一、项目介绍（本项目用的编程语言是jdk8，项目源码: https://github.com/zhzhair/mybatis-druid-spring-boot.git）
1.引入pom依赖：
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.2</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>1.1.14</version>
</dependency>
</dependencies>
由引入的jar包可知，项目用MySQL + mybatis + redis架构，数据库连接池用阿里的druid
2.配置文件application.yml配置（配置MySQL数据源、druid连接池及监控、redis）：
spring:
datasource:
driver-class-name: com.mysql.jdbc.Driver
url: "jdbc:mysql://127.0.0.1:3306/demo?useUnicode=true&characterEncoding=UTF-8&useSSL=false"
username: root
password: 123456
type: com.alibaba.druid.pool.DruidDataSource
druid:
max-active: 100
min-idle: 10
max-wait: 60000
filter:
stat:
merge-sql: true
slow-sql-millis: 200
test-on-borrow: true
validation-query: SELECT 1
use-global-data-source-stat: true
# 配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙
# http://127.0.0.1:8080/druid2/index.html
filters: stat,wall,slf4j
pool-prepared-statements: true
max-pool-prepared-statement-per-connection-size: 20
redis:
host: 127.0.0.1
password:
database: 0
timeout: PT1M1S
jedis:
pool.max-active: 200
pool.max-idle: 50
pool.max-wait: PT-1S
pool.min-idle: 10
table-num: 64
3.引入druid配置类（sql和uri监控访问地址:http://localhost:8080/druid/index.html,用户名和密码分别是admin和123456）：
package com.example.demo.config.druid;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class DruidConfiguration {
@Bean
public ServletRegistrationBean DruidStatViewServle2() {
//org.springframework.boot.context.embedded.ServletRegistrationBean提供类的进行注册.
ServletRegistrationBean<StatViewServlet> servletRegistrationBean = new ServletRegistrationBean<>(new StatViewServlet(), "/druid2/*");
//添加初始化参数：initParams
servletRegistrationBean.addUrlMappings("/druid/*");
//白名单：
// servletRegistrationBean.addInitParameter("allow","192.168.1.106");
//IP黑名单 (存在共同时，deny优先于allow) : 如果满足deny的话提示:Sorry, you are not permitted to view this page.
// servletRegistrationBean.addInitParameter("deny", "192.168.1.73");
//登录查看信息的账号密码.
servletRegistrationBean.addInitParameter("loginUsername","admin");
servletRegistrationBean.addInitParameter("loginPassword","123456");
//是否能够重置数据.
servletRegistrationBean.addInitParameter("resetEnable","false");
return servletRegistrationBean;
}
@Bean
public FilterRegistrationBean druidStatFilter2(){
FilterRegistrationBean<WebStatFilter> filterRegistrationBean = new FilterRegistrationBean<>(new WebStatFilter());
filterRegistrationBean.setName("druidFilter2");
//添加过滤规则.
filterRegistrationBean.addUrlPatterns("/*");
//添加不需要忽略的格式信息.
filterRegistrationBean.addInitParameter("exclusions","*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid2/*");
return filterRegistrationBean;
}
}
4.在测试类创建表user_*和user_mobile_*：
@RunWith(SpringRunner.class)
@SpringBootTest
public class DemoApplicationTests { @Resource
private TestUserService userService;
@Test
public void contextLoads() {
userService.dropTables();
userService.createTables();
} } @Service
public class TestUserServiceImpl implements TestUserService {
@Resource
private UserMapper userMapper;//jdbc操作接口
@Value("${table-num}")
private int tableNum;//分表的个数 @Override
public void dropTables() {
IntStream.range(0,tableNum).parallel().forEach(this::dropTables);
} private void dropTables(int i){
userMapper.dropTable("user_" + i);
userMapper.dropTable("user_mobile_" + i);
} @Override
public void createTables() {
IntStream.range(0,tableNum).parallel().forEach(this::createTables);
} private void createTables(int i){
String suffix = String.valueOf(i);
userMapper.createTableUser(suffix);
userMapper.createTableUserMobile(suffix);
}
}
5.编写restful风格的接口（包括登录和注册）：
@RestController
@RequestMapping("test/user")
public class TestUserController extends BaseController {
@Resource
private TestUserService userService;
@Resource
private TokenManager tokenManager;//给登录用户生成token，并放到redis
@RequestMapping(value = "/loginByMobile", method = {RequestMethod.GET}, produces = {MediaType.APPLICATION_JSON_VALUE})
public BaseResponse<LoginResponse> loginByMobile() {
BaseResponse<LoginResponse> baseResponse = new BaseResponse<>();
Integer userId = userService.getUserIdByMobile();
if(userId != null){
baseResponse.setCode(0);
