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如何使用MyBatis和Spring集成将unicode插入Oracle NVARCHAR

[英]How to insert unicode to Oracle NVARCHAR using MyBatis with Spring integration

 原文  2012-12-04 07:59:42  8   2    java/ spring/ jdbc/ ibatis/ mybatis

问题描述

    INSERT INTO rbp_users
       (user_id, user_name, passwd, bank_id, descr, stat, p_exp, user_type_id, email_address)
    VALUES
       (rbp_userid_seq.NEXTVAL ,
        'any_user_name',
        'some_encrypted_password',
        1,
        N'əəııööğğşşççüü', --unicode string
        'E',
        SYSDATE,
        2,
        NULL);

Above insert into Oracle table with NVARCHAR field "descr" works fine via PL/SQL Developer. 上面插入带有NVARCHAR字段“ descr”的Oracle表时，可以通过PL / SQL Developer正常工作。 But I can't write "N" before unicode field in MyBatis DAO Mapper XML: 但是我无法在MyBatis DAO Mapper XML的unicode字段之前写“ N”： 

<insert id="addUser" parameterType="User" flushCache="true">
    INSERT INTO rbp_users
       (user_id, user_name, passwd, bank_id, descr, stat, p_exp, user_type_id, email_address)
    VALUES
       (rbp_userid_seq.NEXTVAL ,
        #{userName,            javaType=String,     jdbcType=VARCHAR},
        pswcode(#{password,    javaType=String,     jdbcType=VARCHAR}),
        #{bankId,              javaType=Integer,    jdbcType=NUMERIC},
        N#{description,         javaType=String,     jdbcType=NVARCHAR},
        #{userStatus,          javaType=String,     jdbcType=VARCHAR},
        #{passwordExpireDate,  javaType=Date,       jdbcType=DATE},
        #{userTypeId,          javaType=Integer,    jdbcType=NUMERIC},
        #{emailAddress,        javaType=String,     jdbcType=VARCHAR})

    <selectKey resultType="java.lang.Integer" keyProperty="userId">
        SELECT rbp_userid_seq.currval from dual
    </selectKey>
</insert>

This raises and error: 这引发和错误： 

org.springframework.jdbc.InvalidResultSetAccessException: Error setting null for parameter #8 with JdbcType VARCHAR . Try setting a different JdbcType for this parameter or a different jdbcTypeForNull configuration property. Cause: java.sql.SQLException: Invalid column index
; invalid ResultSet access for SQL []; nested exception is java.sql.SQLException: Invalid column index
    at org.springframework.jdbc.support.SQLErrorCodeSQLExceptionTranslator.doTranslate(SQLErrorCodeSQLExceptionTranslator.java:237)
    at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:72)
    at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:71)
    at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:365)
    at $Proxy20.insert(Unknown Source)
    at org.mybatis.spring.SqlSessionTemplate.insert(SqlSessionTemplate.java:237)
    at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:79)
    at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:40)
    at $Proxy37.addUser(Unknown Source)
    at com.azercell.paymentgateway.service.UserServiceImpl.addUser(UserServiceImpl.java:156)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:319)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
    at org.springframework.aop.aspectj.AspectJAfterAdvice.invoke(AspectJAfterAdvice.java:42)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:90)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
    at $Proxy38.addUser(Unknown Source)
    at com.azercell.paymentgateway.service.UserServiceImplTest.testAddUser(UserServiceImplTest.java:101)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
    at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
    at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:83)
    at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:231)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:48)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:242)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:58)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:240)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:48)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:233)
    at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
    at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:303)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:174)
    at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
    at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:76)
    at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:195)
    at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:63)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
Caused by: java.sql.SQLException: Invalid column index
    at oracle.jdbc.driver.OraclePreparedStatement.setNullCritical(OraclePreparedStatement.java:4554)
    at oracle.jdbc.driver.OraclePreparedStatement.setNull(OraclePreparedStatement.java:4541)
    at oracle.jdbc.driver.OraclePreparedStatementWrapper.setNull(OraclePreparedStatementWrapper.java:1283)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport$StatementProxy.invoke(AbstractQueryReport.java:235)
    at $Proxy83.setNull(Unknown Source)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at org.apache.ibatis.logging.jdbc.PreparedStatementLogger.invoke(PreparedStatementLogger.java:66)
    at $Proxy84.setNull(Unknown Source)
    at org.apache.ibatis.type.BaseTypeHandler.setParameter(BaseTypeHandler.java:39)
    at org.apache.ibatis.executor.parameter.DefaultParameterHandler.setParameters(DefaultParameterHandler.java:91)
    at org.apache.ibatis.executor.statement.PreparedStatementHandler.parameterize(PreparedStatementHandler.java:77)
    at org.apache.ibatis.executor.statement.RoutingStatementHandler.parameterize(RoutingStatementHandler.java:58)
    at org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:71)
    at org.apache.ibatis.executor.SimpleExecutor.doUpdate(SimpleExecutor.java:44)
    at org.apache.ibatis.executor.BaseExecutor.update(BaseExecutor.java:108)
    at org.apache.ibatis.executor.CachingExecutor.update(CachingExecutor.java:75)
    at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:145)
    at org.apache.ibatis.session.defaults.DefaultSqlSession.insert(DefaultSqlSession.java:134)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:355)
    ... 51 more

If removing "N" from "N#{description, javaType=String, jdbcType=NVARCHAR}," no exception raises, but inserted string becomes corrupted. 如果从“ N＃{description，javaType = String，jdbcType = NVARCHAR}”中删除“ N”，则不会引发异常，但是插入的字符串会损坏。

2 个解决方案

解决方案1
 1 已采纳  2012-12-05 12:25:15

I can fix issue after executing Tomcat with parameters below: 使用以下参数执行Tomcat后，我可以解决问题： 

-Doracle.jdbc.defaultNChar=true
-Doracle.jdbc.defaultNChar=true

Source: Inserting national characters into an oracle NCHAR or NVARCHAR column does not work 来源： 将国家字符插入到Oracle NCHAR或NVARCHAR列中不起作用

解决方案2
 0  2012-12-04 08:47:11

I dont think you will have to mention "N" before unicode field in the XML at all, as you are metioning the jdbcType in it. 我认为您根本不需要在XML中的unicode字段之前提到“ N”，因为您在其中引用了jdbcType。

In some environments, the system's default encoding does not play well with the unicode encoding favored by XML files. 在某些环境中，系统的默认编码与XML文件所偏爱的unicode编码不能很好地配合使用。 If you encounter encoding issues when parsing iBATIS XML files with a Reader as input, you can change the default encoding to match the encoding of the XML files. 如果使用Reader作为输入来解析iBATIS XML文件时遇到编码问题，则可以更改默认编码以匹配XML文件的编码。 For example: 例如： 

 String resource = “properties/sqlMap-config.xml”;
 Resources.setCharset(Charset.forName('UTF-8”)); // change the default encoding
 Reader reader = Resources.getResourceAsReader(resource);
 SqlMapClient sqlMap = SqlMapClientBuilder.buildSqlMap(reader);

The “ setCharset ” method will change the encoding used for all future calls to “ getResourceAsReader ”. “ setCharset ”方法会将用于将来所有调用的编码更改为“ getResourceAsReader ”。

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