一、背景

最近在整合seata的过程中，发现如果业务表中存在 datetime 的数据类型，那么在分布式事务中，修改这个字段的值时，会出现如下错误。此处提供2种解决方案。

com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Type id handling not implemented for type java.lang.Object (by serializer of type com.fasterxml.jackson.databind.ser.impl.UnsupportedTypeSerializer) (through reference chain: io.seata.rm.datasource.undo.BranchUndoLog["sqlUndoLogs"]->java.util.ArrayList[0]->io.seata.rm.datasource.undo.SQLUndoLog["beforeImage"]->io.seata.rm.datasource.sql.struct.TableRecords["rows"]->java.util.ArrayList[0]->io.seata.rm.datasource.sql.struct.Row["fields"]->java.util.ArrayList[2]->io.seata.rm.datasource.sql.struct.Field["value"])

	at com.fasterxml.jackson.databind.exc.InvalidDefinitionException.from(InvalidDefinitionException.java:77) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.SerializerProvider.reportBadDefinition(SerializerProvider.java:1276) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.DatabindContext.reportBadDefinition(DatabindContext.java:400) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.JsonSerializer.serializeWithType(JsonSerializer.java:160) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:730) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:770) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeWithType(BeanSerializerBase.java:655) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serializeContents(CollectionSerializer.java:147) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serializeContents(CollectionSerializer.java:25) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ser.std.AsArraySerializerBase.serializeWithType(AsArraySerializerBase.java:267) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:730) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:770) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeWithType(BeanSerializerBase.java:655) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serializeContents(CollectionSerializer.java:147) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serializeContents(CollectionSerializer.java:25) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ser.std.AsArraySerializerBase.serializeWithType(AsArraySerializerBase.java:267) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:730) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:770) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeWithType(BeanSerializerBase.java:655) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:730) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:770) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeWithType(BeanSerializerBase.java:655) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serializeContents(CollectionSerializer.java:147) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serializeContents(CollectionSerializer.java:25) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ser.std.AsArraySerializerBase.serializeWithType(AsArraySerializerBase.java:267) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:730) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:770) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeWithType(BeanSerializerBase.java:655) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ser.impl.TypeWrappedSerializer.serialize(TypeWrappedSerializer.java:32) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ser.DefaultSerializerProvider._serialize(DefaultSerializerProvider.java:480) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ser.DefaultSerializerProvider.serializeValue(DefaultSerializerProvider.java:319) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ObjectMapper._writeValueAndClose(ObjectMapper.java:4487) ~[jackson-databind-2.12.4.jar:2.12.4]

	at com.fasterxml.jackson.databind.ObjectMapper.writeValueAsBytes(ObjectMapper.java:3765) ~[jackson-databind-2.12.4.jar:2.12.4]

	at io.seata.rm.datasource.undo.parser.JacksonUndoLogParser.encode(JacksonUndoLogParser.java:152) ~[seata-all-1.4.2.jar:1.4.2]

	at io.seata.rm.datasource.undo.AbstractUndoLogManager.flushUndoLogs(AbstractUndoLogManager.java:230) ~[seata-all-1.4.2.jar:1.4.2]

	at io.seata.rm.datasource.ConnectionProxy.processGlobalTransactionCommit(ConnectionProxy.java:255) ~[seata-all-1.4.2.jar:1.4.2]

	at io.seata.rm.datasource.ConnectionProxy.doCommit(ConnectionProxy.java:230) ~[seata-all-1.4.2.jar:1.4.2]

	at io.seata.rm.datasource.ConnectionProxy.lambda$commit$0(ConnectionProxy.java:188) ~[seata-all-1.4.2.jar:1.4.2]

	at io.seata.rm.datasource.ConnectionProxy$LockRetryPolicy.execute(ConnectionProxy.java:333) ~[seata-all-1.4.2.jar:1.4.2]

	at io.seata.rm.datasource.ConnectionProxy.commit(ConnectionProxy.java:187) ~[seata-all-1.4.2.jar:1.4.2]

	at org.springframework.jdbc.datasource.DataSourceTransactionManager.doCommit(DataSourceTransactionManager.java:333) ~[spring-jdbc-5.3.9.jar:5.3.9]

	at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:743) ~[spring-tx-5.3.9.jar:5.3.9]

	at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:711) ~[spring-tx-5.3.9.jar:5.3.9]

	at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:654) ~[spring-tx-5.3.9.jar:5.3.9]

	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:407) ~[spring-tx-5.3.9.jar:5.3.9]

	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119) ~[spring-tx-5.3.9.jar:5.3.9]

