有谁知道为什么它不起作用？
Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled.
06/04/2017 14:11:24.732 ERROR [main] - org.springframework.boot.SpringApplication: Application startup failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jpaMappingContext': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: At least one JPA metamodel must be present!
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1628)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:742)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:866)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:737)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:370)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:314)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1162)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1151) …我有一个带有Tomcat8 + SQL Server2012 JDBC驱动程序类型4的webapp（JSP / Servlet）：JTDS旧版本1.2.5（http://jtds.sourceforge.net/）
我更改了这种查询，添加了Prepared Statement（服务器分页）
Sting DDXsql = "SELECT '?' *, ( DDX_RECORD_COUNT / '?' + 1 ) AS DDX_PAGE_COUNT
FROM
( SELECT '?' *
FROM ( SELECT '?' *,
(SELECT COUNT(*) " + "FROM "
+ session.getAttribute("DatabaseName") + ".G1_grid "
+ sqlFrom
+ sqlWhere + " "
+ " ) AS DDX_RECORD_COUNT "
+ "FROM " + session.getAttribute("DatabaseName") + ".G1_grid "
+ sqlFrom
+ sqlWhere + " "
+ " ORDER BY '?' …我有一个像上面一样的 junit 测试，但是当我启动测试时，我收到这个错误（JDK 13.0.1）：
java.lang.UnsupportedOperationException: Reflective setAccessible(true) disabled
java.lang.IllegalAccessException: class io.netty.util.internal.PlatformDependent0$6 cannot access class jdk.internal.misc.Unsafe (in module java.base) because module java.base does not export jdk.internal.misc to unnamed module @4a94ee4
我的工具是 Intellij CE Edition 2019.3.1。这是我的类和 pom 文件：
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
import org.springframework.web.reactive.function.client.WebClient;
import reactor.core.publisher.Flux;
class WebClientStockClientIntegrationTest {
private static final String SYMBOL = "EUR";
private WebClient webClient = WebClient.builder().build();
@Test
void shouldRetrieveStockPricesFromStockService() {
WebClientStockClient webClientStockClient = new WebClientStockClient(webClient);
Flux<StockPrice> prices = webClientStockClient.pricesFor(SYMBOL);
Assertions.assertNotNull(prices);
Assertions.assertTrue(prices.take(5).count().block() > 0);
}
}
我的带有 spring-boot …