异常日志如下:

org.springframework.jdbc.UncategorizedSQLException: Error attempting to get column 'DATA_SOURCE' from result set. Cause: java.sql.SQLException: Error
; uncategorized SQLException; SQL state [null]; error code [0]; Error; nested exception is java.sql.SQLException: Error
at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:92)
at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:441)
at com.sun.proxy.$Proxy155.selectList(Unknown Source)
at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:224)
at com.baomidou.mybatisplus.core.override.MybatisMapperMethod.executeForMany(MybatisMapperMethod.java:166)
at com.baomidou.mybatisplus.core.override.MybatisMapperMethod.execute(MybatisMapperMethod.java:77)
at com.baomidou.mybatisplus.core.override.MybatisMapperProxy$PlainMethodInvoker.invoke(MybatisMapperProxy.java:148)
at com.baomidou.mybatisplus.core.override.MybatisMapperProxy.invoke(MybatisMapperProxy.java:89)
at com.sun.proxy.$Proxy248.selectList(Unknown Source)
at com.sky.sparrow.aft.service.impl.AftStDetailsServiceImpl.rebuildE01(AftStDetailsServiceImpl.java:533)
at com.sky.sparrow.aft.service.impl.AftStDetailsServiceImpl$$FastClassBySpringCGLIB$$f791249.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:689)
at com.sky.sparrow.aft.service.impl.AftStDetailsServiceImpl$$EnhancerBySpringCGLIB$$a10260ac.rebuildE01(<generated>)
at com.sky.sparrow.aft.service.impl.AftSubmitTaskServiceImpl.rebuild(AftSubmitTaskServiceImpl.java:292)
at com.sky.sparrow.aft.service.impl.AftSubmitTaskServiceImpl$$FastClassBySpringCGLIB$$427cb7e3.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:689)
at com.sky.sparrow.aft.service.impl.AftSubmitTaskServiceImpl$$EnhancerBySpringCGLIB$$be8ca1ba.rebuild(<generated>)
at com.sky.sparrow.aft.controller.AftSubmitTaskController.rebuild(AftSubmitTaskController.java:173)
at com.sky.sparrow.aft.controller.AftSubmitTaskController$$FastClassBySpringCGLIB$$5aef7011.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:783)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:753)
at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:89)
at com.sky.sparrow.common.log.aspect.SysLogAspect.around(SysLogAspect.java:44)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:634)
at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:624)
at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:72)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:175)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:753)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:97)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:753)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:698)
at com.sky.sparrow.aft.controller.AftSubmitTaskController$$EnhancerBySpringCGLIB$$9b875e5f.rebuild(<generated>)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:150)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:117)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1067)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:665)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:750)
at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:327)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:115)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:81)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:121)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:115)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:126)
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:81)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:105)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:149)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
at org.springframework.security.oauth2.provider.authentication.OAuth2AuthenticationProcessingFilter.doFilter(OAuth2AuthenticationProcessingFilter.java:176)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:103)
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:89)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
at org.springframework.security.web.header.HeaderWriterFilter.doHeadersAfter(HeaderWriterFilter.java:90)
at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:75)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:110)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:80)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:55)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:211)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:183)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:358)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:271)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:96)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at com.sky.sparrow.common.data.tenant.TenantContextHolderFilter.doFilter(TenantContextHolderFilter.java:48)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
at io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:68)
at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
at io.undertow.servlet.handlers.RedirectDirHandler.handleRequest(RedirectDirHandler.java:68)
at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:117)
at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.SendErrorPageHandler.handleRequest(SendErrorPageHandler.java:52)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:280)
at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:79)
at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:134)
at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:131)
at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)
at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:260)
at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:79)
at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:100)
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:387)
at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:852)
at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:2019)
at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1558)
at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1423)
at org.xnio.XnioWorker$WorkerThreadFactory$1$1.run(XnioWorker.java:1280)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.sql.SQLException: Error
at com.alibaba.druid.pool.DruidDataSource.handleConnectionException(DruidDataSource.java:1811)
at com.alibaba.druid.pool.DruidPooledConnection.handleException(DruidPooledConnection.java:137)
at com.alibaba.druid.pool.DruidPooledStatement.checkException(DruidPooledStatement.java:93)
at com.alibaba.druid.pool.DruidPooledResultSet.checkException(DruidPooledResultSet.java:54)
at com.alibaba.druid.pool.DruidPooledResultSet.getTimestamp(DruidPooledResultSet.java:367)
at org.apache.ibatis.type.DateTypeHandler.getNullableResult(DateTypeHandler.java:39)
at org.apache.ibatis.type.DateTypeHandler.getNullableResult(DateTypeHandler.java:28)
at org.apache.ibatis.type.BaseTypeHandler.getResult(BaseTypeHandler.java:85)
at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.createUsingConstructor(DefaultResultSetHandler.java:711)
at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.createByConstructorSignature(DefaultResultSetHandler.java:694)
at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.createResultObject(DefaultResultSetHandler.java:658)
at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.createResultObject(DefaultResultSetHandler.java:631)
at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.getRowValue(DefaultResultSetHandler.java:398)
at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleRowValuesForSimpleResultMap(DefaultResultSetHandler.java:355)
at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleRowValues(DefaultResultSetHandler.java:329)
at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleResultSet(DefaultResultSetHandler.java:302)
at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleResultSets(DefaultResultSetHandler.java:195)
at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:65)
at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:79)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:64)
at com.sun.proxy.$Proxy397.query(Unknown Source)
at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:63)
at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:325)
at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156)
at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109)
at com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor.intercept(MybatisPlusInterceptor.java:81)
at org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:62)
at com.sun.proxy.$Proxy396.query(Unknown Source)
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:151)
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:145)
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:140)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:427)
... 147 common frames omitted
Caused by: java.lang.RuntimeException: 错误的日期时间类型格式
at dm.jdbc.driver.DBError.throwRuntimeException(DBError.java:652)
at dm.jdbc.util.DateUtil.toDT(DateUtil.java:707)
at dm.jdbc.util.DateUtil.toTimestamp(DateUtil.java:142)
at dm.jdbc.convert.DB2J.toTimestamp(DB2J.java:1117)
at dm.jdbc.driver.DmdbResultSet.do_getTimestamp(DmdbResultSet.java:993)
at dm.jdbc.driver.DmdbResultSet.do_getTimestamp(DmdbResultSet.java:766)
at dm.jdbc.driver.DmdbResultSet.do_getTimestamp(DmdbResultSet.java:1085)
at dm.jdbc.driver.DmdbResultSet.getTimestamp(DmdbResultSet.java:2559)
at com.alibaba.druid.filter.FilterChainImpl.resultSet_getTimestamp(FilterChainImpl.java:1258)
at com.alibaba.druid.filter.FilterAdapter.resultSet_getTimestamp(FilterAdapter.java:1829)
at com.alibaba.druid.filter.FilterChainImpl.resultSet_getTimestamp(FilterChainImpl.java:1254)
at com.alibaba.druid.proxy.jdbc.ResultSetProxyImpl.getTimestamp(ResultSetProxyImpl.java:740)
at com.alibaba.druid.pool.DruidPooledResultSet.getTimestamp(DruidPooledResultSet.java:365)
... 182 common frames omitted

