Merge branch 'master' of https://github.com/JonCook/tutorials

mybatis/.gitignore

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+*.class
+
+.settings
+.project
+*.log
+
+#folders#
+/target
+/src/main/webapp/WEB-INF/classes
+*/META-INF/*
+/testdb1
+
+# Packaged files #
+*.jar
+*.war
+*.ear

mybatis/README.md

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+## MyBatis
+
+This module contains articles about MyBatis.
+
+### Relevant Articles: 
+- [Quick Guide to MyBatis](https://www.baeldung.com/mybatis)

mybatis/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.baeldung</groupId>
+    <artifactId>mybatis</artifactId>
+    <version>1.0.0-SNAPSHOT</version>
+	<name>mybatis</name>
+	
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.derby</groupId>
+            <artifactId>derby</artifactId>
+            <version>${derby.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.mybatis</groupId>
+            <artifactId>mybatis</artifactId>
+            <version>${mybatis.version}</version>
+        </dependency>
+    </dependencies>
+
+    <properties>
+        <derby.version>10.13.1.1</derby.version>
+        <mybatis.version>3.2.2</mybatis.version>
+    </properties>
+
+</project>

mybatis/src/main/java/com/baeldung/mybatis/mapper/AddressMapper.java

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+package com.baeldung.mybatis.mapper;
+
+import com.baeldung.mybatis.model.Address;
+import com.baeldung.mybatis.model.Person;
+import org.apache.ibatis.annotations.*;
+
+public interface AddressMapper {
+
+	@Insert("Insert into address (streetAddress,personId) values(#{streetAddress},#{personId})")
+	@Options(useGeneratedKeys = true, flushCache = true)
+	public Integer saveAddress(Address address);
+
+	@Select("SELECT addressId, streetAddress FROM Address WHERE addressId = #{addressId}")
+	@Results(value = { @Result(property = "addressId", column = "addressId"),
+			@Result(property = "streetAddress", column = "streetAddress"),
+			@Result(property = "person", column = "personId", javaType = Person.class, one = @One(select = "getPerson")) })
+	Address getAddresses(Integer addressID);
+
+	@Select("SELECT personId FROM address WHERE addressId = #{addressId})")
+	Person getPerson(Integer personId);
+}

mybatis/src/main/java/com/baeldung/mybatis/mapper/PersonMapper.java

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+package com.baeldung.mybatis.mapper;
+
+import com.baeldung.mybatis.model.Address;
+import com.baeldung.mybatis.model.Person;
+import com.baeldung.mybatis.utils.MyBatisUtil;
+import org.apache.ibatis.annotations.*;
+import org.apache.ibatis.mapping.StatementType;
+
+import java.util.List;
+import java.util.Map;
+
+public interface PersonMapper {
+
+	@Insert("Insert into person(name) values (#{name})")
+	public Integer save(Person person);
+
+	@Update("Update Person set name= #{name} where personId=#{personId}")
+	public void updatePerson(Person person);
+
+	@Delete("Delete from Person where personId=#{personId}")
+	public void deletePersonById(Integer personId);
+
+	@Select("SELECT person.personId, person.name FROM person WHERE person.personId = #{personId}")
+	Person getPerson(Integer personId);
+
+	@Select("Select personId,name from Person where personId=#{personId}")
+	@Results(value = { @Result(property = "personId", column = "personId"), @Result(property = "name", column = "name"),
+			@Result(property = "addresses", javaType = List.class, column = "personId", many = @Many(select = "getAddresses"))
+
+	})
+	public Person getPersonById(Integer personId);
+
+	@Select("select addressId,streetAddress,personId from address where personId=#{personId}")
+	public Address getAddresses(Integer personId);
+
+	@Select("select * from Person ")
+	@MapKey("personId")
+	Map<Integer, Person> getAllPerson();
+
+	@SelectProvider(type = MyBatisUtil.class, method = "getPersonByName")
+	public Person getPersonByName(String name);
+
+	@Select(value = "{ CALL getPersonByProc( #{personId, mode=IN, jdbcType=INTEGER})}")
+	@Options(statementType = StatementType.CALLABLE)
+	public Person getPersonByProc(Integer personId);
+
+}

