小编en *_*ris的帖子

我有一个使用spring data/jpa的SpringBoot 2.0.1.RELEASE应用程序

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>

但是当我在Amazon Aurora数据库中进行更新时,我收到此错误:

2018-04-13 09:20 [pool-1-thread-1]错误ohid.enhanced.TableStructure.execute(148) - 无法读取hi值com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException:表'elbar sun.reflect.NativeConstructorAccessorImpl.newInstance0(本机方法)中不存在.hibernate_sequence'

我在要保存的实体中有这个

@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;

我想避免在DB中获取ID的任何缺点.

我有一个SpringBoot应用程序,我正在控制器中进行一些性能测试,我意识到无论我把控制器放在第一个查询,它需要多年的时间与其他人相比......(这是一个远程连接,但我不能改变这个)

long t1 = System.nanoTime();

menuPriceSummaryService.findAllVegan().stream();            

long t2 = System.nanoTime();
long elapsedTimeInSeconds = (t2 - t1) / 1000000000;
System.out.println("elapsedTimeInSeconds1 -> " +  elapsedTimeInSeconds);

t1 = System.nanoTime();

menuPriceSummaryService.findAllVegan();

t2 = System.nanoTime();
elapsedTimeInSeconds = (t2 - t1) / 1000000000;
System.out.println("elapsedTimeInSeconds2 -> " +  elapsedTimeInSeconds);

t1 = System.nanoTime();
menuPriceSummaryService.findAllVegan().parallelStream();
t2 = System.nanoTime();
elapsedTimeInSeconds = (t2 - t1) / 1000000000;
System.out.println("elapsedTimeInSeconds3 -> " +  elapsedTimeInSeconds);

t1 = System.nanoTime();
menuPriceSummaryService.findAllVegan().parallelStream().filter(this::notInMyFavourites);
t2 = System.nanoTime();
elapsedTimeInSeconds = (t2 - t1) / 1000000000;

时间:

elapsedTimeInSeconds1 -> 76
elapsedTimeInSeconds2 …

我在 Postman 中有一个 POST 调用，它返回这个 JSON 对象：

{
    "token": "eyJhbGciOiJIUzUxMiJ9.eyJzdWIiO3Jsb3Blei5hbnRvbmlvODVAZ21haWwuY29tIiwiZXhwIjoxNTkzNjc0MzUxLCJpYXQiOjE1MzMxOTQzNTF9.oTPVkcgF1QcoOsg6KDGOaaTyCQYrWS51QDdRn__MDigivcsuaqUgBhDaTYwQnxOtOCjxDRXO_cqK8i5xBq02bQ"
}

在我的环境中，我设置了一个名为 token

我想设置值。我试过

var data = JSON.parse(responseBody);
postman.setEnvironmentVariable("token", data.message.token);

和

var data = pm.response.json();
pm.environment.set("token", data.message.token);

但两者都有错误：SyntaxError | 无效或意外的令牌

我是 IntelliJ IDEA 的新手，我想像在 Eclipse 中一样执行一个 Junit 测试，但我还没有看到这个选项

我有一个基本的SpringBoot应用程序。使用Spring Initializer，JPA，嵌入式Tomcat，Thymeleaf模板引擎并将其打包为可执行JAR文件。SpringBoot的版本是2.0.1.RELEASE。我已经使用此方法创建了一个从CrudRepository扩展的类存储库

@Query("select us.priceAlertsTapas.tapa from User us left join us.priceAlertsTapas  pat left join pat.tapa tapa where pat.priceAlert = ?1")
    List<Tapa> tapasByUserPriceAlert (PriceAlert pa);

但是当我初始化项目时，我得到了这个错误：

Validation failed for query for method public abstract java.util.List



    at org.springframework.data.jpa.repository.query.SimpleJpaQuery.validateQuery(SimpleJpaQuery.java:93)
    at org.springframework.data.jpa.repository.query.SimpleJpaQuery.<init>(SimpleJpaQuery.java:63)
    at org.springframework.data.jpa.repository.query.JpaQueryFactory.fromMethodWithQueryString(JpaQueryFactory.java:76)
    at org.springframework.data.jpa.repository.query.JpaQueryFactory.fromQueryAnnotation(JpaQueryFactory.java:56)
    at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$DeclaredQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:139)
    at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$CreateIfNotFoundQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:206)
    at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$AbstractQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:79)
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lookupQuery(RepositoryFactorySupport.java:553)
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lambda$mapMethodsToQuery$1(RepositoryFactorySupport.java:546)
    at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
    at java.util.Iterator.forEachRemaining(Iterator.java:116)
    at java.util.Collections$UnmodifiableCollection$1.forEachRemaining(Collections.java:1049)
    at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
    at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
    at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
    at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
    at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
    at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.mapMethodsToQuery(RepositoryFactorySupport.java:548)
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lambda$new$0(RepositoryFactorySupport.java:538)
    at java.util.Optional.map(Optional.java:215)
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.<init>(RepositoryFactorySupport.java:538)
    at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:317)
    at …