	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.9.jar:5.3.9]

	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:750) ~[spring-aop-5.3.9.jar:5.3.9]

	at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:692) ~[spring-aop-5.3.9.jar:5.3.9]

	at com.huan.seata.service.impl.AccountServiceImpl$$EnhancerBySpringCGLIB$$20806094.debit(<generated>) ~[classes/:na]

	at com.huan.seata.controller.AccountController.debit(AccountController.java:28) ~[classes/:na]

	at com.huan.seata.controller.AccountController$$FastClassBySpringCGLIB$$7c176670.invoke(<generated>) ~[classes/:na]

	at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218) ~[spring-core-5.3.9.jar:5.3.9]

	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:779) ~[spring-aop-5.3.9.jar:5.3.9]

	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) ~[spring-aop-5.3.9.jar:5.3.9]

	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:750) ~[spring-aop-5.3.9.jar:5.3.9]

	at io.seata.spring.annotation.GlobalTransactionalInterceptor$2.execute(GlobalTransactionalInterceptor.java:184) ~[seata-all-1.4.2.jar:1.4.2]

	at io.seata.tm.api.TransactionalTemplate.execute(TransactionalTemplate.java:127) ~[seata-all-1.4.2.jar:1.4.2]

	at io.seata.spring.annotation.GlobalTransactionalInterceptor.handleGlobalTransaction(GlobalTransactionalInterceptor.java:181) ~[seata-all-1.4.2.jar:1.4.2]

	at io.seata.spring.annotation.GlobalTransactionalInterceptor.invoke(GlobalTransactionalInterceptor.java:150) ~[seata-all-1.4.2.jar:1.4.2]

	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.9.jar:5.3.9]

	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:750) ~[spring-aop-5.3.9.jar:5.3.9]

	at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:692) ~[spring-aop-5.3.9.jar:5.3.9]

	at com.huan.seata.controller.AccountController$$EnhancerBySpringCGLIB$$b98db7f4.debit(<generated>) ~[classes/:na]

	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_192]

	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_192]

	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_192]

	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_192]

	at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:197) ~[spring-web-5.3.9.jar:5.3.9]

	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:141) ~[spring-web-5.3.9.jar:5.3.9]

	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106) ~[spring-webmvc-5.3.9.jar:5.3.9]

	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895) ~[spring-webmvc-5.3.9.jar:5.3.9]

	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) ~[spring-webmvc-5.3.9.jar:5.3.9]

	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.3.9.jar:5.3.9]

	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1064) ~[spring-webmvc-5.3.9.jar:5.3.9]

	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963) ~[spring-webmvc-5.3.9.jar:5.3.9]

	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.9.jar:5.3.9]

	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.3.9.jar:5.3.9]

	at javax.servlet.http.HttpServlet.service(HttpServlet.java:655) ~[tomcat-embed-core-9.0.52.jar:4.0.FR]

	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.9.jar:5.3.9]

	at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) ~[tomcat-embed-core-9.0.52.jar:4.0.FR]

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) ~[tomcat-embed-core-9.0.52.jar:9.0.52]

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.52.jar:9.0.52]

	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.52.jar:9.0.52]

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.52.jar:9.0.52]

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.52.jar:9.0.52]

	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.9.jar:5.3.9]

	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.9.jar:5.3.9]

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.52.jar:9.0.52]

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.52.jar:9.0.52]

	at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.9.jar:5.3.9]

	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.9.jar:5.3.9]

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.52.jar:9.0.52]

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.52.jar:9.0.52]

	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.9.jar:5.3.9]

	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.9.jar:5.3.9]

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.52.jar:9.0.52]

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.52.jar:9.0.52]

	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:197) ~[tomcat-embed-core-9.0.52.jar:9.0.52]

	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) [tomcat-embed-core-9.0.52.jar:9.0.52]

	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) [tomcat-embed-core-9.0.52.jar:9.0.52]

	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135) [tomcat-embed-core-9.0.52.jar:9.0.52]

	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.52.jar:9.0.52]

	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) [tomcat-embed-core-9.0.52.jar:9.0.52]

	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357) [tomcat-embed-core-9.0.52.jar:9.0.52]

	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:382) [tomcat-embed-core-9.0.52.jar:9.0.52]

	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-embed-core-9.0.52.jar:9.0.52]

	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:893) [tomcat-embed-core-9.0.52.jar:9.0.52]

	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1726) [tomcat-embed-core-9.0.52.jar:9.0.52]

	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.52.jar:9.0.52]

	at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) [tomcat-embed-core-9.0.52.jar:9.0.52]

	at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) [tomcat-embed-core-9.0.52.jar:9.0.52]

