本文为博主原创，未经允许不得转载：
先将异常粘贴出来：
20:37:26,909 ERROR [com.suning.fucdn.controller.ProductDataStaticsController] (default task-10) ProductDataStaticsController getManuBandChart is failed: org.springframework.beans.TypeMismatchException: Failed to convert property value of type 'null' to required type 'double' for property 'band'; nested exception is org.springframework.core.convert.ConversionFailedException: Failed to convert from type [null] to type [@javax.persistence.Column double] for value 'null'; nested exception is java.lang.IllegalArgumentException: A null value cannot be assigned to a primitive type at org.springframework.beans.AbstractNestablePropertyAccessor.convertIfNecessary(AbstractNestablePropertyAccessor.java:600) [spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.beans.AbstractNestablePropertyAccessor.convertForProperty(AbstractNestablePropertyAccessor.java:617) [spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.beans.AbstractNestablePropertyAccessor.processLocalProperty(AbstractNestablePropertyAccessor.java:464) [spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.beans.AbstractNestablePropertyAccessor.setPropertyValue(AbstractNestablePropertyAccessor.java:292) [spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.beans.AbstractNestablePropertyAccessor.setPropertyValue(AbstractNestablePropertyAccessor.java:260) [spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.jdbc.core.BeanPropertyRowMapper.mapRow(BeanPropertyRowMapper.java:297) [spring-jdbc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.jdbc.core.RowMapperResultSetExtractor.extractData(RowMapperResultSetExtractor.java:93) [spring-jdbc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.jdbc.core.RowMapperResultSetExtractor.extractData(RowMapperResultSetExtractor.java:60) [spring-jdbc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.jdbc.core.JdbcTemplate$1.doInPreparedStatement(JdbcTemplate.java:697) [spring-jdbc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:633) [spring-jdbc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:684) [spring-jdbc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:711) [spring-jdbc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:761) [spring-jdbc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate.query(NamedParameterJdbcTemplate.java:192) [spring-jdbc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate.query(NamedParameterJdbcTemplate.java:199) [spring-jdbc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at com.suning.framework.dal.client.support.executor.MappedSqlExecutor.queryForObject(MappedSqlExecutor.java:421) [snf-dal-3.1.1.jar:3.1.1] at com.suning.framework.dal.client.support.executor.MappedSqlExecutor.queryForObject(MappedSqlExecutor.java:392) [snf-dal-3.1.1.jar:3.1.1] at com.suning.framework.dal.client.support.DefaultDalClient.queryForObject(DefaultDalClient.java:202) [snf-dal-3.1.1.jar:3.1.1] at com.suning.fucdn.impl.dao.BaseDaoImpl.queryForObject(BaseDaoImpl.java:71) [fucdn-service-0.0.1.jar:] at com.suning.fucdn.impl.dao.platformdata.PlatformDataDaoImpl.getSumTotalAndBand(PlatformDataDaoImpl.java:126) [fucdn-admin-service-0.0.1.jar:] at com.suning.fucdn.impl.service.platformdata.PlatformDataServiceImpl.getSumTotalAndBand(PlatformDataServiceImpl.java:156) [fucdn-admin-service-0.0.1.jar:] at com.suning.fucdn.impl.service.platformdata.ProductStatisticsServiceImpl.getBandTop20Table(ProductStatisticsServiceImpl.java:404) [fucdn-admin-service-0.0.1.jar:] at com.suning.fucdn.controller.ProductDataStaticsController.getManuBandChart(ProductDataStaticsController.java:200) [classes:] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.8.0_181] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) [rt.jar:1.8.0_181] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) [rt.jar:1.8.0_181] at java.lang.reflect.Method.invoke(Unknown Source) [rt.jar:1.8.0_181] at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) [spring-web-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133) [spring-web-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:116) [spring-webmvc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) [spring-webmvc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) [spring-webmvc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) [spring-webmvc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963) [spring-webmvc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897) [spring-webmvc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) [spring-webmvc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872) [spring-webmvc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:707) [jboss-servlet-api_3.1_spec-1.0.0.Final.jar:1.0.0.Final] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) [spring-webmvc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) [jboss-servlet-api_3.1_spec-1.0.0.Final.jar:1.0.0.Final] at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:130) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at