新手myibatis配置报错 求解答
org.apache.ibatis.exceptions.PersistenceException:### Error building SqlSession.
### The error may exist in SQL Mapper Configuration
### Cause: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: org.apache.ibatis.builder.BuilderException: Error registering typeAlias for 'UserDaoMapper.xml'. Cause: java.lang.ClassNotFoundException: Cannot find class: com.icreate.dao/UserDaoMapper.xml
at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)
at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:51)
at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:35)
at com.mybatis.config.UserDaoTest.userDaoTest(UserDaoTest.java:19)
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.InvokeMethod.evaluate(InvokeMethod.java:20)
at org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)
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.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: org.apache.ibatis.builder.BuilderException: Error registering typeAlias for 'UserDaoMapper.xml'. Cause: java.lang.ClassNotFoundException: Cannot find class: com.icreate.dao/UserDaoMapper.xml
at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:103)
at org.apache.ibatis.builder.xml.XMLConfigBuilder.parse(XMLConfigBuilder.java:86)
at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:49)
... 25 more
Caused by: org.apache.ibatis.builder.BuilderException: Error registering typeAlias for 'UserDaoMapper.xml'. Cause: java.lang.ClassNotFoundException: Cannot find class: com.icreate.dao/UserDaoMapper.xml
at org.apache.ibatis.builder.xml.XMLConfigBuilder.typeAliasesElement(XMLConfigBuilder.java:124)
at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:93)
... 27 more
Caused by: java.lang.ClassNotFoundException: Cannot find class: com.icreate.dao/UserDaoMapper.xml
at org.apache.ibatis.io.ClassLoaderWrapper.classForName(ClassLoaderWrapper.java:188)
at org.apache.ibatis.io.ClassLoaderWrapper.classForName(ClassLoaderWrapper.java:87)
at org.apache.ibatis.io.Resources.classForName(Resources.java:250)
at org.apache.ibatis.builder.xml.XMLConfigBuilder.typeAliasesElement(XMLConfigBuilder.java:117)
... 28 more
------------------------------
代码：
package com.mybatis.config;
import java.io.Reader;
import java.util.Iterator;
import java.util.List;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import org.junit.Test;
public class UserDaoTest {
@Test
public void userDaoTest() throws Exception
{
String resource = "MyBatis-Configuration.xml";
Reader reader = Resources.getResourceAsReader(resource);
SqlSessionFactoryBuilder builder = new SqlSessionFactoryBuilder();
SqlSessionFactory factory = builder.build(reader);
SqlSession session = factory.openSession();
UserDao userDao = session.getMapper(UserDao.class);
User user = new User();
user.setUserName("hongye");
user.setPassword("123456");
user.setComment("备注");
userDao.insert(user);
System.out.println("记录条数："+userDao.countAll());
List<User> users = userDao.selectAll();
Iterator<User> iter = users.iterator();
while(iter.hasNext()){
User u = iter.next();
System.out.println("用户名："+u.getUserName()+"密码："+u.getPassword());
}
user.setComment("comment");
userDao.update(user);
User u = userDao.findByUserName("hongye");
System.out.println(u.getComment());
userDao.delete("hongye");
System.out.println("记录条数："+userDao.countAll());
session.commit();
session.close();
}
}
------------------
<?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>
<environments default="development">
<environment id="development">
<transactionManager type="JDBC" />
<dataSource type="POOLED">
<property name="driver" value="com.microsoft.sqlserver.jdbc.SQLServerDriver" />
<property name="url" value="jdbc:sqlserver://localhost:1433;databaseName=zzgj_sbgl" />
<property name="username" value="sa" />
<property name="password" value="Wlzx123456" />
</dataSource>
</environment>
</environments>
<mappers>
<mapper resource="com/mybatis/config/UserDaoMapper.xml"/>
</mappers>
</configuration>
------------------------------------
<?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.mybatis.config.UserDao">
<select id="countAll" resultType="int">
select count(*) c from user;
</select>
<select id="selectAll" resultType="com.mybatis.config.User">
select * from user order by userName asc
</select>
<insert id="insert" parameterType="com.mybatis.config.User">
insert into user(userName,password,comment) values(#{userName},#{password},#{comment})
</insert>
<update id="update" parameterType="com.mybatis.config.User">
update user set userName=#{userName},password=#{password},comment=#{comment} where userName=#{userName}
</update>
<delete id="delete" parameterType="int">
delete from user where userName=#{userName}
</delete>
<select id="findByUserName" parameterType="String" resultType="com.mybatis.config.User">
select * from user where userName=#{userName}
</select>
</mapper>
--------------------编程问答-------------------- 除 --------------------编程问答-------------------- icreate 啥情况？ --------------------编程问答-------------------- java.lang.ClassNotFoundException: Cannot find class: com.icreate.dao/UserDaoMapper.xml 这报错的类在是在com.icreate.dao包下而你配置的dao接口在这个包下com.mybatis.config<mapper namespace="com.mybatis.config.UserDao">两个接口不在同一个包下
补充：Java , Java相关
