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500錯誤

HTTP Status 500 -

type Exception report

message

description The server encountered an internal error that prevented it from fulfilling this request.

exception

org.apache.ibatis.exceptions.PersistenceException:
### Error building SqlSession.
### The error may exist in com/imooc/config/sqlxml/Message.xml
### The error occurred while processing mapper_resultMap[MessageResult]
### Cause: 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 ' com.imooc.bean.Message'. ?Cause: java.lang.ClassNotFoundException: Cannot find class: ?com.imooc.bean.Message
org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30)
org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:54)
org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:38)
com.imooc.db.DBAccess.getSqlSession(DBAccess.java:17)
com.imooc.dao.MessageDao.queryMessageList(MessageDao.java:23)
com.imooc.service.ListService.queryMessageList(ListService.java:14)
com.imooc.servlet.ListServlet.doGet(ListServlet.java:35)
javax.servlet.http.HttpServlet.service(HttpServlet.java:620)
javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

root cause

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 ' com.imooc.bean.Message'. ?Cause: java.lang.ClassNotFoundException: Cannot find class: ?com.imooc.bean.Message
org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:118)
org.apache.ibatis.builder.xml.XMLConfigBuilder.parse(XMLConfigBuilder.java:96)
org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:52)
org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:38)
com.imooc.db.DBAccess.getSqlSession(DBAccess.java:17)
com.imooc.dao.MessageDao.queryMessageList(MessageDao.java:23)
com.imooc.service.ListService.queryMessageList(ListService.java:14)
com.imooc.servlet.ListServlet.doGet(ListServlet.java:35)
javax.servlet.http.HttpServlet.service(HttpServlet.java:620)
javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

root 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 ' com.imooc.bean.Message'. ?Cause: java.lang.ClassNotFoundException: Cannot find class: ?com.imooc.bean.Message
org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:120)
org.apache.ibatis.builder.xml.XMLMapperBuilder.parse(XMLMapperBuilder.java:92)
org.apache.ibatis.builder.xml.XMLConfigBuilder.mapperElement(XMLConfigBuilder.java:360)
org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:116)
org.apache.ibatis.builder.xml.XMLConfigBuilder.parse(XMLConfigBuilder.java:96)
org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:52)
org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:38)
com.imooc.db.DBAccess.getSqlSession(DBAccess.java:17)
com.imooc.dao.MessageDao.queryMessageList(MessageDao.java:23)
com.imooc.service.ListService.queryMessageList(ListService.java:14)
com.imooc.servlet.ListServlet.doGet(ListServlet.java:35)
javax.servlet.http.HttpServlet.service(HttpServlet.java:620)
javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

root cause

org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias ' com.imooc.bean.Message'. ?Cause: java.lang.ClassNotFoundException: Cannot find class: ?com.imooc.bean.Message
org.apache.ibatis.builder.BaseBuilder.resolveClass(BaseBuilder.java:118)
org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:265)
org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:252)
org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElements(XMLMapperBuilder.java:244)
org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:116)
org.apache.ibatis.builder.xml.XMLMapperBuilder.parse(XMLMapperBuilder.java:92)
org.apache.ibatis.builder.xml.XMLConfigBuilder.mapperElement(XMLConfigBuilder.java:360)
org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:116)
org.apache.ibatis.builder.xml.XMLConfigBuilder.parse(XMLConfigBuilder.java:96)
org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:52)
org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:38)
com.imooc.db.DBAccess.getSqlSession(DBAccess.java:17)
com.imooc.dao.MessageDao.queryMessageList(MessageDao.java:23)
com.imooc.service.ListService.queryMessageList(ListService.java:14)
com.imooc.servlet.ListServlet.doGet(ListServlet.java:35)
javax.servlet.http.HttpServlet.service(HttpServlet.java:620)
javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

root cause

org.apache.ibatis.type.TypeException: Could not resolve type alias ' com.imooc.bean.Message'. ?Cause: java.lang.ClassNotFoundException: Cannot find class: ?com.imooc.bean.Message
org.apache.ibatis.type.TypeAliasRegistry.resolveAlias(TypeAliasRegistry.java:120)
org.apache.ibatis.builder.BaseBuilder.resolveAlias(BaseBuilder.java:149)
org.apache.ibatis.builder.BaseBuilder.resolveClass(BaseBuilder.java:116)
org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:265)
org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:252)
org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElements(XMLMapperBuilder.java:244)
org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:116)
org.apache.ibatis.builder.xml.XMLMapperBuilder.parse(XMLMapperBuilder.java:92)
org.apache.ibatis.builder.xml.XMLConfigBuilder.mapperElement(XMLConfigBuilder.java:360)
org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:116)
org.apache.ibatis.builder.xml.XMLConfigBuilder.parse(XMLConfigBuilder.java:96)
org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:52)
org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:38)
com.imooc.db.DBAccess.getSqlSession(DBAccess.java:17)
com.imooc.dao.MessageDao.queryMessageList(MessageDao.java:23)
com.imooc.service.ListService.queryMessageList(ListService.java:14)
com.imooc.servlet.ListServlet.doGet(ListServlet.java:35)
javax.servlet.http.HttpServlet.service(HttpServlet.java:620)
javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

