境，多个进程并发，这种方案就失效了！
    public @ResponseBody synchronized String kill() {
        // 1.从redis中获取 手机的库存数量
        int phoneCount = Integer.parseInt(stringRedisTemplate.opsForValue().get("phone"));
        // 2.判断手机的数量是否够秒杀的
        if(phoneCount > 0){ phoneCount--;
        // 库存减少后，再将库存的值保存回redis
            stringRedisTemplate.opsForValue().set("phone", phoneCount+"");
            System.out.println("库存-1，剩余："+ phoneCount);
        }else{
            System.out.println("库存不足！");
        }return "over!";
    }
}

3、web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         id="WebApp_ID" version="3.1">

    <servlet>
        <servlet-name>springmvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring/spring.xml</param-value>
        </init-param>
    </servlet>
    <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
</web-app>

4、pom.xml

<groupId>org.example</groupId>
    <artifactId>lagou-killreids</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>war</packaging>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.encoding>UTF-8</maven.compiler.encoding>
        <java.version>11</java.version>
        <maven.compiler.source>11</maven.compiler.source>
        <maven.compiler.target>11</maven.compiler.target>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>5.2.7.RELEASE</version>
        </dependency>
        <!--实现分布式锁的工具类-->
        <dependency>
            <groupId>org.redisson</groupId>
            <artifactId>redisson</artifactId>
            <version>3.6.1</version>
        </dependency>
        <!--spring操作redis的工具类-->
        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-redis</artifactId>
            <version>2.3.2.RELEASE</version>
        </dependency>
        <!--redis客户端-->
        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
            <version>3.1.0</version>
        </dependency>
        <!--json解析工具-->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.9.8</version>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.tomcat.maven</groupId>
                <artifactId>tomcat7-maven-plugin</artifactId>
                <configuration>
                    <port>8001</port>
                    <path>/</path>
                </configuration>
                <executions>
                    <execution>
                        <!-- 打包完成后,运行服务 -->
                        <phase>package</phase>
                        <goals>
                            <goal>run</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

5、JMeter测试

6、添加一个监听

7、测试

http://localhost:8001/kill

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