MyBatis创建存储过程的实例代码_动力节点Java学院整理

所需要用到的其他工具或技术:

项目管理工具 : Maven

测试运行工具 : Junit

数据库 : Derby

本节需要用到的有2部分，第一部分是如何在Derby中创建存储过程，第二部分是如何在Mybatis中调用存储过程

一. 在Derby中创建存储过程

在Eclipse中创建一个新的普通Java项目命名为Test_Store_Procedure

在com.bjpowernode.practice包下创建一个Class命名为StoreProcedureOperationClass.class

package com.bjpowernode.practice;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
/**
 *
 * 存储过程类
 *
 * @author Freud
 *
 */
public class StoreProcedureOperationClass
{
  /**
   *
   * 执行插入的存储过程
   *
   * @param id
   * @param username
   * @param password
   * @param nickname
   * @throws SQLException
   */
  public static void insertData(int id, String username, String password, String nickname) throws SQLException
  {
    Connection connection = DriverManager.getConnection("jdbc:default:connection");
    PreparedStatement p =
        connection.prepareStatement("INSERT INTO USER_TEST_TB(ID,USERNAME,PASSWORD,NICKNAME) VALUES(?,?,?,?)");
    p.setInt(1, id);
    p.setString(2, username);
    p.setString(3, password);
    p.setString(4, nickname);
    System.out.println("INSERT VALUES (id=" + id + ",username=" + username + ",password=" + password + ",nickname="
        + nickname + ")");
    p.executeUpdate();
    p.close();
    connection.close();
  }
} 

3. 利用jar命令或者Eclipse工具导出到C:\freud\Test_Store_Procedure.jar

4. 在ij命令行中声明存储过程

CREATE PROCEDURE FREUD.INSERT_USER(IN THE_ID INTEGER,
         IN THE_USERNAME VARCHAR(20), IN THE_PASSWORD VARCHAR(20), IN THE_NICKNAME VARCHAR(20))
PARAMETER STYLE JAVA MODIFIES SQL DATA LANGUAGE JAVA
EXTERNAL NAME 'com.bjpowernode.practice.StoreProcedureOperationClass.insertData';
 在 ij 控制台中调用call sqlj.install_jar('C:\freud\Test_Store_Procedure.jar', 'FREUD.TEST_SPROCEDURE', 0);将 jar 包导入到 FREUD模式中，并命名为TEST_SPROCEDURE。

6. 在 ij 控制台中调用call SYSCS_UTIL.SYSCS_SET_DATABASE_PROPERTY('derby.database.classpath', 'FREUD.TEST_SPROCEDURE'); 将 jar 包加入到数据库 classpath 搜索路径中。

这样，Derby的存储过程就算创建完成了

二.在Mybatis中调用存储过程

Maven Dependencies:
<dependencies>
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>3.2.7</version>
    </dependency>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.9</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>org.apache.derby</groupId>
      <artifactId>derby</artifactId>
      <version>10.10.2.0</version>
    </dependency>
    <dependency>
      <groupId>org.apache.derby</groupId>
      <artifactId>derbyclient</artifactId>
      <version>10.10.2.0</version>
    </dependency>
  </dependencies> 

Mybatis配置文件 src/main/resource源目录下

test-mybatis-configuration.xml
<?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>
  <properties>
    <property name="driver" value="org.apache.derby.jdbc.ClientDriver" />
    <property name="url"
      value="jdbc:derby://localhost:1527/freud;create=true" />
  </properties>
  <environments default="development">
    <environment id="development">
      <transactionManager type="JDBC" />
      <dataSource type="POOLED">
        <property name="driver" value="${driver}" />
        <property name="url" value="${url}" />
      </dataSource>
    </environment>
  </environments>
  <mappers>
    <mapper resource="com/freud/practice/UserMapper.xml" />
  </mappers>
</configuration>  

User.java对象类(src/main/java/com/freud/practice目录下)

package com.bjpowernode.practice;
public class User
{
  private Integer id;
  private String username;
  private String password;
  private String nickname;
  public Integer getId()
  {
    return id;
  }
  public void setId(Integer id)
  {
    this.id = id;
  }
  public String getUsername()
  {
    return username;
  }
  public void setUsername(String username)
  {
    this.username = username;
  }
  public String getPassword()
  {
    return password;
  }
  public void setPassword(String password)
  {
    this.password = password;
  }
  public String getNickname()
  {
    return nickname;
  }
  public void setNickname(String nickname)
  {
    this.nickname = nickname;
  }
} 

UserMapper.xml  Mapper文件（src/main/java/com.bjpowernode.practice目录下）

<?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.bjpowernode.practice.UserMapper">
  <!-- 查询 -->
  <select id="getUser" resultType="com.bjpowernode.practice.User">
    select *
    from USER_TEST_TB
  </select>
  <!-- 调用插入的存储过程 -->
  <insert id="insertUser" statementType="CALLABLE">
    CALL FREUD.INSERT_USER(#{id},#{username},#{password},#{nickname})
  </insert>
</mapper>  

UserMapper.java Mapper类（src/main/java/com.bjpowernode.practice目录下）

package com.bjpowernode.practice;
import java.util.List;
public interface UserMapper
{
  public List<User> getUser();
  public void insertUser(User user); 

} 

测试类TestMyBatis.java（src/test/java/com.bjpowernode.practice目录下）

package com.bjpowernode.practice;
import java.io.InputStream;
import java.text.MessageFormat;
import java.util.List;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import org.junit.Before;
import org.junit.Test;
public class TestMyBatis
{
  private String source;
  private InputStream inputStream;
  private SqlSessionFactory sqlSessionFactory;
  @Before
  public void setUp()
  {
    /**
     * 准备Mybatis运行环境
     */
    source = "test-mybatis-configuration.xml";
    inputStream = TestMyBatis.class.getClassLoader().getResourceAsStream(source);
    sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
  }
  @Test
  public void testInsert()
  {
    try
    {
      // 获取Session连接
      SqlSession session = sqlSessionFactory.openSession();
      // 获取Mapper
      UserMapper userMapper = session.getMapper(UserMapper.class);
      System.out.println("Test insert start...");
      // 显示插入之前User信息
      System.out.println("Before insert");
      this.printUsers(userMapper.getUser());
      // 执行插入
      userMapper.insertUser(this.mockUser("FREU_INS_USER", "FREUD_INS_PASS", "FREUD_INS_NICK"));
      // 提交事务
      session.commit();
      // 显示插入之后User信息
      System.out.println("\r\nAfter insert");
      this.printUsers(userMapper.getUser());
      System.out.println("Test insert finished...");
    }
    catch (Exception e)
    {
      e.printStackTrace();
    }
  }
  /**
   *
   * 组装一个User对象
   *
   * @return
   */
  public User mockUser(String username, String password, String nickname)
  {
    User user = new User();
    user.setId(50);
    user.setUsername(username);
    user.setPassword(password);
    user.setNickname(nickname);
    return user;
  }
  /**
   *
   * 打印用户信息到控制台
   *
   * @param users
   */
  private void printUsers(final List<User> users)
  {
    int count = 0;
    for (User user : users)
    {
      System.out.println(MessageFormat.format("==User[{0}]=================", ++count));
      System.out.println("User Id: " + user.getId());
      System.out.println("User UserName: " + user.getUsername());
      System.out.println("User Password: " + user.getPassword());
      System.out.println("User nickname: " + user.getNickname());
    }
  }
} 

总结

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