小编ip6*_*696的帖子

我创建了一个随机流

Random random = new Random();
Stream<Integer> boxed = random.ints(0, 100000000).boxed();

但我需要将60%的数字生成为0,而其余数字可以是真正随机的.我该怎么做？

编辑:

我只需要正数而且在0到100之间

1
2
0
0
9
0
0
1
12

例如，我在UserService中有以下方法：

  @Override
  @Transactional
  public UserDto create(UserDto userDto) {

    User dbUser = userRepository.findOne(userDto.getId());

    if (dbUser != null) {
      throw new AuthException(AuthException.ErrorCode.DUPLICATE_USER_EXCEPTION);
    }

    User oneByLogin = userRepository.findOneByLogin(userDto.getLogin());
    if (oneByLogin != null) {
      throw new AuthExceptionAuthException.ErrorCode.DUPLICATE_LOGIN_EXCEPTION);
    }

    User newUser = new User();
    newUser.setGuid(UUID.randomUUID().toString());
    newUser.setInsertDate(new Date());
    newUser.setFirstName(userDto.getFirstName());
    newUser.setLastName(userDto.getLastName());
    newUser.setLogin(userDto.getLogin());
    newUser.setPassword(userDto.getPassword());
    newUser.setAuthToken(TokenGenerator.nextToken());
    newUser.setAuthTokenCreatedDate(new Date());

    User savedUser = userRepository.save(newUser);

    userDto.setAuthToken(savedUser.getAuthToken());
    log.info("User {0} created", savedUser.getLogin());
    return userDto;
  }

如何为该方法创建单元测试？我接下来尝试了：

  @Test
  public void createUser() {

    UserDto userDtoRequest = new UserDto();
    userDtoRequest.setLogin("Alex");
    userDtoRequest.setPassword("123");

    UserDto found = userService.create(userDtoRequest);
    assertThat(found.getAuthToken()).isNotEmpty();
} …

我实现这样的分页:

List<Products> products = productRepository.findAllProducts(productsRequest.getInitiatorType(), "ACTIVE",
      new PageRequest(page, 100, Sort.Direction.DESC, "insertDate"));

但是如何获得此查询的总大小？只复制这样的查询？

  @Query("SELECT t FROM Products t WHERE t.isApproved = true AND t.partnerId = ?1 AND t.categories.status = ?2")
  List<OpcClProducts> findAllOpcClProducts(String senderId, String status, Pageable pageable);


  @Query("SELECT COUNT(t) FROM Products t WHERE t.isApproved = true AND t.partnerId = ?1 AND t.categories.status = ?2")
  long getTotalCount(String senderId, String status);

并调用2个查询:for totalCount和数据？

我有带有 2 个属性文件的 Spring Boot 服务器：application-local.properties和application-test.properties

在每个文件中，我都有用于开发机器和测试的配置。像这样开始：

-Dspring.profiles.active=local

但是在新的 Spring Boot 项目中，我使用了.yaml配置文件。而且我不明白如何使用profileswith .yaml. 我尝试阅读文档，但什么也不懂。你能一步一步解释该怎么做吗？

我需要两个文件？

application-local.yaml 和 application-test.yaml

或者我需要在一个application.yaml文件中写入所有内容？如果在一个文件中，我如何分离配置？这是我的配置：

server:
  path: ***
  port: ***

cxf:
  path: ***

spring.datasource:
  type: com.zaxxer.hikari.HikariDataSource
  driver-class-name: oracle.jdbc.OracleDriver
  url: ***
  username: ***
  password: ***
  hikari:
    minimumIdle: 5
    maximumPoolSize: 20
    idleTimeout: 30000
    poolName: SpringBootJPAHikariCP
    maxLifetime: 2000000
    connectionTimeout: 30000
    connection-test-query: SELECT 1 FROM DUAL

spring.jpa:
  show-sql: false
  database-platform: org.hibernate.dialect.Oracle10gDialect
  properties.hibernate.jdbc.batch_size: 30
  properties.hibernate.cache.use_second_level_cache: false
  hibernate:
    ddl-auto: validate


spring.cache:
  ehcache: …