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. 04.使用 github actions+docker 自动部署前后端分离项目 zhontai (.net core+vue)

    前言 Github Actions是什么?是 GitHub 提供的一种持续集成/持续部署(CI/CD)工作流程自动化服务,助力项目的自动化构建.测试和部署. 依托于平台,本文将分享使用 GitHub ...

  2. GORM自定义Gorm.Model实现自动添加时间戳

    废话不说直接开始 官网(http://gorm.io)有给出一套默认的gorm.Model模型,定义如下 package gorm import "time" // Model b ...

  3. Solution -「洛谷 P6156」简单题

    Description Link. 求 \(\sum\limits_{i=1}^n\sum\limits_{j=1}^n(i+j)^kf(\gcd(i,j))\gcd(i,j)\). Solution ...

  4. POWERBI_1分钟学会_连续上升或下降指标监控

    一:数据源 模拟数据为三款奶茶销量的日销售数据源,日期是23.8.24-23.8.31.A产品为连续7天,日环比下降,B产品为连续3天,日环比下降,C产品为连续2天,日环比下降. 二:建立基础度量值 ...

  5. 聊聊基于Alink库的主成分分析(PCA)

    概述 主成分分析(Principal Component Analysis,PCA)是一种常用的数据降维和特征提取技术,用于将高维数据转换为低维的特征空间.其目标是通过线性变换将原始特征转化为一组新的 ...

  6. md5sum 文件一致性校验

    1. 背景 在网络传输.设备之间转存.复制大文件等时,可能会出现传输前后数据不一致的情况.这种情况在网络这种相对更不稳定的环境中,容易出现.那么校验文件的完整性,也是势在必行的. md5sum命令用于 ...

  7. Markdown 包含其他文件静态渲染工具

    1. 前言 在 GitHub 上写文档,很多时候要插入 uml,像 mermaid 这种可以直接在 GitHub/GitLab 中渲染的一般直接写个 code block 进去,但是这样造成一个问题就 ...

  8. Linux 中如何安全地抹去磁盘数据？

    哈喽大家好,我是咸鱼 离过职的小伙伴都知道,离职的时候需要上交公司电脑,但是电脑里面有许多我们的个人信息(聊天记录.浏览记录等等) 所以我们就需要先把这些信息都删除,确保无法恢复之后才上交 即有些情况 ...

  9. 深入理解 Netty FastThreadLocal

    作者:vivo 互联网服务器团队- Jiang Zhu 本文以线上诡异问题为切入点,通过对比JDK ThreadLocal和Netty FastThreadLocal实现逻辑以及优缺点,并深入解读源码 ...

  10. LCT(link cut tree) 详细图解与应用

    樱雪喵用时 3days 做了 ybtoj 的 3 道例题,真是太有效率了!!1 写死自己系列. 为了避免自己没学明白就瞎写东西误人子弟,这篇 Blog 拖到了现在. 图片基本沿用 OIwiki,原文跳 ...