mybatis/src/main/java/com/baeldung/mybatis/model/Address.java

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+package com.baeldung.mybatis.model;
+
+public class Address {
+
+	private Integer addressId;
+	private String streetAddress;
+	private Integer personId;
+
+	public Address() {
+	}
+
+	public Integer getPersonId() {
+		return personId;
+	}
+
+	public void setPersonId(Integer personId) {
+		this.personId = personId;
+	}
+
+	public Address(String streetAddress) {
+		this.streetAddress = streetAddress;
+	}
+
+	public Person getPerson() {
+		return person;
+	}
+
+	public void setPerson(Person person) {
+		this.person = person;
+	}
+
+	private Person person;
+
+	public Address(int i, String name) {
+		this.streetAddress = name;
+	}
+
+	public Integer getAddressId() {
+		return addressId;
+	}
+
+	public String getStreetAddress() {
+		return streetAddress;
+	}
+
+}

mybatis/src/main/java/com/baeldung/mybatis/model/Person.java

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+package com.baeldung.mybatis.model;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class Person {
+
+	private Integer personId;
+	private String name;
+	private List<Address> addresses;
+
+	public Person() {
+	}
+
+	public Person(Integer personId, String name) {
+		this.personId = personId;
+		this.name = name;
+		addresses = new ArrayList<Address>();
+	}
+
+	public Person(String name) {
+		this.name = name;
+	}
+
+	public Integer getPersonId() {
+		return personId;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void addAddress(Address address) {
+		addresses.add(address);
+	}
+
+	public List<Address> getAddresses() {
+		return addresses;
+	}
+}

mybatis/src/main/java/com/baeldung/mybatis/utils/MyBatisUtil.java

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+package com.baeldung.mybatis.utils;
+
+import com.baeldung.mybatis.mapper.AddressMapper;
+import com.baeldung.mybatis.mapper.PersonMapper;
+import org.apache.ibatis.datasource.pooled.PooledDataSource;
+import org.apache.ibatis.jdbc.SQL;
+import org.apache.ibatis.mapping.Environment;
+import org.apache.ibatis.session.Configuration;
+import org.apache.ibatis.session.SqlSessionFactory;
+import org.apache.ibatis.session.SqlSessionFactoryBuilder;
+import org.apache.ibatis.transaction.jdbc.JdbcTransactionFactory;
+
+import javax.sql.DataSource;
+
+public class MyBatisUtil {
+	public static final String DRIVER = "org.apache.derby.jdbc.EmbeddedDriver";
+	public static final String URL = "jdbc:derby:testdb1;create=true";
+	public static final String USERNAME = "sa";
+	public static final String PASSWORD = "pass123";
+	private static SqlSessionFactory sqlSessionFactory;
+
+	public static SqlSessionFactory buildqlSessionFactory() {
+		DataSource dataSource = new PooledDataSource(DRIVER, URL, USERNAME, PASSWORD);
+		Environment environment = new Environment("Development", new JdbcTransactionFactory(), dataSource);
+		Configuration configuration = new Configuration(environment);
+		configuration.addMapper(PersonMapper.class);
+		configuration.addMapper(AddressMapper.class);
+		SqlSessionFactoryBuilder builder = new SqlSessionFactoryBuilder();
+		SqlSessionFactory factory = builder.build(configuration);
+		return factory;
+
+	}
+
+	public static SqlSessionFactory getSqlSessionFactory() {
+		return sqlSessionFactory;
+	}
+
+	public String getPersonByName(String name) {
+		return new SQL() {
+			{
+				SELECT("*");
+				FROM("person");
+				WHERE("name like #{name} || '%'");
+			}
+		}.toString();
+	}
+}

mybatis/src/main/resources/logback.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
+            </pattern>
+        </encoder>
+    </appender>
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>