2014-01-14 119 views
0

我一直在試圖從mybatis2轉換爲mybatis3,它給我提出了各種各樣的問題。從stacktrace即時獲得Error Parsing Mapper XMLsqlMapConfig.xml我認爲這意味着有什麼問題,但我看不到它。我將不勝感激任何幫助。解析Mapper XML時出錯。原因:java.lang.NullPointerException

sqlMapConfig.xml

<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"> 

<configuration> 
    <settings> 
     <setting name="cacheModelsEnabled" value="true" /> 
     <setting name="enhancementEnabled" value="true"/> 
     <setting name="lazyLoadingEnabled" value="true"/> 
     <setting name="maxRequests" value="128"/> 
     <setting name="maxSessions" value="10"/> 
     <setting name="maxTransactions" value="5"/> 
     <setting name="defaultStatementTimeout" value="0"/> 
     <setting name="statementCachingEnabled" value="true"/> 
     <setting name="classInfoCacheEnabled" value="true"/> 
    </settings> 

    <mappers> 
     <mapper resource="com/fidelity/cmplnr/datasource/search_sql.xml"/> 
    </mappers> 


</configuration> 

的beans.xml

<?xml version="1.0" encoding="UTF-8"?> 
<beans xmlns="http://www.springframework.org/schema/beans" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" 
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
          http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 
          http://www.springframework.org/schema/context 
          http://www.springframework.org/schema/context/spring-context-3.0.xsd"> 
    <context:annotation-config /> 

    <bean id="propertyConfigurer" 
     class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> 
     <property name="locations"> 
      <list> 
       <value>classpath:jdbc.properties</value> 
      </list> 
     </property> 
    </bean> 

    <bean id="dataSource" 
     class="org.springframework.jdbc.datasource.DriverManagerDataSource"> 
     <property name="url" value="${jdbc.url}" /> 
     <property name="driverClassName" value="${jdbc.driver}" /> 
     <property name="username" value="${jdbc.username}" /> 
     <property name="password" value="${jdbc.password}" /> 
    </bean> 

    <bean id="sqlMapClient" class="org.mybatis.spring.SqlSessionFactoryBean"> 
     <property name="mapperLocations" value="classpath:sqlMapConfig.xml" /> 
     <property name="dataSource" ref="dataSource" /> 
    </bean> 

    <bean id="transactionManager" 
     class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> 
     <property name="dataSource"> 
      <ref bean="dataSource" /> 
     </property> 
    </bean> 


    <bean id="ServiceImpl" class="com.fidelity.cmplnr.integration.ServiceImpl"> 
     <property name="sqlMapClient" ref="sqlMapClient" /> 
    </bean> 

    <bean id="AuthenticationServiceImpl" class="com.fidelity.cmplnr.core.AuthenticationServiceImpl"> 
     <property name="sqlMapClient" ref="sqlMapClient" /> 
    </bean> 


</beans> 

search_sql.xml

<?xml version="1.0" encoding="UTF-8"?> 
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> 

<mapper namespace="searchService"> 

    <resultMap id="getEmpScrCombinedMap" type="com.fidelity.cmplnr.core.EMP_SCR"> 
     <result property="name" column="PERSON_FULL_NAME" /> 
     <result property="Payroll_ID" column="ASSIGNMENT_NUMBER" /> 
     <result property="corp_id" column="CORP_ID" /> 
     <result property="Manager" column="SUPERVISOR_NAME" /> 
     <result property="cost_center" column="SCOPING_6" /> 
    </resultMap> 
    <select id="getEmpScrCombined" resultMap="getEmpScrCombinedMap" parameterType="java.util.Map"> 
     SELECT person_full_name, assignment_number, corp_id, supervisor_name, scoping_6 

     FROM $table_name$ 

     WHERE plan_id = $plan_id$ 

     <if test= "$table_name$ = SSO_CMPLNR_COMBINED"> 

      <dynamic prepend="AND"> 
       <isNotEqual prepend="AND" property="emp_lname" compareValue="0"> 

        LOWER(last_name) like '$emp_lname$&#37;' 

       </isNotEqual> 

       <isNotEqual prepend="AND" property="emp_fname" compareValue="0"> 

        LOWER(first_name) like '$emp_fname$&#37;' 

       </isNotEqual> 

       <isNotEqual prepend="AND" property="payId" compareValue="0"> 

        LOWER(assignment_number) like '$payId$&#37;' 

       </isNotEqual> 

       <isNotEqual prepend="AND" property="corp_id" compareValue="0"> 

        LOWER(corp_id) like '$corp_id$&#37;' 

       </isNotEqual> 

       <isNotEqual prepend="AND" property="manager_lname" compareValue="0"> 

        LOWER(supervisor_name) like '$manager_lname$&#37;' 

       </isNotEqual> 

       <isNotEqual prepend="AND" property="manager_fname" compareValue="0"> 

        LOWER(supervisor_name) like '%, $manager_fname$&#37;' 

       </isNotEqual> 

      </dynamic> 

     </if> 


    </select> 

</mapper> 

堆棧跟蹤

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlMapClient' defined in class path resource [beans.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'class path resource [sqlMapConfig.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.NullPointerException 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1412) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456) 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:546) 
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:872) 
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:423) 
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139) 
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83) 
    at com.fidelity.cmplnr.test.TestService.setUp(TestService.java:17) 
    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.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.RunBefores.evaluate(RunBefores.java:27) 
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76) 
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50) 
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193) 
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52) 
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191) 
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42) 
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184) 
    at org.junit.runners.ParentRunner.run(ParentRunner.java:236) 
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50) 
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) 
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) 
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) 
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) 
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) 
Caused by: org.springframework.core.NestedIOException: Failed to parse mapping resource: 'class path resource [sqlMapConfig.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.NullPointerException 
    at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:466) 
    at org.mybatis.spring.SqlSessionFactoryBean.afterPropertiesSet(SqlSessionFactoryBean.java:340) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1469) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1409) 
    ... 34 more 
Caused by: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.NullPointerException 
    at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:117) 
    at org.apache.ibatis.builder.xml.XMLMapperBuilder.parse(XMLMapperBuilder.java:89) 
    at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:464) 
    ... 37 more 
Caused by: java.lang.NullPointerException 
    at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:105) 
    ... 39 more 

回答

3

使用SqlMapClient屬性mapperLocations預計映射文件不配置文件(其被提供給SESSIONFACTORY)

org.mybatis.spring.SqlSessionFactoryBean類調用解析方法,其試圖找到映射器

public void parse() { 
    if (!configuration.isResourceLoaded(resource)) { 
     configurationElement(parser.evalNode("/mapper")); 
     configuration.addLoadedResource(resource); 
     bindMapperForNamespace(); 
    } 

如果所有mpper文件都放在classpath中的文件夾sqlmap中,則可以將映射器配置爲如下所示。

<property name="mapperLocations" value="classpath:sqlmap/*.xml" /> 
+0

工作完美,謝謝! – Raitei