原因:
实体注解@Builder @Data 所造成的
注:lombok@Data和@Builder一起用无法添加无参构造方法。
数据库查询返回的是实体对象,导致无法new一个新的对象,进而无法做映射。

原理代码分析:
org\apache\ibatis\executor\resultset\DefaultResultSetHandler.class
createResultObject()方法中有判断,如果没有默认的无参构造方法就会走默认有参构造方法,查到的数据实体对象字段数据类型和有参构造方法的字段进行数据类型匹配

解决:

此时项目运行会编译报错,此时可以 在实体中再添加无参构造函数。(mybayties-plus继续添加无参构造方法注解即可处理:@NoArgsConstructor)
全部注解如下:
@Builder
@AllArgsConstructor
@NoArgsConstructor

如图:

springcloud 实体类使用@Builder@AllArgsConstructor两个注解后查询执行操作时报数据转换异常的更多相关文章

  1. 通过JPA注解映射视图的实体类 jpa 视图 无主键 @Query注解的用法(Spring Data JPA) jpa 使用sql语句

    参考: https://blog.csdn.net/qq465235530/article/details/68064074 https://www.cnblogs.com/zj0208/p/6008 ...

  2. DataSet的灵活,实体类的方便,DTO的效率:SOD框架的数据容器,打造最适合DDD的ORM框架

    引言:DDD的困惑 最近,我看到园子里面有位朋友的一篇博客 <领域驱动设计系列(一):为何要领域驱动设计? >文章中有下面一段话,对DDD使用产生的疑问: •没有正确的使用ORM, 导致数 ...

  3. asp.net 自动遍历实体类

    最近做项目需要读取修改前数据库中被修改的数据所有的信息,一开始想要在model层的每个类都写一个函数return一串字符串, 但是由于表太多,实体类数量太大,写出来太浪费时间,所以决定写一个通用的方法 ...

  4. eclipse逆向生成hibernate的实体类(注解和配置文件)

    eclipse从数据库逆向生成Hibernate实体类(注解和配置文件) 分类: hibernate 数据库 java 2011-10-22 21:28 2915人阅读 评论(8) 收藏 举报 做项目 ...

