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
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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
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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
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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
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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)
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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）
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<?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）
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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）
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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
以上所述是小编给大家介绍的MyBatis创建存储过程的实例代码_动力节点Java学院整理，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对服务器之家网站的支持！
