Mybatis：使用bean傳值，當傳入值為Null時，提示“無效的列類型”的解決辦法

問題描述：

在使用mybatis對數據庫執行更新操作時，parameterType為某個具體的bean，而bean中傳入的參數為null時，拋出異常如下：

org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.type.TypeException: Could not set parameters for mapping: ParameterMapping{property='pxh', mode=IN, javaType=class java.lang.Long, jdbcType=null, numericScale=null, resultMapId='null', jdbcTypeName='null', expression='null'}. Cause: org.apache.ibatis.type.TypeException: Error setting null for parameter #5 with JdbcType OTHER . Try setting a different JdbcType for this parameter or a different jdbcTypeForNull configuration property. Cause: java.sql.SQLException: 無效的列類型: 1111
    at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:76)
    at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:399)
    at com.sun.proxy.$Proxy10.insert(Unknown Source)
    at org.mybatis.spring.SqlSessionTemplate.insert(SqlSessionTemplate.java:253)
    at com.hsoft.mss.xtgl.dao.impl.GnzyDaoImpl.updateGnzy(GnzyDaoImpl.java:69)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:201)
    at com.sun.proxy.$Proxy28.updateGnzy(Unknown Source)
    at com.hsoft.mss.xtgl.service.impl.GnzyServiceImpl.updateGnzy(GnzyServiceImpl.java:73)
    at com.hsoft.mss.xtgl.controller.GnzyController.updateGnzy(GnzyController.java:316)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:222)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:775)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:705)
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:965)
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:867)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:650)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:841)
    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 com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:123)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:85)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    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.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:957)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:620)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Unknown Source)
Caused by: org.apache.ibatis.type.TypeException: Could not set parameters for mapping: ParameterMapping{property='pxh', mode=IN, javaType=class java.lang.Long, jdbcType=null, numericScale=null, resultMapId='null', jdbcTypeName='null', expression='null'}. Cause: org.apache.ibatis.type.TypeException: Error setting null for parameter #5 with JdbcType OTHER . Try setting a different JdbcType for this parameter or a different jdbcTypeForNull configuration property. Cause: java.sql.SQLException: 無效的列類型: 1111
    at org.apache.ibatis.scripting.defaults.DefaultParameterHandler.setParameters(DefaultParameterHandler.java:89)
    at org.apache.ibatis.executor.statement.PreparedStatementHandler.parameterize(PreparedStatementHandler.java:85)
    at org.apache.ibatis.executor.statement.RoutingStatementHandler.parameterize(RoutingStatementHandler.java:63)
    at org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:77)
    at org.apache.ibatis.executor.SimpleExecutor.doUpdate(SimpleExecutor.java:48)
    at org.apache.ibatis.executor.BaseExecutor.update(BaseExecutor.java:115)
    at org.apache.ibatis.executor.CachingExecutor.update(CachingExecutor.java:75)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:63)
    at com.sun.proxy.$Proxy40.update(Unknown Source)
    at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:170)
    at org.apache.ibatis.session.defaults.DefaultSqlSession.insert(DefaultSqlSession.java:157)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:386)
    ... 56 more
Caused by: org.apache.ibatis.type.TypeException: Error setting null for parameter #5 with JdbcType OTHER . Try setting a different JdbcType for this parameter or a different jdbcTypeForNull configuration property. Cause: java.sql.SQLException: 無效的列類型: 1111
    at org.apache.ibatis.type.BaseTypeHandler.setParameter(BaseTypeHandler.java:47)
    at org.apache.ibatis.scripting.defaults.DefaultParameterHandler.setParameters(DefaultParameterHandler.java:87)
    ... 75 more
Caused by: java.sql.SQLException: 無效的列類型: 1111
    at oracle.jdbc.driver.OracleStatement.getInternalType(OracleStatement.java:3900)
    at oracle.jdbc.driver.OraclePreparedStatement.setNullCritical(OraclePreparedStatement.java:4406)
    at oracle.jdbc.driver.OraclePreparedStatement.setNull(OraclePreparedStatement.java:4388)
    at oracle.jdbc.driver.OraclePreparedStatementWrapper.setNull(OraclePreparedStatementWrapper.java:1281)
    at com.alibaba.druid.filter.FilterChainImpl.preparedStatement_setNull(FilterChainImpl.java:2733)
    at com.alibaba.druid.filter.FilterAdapter.preparedStatement_setNull(FilterAdapter.java:1286)
    at com.alibaba.druid.filter.FilterChainImpl.preparedStatement_setNull(FilterChainImpl.java:2730)
    at com.alibaba.druid.proxy.jdbc.PreparedStatementProxyImpl.setNull(PreparedStatementProxyImpl.java:397)
    at com.alibaba.druid.pool.DruidPooledPreparedStatement.setNull(DruidPooledPreparedStatement.java:266)
    at org.apache.ibatis.type.BaseTypeHandler.setParameter(BaseTypeHandler.java:45)

mapper文件中代碼如下：

<update id="update" parameterType="com.hsoft.mss.xtgl.model.Bean">
        update table
        <set>
                pxh  = #{pxh},    // 當pxh傳入null時，拋出上述異常，pxh在bean中的類型為Long
                time = sysdate
        </set>
        where id = #{id}
</update>

 

解決辦法一：

經過對代碼分析，是由於未指定傳入參數pxh的類型，當mybatis接收到null時，無法將其正確的進行解析，進而導致上述異常。

將mapper中代碼修改如下：

<update id="update" parameterType="com.hsoft.mss.xtgl.model.Bean">
        update table
        <set>
                pxh  = #{pxh,jdbcType=NUMERIC}, //將pxh的類型指定為NUMERIC即可
                time = sysdate
        </set>
        where id = #{id,jdbcType=VARCHAR}
</update>

解決辦法二：

在配置文件mybatis-config.xml中加入如下代碼：

<?xml version="1.0" encoding="UTF-8" ?>  
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">  
<configuration>  
       ... 
    <settings>
        <setting name="jdbcTypeForNull" value="NULL" />
    </settings>
       ... 
</configuration>

 

這樣，即使傳入參數為null，mybatis也能夠將其轉換成正確的數據類型，並進行存儲操作。

 

附：常見的Jdbc Type 與 Java Type之間的關系

JDBC Type Java Type  
CHAR                 String  
VARCHAR              String  
LONGVARCHAR          String  
NUMERIC              java.math.BigDecimal  
DECIMAL              java.math.BigDecimal  
BIT                  boolean  
BOOLEAN              boolean  
TINYINT              byte  
SMALLINT             short  
INTEGER              int  
BIGINT               long  
REAL                 float  
FLOAT                double  
DOUBLE               double  
BINARY               byte[]  
VARBINARY            byte[]  
LONGVARBINARY        byte[]  
DATE                 java.sql.Date  
TIME                 java.sql.Time  
TIMESTAMP            java.sql.Timestamp  
CLOB                 Clob  
BLOB                 Blob  
ARRAY                Array