	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.52.jar:9.0.52]

	at java.lang.Thread.run(Thread.java:748) [na:1.8.0_192]

此处使用的Seata的版本是1.4.2

二、解决方案

1、数据库中不使用 datetime 数据类型

经过测试，发现 datetime 类型会出现问题，那么如果我们不使用这个类型，使用timestamp类型代替，发现就可以解决问题。

2、修改undo_log默认的序列化方式

我们知道，undo_log 默认的序列化方式 jackson，在seata中使用jackson序列化方式会有问题，那么我们修改 kryo 序列化方式就可以解决这个问题。

1、配置文件中引入 kryo

<dependency>

    <groupId>com.esotericsoftware</groupId>

    <artifactId>kryo</artifactId>

    <version>4.0.2</version>

</dependency>

<dependency>

    <groupId>de.javakaffee</groupId>

    <artifactId>kryo-serializers</artifactId>

    <version>0.42</version>

</dependency>

2、seata server 配置中修改undolog的序列化方式

注意：

经过测试修改了在seata的配置中心中修改了client.undo.logSerialization属性的值，业务程序需要重启，否则获取不到新的值。

到此就解决了undo_log中的日期序列化问题.

三、小知识点

1、undo_log的序列化方式是何时初始化的

package io.seata.rm.datasource.undo;

import io.seata.config.ConfigurationFactory;

import io.seata.core.constants.ConfigurationKeys;

import static io.seata.common.DefaultValues.DEFAULT_TRANSACTION_UNDO_LOG_SERIALIZATION;

public interface UndoLogConstants {

    String SERIALIZER_KEY = "serializer";

    # 此处从配置中心中获取undo_log的序列化方式

    String DEFAULT_SERIALIZER = ConfigurationFactory.getInstance()

        .getConfig(ConfigurationKeys.TRANSACTION_UNDO_LOG_SERIALIZATION, DEFAULT_TRANSACTION_UNDO_LOG_SERIALIZATION);

    String COMPRESSOR_TYPE_KEY = "compressorType";

}

2、何时序列化undo_log

四、完整代码

1、seata server 配置

service.vgroupMapping.tx_account_service_group=default

store.mode=db

store.db.datasource=druid

store.db.dbType=mysql

store.db.driverClassName=com.mysql.jdbc.Driver

store.db.url=jdbc:mysql://10.1.206.128:3306/seata?useUnicode=true&rewriteBatchedStatements=true

store.db.user=root

store.db.password=root

store.db.minConn=5

store.db.maxConn=30

store.db.globalTable=global_table

store.db.branchTable=branch_table

store.db.distributedLockTable=distributed_lock

store.db.queryLimit=100

store.db.lockTable=lock_table

store.db.maxWait=5000

# 注意这个属性的值

client.undo.logSerialization=kryo

2、建表语句

注意： account_date 表中的 update_time是 datetime类型，数据修改时，会修改该字段的值。

create table account_date(

    id int unsigned auto_increment primary key comment '主键',

    name varchar(20) comment '用户名',

    balance bigint comment '账户余额,单位分',

    create_time datetime comment '创建时间',

    update_time datetime comment  '修改时间'

) engine=InnoDB comment '账户表';

insert into account_date(id,name,balance,create_time,update_time) values (1,'张三',100000,now(),now());

CREATE TABLE IF NOT EXISTS `undo_log`

(

    `branch_id`     BIGINT       NOT NULL COMMENT 'branch transaction id',

    `xid`           VARCHAR(128) NOT NULL COMMENT 'global transaction id',

    `context`       VARCHAR(128) NOT NULL COMMENT 'undo_log context,such as serialization',

    `rollback_info` LONGBLOB     NOT NULL COMMENT 'rollback info',

    `log_status`    INT(11)      NOT NULL COMMENT '0:normal status,1:defense status',

    `log_created`   DATETIME(6)  NOT NULL COMMENT 'create datetime',

    `log_modified`  DATETIME(6)  NOT NULL COMMENT 'modify datetime',

    UNIQUE KEY `ux_undo_log` (`xid`, `branch_id`)

) ENGINE = InnoDB COMMENT ='AT transaction mode undo table';