我有这个列表,我想按保留顺序订购,但我没有.reversed()在自动完成辅助中找到任何功能

 myMenus(user)
                .stream()
                .filter(mps ->  mps.get1PercentageChange() > 0 &&
                                mps.get2PercentageChange() > 0 &&
                                mps.get3PercentageChange() > 0 &
                                mps.get4PercentageChange() > 0)
                .sorted(comparing(mps -> mps.getDailyPercentageChange()))
                .collect(toList());

我也尝试过:

myMenus(user)
        .stream()
        .filter(mps ->  mps.get1PercentageChange() > 0 &&
                        mps.get2PercentageChange() > 0 &&
                        mps.get3PercentageChange() > 0 &
                        mps.get4PercentageChange() > 0)
        .sorted(comparing(mps -> mps.getDailyPercentageChange()).reversed())
        .collect(toList());

但后来我有编译错误:

Cannot infer type argument(s) for <T, U> comparing(Function<? super T,? 
     extends U>)

我有一个基本的 SpringBoot 应用程序。使用 Spring Initializer、JPA、嵌入式 Tomcat、Thymeleaf 模板引擎，并打包为可执行 JAR 文件。我创建了这个 Repository 类：

@Repository
public interface MenuRepository extends CrudRepository<Menu, Long> {
..
}

和这个服务类

@Service
@Transactional(readOnly = true)
public class MenuService {

     @Autowired
     protected MenuRepository menuRepository;

     @Transactional
     public void delete (Menu menu) {
         menuRepository.delete  (menu);
     }
     ..
}

和这个 Junit 测试：

@ContextConfiguration(classes={TestSystemConfig.class})
@RunWith(SpringRunner.class)
@SpringBootTest(classes = MenuGestApplication.class) 
public class MenuServiceTests {
...
@Test
    public void testDelete () {

        Menu menu = new menu(); 
        menu.setmenuId("bacalla-amb-tomaquet");
        menuService.save(menu);

        MenuPrice menuPrice = new menuPrice(menu);
        menuPrice.setPrice((float)20.0);
        menuPriceService.save(menuPrice);

        MenuPriceSummary …

我有一个基本的 SpringBoot 2.0.3.RELEASE 应用程序，它使用 Spring Initializer、JPA、嵌入式 Tomcat、Thymeleaf 模板引擎和包作为可执行 JAR 文件，在 pom.xml 中有这些依赖项。

我有一个名为 Company 的域对象：

@Entity
@Table(name="t_company")
public class Company implements Serializable {

    /**
     * 
     */
    private static final long serialVersionUID = 1L;

    public Company() {
    }



    /**
     * @param companyName
     */ 
    public Company(String companyName) {
        super();
        this.name = companyName;
    }



    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;

    @NotEmpty
    @Length(max = 100)
    private String name;


    @OneToMany(mappedBy = "company", cascade = CascadeType.ALL, fetch = FetchType.LAZY)
    private Set<User> users = new HashSet<>(); …

我有一个经过此验证的 bean：

@Email(message = "Email is not valid", regexp="{(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*|\"(?:[\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x21\\x23-\\x5b\\x5d-\\x7f]|\\\\[\\x01-\\x09\\x0b\\x0c\\x0e-\\x7f])*\")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\\[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[a-z0-9-]*[a-z0-9]:(?:[\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x21-\\x5a\\x53-\\x7f]|\\\\[\\x01-\\x09\\x0b\\x0c\\x0e-\\x7f])+)\\])}")
@NotEmpty(message = "Email cannot be empty")
private String email;

当电子邮件为空时，消息很好，但是当我输入此文本时

perisava.util.Random@1d7f0036

没有显示错误

我有一个 Spring 5.0.7.RELEASE 应用程序，带有一些 WebLayer 测试，我在我的应用程序中进行了此测试：

@RunWith(SpringRunner.class)
@WebAppConfiguration
public class HongoControllerTest  {


    @Autowired
    private WebApplicationContext wac;

    private MockMvc mockMvc;



    @Before
    public void setup() {

        mockStatic(TranslationUtils.class);
}

但是当我运行测试时出现以下错误：

org.mockito.exceptions.base.MockitoException: 
The used MockMaker SubclassByteBuddyMockMaker does not support the creation of static mocks

Mockito's inline mock maker supports static mocks based on the Instrumentation API.
You can simply enable this mock mode, by placing the 'mockito-inline' artifact where you are currently using 'mockito-core'.
Note that Mockito's inline mock maker is not supported on …