mybatis參數格式化異常:NumberFormatException: For input string:"xx"

使用mybatis註解開發的時候，總會遇到不少問題，可是mybatis的註解並非那麼的美好，一些問題或者錯誤根本不能給出準確的定位，有時候，甚至會給出Unknow Source的錯誤，獲取就是一個關閉標籤沒有關上。此類問題，在xml配置中，mybatis作的比較好，因此，官方也不是很放心其註解，建議使用xml。

1. 錯誤日誌

[16/08/16 02:15:40:040 CST] http-nio-8080-exec-4 ERROR filter.ExceptionFilter:  [DUBBO] Got unchecked and undeclared exception which called by 127.0.0.1. service: cn.test.web.service.ShareService, method: getShareChannelStInfoList, exception: org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: 
### Error querying database.  Cause: java.lang.NumberFormatException: For input string: "2016-08-11"
### Cause: java.lang.NumberFormatException: For input string: "2016-08-11", dubbo version: 2.8.4, current host: 127.0.0.1
org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: 
### Error querying database.  Cause: java.lang.NumberFormatException: For input string: "2016-08-11"
### Cause: java.lang.NumberFormatException: For input string: "2016-08-11"
    at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:76)
    at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:399)
    at com.sun.proxy.$Proxy32.selectList(Unknown Source)
    at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:205)
    at org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:122)
    at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:64)
    at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:53)
    at com.sun.proxy.$Proxy57.getShareChannelStInfo(Unknown Source)
    at cn.test.web.repository.ShareStInfoRepo.getShareChannelList(ShareStInfoRepo.java:37)
    at cn.test.web.impl.ShareServiceImpl.getShareChannelStInfoList(ShareServiceImpl.java:72)
    at com.alibaba.dubbo.common.bytecode.Wrapper19.invokeMethod(Wrapper19.java)
    at com.alibaba.dubbo.rpc.proxy.javassist.JavassistProxyFactory$1.doInvoke(JavassistProxyFactory.java:46)
    at com.alibaba.dubbo.rpc.proxy.AbstractProxyInvoker.invoke(AbstractProxyInvoker.java:72)
    at com.alibaba.dubbo.rpc.protocol.InvokerWrapper.invoke(InvokerWrapper.java:53)
    at com.alibaba.dubbo.rpc.filter.ExceptionFilter.invoke(ExceptionFilter.java:64)
    at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91)
    at com.alibaba.dubbo.monitor.support.MonitorFilter.invoke(MonitorFilter.java:75)
    at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91)
    at com.alibaba.dubbo.rpc.filter.TimeoutFilter.invoke(TimeoutFilter.java:42)
    at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91)
    at com.alibaba.dubbo.rpc.protocol.dubbo.filter.TraceFilter.invoke(TraceFilter.java:78)
    at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91)
    at com.alibaba.dubbo.rpc.filter.ContextFilter.invoke(ContextFilter.java:70)
    at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91)
    at com.alibaba.dubbo.rpc.filter.GenericFilter.invoke(GenericFilter.java:132)
    at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91)
    at com.alibaba.dubbo.rpc.filter.ClassLoaderFilter.invoke(ClassLoaderFilter.java:38)
    at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91)
    at com.alibaba.dubbo.rpc.filter.EchoFilter.invoke(EchoFilter.java:38)
    at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91)
    at com.alibaba.dubbo.rpc.proxy.InvokerInvocationHandler.invoke(InvokerInvocationHandler.java:52)
    at com.alibaba.dubbo.common.bytecode.proxy9.getShareChannelStInfoList(proxy9.java)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:137)
    at org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:288)
    at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:242)
    at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:229)
    at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:356)
    at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:179)
    at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:220)
    at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:56)
    at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:51)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    at com.alibaba.dubbo.rpc.protocol.rest.DubboHttpServer$RestHandler.handle(DubboHttpServer.java:86)
    at com.alibaba.dubbo.remoting.http.servlet.DispatcherServlet.service(DispatcherServlet.java:64)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
    at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:123)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
    at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:528)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1099)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:672)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1520)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1476)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:745)

2.錯誤代碼

這段代碼，就是mybatis的動態查詢，就是組裝sql語句。可是，這裏必須注意一個問題，那就是startd和endd,這兩個變量是ShareChannelStInfo中的私有變量，是String類型的。
錯誤的引發，是startd != 0和endd != 0引發的，緣由給的是字符串，卻拿一個數字比較，mybatis會作一些轉化，結果在數字格式化時發生異常。

@Select("<script>" +
            " select * from `test`.`share_channel_st_info`" +
            " where 1 = 1" +
            " <choose>" +
            " <when test=\"channel != null\">" +
            " and channel=#{channel}" +
            " </when>" +
            " <otherwise>" +
            " and channel=0" +
            " </otherwise>" +
            " </choose>" +
            " <if test=\"startd != null and startd != 0\">" +
            " and time &gt;=#{startd}</if>" +
            " <if test=\"endd != null and endd != 0\">" +
            " and time &lt;=#{endd}</if>" +
            " <choose>" +
            " <when test=\"orderby != null and orderby != ''\">" +
            " order by ${orderby}" +
            " </when>" +
            " <otherwise>" +
            " order by time desc" +
            " </otherwise>" +
            " </choose>" +
            " limit #{offset}, #{limit}" +
            "</script>")
    List<ShareChannelStInfo> getShareChannelStInfo(ShareChannelStInfo info);

3. 解決錯誤

加單引號是沒法解決的，好比：startd != '0'，此時，mybatis認爲拿一個字符串（String）和一個字符(char)比較，也會報錯。
所以，有幾種方法能夠解決此問題：

一是：轉成字符串：'0'.toString()

@Select("<script>" +
        " select * from `test `.`share_channel_st_info`" +
        " where 1 = 1" +
        " <choose>" +
        " <when test=\"channel != null\">" +
        " and channel=#{channel}" +
        " </when>" +
        " <otherwise>" +
        " and channel=0" +
        " </otherwise>" +
        " </choose>" +
        " <if test=\"startd != null and startd != '0'.toString()\">" +
        " and time &gt;=#{startd}</if>" +
        " <if test=\"endd != null and endd != '0'.toString()\">" +
        " and time &lt;=#{endd}</if>" +
        " <choose>" +
        " <when test=\"orderby != null and orderby != ''\">" +
        " order by ${orderby}" +
        " </when>" +
        " <otherwise>" +
        " order by time desc" +
        " </otherwise>" +
        " </choose>" +
        " limit #{offset}, #{limit}" +
        "</script>")
List<ShareChannelStInfo> getShareChannelStInfo(ShareChannelStInfo info);

二是：加轉義實體字符串引號"

<if test=\"startd != null and startd != &quot;0&quot;\">

三是：外部單雙引號交換：

<if test='startd != null and startd != \"0\"'>

注意：在xml配置中，使用第三種方式，不須要添加反斜槓("\"),<if test='startd != null and startd != "0"'>