spring boot2.0.4集成druid，用jmeter并发测试工具调用接口，druid查看监控的结果

    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;
        }

    }

    @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);
        }
    }

    @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));
        }

    }