标签：test arc open iba param address mysql org ip地址
关于maven的使用网上有太多教程，这里就不再介绍。本篇文章只用来记录 在Eclipse中使用maven创建含有mybatis的程序的配置，及注意事项。
创建后的目录结构如上，这里建的不是web项目使用的是maven的quickstart模板
创建后在pom.xml文件中添加mybatis和mysql的依赖
create table User(
UserName varchar(50) primary key,
UserPwd varchar(50) not null,
UserMail varchar(50) ,
UserAddress varchar(50)
);
代码如下
package com.ws.dao;
public class User {
private String UserName;
private String UserPwd;
private String UserMail;
private String UserAddress;
public User(String UserName,String UserPwd,String UserMail,String UserAddress){
this.UserName=UserName;
this.UserPwd=UserPwd;
this.UserMail=UserMail;
this.UserAddress=UserAddress;
}
public User(){
}
public String getUserName() {
return UserName;
}
public void setUserName(String userName) {
UserName = userName;
}
public String getUserPwd() {
return UserPwd;
}
public void setUserPwd(String userPwd) {
UserPwd = userPwd;
}
public String getUserMail() {
return UserMail;
}
public void setUserMail(String userMail) {
UserMail = userMail;
}
public String getUserAddress() {
return UserAddress;
}
public void setUserAddress(String userAddress) {
UserAddress = userAddress;
}
public String toString(){
return getUserName()+" "+getUserPwd()+" "+getUserMail()+" "+getUserAddress();
}
}package com.ws.dao;
import com.ws.dao.User;
import org.apache.ibatis.annotations.Param;
public interface UserMapper {
public void insertUser(User user);
public User selectUser(@Param(value="userName") String userName);
}添加全局配置文件mybatis-config.xml
这里有一些需要注意的内容，首先是 DOCTYPE元素，后面的configuration 对应着这是一个管理配置，它与后面的mapper的配置是有区别的，在复制XML文件的时候需要注意
还有关于mysql数据库的链接配置，在 url的value中 如果自己的mysql设置的不是允许远程访问的，那么就不要直接使用ip地址，否则运行时会报错，这里写的是localhost。
mappers元素则对应着后面的Mapper接口的配置，不要忘记添加，不然 运行时也会报错。
<?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="UNPOOLED">
<property name="driver" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/test" />
<property name="username" value="root" />
<property name="password" value="123456" />
</dataSource>
</environment>
</environments>
<mappers>
<mapper resource="User.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.ws.dao.UserMapper">
<select id="selectUser" resultType="com.ws.dao.User">
select * from user where UserName=#{userName}
</select>
<insert id="insertUser" parameterType="com.ws.dao.User">
insert into
User (UserName,UserPwd,UserMail,UserAddress)
values(#{UserName},#{UserPwd},#{UserMail},#{UserAddress})
</insert>
</mapper>
package com.ws.LearnMybatis;
import java.io.Reader;
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 com.ws.dao.User;
import com.ws.dao.UserMapper;
/**
* Hello world!
*
*/
public class App
{
public static void main( String[] args )
{
SqlSession session=null;
try{
String resource="mybatis-config.xml";
Reader reader=null;
reader=Resources.getResourceAsReader(resource);
SqlSessionFactory sqlSessionFactory=new SqlSessionFactoryBuilder().build(reader);
session=sqlSessionFactory.openSession();
UserMapper userMapper=session.getMapper(UserMapper.class);
User user=userMapper.selectUser("xiaohong");
session.commit();
System.out.println(user.toString());
user=new User("xiaogang","11111","123@123","shanghai");
userMapper.insertUser(user);
session.commit();
}catch (Exception e){
e.printStackTrace();
}finally {
session.close();
}
}
}
标签：test arc open iba param address mysql org ip地址
原文地址：http://www.cnblogs.com/CodingUniversal/p/7865548.html
