import java.sql.Connection
import java.sql.DriverManager
import java.sql.PreparedStatement
import java.sql.ResultSet
import java.sql.SQLException
//新建一个java类把公有的东西都抽出来,方便扩展节省代码。==20130120又练习的。
public class MyJdbc {
// 拿到连接的对象。
public Connection getConnection() {
// String driver =
// "com.mysql.jdbc.Driver"//因为现在不需要forClass映射驱动了,所以这个也可不要了。
String url = "jdbc:mysql://localhost:3306/mysql0120"// 数据库名mysql0120
String user = "root"// 数据库登陆用户
String password = "root2"// 数据库登陆密码
Connection con = null
try {
con = DriverManager.getConnection(url, user, password)// 那四句加这句就行了。
} catch (SQLException e) {
e.printStackTrace()
}
return con// 调这个方法就返回一个连接
}
// insert delete update===========-=-==增加,删除,更改都用这个通用方法=================
// 直接把sql语句和需要的参数(因为多个,所以用数组存)传过来。
public int update(String sql, Object[] parms) {
int row = 0
Connection con = this.getConnection()
PreparedStatement ps = null
try {
ps = con.prepareStatement(sql)
if (parms != null) {
for (int i = 0i <parms.lengthi++) {
ps.setObject(i + 1, parms[i])// 注意是i+1【从第一行算的】
}
}
row = ps.executeUpdate()// 返回影响的行数
} catch (SQLException e) {
e.printStackTrace()
} finally {
this.closeAll(con, ps, null)// 这不是查询【所以结果集是null】。
}
return row
}
// 所有关闭也是一样的,所以通用这个关闭方法。===-==========关闭==========
public void closeAll(Connection con, PreparedStatement ps, ResultSet rs) {
try {
if (rs != null)
rs.close()
if (ps != null)
ps.close()
if (con != null)
con.close()
} catch (SQLException e) {
e.printStackTrace()
}
}
}
首先定义一个MySQL存储过程:DROP PROCEDURE IF EXISTS test
CREATE PROCEDURE test (IN p1 VARCHAR(26), OUT pResult VARCHAR(512))
BEGIN
SET pResult := NULL
SET pResult :=CONCAT ( 'test',p1)
SELECT * FROM tb2 WHERE commet like Concat('%',p1, '%')-- this 返回一个结果集
END
tb2的表结构和数据如下:
DROP TABLE IF EXISTS `tb2`
CREATE TABLE `tb2` (
`t_id` int(10) NOT NULL AUTO_INCREMENT COMMENT '主键',
`Name` varchar(255) DEFAULT NULL COMMENT '字段名',
`type` int(1) DEFAULT NULL COMMENT '类型,0-正常,1-异常,2-传输,3-退单',
`commet` varchar(255) DEFAULT NULL COMMENT '备注',
`optime` timestamp NULL DEFAULT NULL ON UPDATE CURRENT_TIMESTAMP COMMENT ' *** 作时间',
PRIMARY KEY (`t_id`)
)
继续增加新的类:
Stb2.Java内容:
package com.springdemo.usermgr.vo
import java.util.Date
/**
* tb2表实体类
* @author zhouxj
* @date 2014-09-10 下午03:29:32
*/
public class Stb2{
private Integer t_id
private String name
private Integer type
private String commet
private java.util.Date optime
public Integer getT_id() {
return t_id
}
public void setT_id(Integer t_id) {
this.t_id = t_id
}
public String getName() {
return name
}
public void setName(String name) {
this.name = name
}
public Integer getType() {
return type
}
public void setType(Integer type) {
this.type = type
}
public String getCommet() {
return commet
}
public void setCommet(String commet) {
this.commet = commet
}
public java.util.Date getOptime() {
return optime
}
public void setOptime(java.util.Date optime) {
this.optime = optime
}
}
修改SUserMapper.java内容:
package com.springdemo.usermgr.vo
import java.util.List
import java.util.Map
public interface SUserMapper {
public int insertSUser(SUser user)
public SUser getSUser(String name)
public List<Stb2>getTestProc(Map<String, Object>param)
}
Test2测试类内容:
package domain
import java.io.IOException
import java.io.Reader
import java.util.HashMap
import java.util.List
import java.util.Map
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.springdemo.usermgr.vo.SUserMapper
import com.springdemo.usermgr.vo.Stb2
public class Test2 {
public static void main(String[] args) throws IOException {
String resource = "config.xml"
Reader reader = Resources.getResourceAsReader(resource)
SqlSessionFactory ssf = new SqlSessionFactoryBuilder().build(reader)
SqlSession session = ssf.openSession(true)//true 为自动提交事务
try {
Map<String, Object>parms = new HashMap<String, Object>()
parms.put("queryStr", "的")
SUserMapper spMapper = session.getMapper(SUserMapper.class)
List<Stb2>as=spMapper.getTestProc(parms)
String outPara=(String) parms.get("retStr")
System.out.println(outPara)
System.out.println(as.toString())
//org.apache.ibatis.type.JdbcType.VARCHAR
// org.apache.ibatis.mapping.ParameterMode.OUT
} catch (Exception e) {
e.printStackTrace()
} finally {
session.close()
}
}
}
config.xml配置文件修改内容:
<?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>
<typeAliases>
<typeAlias alias="SUser" type="com.springdemo.usermgr.vo.SUser" />
<typeAlias alias="Stb2" type="com.springdemo.usermgr.vo.Stb2" />
</typeAliases>
<environments default="development">
<environment id="development">
<transactionManager type="JDBC" />
<dataSource type="POOLED">
<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="pass" />
</dataSource>
</environment>
</environments>
<mappers>
<mapper resource="SUser.xml" />
<mapper resource="Stb2.xml" />
</mappers>
</configuration>
增加配置文件Stb2.xml:
<?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.springdemo.usermgr.vo.SUserMapper">
<resultMap type="com.springdemo.usermgr.vo.Stb2" id="itemResult">
</resultMap>
<select id="getTestProc" parameterType="java.util.Map" statementType="CALLABLE"
resultMap="itemResult">
{call test.test(
#{queryStr,jdbcType=VARCHAR,mode=IN},
#{retStr,jdbcType=VARCHAR,mode=OUT})
}
</select>
</mapper>
运行Test2类,可能的结果:
test的
[com.springdemo.usermgr.vo.Stb2@6900bf61, com.springdemo.usermgr.vo.Stb2@3014af22]
返回了参数内容,和两条记录。
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