root cause

java.lang.ClassNotFoundException: Cannot find class: ?com.imooc.bean.Message
org.apache.ibatis.io.ClassLoaderWrapper.classForName(ClassLoaderWrapper.java:200)
org.apache.ibatis.io.ClassLoaderWrapper.classForName(ClassLoaderWrapper.java:89)
org.apache.ibatis.io.Resources.classForName(Resources.java:261)
org.apache.ibatis.type.TypeAliasRegistry.resolveAlias(TypeAliasRegistry.java:116)
org.apache.ibatis.builder.BaseBuilder.resolveAlias(BaseBuilder.java:149)
org.apache.ibatis.builder.BaseBuilder.resolveClass(BaseBuilder.java:116)
org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:265)
org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:252)
org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElements(XMLMapperBuilder.java:244)
org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:116)
org.apache.ibatis.builder.xml.XMLMapperBuilder.parse(XMLMapperBuilder.java:92)
org.apache.ibatis.builder.xml.XMLConfigBuilder.mapperElement(XMLConfigBuilder.java:360)
org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:116)
org.apache.ibatis.builder.xml.XMLConfigBuilder.parse(XMLConfigBuilder.java:96)
org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:52)
org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:38)
com.imooc.db.DBAccess.getSqlSession(DBAccess.java:17)
com.imooc.dao.MessageDao.queryMessageList(MessageDao.java:23)
com.imooc.service.ListService.queryMessageList(ListService.java:14)
com.imooc.servlet.ListServlet.doGet(ListServlet.java:35)
javax.servlet.http.HttpServlet.service(HttpServlet.java:620)
javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

note The full stack trace of the root cause is available in the Apache Tomcat/7.0.53 logs.

Apache Tomcat/7.0.53

Message.xml代碼：

<?xml version="1.0" encoding="UTF-8"?>

<!--

? ? ? ?Licensed under the Apache License, Version 2.0 (the "License");

? ? ? ?you may not use this file except in compliance with the License.

? ? ? ?You may obtain a copy of the License at

? ? ? ? ? http://www.apache.org/licenses/LICENSE-2.0

? ? ? ?Unless required by applicable law or agreed to in writing, software

? ? ? ?distributed under the License is distributed on an "AS IS" BASIS,

? ? ? ?WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

? ? ? ?See the License for the specific language governing permissions and

? ? ? ?limitations under the License.

-->

<!DOCTYPE mapper

? ? PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"

? ? "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

? <resultMap type=" com.imooc.bean.Message" id="MessageResult">

? ? <id column="ID" jdbcType="INTEGER" property="id"/>

? ? <result column="COMMAND" jdbcType="VARCHAR" property="command"/>

? ? <result column="DESCRIPTION" jdbcType="VARCHAR" property="description"/>

? ? <result column="CONTENT" jdbcType="VARCHAR" property="content"/>

? </resultMap>

? <select id="queryMessageList" parameterType="com.imooc.bean.Message" resultMap="MessageResult">

? ?select ID,COMMAND,DESCRIPTION,CONTENT from MESSAGE WHERE 1= 1?

? <if test="command!=null &&!""equals(command.trim())">

? and COMMAND = #{command}?

? </if>

? <if test="description!=null &&!""equals(description.trim())">

? and DESCRIPTION like '%' ?#{description} ?'%'

? </if>

? </select>

</mapper>

qq_柒分醉_03927370

2017-05-24

源自：通過自動回復(fù)機(jī)器人學(xué)Mybatis---基礎(chǔ)版 4-2

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qq_柒分醉_03927370 提問者
2017-05-25

<?xml version="1.0" encoding="UTF-8" ?>

<!--

? ? ? ?Licensed under the Apache License, Version 2.0 (the "License");

? ? ? ?you may not use this file except in compliance with the License.

? ? ? ?You may obtain a copy of the License at

? ? ? ? ? http://www.apache.org/licenses/LICENSE-2.0

? ? ? ?Unless required by applicable law or agreed to in writing, software

? ? ? ?distributed under the License is distributed on an "AS IS" BASIS,

? ? ? ?WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

? ? ? ?See the License for the specific language governing permissions and

? ? ? ?limitations under the License.

-->

<!DOCTYPE configuration

? ? PUBLIC "-//mybatis.org//DTD Config 3.0//EN"

? ? "http://mybatis.org/dtd/mybatis-3-config.dtd">

<!-- ?

? <settings>

? ? <setting name="useGeneratedKeys" value="false"/>

? ? <setting name="useColumnLabel" value="true"/>

? </settings>

? <typeAliases>

? ? <typeAlias alias="UserAlias" type="org.apache.ibatis.submitted.complex_property.User"/>

? </typeAliases>

-->

? <environments default="development">

? ? <environment id="development">

? ? ? <transactionManager type="JDBC">

? ? ? ? <property name="" value=""/>

? ? ? </transactionManager>

? ? ? <dataSource type="UNPOOLED">

? ? ? ? <property name="driver" value="com.mysql.jdbc.Driver"/>

? ? ? ? <property name="url" value="jdbc:mysql://127.0.0.1:3306/micro_message"/>

? ? ? ? <property name="username" value="root"/>

? ? ? ? <property name="password" value="123"/>

? ? ? </dataSource>

? ? </environment>

? </environments>

?

? <mappers>

? ? <mapper resource="com/imooc/config/sqlxml/Message.xml"/>

? </mappers>

</configuration>

0 回復(fù) 有任何疑惑可以回復(fù)我~

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小小幻術(shù)師
2017-05-25

message.xml配置到configuration.xml里了嗎

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#1

qq_柒分醉_03927370 提問者

配置了

2017-05-25 回復(fù) 有任何疑惑可以回復(fù)我~

#2

qq_柒分醉_03927370 提問者

找不到哪個地方有問題

2017-05-25 回復(fù) 有任何疑惑可以回復(fù)我~

小小幻術(shù)師
2017-05-25

message.xml配置到configuration.xml里了嗎

0 回復(fù) 有任何疑惑可以回復(fù)我~

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