我一直在为一个使我发疯的问题奋斗10个小时。
每https://docs.microsoft.com/en-us/sql/connect/jdbc/using-basic-data-types?view=sql-server-2017
datetime类型从SQL映射为java.sql.Timestamp类型的Java。我知道错误来自时间戳映射，因为从查询和构造函数中删除该列是可行的。
这是@SqlResultMapping：
private CountDownTimer timer;
private TextView txtProgress;
private Button stopButton;
...
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
txtProgress = findViewById(R.id.tv);
timer = new CountDownTimer(30000, 500) {
public void onTick(long millisUntilFinished) {
handler.post(() -> {
txtProgress.setText("any text");
});
}
public void onFinish() { }
}.start();
findViewById(R.id.stopButton).setOnClickListener(v -> timer.cancel());
}
）
以下是查询：
@SqlResultSetMapping(
name = "PoemMap",
classes = @ConstructorResult(
targetClass = PoemOutDto.class,
columns = {
@ColumnResult(name = "id", type = BigDecimal.class),
@ColumnResult(name = "title"),
@ColumnResult(name = "category"),
@ColumnResult(name = "description"),
@ColumnResult(name = "publication_year", type = Integer.class),
@ColumnResult(name = "publication_stmt"),
@ColumnResult(name = "source_desc"),
@ColumnResult(name = "period"),
@ColumnResult(name = "form"),
@ColumnResult(name = "confirmed", type = boolean.class),
@ColumnResult(name = "confirmed_at", type = Timestamp.class),
@ColumnResult(name = "confirmed_by"),
@ColumnResult(name = "pending_revision", type = boolean.class),
@ColumnResult(name = "author_id", type = BigDecimal.class),
@ColumnResult(name = "first_name"),
@ColumnResult(name = "last_name"),
@ColumnResult(name = "poem_text")
}
)
这是查询应该映射到的POJO：
public List getAll() {
LOGGER.debug("Returning all poems.");
Query query = em.createNativeQuery("SELECT poem.id,\n" +
"\t poem.title,\n" +
"\t poem.category,\n" +
"\t poem.description, \n" +
"\t poem.publication_year,\n" +
"\t poem.publication_stmt,\n" +
"\t poem.source_desc,\n" +
"\t poem.period,\n" +
"\t poem.form,\n" +
"\t poem.confirmed,\n" +
"\t poem.confirmed_at, \n" +
"\t poem.confirmed_by, \n" +
"\t poem.pending_revision,\n" +
"\t poem.author_id,\n" +
"\t [author].[first_name],\n" +
"\t [author].[last_name],\n" +
"\t SUBSTRING(\n" +
"\t\t (\n" +
"\t\t\t SELECT ' ' + poem_text.text + '\n' AS [text()]\n" +
"\t\t\t FROM [dbo].[poem_text] poem_text\n" +
"\t\t\t WHERE poem_text.poem_id = poem.id\n" +
"\t\t\t FOR XML PATH('')\n" +
"\t\t ), 2, 1000) [poem_text]\n" +
"\t FROM [dbo].[poem] poem\n" +
"\t INNER JOIN [author] ON poem.author_id = [author].[id]", "PoemMap");
List resultList = query.getResultList();
LOGGER.debug(resultList);
return resultList;
}
尝试运行此查询会导致以下错误：
@JsonSerialize
public class PoemOutDto {
private BigDecimal id;
private String title;
private String category;
private String description;
private Integer publicationYear;
private String publicationStmt;
private String sourceDesc;
private String period;
private String form;
private Confirmation confirmation;
private Author author;
private String text;
public PoemOutDto(BigDecimal id, String title, String category, String description, Integer publicationYear,
String publicationStmt, String sourceDesc, String period, String form, boolean confirmed,
Timestamp confirmedAt, String confirmedBy, boolean pendingRevision, BigDecimal authorId,
String firstName, String lastName, String text) {
this.id = id;
this.title = title;
this.category = category;
this.description = description;
this.publicationYear = publicationYear;
this.publicationStmt = publicationStmt;
this.sourceDesc = sourceDesc;
this.period = period;
this.form = form;
this.confirmation = new Confirmation();
this.confirmation.setConfirmed(confirmed);
this.confirmation.setConfirmedAt(confirmedAt);
this.confirmation.setConfirmedBy(confirmedBy);
this.confirmation.setPendingRevision(pendingRevision);
this.author = new Author();
this.author.setId(authorId.longValue());
this.author.setFirstName(firstName);
this.author.setLastName(lastName);
this.text = text;
}
Getters/Setters ommited.
