Mybatis 3 整合 Spring mvc 3, spring 3 的问题？解决立即结贴给分！

End_x 2013-07-30 08:01:02
先贴下报的异常！ 大概的意思就是Mybatis 3的Mapper只是一个接口，但是目前可能是我配置的问题，所以造成在读取时Mybatis去实例那个接口，而接口是不能被实例的， 于是就报构造错误！如果按传统的写法应该是有一类去实现接口的，但是Mybatis-spring包相应的文档没有实现类，但是也可以正常运行的。
主要参考部分：http://mybatis.github.io/spring/zh/sample.html
里面有实例。麻烦那们高手帮忙看下。完事立即结贴给分。
项目是用maven，所以几K
贴下地址：http://115.com/lb/5lbfvejc#beautyInPhone.tar.gz
115网盘礼包码：5lbfvejc


SEVERE: Servlet.service() for servlet [nothing] in context with path [/beautyInPhone] threw exception [Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.reflection.ReflectionException: Error instantiating interface com.beauty.oneshow.mapper.LocationMapper with invalid types () or values (). Cause: java.lang.NoSuchMethodException: com.beauty.oneshow.mapper.LocationMapper.<init>()] with root cause

java.lang.NoSuchMethodException: com.beauty.oneshow.mapper.LocationMapper.<init>()

	at java.lang.Class.getConstructor0(Class.java:2730)

	at java.lang.Class.getDeclaredConstructor(Class.java:2004)

	at org.apache.ibatis.reflection.factory.DefaultObjectFactory.instantiateClass(DefaultObjectFactory.java:30)

	at org.apache.ibatis.reflection.factory.DefaultObjectFactory.create(DefaultObjectFactory.java:19)

	at org.apache.ibatis.reflection.factory.DefaultObjectFactory.create(DefaultObjectFactory.java:14)

	at org.apache.ibatis.executor.resultset.FastResultSetHandler.createResultObject(FastResultSetHandler.java:331)

	at org.apache.ibatis.executor.resultset.FastResultSetHandler.createResultObject(FastResultSetHandler.java:315)

	at org.apache.ibatis.executor.resultset.FastResultSetHandler.getRowValue(FastResultSetHandler.java:216)

	at org.apache.ibatis.executor.resultset.FastResultSetHandler.handleRowValues(FastResultSetHandler.java:173)

	at org.apache.ibatis.executor.resultset.FastResultSetHandler.handleResultSet(FastResultSetHandler.java:146)

	at org.apache.ibatis.executor.resultset.FastResultSetHandler.handleResultSets(FastResultSetHandler.java:112)

	at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:40)

	at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:55)

	at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:41)

	at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:243)

	at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:117)

	at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:72)

	at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:79)

	at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:73)

	at org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:39)

	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

	at java.lang.reflect.Method.invoke(Method.java:601)

	at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:350)

	at com.sun.proxy.$Proxy6.selectOne(Unknown Source)

	at org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:155)

	at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:75)

	at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:25)

	at com.sun.proxy.$Proxy7.findAllLocation(Unknown Source)

	at com.beauty.oneshow.service.LocationService.findAllLocation(LocationService.java:17)

	at com.beauty.oneshow.controller.HelloController.index(HelloController.java:20)

	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

	at java.lang.reflect.Method.invoke(Method.java:601)

	at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)

	at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:426)

	at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:414)

	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790)

	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)

	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)

	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)

	at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)

	at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)

	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)

	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)

	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)

	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)

	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)

	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)

	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)

	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1008)

	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)

	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)

	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)

	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)

	at java.lang.Thread.run(Thread.java:722)


贴下关键部分的项目源码
spring配置文件


<context:property-placeholder location="classpath:jdbc.properties" ignore-unresolvable="true"  />



	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">

		<property name="driverClassName" value="${jdbc.driverClassName}" />

		<property name="url" value="${jdbc.url}" />

		<property name="username" value="${jdbc.username}" />

		<property name="password" value="${jdbc.password}" />

	</bean>

    

    <context:component-scan base-package="com.beauty.oneshow.service" />

    

    <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

		<property name="dataSource" ref="dataSource" />

	</bean>



    <!-- enable autowire -->

    <context:annotation-config />



    <!-- enable transaction demarcation with annotations -->

    <tx:annotation-driven />



    <!-- define the SqlSessionFactory -->

    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

        <property name="dataSource" ref="dataSource" />

        <property name="typeAliasesPackage" value="com.beauty.oneshow.vo" />

    </bean>



    <!-- scan for mappers and let them be autowired -->

    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">

        <property name="basePackage" value="com.beauty.oneshow.mapper" />

    </bean>


出错的Mapper. 


package com.beauty.oneshow.mapper;



public interface LocationMapper {



	void findAllLocation();

}

对应的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="com.beauty.oneshow.mapper.LocationMapper">



	<resultMap id="LocationResultMap" type="com.beauty.oneshow.mapper.LocationMapper">

		<id column="locationId" property="locationId" />

		<result column="locationName" property="locationName" />

	</resultMap>

	

	<select id="findAllLocation" resultMap="LocationResultMap">

		select locationId AS locationId, locationName AS locationName from location

	</select>

</mapper>

如果是还让我写一个实现类按照以前的方式写的就算了，我现在想知道为什么官方的项目可以，我的不可以！
多谢了！
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End_x 2013-08-02
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引用 3 楼 feier00 的回复:
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <property name="typeAliasesPackage" value="com.beauty.oneshow.vo" /> <property name="configLocation"> <value>classpath:mybatis.xml</value> </property> </bean> mybatis.xml,所有的mapper对应的xml都加入进这个文件 <?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> <mappers> <mapper resource="com/beauty/oneshow/mapper/LocationMapper.xml" /> </mappers> </configuration>
用了MapperScannerConfigurer就可以不加这个了！
跳蚤图 2013-07-31
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<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <property name="typeAliasesPackage" value="com.beauty.oneshow.vo" /> <property name="configLocation"> <value>classpath:mybatis.xml</value> </property> </bean> mybatis.xml,所有的mapper对应的xml都加入进这个文件 <?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> <mappers> <mapper resource="com/beauty/oneshow/mapper/LocationMapper.xml" /> </mappers> </configuration>
Acesidonu 2013-07-31
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mapper.xml要和mapper接口放一起 <resultMap id="LocationResultMap" type="com.beauty.oneshow.mapper.LocationMapper"> type="" bean名不对吧，你这个是接口
End_x 2013-07-31
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不知道是因为太简单了还是因为太难了，为什么没有一个高手愿意给点建议！
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