baseResponse.setMsg("手机号登录成功");
String token = tokenManager.generateToken(userId);
LoginResponse loginResponse = new LoginResponse();
loginResponse.setUserId(userId);
loginResponse.setToken(token);
loginResponse.setExpire(System.currentTimeMillis() + 3600 * 1000);
baseResponse.setData(loginResponse);
}else{
baseResponse.setCode(-3);
baseResponse.setMsg("手机号未注册");
}
return baseResponse;
} @RequestMapping(value = "/register", method = {RequestMethod.POST}, produces = {MediaType.APPLICATION_JSON_VALUE})
public BaseResponse<User> register() {
BaseResponse<User> baseResponse = new BaseResponse<>();
Integer userId = userService.getUserIdByMobile();
if(userId == null){
User user = userService.register();
baseResponse.setCode(0);
baseResponse.setData(user);
baseResponse.setMsg("注册成功");
}else{
baseResponse.setCode(1);
baseResponse.setMsg("手机号已被注册");
}
return baseResponse;
}
} @Service
public class TestUserServiceImpl implements TestUserService {
@Resource
private UserService userService;
@Value("${table-num}")
private int tableNum;//分表的个数 @Override
public Integer getUserIdByMobile() {
return userService.getUserIdByMobile(getMobileStr());
} @Override
public User register() {
UserRequest userRequest = new UserRequest();
userRequest.setMobile(getMobileStr());
userRequest.setIcon("http://127.0.0.1/"+getMobileStr()+".jpg");
int rand = new Random().nextInt(4);
userRequest.setNickname(new String[]{"xiaoming","xiaohong","xiaoqiang","xiaoli"}[rand]);
return userService.register(userRequest);
} /**
* 模拟手机号
*/
private String getMobileStr(){
String[] strings = {"13","15","16","18"};
String beginString = strings[new Random().nextInt(4)];
int a = new Random().nextInt(10_0000_0000);
String endString = String.valueOf(a);
int length = 9 - endString.length();
StringBuilder stringBuilder = new StringBuilder(beginString);
for (int i = 0; i < length; i++) {
stringBuilder.append("0");
}
return stringBuilder.append(endString).toString();
}
} @Service
public class UserServiceImpl implements UserService {
private final String USER_ID_INC = "USER_ID_INC";
@Resource
private UserMapper userMapper;//jdbc操作接口
@Resource(name = "stringRedisTemplate")
private RedisTemplate<String, String> redisTemplate; @Value("${table-num}")
private int tableNum;//分表的个数 @Transactional(isolation = Isolation.REPEATABLE_READ)
@Override
public User register(UserRequest userRequest) {
String usercode = redisTemplate.opsForValue().get(USER_ID_INC);
Integer userId;
if(usercode == null){//如果redis的数据丢失，就找出最大的userId，并给USER_ID_INC赋值
int temp = 0;
for (int i = 0; i < tableNum; i++) {
Integer maxUserId = userMapper.getMaxUserId(String.valueOf(i));
if(maxUserId != null && temp < maxUserId){
temp = maxUserId;
}
}
userId = temp + 1;
redisTemplate.opsForValue().set(USER_ID_INC,String.valueOf(userId));
}else{
Long num = redisTemplate.opsForValue().increment(USER_ID_INC,1);
userId = Integer.valueOf(num + "");
}
User user = new User();
user.setUserId(userId);
user.setMobile(userRequest.getMobile());
user.setIcon(userRequest.getIcon());
user.setNickname(userRequest.getNickname());
int rem = userId % tableNum;
userMapper.insertUser(user,String.valueOf(rem));
int rem0 = Math.abs(userRequest.getMobile().hashCode()) % tableNum;
String mobile = userRequest.getMobile();
userMapper.insertUserMobile(mobile,userId,String.valueOf(rem0));
return user;
} @Override
public Integer getUserIdByMobile(String mobile) {
int rem = Math.abs(mobile.hashCode()) % tableNum;
return userMapper.getUserByMobile(mobile,String.valueOf(rem));
} }
二、用jmeter做并发测试（jmeter版本4.0）：
1.双击打开bin目录下的jmeter.bat文件，菜单选简体中文：Options->Choose language->Chinese(Simplified)。点文件夹图标可以选择已有的jmeter脚本。
2.右键测试计划->添加->Threads(Users)->线程组，然后配置执行线程数、持续时间等信息。登录和注册我都建了单独的线程组，其中：登录的线程数36000，持续时间600秒；注册的线程数6000，持续时间600秒。
3.右键测试计划->添加->监听器->(查看结果数和聚合报告等，用于分析并发测试结果)。
4.分别右键选中登录和注册的线程组->添加->sampler->HTTP请求，配置如下：
登录和注册的协议都填http，IP都填127.0.0.1，端口号都填8080。登录的方式选GET，注册的方式选POST。登录的路径填/test/user/loginByMobile，注册的路径填/test/user/register。
5.点击打开聚合报告，启动项目，点击菜单栏绿色的三角形图标运行，观察聚合报告的结果如下图所示：
三、查看druid的sql监控和uri监控：
jmeter运行时，访问http://localhost:8080/druid/index.html，sql监控和webUI等监控结果如图所示：