我全神贯注。也许我想念什么？
非常感谢您的帮助。
完整堆栈跟踪：
java.lang.IllegalArgumentException: Could not locate appropriate constructor on class : com.sonnets.sonnet.persistence.dtos.poetry.PoemOutDto
解决方案：
MS SQL类型“ datetime”映射为Java类型“ java.util.Date”，只需更改POJO构造函数中的类型声明即可。
java.lang.IllegalArgumentException: Could not locate appropriate constructor on class : com.sonnets.sonnet.persistence.dtos.poetry.PoemOutDto
at org.hibernate.loader.custom.ConstructorResultColumnProcessor.resolveConstructor(ConstructorResultColumnProcessor.java:92) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.loader.custom.ConstructorResultColumnProcessor.performDiscovery(ConstructorResultColumnProcessor.java:45) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.loader.custom.CustomLoader.autoDiscoverTypes(CustomLoader.java:482) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.loader.Loader.processResultSet(Loader.java:2214) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.loader.Loader.getResultSet(Loader.java:2170) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1931) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1893) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.loader.Loader.doQuery(Loader.java:938) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:341) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.loader.Loader.doList(Loader.java:2692) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.loader.Loader.doList(Loader.java:2675) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2507) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.loader.Loader.list(Loader.java:2502) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:335) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.internal.SessionImpl.listCustomQuery(SessionImpl.java:2200) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.internal.AbstractSharedSessionContract.list(AbstractSharedSessionContract.java:1016) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.query.internal.NativeQueryImpl.doList(NativeQueryImpl.java:152) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.query.internal.AbstractProducedQuery.list(AbstractProducedQuery.java:1414) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.query.Query.getResultList(Query.java:146) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at com.sonnets.sonnet.services.PoemService.getAll(PoemService.java:305) ~[classes/:na]
at com.sonnets.sonnet.services.PoemService$$FastClassBySpringCGLIB$$d5a6638e.invoke(<generated>) ~[classes/:na]
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) ~[spring-core-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:746) ~[spring-aop-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) ~[spring-aop-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:294) ~[spring-tx-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98) ~[spring-tx-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) ~[spring-aop-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688) ~[spring-aop-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at com.sonnets.sonnet.services.PoemService$$EnhancerBySpringCGLIB$$503a365f.getAll(<generated>) ~[classes/:na]
at com.sonnets.sonnet.controllers.PoemController.getAllPoems(PoemController.java:78) ~[classes/:na]
at com.sonnets.sonnet.controllers.PoemController$$FastClassBySpringCGLIB$$5b0f93ea.invoke(<generated>) ~[classes/:na]
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) ~[spring-core-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:684) ~[spring-aop-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at com.sonnets.sonnet.controllers.PoemController$$EnhancerBySpringCGLIB$$485f4288.getAllPoems(<generated>) ~[classes/:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:564) ~[na:na]
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:209) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:877) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:783) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:991) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:974) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:866) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:635) ~[tomcat-embed-core-8.5.31.jar:8.5.31]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:851) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) ~[tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) ~[tomcat-embed-websocket-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31]
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:158) ~[spring-boot-actuator-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:126) ~[spring-boot-actuator-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:111) ~[spring-boot-actuator-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31]
at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:84) ~[spring-boot-actuator-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320) ~[spring-security-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127) ~[spring-security-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91) ~[spring-security-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:119) ~[spring-security-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137) ~[spring-security-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111) ~[spring-security-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170) ~[spring-security-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) ~[spring-security-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.security.oauth2.provider.authentication.OAuth2AuthenticationProcessingFilter.doFilter(OAuth2AuthenticationProcessingFilter.java:176) ~[spring-security-oauth2-2.3.3.RELEASE.jar:na]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116) ~[spring-security-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:66) ~[spring-security-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105) ~[spring-security-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56) ~[spring-security-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215) ~[spring-security-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178) ~[spring-security-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:357) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:270) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31]
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31]
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) ~[tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:496) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1468) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.31.jar:8.5.31]
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1135) [na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) [na:na]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.31.jar:8.5.31]
at java.base/java.lang.Thread.run(Thread.java:844) [na:na]
答案 0 :(得分：1)
此替代方法对我有用。在ColumnResult处发出“ confirmed_at”列的类型，还将构造函数中的“ confirmed_at”字段声明为Object.class。然后，在将其分配给实例变量时，可以将其强制转换为Timestamp。
@SqlResultSetMapping(
name = "PoemMap",
classes = @ConstructorResult(
targetClass = PoemOutDto.class,
columns = {
@ColumnResult(name = "id", type = BigDecimal.class),
@ColumnResult(name = "title"),
@ColumnResult(name = "category"),
@ColumnResult(name = "description"),
@ColumnResult(name = "publication_year", type = Integer.class),
@ColumnResult(name = "publication_stmt"),
@ColumnResult(name = "source_desc"),
@ColumnResult(name = "period"),
@ColumnResult(name = "form"),
@ColumnResult(name = "confirmed", type = boolean.class),
// Emit type
@ColumnResult(name = "confirmed_at"),
@ColumnResult(name = "confirmed_by"),
@ColumnResult(name = "pending_revision", type = boolean.class),
@ColumnResult(name = "author_id", type = BigDecimal.class),
@ColumnResult(name = "first_name"),
@ColumnResult(name = "last_name"),
@ColumnResult(name = "poem_text")
}
)
public PoemOutDto(BigDecimal id, String title, String category, String description, Integer publicationYear,
String publicationStmt, String sourceDesc, String period, String form, boolean confirmed,
// Declare as Object
Object confirmed_at,
String confirmedBy, boolean pendingRevision, BigDecimal authorId,
String firstName, String lastName, String text) {
this.id = id;
this.title = title;
this.category = category;
this.description = description;
this.publicationYear = publicationYear;
this.publicationStmt = publicationStmt;
this.sourceDesc = sourceDesc;
this.period = period;
this.form = form;
this.confirmation = new Confirmation();
this.confirmation.setConfirmed(confirmed);
// MAY CAST TO TIMESTAMP
this.confirmation.setConfirmedAt((Timestamp) confirmed_at);
this.confirmation.setConfirmedBy(confirmedBy);
this.confirmation.setPendingRevision(pendingRevision);
this.author = new Author();
this.author.setId(authorId.longValue());
this.author.setFirstName(firstName);
this.author.setLastName(lastName);
this.text = text;
}
答案 1 :(得分：0)
我认为您得到的不匹配是由于尝试进行的实际列值与字段值之间的转换引起的。
在ConstructorResultColumnProcessor#resolveConstructor处添加一个断点并检查实际的列值（然后更正字段值）应该可以解决此问题。