Latest chapter01 code merged.

Author: sivaprasadreddy

chapter01/pom.xml

@@ -21,7 +21,7 @@
 		<logback.version>1.0.1</logback.version>
 		<log4j.version>1.2.16</log4j.version>
 		<mybatis.version>3.1.1</mybatis.version>
-		<mysql.version>5.1.22</mysql.version>
+		<mysql.version>5.1.18</mysql.version>
 		<maven.compiler.plugin>2.3.2</maven.compiler.plugin>
 	</properties>
 

chapter01/src/main/java/com/mybatis3/mappers/StudentMapper.java

@@ -16,8 +16,6 @@ public interface StudentMapper
 
 	Student findStudentById(Integer id);
 
-	Student findStudentByEmail(String email);
-
 	void insertStudent(Student student);
 
 	void updateStudent(Student student);

chapter01/src/main/java/com/mybatis3/services/JdbcStudentService.java

@@ -19,7 +19,7 @@ public class JdbcStudentService
 {
 
 	private static final String DRIVER = "com.mysql.jdbc.Driver";
-	private static final String URL = "jdbc:mysql://localhost:3306";
+	private static final String URL = "jdbc:mysql://localhost:3306/elearning";
 	private static final String USERNAME = "root";
 	private static final String PASSWORD = "admin";
 
@@ -32,7 +32,7 @@ public static void main(String[] args)
 		System.out.println(existingStudent);
 
 
-		/*long ts = System.currentTimeMillis();//For creating unique student names
+		long ts = System.currentTimeMillis();//For creating unique student names
 		Student newStudent = new Student(0,"student_"+ts,"student_"+ts+"@gmail.com",new Date());
 		service.createStudent(newStudent);
 		System.out.println(newStudent);
@@ -42,7 +42,7 @@ public static void main(String[] args)
 		ts = System.currentTimeMillis();//For creating unique student email
 		updateStudent.setEmail("student_"+ts+"@gmail.com");
 		service.updateStudent(updateStudent);
-		*/
+		
 	}
 
 	public Student findStudentById(int studId)
@@ -52,7 +52,7 @@ public Student findStudentById(int studId)
 		try
 		{
 			conn = getDatabaseConnection();
-			String sql = "select * from elearning.students where stud_id=?";
+			String sql = "select * from students where stud_id=?";
 			PreparedStatement pstmt = conn.prepareStatement(sql);
 			pstmt.setInt(1, studId);
 			ResultSet rs = pstmt.executeQuery();

chapter01/src/main/java/com/mybatis3/services/StudentService.java

@@ -35,20 +35,9 @@ public Student findStudentById(Integer studId)
 		logger.debug("Select Student By ID :{}", studId);
 		SqlSession sqlSession = MyBatisSqlSessionFactory.getSqlSession();
 		try {
-			//Student student = sqlSession.selectOne("com.mybatis3.StudentMapper.findStudentById", studId);
 			StudentMapper studentMapper = sqlSession.getMapper(StudentMapper.class);
 			return studentMapper.findStudentById(studId);
-		} finally {
-			sqlSession.close();
-		}
-	}
-	
-	public Student findStudentByEmail(String email)
-	{
-		SqlSession sqlSession = MyBatisSqlSessionFactory.getSqlSession();
-		try {
-			StudentMapper studentMapper = sqlSession.getMapper(StudentMapper.class);
-			return studentMapper.findStudentByEmail(email);
+			//return sqlSession.selectOne("com.mybatis3.StudentMapper.findStudentById", studId);
 		} finally {
 			sqlSession.close();
 		}

chapter01/src/main/java/com/mybatis3/util/MyBatisSqlSessionFactory.java

@@ -14,10 +14,13 @@
  */
 public class MyBatisSqlSessionFactory
 {
-	private static SqlSessionFactory sqlSessionFactory = initSqlSessionFactory();
+	private static SqlSessionFactory sqlSessionFactory;
 
-	private static SqlSessionFactory initSqlSessionFactory() {
-		InputStream inputStream;
+	public static SqlSessionFactory getSqlSessionFactory()
+	{
+		if(sqlSessionFactory==null) 
+		{
+			InputStream inputStream;
 			try
 			{
 				inputStream = Resources.getResourceAsStream("mybatis-config.xml");
@@ -26,14 +29,12 @@ private static SqlSessionFactory initSqlSessionFactory() {
 			{
 				throw new RuntimeException(e.getCause());
 			}
+		}
 		return sqlSessionFactory;
 	}
 
-	public static SqlSessionFactory getSqlSessionFactory() {
-		return sqlSessionFactory;
-	}
-	
-	public static SqlSession getSqlSession() {
+	public static SqlSession getSqlSession() 
+	{
 		return getSqlSessionFactory().openSession();
 	}
 }

chapter01/src/main/resources/application.properties

@@ -4,8 +4,5 @@
 
 jdbc.driverClassName=com.mysql.jdbc.Driver
 jdbc.url=jdbc:mysql://localhost:3306/elearning
-#jdbc.url=jdbc:mysql://localhost:3306
 jdbc.username=root
 jdbc.password=admin
-
-schemaname=elearning

chapter01/src/main/resources/com/mybatis3/mappers/StudentMapper.xml

@@ -17,11 +17,7 @@
   	</select>
 
   	<select id="findStudentById" parameterType="int" resultType="Student">
-    	select stud_id as studId, name, email, dob from ${schemaname}.Students where stud_id=#{studId}
-  	</select>
-  	
-  	<select id="findStudentByEmail" parameterType="String" resultType="Student">
-    	select stud_id as studId, name, email, dob from Students where email=#{email}
+    	select stud_id as studId, name, email, dob from Students where stud_id=#{studId}
   	</select>
 
   	<insert id="insertStudent" parameterType="Student">

chapter01/src/main/resources/mybatis-config.xml

@@ -7,7 +7,6 @@
 	  <properties resource="application.properties"/>
 
 	  <typeAliases>
-	  	<typeAlias alias="Student" type="com.mybatis3.domain.Student"/>
 	  	<package name="com.mybatis3.domain"/>
 	  </typeAliases>
 

chapter01/src/test/java/com/mybatis3/services/StudentServiceTest.java

@@ -32,7 +32,7 @@ public static void teardown()
 		studentService = null;
 	}
 
-	//@Test
+	@Test
     public void testFindAllStudents() 
 	{
 		List<Student> students = studentService.findAllStudents();
@@ -52,14 +52,6 @@ public void testFindStudentById()
 		System.out.println(student);
 	}
 
-	//@Test
-    public void testFindStudentByEmail() 
-	{
-		Student student = studentService.findStudentByEmail("student_1gmail.com");
-		Assert.assertNotNull(student);
-		System.out.println(student);
-	}
-	
 	@Test
 	@Ignore
 	public void testCreateUStudent() 
@@ -76,7 +68,7 @@ public void testCreateUStudent()
 	}
 
 	@Test
-	@Ignore
+	//@Ignore
 	public void testUpdateStudent() 
 	{
 		int id = 3;