mybatis解析配置文件及sql

XMLScriptBuilder#parseDynamicTags

parameterMapElement

解析databaseIdProvider内标签

mapperElement

解析typeHandlers内标签

typeHandlerElement

typeAliasesElement

buildStatementFromContext

将解析好的XNode传给下面方法

environmentsElement

objectWrapperFactoryElement

解析typeAliases内标签

解析cache标签

解析/mapper/sql标签

创建

parse方法

返回一个document放入到

这个方法的入参是右边那样的XNode对象集合

解析cache-ref标签

databaseIdProviderElement

EmployeeMapper.xml

XPathParser

<select resultMap=\"BaseResultMap\" id=\"selectOne\">    select * from employee where id =#{id}</select> 

propertiesElement

cacheRefElement

解析/mapper/resultMap标签

mybatis-config.xml

root.evalNode(\"mappers\

resultMapElements

evalNode

XMLStatementBuilder#parseStatementNode

XMLConfigBuilder

XMLMapperBuilder#configurationElement

objectFactoryElement

解析objectWrapperFactory内标签

返回MappedStatement

解析objectFactory内标签

MappedStatement.Builder

解析/mapper/parameterMap标签

pluginElement

解析plugins内标签

sqlElement

解析environments内标签

createDocument

到这里一直都是在解析mybatis-config.xml

解析select|insert|update|delete等sql标签

返回MappedStatement并放入到configuration

XMLScriptBuilder#parseScriptNode

XNode

DocumentBuilderImpl

<select resultMap=\"BaseResultMap\" id=\"selectList\">    <foreach item=\"item\" collection=\"ids\" close=\")\" separator=\

parseConfiguration

<mapper namespace=\"org.apache.ibatis.mapper.IEmployeeMapper\">    <resultMap id=\"BaseResultMap\" type=\"org.apache.ibatis.models.Employee\">        <id jdbcType=\"INTEGER\" column=\"id\" property=\"id\"/>                <result jdbcType=\"VARCHAR\" column=\"last_name\" property=\"lastName\"/>                <result jdbcType=\"INTEGER\" column=\"gender\" property=\"gender\"/>                <result jdbcType=\"VARCHAR\" column=\"email\" property=\"email\"/>                <result jdbcType=\"INTEGER\" column=\"department_id\" property=\"departmentId\"/>                <result jdbcType=\"VARCHAR\" column=\"department_name\" property=\"departmentName\"/>                <result jdbcType=\"TIMESTAMP\" column=\"birth\" property=\"birth\"/>                <result jdbcType=\"VARCHAR\" column=\"password\" property=\"password\"/>                <result jdbcType=\"VARCHAR\" column=\"salt\" property=\"salt\"/>            </resultMap>    <select resultMap=\"BaseResultMap\" id=\"selectList\">        <foreach item=\"item\" collection=\"ids\" close=\")\" separator=\

返回一个MixedSqlNode

cacheElement

MapperBuilderAssistant#addMappedStatement

XMLMapperBuilder#parse

MappedStatement

从这里开始解析上面EmployeeMapper.xml

<configuration>    <typeAliases></typeAliases>    <typeHandlers></typeHandlers>    <objectFactory type=\"\"></objectFactory>    <reflectorFactory type=\"\"></reflectorFactory>    <environments default=\"development\">        <environment id=\"development\">            <transactionManager type=\"JDBC\"/>            <dataSource type=\"POOLED\">                <property name=\"driver\" value=\"com.mysql.cj.jdbc.Driver\"/>                <property name=\"url\" value=\"jdbc:mysql://localhost:3306/cls?useUnicode=true&characterEncoding=utf8&allowMultiQueries=true&useSSL=false&zeroDateTimeBehavior=convertToNull\"/>                <property name=\"username\" value=\"root\"/>                <property name=\"password\" value=\"admin\"/>            </dataSource>        </environment>    </environments>    <databaseIdProvider type=\"\"></databaseIdProvider>    <mappers>        <mapper resource=\"com/alijiejie/mapper/EmployeeMapper.xml\"/>    </mappers></configuration>

解析properties内标签