com.suning.ids.client.AuthenticationFilter.doFilter(AuthenticationFilter.java:112) [isso-client-3.0.5.jar:3.0.5] at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) [spring-web-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.6.RELEASE.jar:4.3.6.RELEASE] at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:85) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:61) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final] at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:56) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final] at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:45) [undertow-core-1.1.0.Final.jar:1.1.0.Final] at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:63) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:58) [undertow-core-1.1.0.Final.jar:1.1.0.Final] at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:70) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76) [undertow-core-1.1.0.Final.jar:1.1.0.Final] at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final] at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final] at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final] at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:261) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:247) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:76) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:166) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at io.undertow.server.Connectors.executeRootHandler(Connectors.java:197) [undertow-core-1.1.0.Final.jar:1.1.0.Final] at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:759) [undertow-core-1.1.0.Final.jar:1.1.0.Final] at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [rt.jar:1.8.0_181] at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [rt.jar:1.8.0_181] at java.lang.Thread.run(Unknown Source) [rt.jar:1.8.0_181] Caused by: org.springframework.core.convert.ConversionFailedException: Failed to convert from type [null] to type [@javax.persistence.Column double] for value 'null'; nested exception is java.lang.IllegalArgumentException: A null value cannot be assigned to a primitive type at org.springframework.core.convert.support.GenericConversionService.assertNotPrimitiveTargetType(GenericConversionService.java:336) [spring-core-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.core.convert.support.GenericConversionService.handleResult(GenericConversionService.java:329) [spring-core-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.core.convert.support.GenericConversionService.convert(GenericConversionService.java:195) [spring-core-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:287) [spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.beans.AbstractNestablePropertyAccessor.convertIfNecessary(AbstractNestablePropertyAccessor.java:590) [spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE] ... 74 more Caused by: java.lang.IllegalArgumentException: A null value cannot be assigned to a primitive type ... 79 more 20:37:27,815 ERROR [com.suning.fucdn.controller.ProductDataStaticsController] (default task-5) ProductDataStaticsController getManuBandChart is failed: org.springframework.beans.TypeMismatchException: Failed to convert property value of type 'null' to required type 'double' for property 'band'; nested exception is org.springframework.core.convert.ConversionFailedException: Failed to convert from type [null] to type [@javax.persistence.Column double] for value 'null'; nested exception is java.lang.IllegalArgumentException: A null value cannot be assigned to a primitive type at org.springframework.beans.AbstractNestablePropertyAccessor.convertIfNecessary(AbstractNestablePropertyAccessor.java:600) [spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.beans.AbstractNestablePropertyAccessor.convertForProperty(AbstractNestablePropertyAccessor.java:617) [spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.beans.AbstractNestablePropertyAccessor.processLocalProperty(AbstractNestablePropertyAccessor.java:464) [spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.beans.AbstractNestablePropertyAccessor.setPropertyValue(AbstractNestablePropertyAccessor.java:292) [spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.beans.AbstractNestablePropertyAccessor.setPropertyValue(AbstractNestablePropertyAccessor.java:260) [spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.jdbc.core.BeanPropertyRowMapper.mapRow(BeanPropertyRowMapper.java:297) [spring-jdbc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.jdbc.core.RowMapperResultSetExtractor.extractData(RowMapperResultSetExtractor.java:93) [spring-jdbc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.jdbc.core.RowMapperResultSetExtractor.extractData(RowMapperResultSetExtractor.java:60) [spring-jdbc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.jdbc.core.JdbcTemplate$1.doInPreparedStatement(JdbcTemplate.java:697) [spring-jdbc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:633) [spring-jdbc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:684) [spring-jdbc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:711) [spring-jdbc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:761) [spring-jdbc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate.query(NamedParameterJdbcTemplate.java:192) [spring-jdbc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate.query(NamedParameterJdbcTemplate.java:199) [spring-jdbc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at com.suning.framework.dal.client.support.executor.MappedSqlExecutor.queryForObject(MappedSqlExecutor.java:421) [snf-dal-3.1.1.jar:3.1.1] at com.suning.framework.dal.client.support.executor.MappedSqlExecutor.queryForObject(MappedSqlExecutor.java:392) [snf-dal-3.1.1.jar:3.1.1] at com.suning.framework.dal.client.support.DefaultDalClient.queryForObject(DefaultDalClient.java:202) [snf-dal-3.1.1.jar:3.1.1] at