3、java 代码

https://gitee.com/huan1993/spring-cloud-parent/tree/master/seata/seata-springboot-kryo/account-services-50030

seata序列化日期类型出错的更多相关文章

使用JavaScriptSerializer进行序列化日期类型应该注意的问题
原文:使用JavaScriptSerializer进行序列化日期类型应该注意的问题 JavaScriptSerializer在序列化DateTime时,是用刻度来表示的,具体在Json体现为:\/Da ...
Jackson序列化日期类型的属性
@JsonProperty("BankSettlementDate") @JsonFormat(shape = JsonFormat.Shape.STRING, pattern = ...
接收的参数为日期类型、controller控制层进行数据保存、进行重定向跳转
目录 1.接收的参数为日期类型 2.controller控制层进行数据保存 3.controller层如何进行重定向跳转(因为默认是请求转发) 4.静态资源的映射 1.接收的参数为日期类型 WEB-I ...
java mysql 日期类型
mysql(版本:5.1.50)的时间日期类型如下: datetime 8bytes xxxx-xx-xx xx:xx:xx 1000-01-01 00:00:00到9999-12-31 23:59: ...
flex4 日期类型字符串转日期类型（string转Date）（转）
mysql数据库中存储的日期类型通过PHP返回到flex端为字符串类型,这样在flex中进行处理时就必须要将字符串转化为Date类型.如果仅仅是 "年/月/日" 的组合,而没有涉及 ...
SpringMVC提交数据遭遇基础类型和日期类型报400错误解决方法
使用SpringMVC开发的时候,页面如果有日期格式的数据,后台接受也是java.util.Date,则报告400错误 .下面是解决方案的演示示例: 这个是实体类,里面createDate就是java ...
SSM-SpringMVC-27：SpringMVC类型转换之日期类型初步
------------吾亦无他,唯手熟尔,谦卑若愚,好学若饥------------- 本案例是上面的异常和日期类型转换结合的一个小小的Demo 案例开始 1.自定义处理器和处理方法: packag ...
新版POI如何获取日期类型的cell的值
使用POI读取Excel值的同学,一定为日期类型抓狂过! POI对单元格日期处理很弱,没有针对的类型,日期类型取出来的也是一个double值,所以同样作为数值类型.即使使用cell.setCellTy ...
java和mysql之间的时间日期类型传递
摘自:http://blog.csdn.net/weinianjie1/article/details/6310770 MySQL(版本:5.1.50)的时间日期类型如下: datetime 8byt ...

随机推荐

使用shell脚本实现everthing的功能
我们知道,在 Windows 下,有一款非常实用的神器,叫作 Everything ,它可以在极短的时间里,搜索出来你所想要的文件/目录,如下图示: Linux 下也有一些类似于 everything ...
c# 递归树形菜单
首先创建模型类Menus public class Menus { //菜单Id public int Id { get; set; } //菜单名 public string MenuName { ...
dotnet 读 WPF 源代码笔记渲染收集是如何触发
在 WPF 里面,渲染可以从架构上划分为两层.上层是 WPF 框架的 OnRender 之类的函数,作用是收集应用程序渲染的命令.上层将收集到的应用程序绘制渲染的命令传给下层,下层是 WPF 的 GF ...
ecshop 首页调用指定分类下的销售排行
/*首页调用指定分类下的销售排行*/ function get_cats_top10($cat = '') { $sql = 'SELECT cat_id, cat_name ' . 'FROM ' ...
Shell系列（5）- 输出输入重定向及wc命令
输出重定向: 在Linux当中,0代表输入:1代表正确输出:2代表错误输出类型符号作用正确输出重定向命令 > 文件以覆盖得方式,把命令得正确输出,输出到指定文件或设备当中命令 &g ...
启动Jenkins后无法访问，如何排错
做IT工作,使用各种工具的时候,遇到错误都是一堆英文,对于英语不好的人,看到报错可能就会心烦,我刚开始就是这种状态.后来,遇到问题,首先复制报错信息到百度上搜索,没有人请教的时候,你不能坐等问题自己解 ...
hibernate 初学
1. hibernate的基本操作执行流程: 执行流程细节:基本的配置文件可以与mybatis进行对比着记 hibernate 的主键生成策略 ...
django 安装redis及session使用redis存储
环境:centos 7.4 第一:安装redis 下载redis并安装: wget http://download.redis.io/releases/redis-5.0.5.tar.gz yum - ...
由浅入深了解cookie
什么是 Cookie "cookie 是存储于访问者的计算机中的变量.每当同一台计算机通过浏览器请求某个页面时,就会发送这个 cookie.你可以使用 JavaScript 来创建和取回 c ...
『GoLang』反射
方法和类型的反射反射是应用程序检查其所拥有的结构,尤其是类型的一种能.每种语言的反射模型都不同,并且有些语言根本不支持反射.Go语言实现了反射,反射机制就是在运行时动态调用对象的方法和属性,即可从运 ...

seata序列化日期类型出错