  5. C#实体类get和set的作用

    一,实体类属性访问存在两种写法: //第一种写法 private int _id; public int Id { set { _id = value; } get { return _id; } } ...

  6. EasyCode Entity 实体类模板 IDEA

    自己修改了一份EasyCode的实体类模板,防止日后找不到在这里存一下 修改了如下内容: 取消生成GetSet方法,改用Lombok 修改默认命名规则,改为[表名Entity.java] 取消了实现序 ...

  7. eclipse从数据库逆向生成Hibernate实体类

    做项目必然要先进行数据库表设计,然后根据数据库设计建立实体类(VO),这是理所当然的,但是到公司里做项目后,让我认识到,没有说既进行完数据库设计后还要再“自己”建立一变VO.意思是,在项目设计时,要么 ...

  8. xml文件生成方式一(字符串拼接,将多实体类对象写入xml文件)

    1.xml文件生成,拼接字符串使用StringBuffer或StringBuilder 2.拼接好后写入文件即可,将多个实体类写入xml文件 3.这种方式比较简单,但是操作也比较麻烦 4.下面是我的代 ...

  9. MyBatis探究-----为实体类Bean取别名,配置typeAliases

    1.单个实体类设置别名 1.1 不使用alias <typeAliases> <!-- typeAlias:为某个java类型起别名 ; type:指定要起别名的类型全类名; 默认别 ...

  10. Eclipse中通过Hibernate Tools插件实现从数据库逆向生成Hibernate带注解的实体类

    一.安装hibernate tools插件 1.在线安装 通过Eclipse的Help->Install New Software 在线安装插件,插件连接为: eclipse helios(3. ...

随机推荐

  1. Redis系列19:LRU内存淘汰算法分析

    Redis系列1:深刻理解高性能Redis的本质 Redis系列2:数据持久化提高可用性 Redis系列3:高可用之主从架构 Redis系列4:高可用之Sentinel(哨兵模式) Redis系列5: ...

  2. 继copilot之后,又一款免费帮你写代码的插件

    写在前面 在之前的文章中推荐过一款你写注释,它就能帮你写代码的插件copilot copilot写代码的能力没得说,但是呢copilot试用没几天之后就收费了 传送门:你写注释她帮你写代码 按理说这么 ...

  3. ETL之apache hop系列3-hop Server环境部署与客户端发布管道工作流

    前言 该文档主要是apache hop 2.5的 Windows 10和Linux docker环境部署和客户端发布工作流和管道的相关内容 不使用Docker直接使用应用程序包,下载压缩包文件后,需要 ...

  4. 淘宝商品详情 API的使用说明

    淘宝平台提供了 API 接口可以用于获取淘宝商品详情信息.通过 API 接口,我们可以获取到商品的基本信息.价格.评论及评价等详细信息.以下是使用说明: 获取淘宝API账号 在获取淘宝商品详情 API ...

  5. OptiX8入门(一)optixHello

    本人初学者,如有错误和更好的表述,请指出 环境:CLion+VS2022+CUDA Toolkit 12.0.1+OptiX8 下载好后打开SDK就可以看到OptiX官方提供的许多例子,CMake配置 ...

  6. MySQL-通过存储过程来添加和删除分区(List分区)

    1.背景原因 当前MySQL不支持在添加和删除分区时,使用IF NOT EXISTS和IF EXISTS.所以在执行调度任务时,直接通过ADD PARTITION和DROP PARTITION不可避免 ...

  7. 深信服 9-15笔试 C卷

    深信服 9-15笔试 C卷 15题填空,4道编程 填空 填空比较基础,考察了数据结构(队列,二叉树),和简单编程,二进制等. 1.1 2 3 4 5 入队,然后队首弹出,6 7 8 9 10 入队,然 ...

  8. Kruskal重构树 学习笔记

    Kruskal 重构树 最大生成树将部分内容倒置即可 回顾:Kruskal 基本信息 求解最小生成树 时间复杂度:\(O(m \log m)\) 更适合稀疏图 算法思想 按照边权从小到大排序 依次枚举 ...

  9. maven缺失ojdbc6解决方法(手动安装ojdbc6)

    maven缺失ojdbc6解决方法(手动安装ojdbc6) 1. 首先下载ojdbc6jar包 jar下载地址一(需登录) jar下载地址二(直接下载) 2. 进入到jar包所在文件夹,执行cmd命令 ...

  10. Python面试题——面向对象题

    1.简述面向对象的三大特性. 封装: 封装指的是把一堆数据属性与方法数据放在一个容器中,这个容器就是对象.让对象可以通过 "." 来调用对象中的数据属性与方法属性. 继承: 继承指 ...