• java.sql.SQLException: Value '0000-00-00 00:00:00' can not be represented as java.sql.Date


    架构使用jsp+servlet+java+mysql

    mysql里time字段类型为datetime

    java实体类中该字段类型为Date

    页面中,时间字段类型为空的信息显示不出来,且报错信息如下:

    java.sql.SQLException: Value '0000-00-00 00:00:00' can not be represented as java.sql.Date
    	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1056)
    	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:957)
    	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:927)
    	at com.mysql.jdbc.ResultSet.getDateFromBytes(ResultSet.java:2304)
    	at com.mysql.jdbc.ResultSet.getDate(ResultSet.java:2052)
    	at com.mysql.jdbc.ResultSet.getDate(ResultSet.java:2015)
    	at com.mysql.jdbc.ResultSet.getDate(ResultSet.java:2069)
    	at dao.impl.DevicesDaoImpl.findAll(DevicesDaoImpl.java:26)
    	at service.impl.DevicesServiceImpl.findAll(DevicesServiceImpl.java:20)
    	at servlet.DevicesList.doGet(DevicesList.java:31)
    	at javax.servlet.http.HttpServlet.service(HttpServlet.java:624)
    	at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
    	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
    	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    	at filter.EncodingFilter.doFilter(EncodingFilter.java:29)
    

     检查代码,并没有发现什么问题,只是因为这一条数据中,这个时间字段为空而已,而数据库中此字段是可以为空的

    很显然,搜了一大堆没用的文章出来。也尝试改了很多。例如,在jsp页面<%=new SimpleDateFormat("yyyy-HH-mm").format(mobile.getMarketTime())%>

    最终报错信息改成这样了:

    java.lang.NullPointerException
    	at java.util.Calendar.setTime(Unknown Source)
    	at java.text.SimpleDateFormat.format(Unknown Source)
    	at java.text.SimpleDateFormat.format(Unknown Source)
    	at java.text.DateFormat.format(Unknown Source)
    	at org.apache.jsp.info_jsp._jspService(info_jsp.java:200)
    	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    	at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
    	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:439)
    	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
    	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
    	at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
    	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
    	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:747)
    	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:485)
    	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:410)
    	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:337)
    	at servlet.DevicesList.doGet(DevicesList.java:33)
    

     不放弃,继续找

    http://blog.csdn.net/dczjzz/article/details/52446901 感谢作者,帮忙解决了问题,另外他出淤泥而不染,肯定是自己搞定的

    解决了!

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  • 原文地址:https://www.cnblogs.com/sincoolvip/p/7872471.html
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