ajax的异步操作问题
Struts Problem Report
Struts has detected an unhandled exception: 

Messages: Bad format for Timestamp '??' in column 4.
Cannot convert value 'ç?·' from column 4 to TIMESTAMP.
Hibernate operation: could not execute query; uncategorized SQLException for SQL [select elecsystem0_.seqID as seqID2_, elecsystem0_.keyword as keyword2_, elecsystem0_.ddlCode as ddlCode2_, elecsystem0_.ddlName as ddlName2_ from Elec_SystemDDL elecsystem0_ where 1=1 and elecsystem0_.keyword=? order by elecsystem0_.ddlCode asc]; SQL state [S1009]; error code [0]; Cannot convert value 'ç?·' from column 4 to TIMESTAMP.; nested exception is java.sql.SQLException: Cannot convert value 'ç?·' from column 4 to TIMESTAMP.
 
File: com/mysql/jdbc/ResultSetRow.java 
Line number: 1,310 


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Stacktraces
org.springframework.jdbc.UncategorizedSQLException: Hibernate operation: could not execute query; uncategorized SQLException for SQL [select elecsystem0_.seqID as seqID2_, elecsystem0_.keyword as keyword2_, elecsystem0_.ddlCode as ddlCode2_, elecsystem0_.ddlName as ddlName2_ from Elec_SystemDDL elecsystem0_ where 1=1 and elecsystem0_.keyword=? order by elecsystem0_.ddlCode asc]; SQL state [S1009]; error code [0]; Cannot convert value 'ç?·' from column 4 to TIMESTAMP.; nested exception is java.sql.SQLException: Cannot convert value 'ç?·' from column 4 to TIMESTAMP. 
  org.springframework.jdbc.support.SQLStateSQLExceptionTranslator.translate(SQLStateSQLExceptionTranslator.java:124)
  org.springframework.orm.hibernate3.HibernateAccessor.convertJdbcAccessException(HibernateAccessor.java:424)
  org.springframework.orm.hibernate3.HibernateAccessor.convertHibernateAccessException(HibernateAccessor.java:410)
  org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:424)
  org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:339)
  cn.evan.elec.dao.impl.CommonDaoImpl.findCollectionByConditionNoPage(CommonDaoImpl.java:93)
  cn.evan.elec.service.impl.ElecSystemDDLServiceImpl.findSystemDDLListByKeyword(ElecSystemDDLServiceImpl.java:72)
  sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
  sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  java.lang.reflect.Method.invoke(Method.java:601)
  org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:310)
  org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
  org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
  org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:106)
  org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
  org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
  $Proxy11.findSystemDDLLi