Rhythmk 一步一步学 JAVA（11）Ibatis 环境配置

package com.rhythmk.example1;

import java.io.IOException;
import java.io.Reader;
import java.sql.SQLException;
import java.util.List;
import com.ibatis.common.resources.Resources;
import com.ibatis.sqlmap.client.SqlMapClient;
import com.ibatis.sqlmap.client.SqlMapClientBuilder;

public class example1 {

private static String resource = "com\\rhythmk\\example1\\SqlMapConfig.xml";
private static SqlMapClient sqlMapClient = null;
static {
System.out.println(System.getProperty("user.dir"));
try {
Reader reader = Resources.getResourceAsReader(resource);
sqlMapClient = SqlMapClientBuilder.buildSqlMapClient(reader);
reader.close();
} catch (IOException e) {
e.printStackTrace();
}
}

public static void main(String[] args) {
// TODO Auto-generated method stub

GetAllUser();

GetUserById(1);
}

/*
* 根据ID 获取User
*/
public static void GetUserById(Integer id) {
User user = null;
try {

sqlMapClient.startTransaction();

user = (User) sqlMapClient.queryForObject("selectById",
new Integer("1"));
System.out.println(user.getName());
sqlMapClient.commitTransaction();
} catch (Exception e) {
e.printStackTrace();
}
}

public static void GetAllUser() {
List<User> list = null;
try {

list = (List<User>) sqlMapClient.queryForList("selectAll");
for (User user : list) {
System.out.println(user.getId() + "," + user.getName());
}

} catch (Exception e) {
e.printStackTrace();
}

}

}

package com.rhythmk.example1;

public class User {

public int getId() {
return Id;
}
public void setId(int id) {
Id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return Age;
}
public void setAge(int age) {
Age = age;
}
private int Id;
private String  name;
private int Age;

}

driver=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/test
username=root
password=rhythmk

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE sqlMapConfig
PUBLIC "-//ibatis.apache.org//DTD SQL Map Config 2.0//EN"
"http://ibatis.apache.org/dtd/sql-map-config-2.dtd">
<sqlMapConfig>
<!-- 数据库连接的属性文件 -->
<properties resource="com\rhythmk\example1\SqlMap.properties" />

<transactionManager type="JDBC"><!-- type：定义了ibatis的事务管理器有3种，JDBC、JTA、EXTERNAL -->
<dataSource type="SIMPLE"><!-- type属性指定了数据源的连接类型有3种，SIMPLE、DBCP、JNDI -->
<property value="${driver}" name="JDBC.Driver" />
<property value="${url}" name="JDBC.ConnectionURL" />
<property value="${username}" name="JDBC.Username" />
<property value="${password}" name="JDBC.Password" />
</dataSource>
</transactionManager>

<!-- 实体类和数据库表的映射 -->
<sqlMap resource="com\rhythmk\example1\User.xml" />

</sqlMapConfig>

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE sqlMap
PUBLIC "-//ibatis.apache.org//DTD SQL Map 2.0//EN"
"http://ibatis.apache.org/dtd/sql-map-2.dtd">
<sqlMap>
<typeAlias alias="User" type="com.rhythmk.example1.User" />
<!-- 查询所有记录  -->
<select resultClass="User" id="selectAll">
SELECT  id, name ,age   from  `user`
</select>

<!-- 精确查询 按照条件查询记录  按照部门编号DEPTNO查询 -->
<select parameterClass="int" resultClass="User" id="selectById">
SELECT  id, name ,age   from  `user` where id=#id#
</select>
</sqlMap>

CREATE TABLE `user` (
`Id` int(11) NOT NULL,
`Name` varchar(32) CHARACTER SET utf8 NOT NULL,
`Age` int(11) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;