com.suning.fucdn.impl.dao.BaseDaoImpl.queryForObject(BaseDaoImpl.java:71) [fucdn-service-0.0.1.jar:] at com.suning.fucdn.impl.dao.platformdata.PlatformDataDaoImpl.getSumTotalAndBand(PlatformDataDaoImpl.java:126) [fucdn-admin-service-0.0.1.jar:] at com.suning.fucdn.impl.service.platformdata.PlatformDataServiceImpl.getSumTotalAndBand(PlatformDataServiceImpl.java:156) [fucdn-admin-service-0.0.1.jar:] at com.suning.fucdn.impl.service.platformdata.ProductStatisticsServiceImpl.getBandTop20Table(ProductStatisticsServiceImpl.java:404) [fucdn-admin-service-0.0.1.jar:] at com.suning.fucdn.controller.ProductDataStaticsController.getManuBandChart(ProductDataStaticsController.java:200) [classes:] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.8.0_181] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) [rt.jar:1.8.0_181] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) [rt.jar:1.8.0_181] at java.lang.reflect.Method.invoke(Unknown Source) [rt.jar:1.8.0_181] at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) [spring-web-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133) [spring-web-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:116) [spring-webmvc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) [spring-webmvc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) [spring-webmvc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) [spring-webmvc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963) [spring-webmvc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897) [spring-webmvc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) [spring-webmvc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872) [spring-webmvc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:707) [jboss-servlet-api_3.1_spec-1.0.0.Final.jar:1.0.0.Final] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) [spring-webmvc-4.3.6.RELEASE.jar:4.3.6.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) [jboss-servlet-api_3.1_spec-1.0.0.Final.jar:1.0.0.Final] at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:130) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at com.suning.ids.client.AuthenticationFilter.doFilter(AuthenticationFilter.java:112) [isso-client-3.0.5.jar:3.0.5] at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) [spring-web-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.6.RELEASE.jar:4.3.6.RELEASE] at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:85) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:61) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final] at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:56) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final] at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:45) [undertow-core-1.1.0.Final.jar:1.1.0.Final] at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:63) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:58) [undertow-core-1.1.0.Final.jar:1.1.0.Final] at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:70) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76) [undertow-core-1.1.0.Final.jar:1.1.0.Final] at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final] at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final] at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final] at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:261) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:247) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:76) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:166) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final] at io.undertow.server.Connectors.executeRootHandler(Connectors.java:197) [undertow-core-1.1.0.Final.jar:1.1.0.Final] at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:759) [undertow-core-1.1.0.Final.jar:1.1.0.Final] at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [rt.jar:1.8.0_181] at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [rt.jar:1.8.0_181] at java.lang.Thread.run(Unknown Source) [rt.jar:1.8.0_181] Caused by: org.springframework.core.convert.ConversionFailedException: Failed to convert from type [null] to type [@javax.persistence.Column double] for value 'null'; nested exception is java.lang.IllegalArgumentException: A null value cannot be assigned to a primitive type at org.springframework.core.convert.support.GenericConversionService.assertNotPrimitiveTargetType(GenericConversionService.java:336) [spring-core-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.core.convert.support.GenericConversionService.handleResult(GenericConversionService.java:329) [spring-core-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.core.convert.support.GenericConversionService.convert(GenericConversionService.java:195) [spring-core-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:287) [spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE] at org.springframework.beans.AbstractNestablePropertyAccessor.convertIfNecessary(AbstractNestablePropertyAccessor.java:590) [spring-beans-4.3.6.RELEASE.jar:4.3.6.RELEASE] ... 74 more Caused by: java.lang.IllegalArgumentException: A null value cannot be assigned to a primitive type ... 79 more
该异常造成的原因是数据库没有该数据，在数据接收返回接收解析的时候会报该异常，
解决办法：在get数据时进行为空数据判断，即可解决该问题
@Column(name = "band") public Double getBand() { return band == null ? Double.valueOf(FucdnNumConstant.NUM_0.getNum().doubleValue()) : band; } public void setBand(Double band) { this.band = band; }