整合spring和mybatis之后,测试整合是否成功的测试代码,抛出了异常。
以下是spring配置文件:
<?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:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="com.mysql.jdbc.Driver"></property>
<property name="jdbcUrl" value="jdbc:mysql://localhost:3306/***"></property>
<property name="user" value="***"></property>
<property name="password" value="***"></property>
</bean>
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="configLocation" value="sqlMapConfig.xml"></property>
<property name="dataSource" ref="dataSource"></property>
</bean>
<!--<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="mapper1"></property>
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
</bean> -->
<bean id="userMapper" class="org.mybatis.spring.mapper.MapperFactoryBean">
<property name="mapperInterface" value="mapper1.UserMapper"></property>
<property name="sqlSessionFactory" ref="sqlSessionFactory"></property>
</bean>
</beans>
mybatis主配置文件:
<?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="mapper1/UserMapper.xml"></mapper>
</mappers>
</configuration>
测试代码:
package maintest1;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import bean1.User1;
import mapper1.UserMapper;
public class Test1 {
/**
* @param args
*/
public static void main(String[] args) {
UserMapper userMapper = (UserMapper)new ClassPathXmlApplicationContext("applicationConfig.xml").getBean("userMapper");
User1 user = userMapper.findById(1);
System.out.println(user);
}
}
运行后抛出的异常:
12:30:57,314 INFO ClassPathXmlApplicationContext:578 - Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@68f99ff5: startup date [Fri Jun 28 12:30:57 GMT+08:00 2019]; root of context hierarchy
12:30:57,361 INFO XmlBeanDefinitionReader:317 - Loading XML bean definitions from class path resource [applicationConfig.xml]
12:30:57,562 INFO MLog:212 - MLog clients using slf4j logging.
12:30:57,710 INFO C3P0Registry:212 - Initializing c3p0-0.9.5.2 [built 08-December-2015 22:06:04 -0800; debug? true; trace: 10]
12:30:57,935 WARN ClassPathXmlApplicationContext:546 - Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [applicationConfig.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse config resource: class path resource [sqlMapConfig.xml]; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'test1.User1'. Cause: java.lang.ClassNotFoundException: Cannot find class: test1.User1
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [applicationConfig.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse config resource: class path resource [sqlMapConfig.xml]; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'test1.User1'. Cause: java.lang.ClassNotFoundException: Cannot find class: test1.User1
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1578)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:753)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:839)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
at maintest1.Test1.main(Test1.java:15)
Caused by: org.springframework.core.NestedIOException: Failed to parse config resource: class path resource [sqlMapConfig.xml]; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'test1.User1'. Cause: java.lang.ClassNotFoundException: Cannot find class: test1.User1
at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:500)
at org.mybatis.spring.SqlSessionFactoryBean.afterPropertiesSet(SqlSessionFactoryBean.java:380)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1637)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1574)
... 12 more
Caused by: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'test1.User1'. Cause: java.lang.ClassNotFoundException: Cannot find class: test1.User1
at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:109)
at org.apache.ibatis.builder.xml.XMLConfigBuilder.parse(XMLConfigBuilder.java:92)
at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:494)
... 15 more
Caused by: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'test1.User1'. Cause: java.lang.ClassNotFoundException: Cannot find class: test1.User1
at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:120)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.parse(XMLMapperBuilder.java:92)
at org.apache.ibatis.builder.xml.XMLConfigBuilder.mapperElement(XMLConfigBuilder.java:322)
at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:107)
... 17 more
Caused by: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'test1.User1'. Cause: java.lang.ClassNotFoundException: Cannot find class: test1.User1
at org.apache.ibatis.builder.BaseBuilder.resolveClass(BaseBuilder.java:103)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:264)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:251)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElements(XMLMapperBuilder.java:243)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:116)
... 20 more
Caused by: org.apache.ibatis.type.TypeException: Could not resolve type alias 'test1.User1'. Cause: java.lang.ClassNotFoundException: Cannot find class: test1.User1
at org.apache.ibatis.type.TypeAliasRegistry.resolveAlias(TypeAliasRegistry.java:117)
at org.apache.ibatis.builder.BaseBuilder.resolveAlias(BaseBuilder.java:130)
at org.apache.ibatis.builder.BaseBuilder.resolveClass(BaseBuilder.java:101)
... 24 more
Caused by: java.lang.ClassNotFoundException: Cannot find class: test1.User1
at org.apache.ibatis.io.ClassLoaderWrapper.classForName(ClassLoaderWrapper.java:190)
at org.apache.ibatis.io.ClassLoaderWrapper.classForName(ClassLoaderWrapper.java:89)
at org.apache.ibatis.io.Resources.classForName(Resources.java:256)
at org.apache.ibatis.type.TypeAliasRegistry.resolveAlias(TypeAliasRegistry.java:113)
... 26 more
看上面异常信息是"sqlSessionFactory"创建不出来,觉得问题原因应该是spring配置文件写错,但是检查了几次没有出现问题,请指教。
附上sqlMapConfig配置:
<?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="mapper1/UserMapper.xml"></mapper>
</mappers>
</configuration>
看下你的User1 这个类和User1Mapper.xml配置Cause: java.lang.ClassNotFoundException: Cannot find class: test1.User1
Failed to parse config resource: class path resource [sqlMapConfig.xml];
sqlMapConfig.xml 配置发出来
User1类:
package bean1;
import java.util.List;
public class User1 {
private int id;
private String name;
private int age;
private List<Item> items;
public List<Item> getItems() {
return items;
}
public void setItems(List<Item> items) {
this.items = items;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
@Override
public String toString() {
return "User1 [id=" + id + ", name=" + name + ", age=" + age
+ ", items=" + items + "]";
}
}
UserMapper.xml配置:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//ibatis.apache.org//DTD Mapper 3.0//EN"
"http://ibatis.apache.org/dtd/ibatis-3-mapper.dtd">
<mapper namespace="test1.UserMapper">
<resultMap type="test1.User1" id="userResultMap">
<id column="id" property="id"/>
<result column="name" property="name"/>
<result column="age" property="age"/>
<collection property="items" ofType="test1.Item">
<id column="item_id" property="id"/>
<collection property="itemDetails" ofType="test1.ItemDetail">
<id column="itemdetail_id" property="id"/>
<result column="itemdetail_name" property="name"/>
<result column="number" property="num"/>
<result column="price" property="price"/>
</collection>
</collection>
</resultMap>
<select id="findById" parameterType="int" resultMap="userResultMap">
select *,item.id item_id,itemdetail.id itemdetail_id,itemdetail.name itemdetail_name
from user,item,itemdetail
where user.id=#{value};
</select>
<select id="findByName" parameterType="string" resultMap="userResultMap">
select * from user where name=#{value};
</select>
补充文件路径: