spring 整合 mybatis 中数据源的几种配置方式
因为spring 整合mybatis的过程中， 有好几种整合方式，尤其是数据源那块，经常看到不一样的配置方式，总感觉有点乱，所以今天有空总结下。
一、采用org.mybatis.spring.mapper.MapperScannerConfigurer
其实逆向工程也是这种方式
1、数据源配配置文件
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd"> <!-- 加载配置文件 -->
<context:property-placeholder location="classpath:resource/*.properties" /> <!-- 数据库连接池 -->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
destroy-method="close">
<property name="driverClassName" value="${jdbc.driver}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
<property name="maxActive" value="10" />
<property name="minIdle" value="5" />
</bean>
<!-- sqlsessionFactory -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="configLocation" value="classpath:mybatis/SqlMapConfig.xml"></property>
<property name="dataSource" ref="dataSource"></property>
</bean> <!-- 加载mapper代理对象 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.jdd.mapper"></property>
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
</bean> </beans>
2、DAO文件
package com.jdd.mapper; import com.jdd.pojo.Employee;
import java.util.List; public interface EmployeeMapper { public Employee getEmployeeById(int id); public List<Employee> findAllEmployees(); }
3、Mapper.xml 文件
<?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.jdd.mapper.EmployeeMapper"> <select id="getEmployeeById" parameterType="int" resultType="com.jdd.pojo.Employee">
<![CDATA[
select * from employee where id = #{id};
]]>
</select> <select id="findAllEmployees" resultType="com.jdd.pojo.Employee">
<![CDATA[
select * from employee where status='1';
]]>
</select> </mapper>
这样在service类里就可以直接注入dao接口了
package com.jdd.service.impl; import com.jdd.mapper.EmployeeMapper;
import com.jdd.pojo.Employee;
import com.jdd.service.EmployeeService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List; @Service("employeeService")
public class EmployeeServiceImpl implements EmployeeService{ @Autowired
private EmployeeMapper employeeMapper; @Override
public Employee getEmployeeById(int id) {
return employeeMapper.getEmployeeById(id);
} @Override
public List<Employee> findAllEmployees() {
return employeeMapper.findAllEmployees();
} }
二、 采用抽象类org.mybatis.spring.support.SqlSessionDaoSupport， 给它注入 sqlSessionFactory的方式
1、数据源配置文件
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd"> <!-- 加载配置文件 -->
<context:property-placeholder location="classpath:resource/*.properties" /> <!-- 数据库连接池 -->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
destroy-method="close">
<property name="driverClassName" value="${jdbc.driver}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
<property name="maxActive" value="10" />
<property name="minIdle" value="5" />
</bean> <!-- sqlsessionFactory -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="configLocation" value="classpath:mybatis/SqlMapConfig.xml"></property>
<property name="dataSource" ref="dataSource"></property>
<property name="mapperLocations" value="classpath:com/jdd/mapper/*.xml"></property>
</bean> </beans>
2、baseDao类
package com.hd.dao; import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.support.SqlSessionDaoSupport;
import javax.annotation.Resource; public abstract class BaseDao extends SqlSessionDaoSupport { @Resource
public void setSqlSessionFactory(SqlSessionFactory sqlSessionFactory) {
super.setSqlSessionFactory(sqlSessionFactory);
} }
3、接口 EmployeeDao.java 类
package com.hd.dao;
import com.hd.pojo.Employee;
import java.util.List;
public interface EmployeeDao {
Employee getEmployeeById(int id);
List<Employee> findAllEmployees();
}
4、dao实现类 EmployeeDaoImpl
package com.hd.dao.impl; import com.hd.dao.BaseDao;
import com.hd.dao.EmployeeDao;
import com.hd.pojo.Employee;
import org.springframework.stereotype.Repository;
import java.util.List; @Repository("employeeDao")
public class EmployeeDaoImpl extends BaseDao implements EmployeeDao { @Override
public Employee getEmployeeById(int id) {
return this.getSqlSession().selectOne("com.jdd.dao.EmployeeDao.getEmployeeById", id);
} @Override
public List<Employee> findAllEmployees() {
return this.getSqlSession().selectList("com.jdd.dao.EmployeeDao.findAllEmployees");
} }
5、这样就可以在service类里注入 employeeDao了
三、采用 org.mybatis.spring.SqlSessionTemplate 模板类
1、数据源文件
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd"> <!-- 加载配置文件 -->
<context:property-placeholder location="classpath:resource/*.properties" /> <!-- 数据库连接池 -->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
destroy-method="close">
<property name="driverClassName" value="${jdbc.driver}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
<property name="maxActive" value="10" />
<property name="minIdle" value="5" />
</bean> <!-- sqlsessionFactory -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="configLocation" value="classpath:mybatis/SqlMapConfig.xml"></property>
<property name="dataSource" ref="dataSource"></property>
<property name="mapperLocations" value="classpath:com/jdd/mapper/*.xml"></property>
</bean> <bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">
<constructor-arg index="0" ref="sqlSessionFactory"/>
</bean> </beans>
2、 basedao.java 类
package com.hd.dao; import org.mybatis.spring.SqlSessionTemplate;
import javax.annotation.Resource; public abstract class BaseDao { public SqlSessionTemplate sqlSessionTemplate;
@Resource
public void setSqlSessionTemplate(SqlSessionTemplate sqlSessionTemplate) {
this.sqlSessionTemplate = sqlSessionTemplate;
}
}
3、接口 EmployeeDao.java 类
package com.hd.dao; import com.hd.pojo.Employee;
import java.util.List; public interface EmployeeDao { Employee getEmployeeById(int id); List<Employee> findAllEmployees();
}
4、dao实现类 EmployeeDaoImpl
package com.hd.dao.impl; import com.hd.dao.BaseDao;
import com.hd.dao.EmployeeDao;
import com.hd.pojo.Employee;
import org.springframework.stereotype.Repository;
import java.util.List; @Repository("employeeDao")
public class EmployeeDaoImpl extends BaseDao implements EmployeeDao { @Override
public Employee getEmployeeById(int id) {
return sqlSessionTemplate.selectOne("com.jdd.dao.EmployeeDao.getEmployeeById", id);
} @Override
public List<Employee> findAllEmployees() {
return sqlSessionTemplate.selectList("com.jdd.dao.EmployeeDao.findAllEmployees");
} }
5、同样现在也可以在service类里直接注入 employeeDao使用了。
注：这里basedao的注入比较灵活，也可以注入 SqlSessionFactory， 然后再setter方法里创建 SqlSessionTemplate，如下：
package com.hd.dao; import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionTemplate; import javax.annotation.Resource; public abstract class BaseDao { public SqlSessionTemplate sqlSessionTemplate;
@Resource
public void setSqlSessionFactory(SqlSessionFactory sqlSessionFactory) {
sqlSessionTemplate = new SqlSessionTemplate(sqlSessionFactory);
} }
其实不管是采用 继承SqlSessionDaoSupport类， 注入 sqlSessionFactory的方式， 还是直接注入 SqlSessionTemplate 的方式， 本质上是一样的。
如果你采用 注入 sqlSessionFactory的方式， 它在底层也是通过sqlSessionFactory 来创建 SqlSessionTemplate ，然后通过其api来操作。
不信给你们看下 SqlSessionDaoSupport 的源码：
//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by Fernflower decompiler)
// package org.mybatis.spring.support; import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionTemplate;
import org.springframework.dao.support.DaoSupport;
import org.springframework.util.Assert; public abstract class SqlSessionDaoSupport extends DaoSupport {
private SqlSession sqlSession;
private boolean externalSqlSession; public SqlSessionDaoSupport() {
} public void setSqlSessionFactory(SqlSessionFactory sqlSessionFactory) {
if (!this.externalSqlSession) {
this.sqlSession = new SqlSessionTemplate(sqlSessionFactory);
} } public void setSqlSessionTemplate(SqlSessionTemplate sqlSessionTemplate) {
this.sqlSession = sqlSessionTemplate;
this.externalSqlSession = true;
} public SqlSession getSqlSession() {
return this.sqlSession;
} protected void checkDaoConfig() {
Assert.notNull(this.sqlSession, "Property 'sqlSessionFactory' or 'sqlSessionTemplate' are required");
}
}
同样 SqlSessionTemplate 继承了 SqlSession 接口， 因此不管操作哪个效果都一样
//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by Fernflower decompiler)
// package org.mybatis.spring; import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.sql.Connection;
import java.util.List;
import java.util.Map;
import org.apache.ibatis.exceptions.PersistenceException;
import org.apache.ibatis.executor.BatchResult;
import org.apache.ibatis.reflection.ExceptionUtil;
import org.apache.ibatis.session.Configuration;
import org.apache.ibatis.session.ExecutorType;
import org.apache.ibatis.session.ResultHandler;
import org.apache.ibatis.session.RowBounds;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.springframework.dao.support.PersistenceExceptionTranslator;
import org.springframework.util.Assert; public class SqlSessionTemplate implements SqlSession {
private final SqlSessionFactory sqlSessionFactory;
private final ExecutorType executorType;
private final SqlSession sqlSessionProxy;
private final PersistenceExceptionTranslator exceptionTranslator; public SqlSessionTemplate(SqlSessionFactory sqlSessionFactory) {
this(sqlSessionFactory, sqlSessionFactory.getConfiguration().getDefaultExecutorType());
} public SqlSessionTemplate(SqlSessionFactory sqlSessionFactory, ExecutorType executorType) {
this(sqlSessionFactory, executorType, new MyBatisExceptionTranslator(sqlSessionFactory.getConfiguration().getEnvironment().getDataSource(), true));
} public SqlSessionTemplate(SqlSessionFactory sqlSessionFactory, ExecutorType executorType, PersistenceExceptionTranslator exceptionTranslator) {
Assert.notNull(sqlSessionFactory, "Property 'sqlSessionFactory' is required");
Assert.notNull(executorType, "Property 'executorType' is required");
this.sqlSessionFactory = sqlSessionFactory;
this.executorType = executorType;
this.exceptionTranslator = exceptionTranslator;
this.sqlSessionProxy = (SqlSession)Proxy.newProxyInstance(SqlSessionFactory.class.getClassLoader(), new Class[]{SqlSession.class}, new SqlSessionTemplate.SqlSessionInterceptor());
} public SqlSessionFactory getSqlSessionFactory() {
return this.sqlSessionFactory;
} public ExecutorType getExecutorType() {
return this.executorType;
} public PersistenceExceptionTranslator getPersistenceExceptionTranslator() {
return this.exceptionTranslator;
} public <T> T selectOne(String statement) {
return this.sqlSessionProxy.selectOne(statement);
} public <T> T selectOne(String statement, Object parameter) {
return this.sqlSessionProxy.selectOne(statement, parameter);
} public <K, V> Map<K, V> selectMap(String statement, String mapKey) {
return this.sqlSessionProxy.selectMap(statement, mapKey);
} public <K, V> Map<K, V> selectMap(String statement, Object parameter, String mapKey) {
return this.sqlSessionProxy.selectMap(statement, parameter, mapKey);
} public <K, V> Map<K, V> selectMap(String statement, Object parameter, String mapKey, RowBounds rowBounds) {
return this.sqlSessionProxy.selectMap(statement, parameter, mapKey, rowBounds);
} public <E> List<E> selectList(String statement) {
return this.sqlSessionProxy.selectList(statement);
} public <E> List<E> selectList(String statement, Object parameter) {
return this.sqlSessionProxy.selectList(statement, parameter);
} public <E> List<E> selectList(String statement, Object parameter, RowBounds rowBounds) {
return this.sqlSessionProxy.selectList(statement, parameter, rowBounds);
} public void select(String statement, ResultHandler handler) {
this.sqlSessionProxy.select(statement, handler);
} public void select(String statement, Object parameter, ResultHandler handler) {
this.sqlSessionProxy.select(statement, parameter, handler);
} public void select(String statement, Object parameter, RowBounds rowBounds, ResultHandler handler) {
this.sqlSessionProxy.select(statement, parameter, rowBounds, handler);
} public int insert(String statement) {
return this.sqlSessionProxy.insert(statement);
} public int insert(String statement, Object parameter) {
return this.sqlSessionProxy.insert(statement, parameter);
} public int update(String statement) {
return this.sqlSessionProxy.update(statement);
} public int update(String statement, Object parameter) {
return this.sqlSessionProxy.update(statement, parameter);
} public int delete(String statement) {
return this.sqlSessionProxy.delete(statement);
} public int delete(String statement, Object parameter) {
return this.sqlSessionProxy.delete(statement, parameter);
} public <T> T getMapper(Class<T> type) {
return this.getConfiguration().getMapper(type, this);
} public void commit() {
throw new UnsupportedOperationException("Manual commit is not allowed over a Spring managed SqlSession");
} public void commit(boolean force) {
throw new UnsupportedOperationException("Manual commit is not allowed over a Spring managed SqlSession");
} public void rollback() {
throw new UnsupportedOperationException("Manual rollback is not allowed over a Spring managed SqlSession");
} public void rollback(boolean force) {
throw new UnsupportedOperationException("Manual rollback is not allowed over a Spring managed SqlSession");
} public void close() {
throw new UnsupportedOperationException("Manual close is not allowed over a Spring managed SqlSession");
} public void clearCache() {
this.sqlSessionProxy.clearCache();
} public Configuration getConfiguration() {
return this.sqlSessionFactory.getConfiguration();
} public Connection getConnection() {
return this.sqlSessionProxy.getConnection();
} public List<BatchResult> flushStatements() {
return this.sqlSessionProxy.flushStatements();
} private class SqlSessionInterceptor implements InvocationHandler {
private SqlSessionInterceptor() {
} public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
SqlSession sqlSession = SqlSessionUtils.getSqlSession(SqlSessionTemplate.this.sqlSessionFactory, SqlSessionTemplate.this.executorType, SqlSessionTemplate.this.exceptionTranslator); Object unwrapped;
try {
Object result = method.invoke(sqlSession, args);
if (!SqlSessionUtils.isSqlSessionTransactional(sqlSession, SqlSessionTemplate.this.sqlSessionFactory)) {
sqlSession.commit(true);
} unwrapped = result;
} catch (Throwable var11) {
unwrapped = ExceptionUtil.unwrapThrowable(var11);
if (SqlSessionTemplate.this.exceptionTranslator != null && unwrapped instanceof PersistenceException) {
SqlSessionUtils.closeSqlSession(sqlSession, SqlSessionTemplate.this.sqlSessionFactory);
sqlSession = null;
Throwable translated = SqlSessionTemplate.this.exceptionTranslator.translateExceptionIfPossible((PersistenceException)unwrapped);
if (translated != null) {
unwrapped = translated;
}
} throw (Throwable)unwrapped;
} finally {
if (sqlSession != null) {
SqlSessionUtils.closeSqlSession(sqlSession, SqlSessionTemplate.this.sqlSessionFactory);
} } return unwrapped;
}
}
}
spring 整合 mybatis 中数据源的几种配置方式的更多相关文章
- Spring+Mybatis多数据源的一种实现方式，支持事务
最近一个项目用到了多个数据库,所以需要实现动态切换数据源来查询数据,http://www.cnblogs.com/lzrabbit/p/3750803.html这篇文章让我受益匪浅,提供了一种自动切换 ...
- spring 中 hibernate 的 2种 配置方式（新旧 2种方式）
Spring对hibernate配置文件hibernate.cfg.xml的集成,来取代hibernate.cfg.xml的配置 Spring对hibernate配置文件hibernate.cfg.x ...
- SpringMVC中HandlerMapping的三种配置方式
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE beans PUBLIC "-/ ...
- 简单探讨spring整合mybatis时sqlSession不需要释放关闭的问题
https://blog.csdn.net/RicardoDing/article/details/79899686 近期,在使用spring和mybatis框架编写代码时,sqlSession不需要 ...
- 【springboot spring mybatis】看我怎么将springboot与spring整合mybatis与druid数据源
目录 概述 1.mybatis 2.druid 壹:spring整合 2.jdbc.properties 3.mybatis-config.xml 二:java代码 1.mapper 2.servic ...
- Maven项目中Spring整合Mybatis
Maven项目中Spring整合Mybatis 添加jar包依赖 spring需要的jar包依赖 <dependency> <groupId>org.springframewo ...
- Spring学习总结（五）——Spring整合MyBatis（Maven+MySQL）二
接着上一篇博客<Spring整合MyBatis(Maven+MySQL)一>继续. Spring的开放性和扩张性在J2EE应用领域得到了充分的证明,与其他优秀框架无缝的集成是Spring最 ...
- spring整合mybatis(hibernate)配置
一.Spring整合配置Mybatis spring整合mybatis可以不需要mybatis-config.xml配置文件,直接通过spring配置文件一步到位.一般需要具备如下几个基本配置. 1. ...
- Mybatis学习（六）————— Spring整合mybatis
一.Spring整合mybatis思路 非常简单,这里先回顾一下mybatis最基础的根基, mybatis,有两个配置文件 全局配置文件SqlMapConfig.xml(配置数据源,全局变量,加载映 ...
随机推荐
- UE4实现描边效果
描边效果属于常见常用的功能,现VR项目中,也需要射线选中一个物体,使物体高亮. 于是在网上找了部分资料,同时也感谢群里的一位大神的提点,总算将描边的功能实现了,这里也写一个简单的示例步骤. 1.我并不 ...
- JAVA之旅（二十四）——I/O流，字符流，FileWriter，IOException，文件续写，FileReader，小练习
JAVA之旅(二十四)--I/O流,字符流,FileWriter,IOException,文件续写,FileReader,小练习 JAVA之旅林林总总也是写了二十多篇了,我们今天终于是接触到了I/O了 ...
- 谈谈Ext JS的组件——布局的使用方法
概述 在Ext JS中,包含两类布局:组件类布局和容器类布局.由于有些组件是有不同的组件组合而成的,如字段就由标题和输入框构成,他们之间也是存在布局关系的,而这就需要组件类布局来处理组件内自己特有的布 ...
- OJ题：字符串分隔
题目描述 •连续输入字符串,请按长度为8拆分每个字符串后输出到新的字符串数组:•长度不是8整数倍的字符串请在后面补数字0,空字符串不处理. 输入描述: 连续输入字符串(输入2次,每个字符串长度小于10 ...
- java线程池ThreadPoolExecutor 如何与 AsyncTask() 组合使用
简单说下Executors类,提供的一系列创建线程池的方法: 他们都有两个构造方法 1. --------newFixedThreadPool (创建一个定长线程池,可控制线程最大并发数,超出的线程会 ...
- Java实现简易的文件的迁移器
Java作为世界上最受欢迎的一门编程语言,自然是有原因的.比如说我们可以直接的方便的调用其中的函数来实现我们想要的功能. 一个偶然的机会,我浏览API文档时发现了一个名为FileDialog的类,然后 ...
- java中，用json格式转换遇到问题
将list转为JSONObject类,报 org/apache/commons/lang/exception/NestableRuntimeException是什么原因? 还需要导入这些包common ...
- 【翻译】Ext JS 5的平板支持
原文:Ext JS 5 Tablet Support Ext JS已被公认为桌面Web应用程序的领先框架.自从平板开始在全球挑战PC的销售,无论是个人还是企业,电脑横向的应用已经产生急剧的变化.Sen ...
- （十二）UITableView的基本使用
UITableView之所以支持滚动,是因为继承自UIScrollView.默认是垂直滚动,性能极佳. UITableView的两种样式: 1.UITableViewStylePlain ...
- 在自己的服务器上安装GitBook
更新时间:2016-08-05 更新说明: 由于在 Linux 内核的机器上安装 Calibre 需要安装的依赖库过多,故不推荐在此类机器上使用格式转换功能.你可以阅读 在自己的电脑上安装GitBoo ...