Spring(十五)之声明式事务

CREATE TABLE Student(
   ID   INT NOT NULL AUTO_INCREMENT,NAME VARCHAR(20) NOT NULL,AGE  INT NOT NULL,PRIMARY KEY (ID)
);

CREATE TABLE Marks(
   SID INT NOT NULL,MARKS  INT NOT NULL,YEAR   INT NOT NULL
);

package com.tutorialspoint;
public class StudentMarks {
   private Integer age;
    String name;
    Integer id;
    Integer marks;
    Integer year;
    Integer sid;
   void setAge(Integer age) {
      this.age = age;
   }
   public Integer getAge() {
      return setName(String name) {
      this.name = name;
   }
    String getName() {
       setId(Integer id) {
      this.id = id;
   }
    Integer getId() {
       setMarks(Integer marks) {
      this.marks = marks;
   }
    Integer getMarks() {
       setYear(Integer year) {
      this.year = year;
   }
    Integer getYear() {
       setSid(Integer sid) {
      this.sid = sid;
   }
    Integer getSid() {
       sid;
   }
}

import java.util.List;
 javax.sql.DataSource;
interface StudentDAO {
   /** 
    * This is the method to be used to initialize
    * database resources ie. connection.
    */
    setDataSource(DataSource ds);
    
    * This is the method to be used to create
    * a record in the Student and Marks tables.
     create(String name,Integer age,Integer marks,Integer year);
    
    * This is the method to be used to list down
    * all the records from the Student and Marks tables.
    public List<StudentMarks> listStudents();
}

 java.sql.ResultSet;
 java.sql.SQLException;
 org.springframework.jdbc.core.RowMapper;
class StudentMarksMapper implements RowMapper<StudentMarks> {
   public StudentMarks mapRow(ResultSet rs,int rowNum) throws SQLException {
      StudentMarks studentMarks = new StudentMarks();
      studentMarks.setId(rs.getInt("id"));
      studentMarks.setName(rs.getString("name"));
      studentMarks.setAge(rs.getInt("age"));
      studentMarks.setSid(rs.getInt("sid"));
      studentMarks.setMarks(rs.getInt("marks"));
      studentMarks.setYear(rs.getInt("year"));
       studentMarks;
   }
}

 org.springframework.dao.DataAccessException;
 org.springframework.jdbc.core.JdbcTemplate;
class StudentJDBCTemplate implements StudentDAO{
    JdbcTemplate jdbcTemplateObject;
    setDataSource(DataSource dataSource) {
      this.jdbcTemplateObject =  JdbcTemplate(dataSource);
   }
   try {
         String SQL1 = "insert into Student (name,age) values (?,?)";
         jdbcTemplateObject.update( SQL1,name,age);
         // Get the latest student id to be used in Marks table
         String SQL2 = "select max(id) from Student";
         int sid = jdbcTemplateObject.queryForInt( SQL2 );
         String SQL3 = "insert into Marks(sid,marks,year) " + 
                       "values (?,?,1)">;
         jdbcTemplateObject.update( SQL3,sid,year);
         System.out.println("Created Name = " + name + ",Age = " + age);
          to simulate the exception.
         throw new RuntimeException("simulate Error condition") ;
      } catch (DataAccessException e) {
         System.out.println("Error in creating record,rolling back");
         throw e;
      }
   }
    listStudents() {
      String SQL = "select * from Student,Marks where Student.id=Marks.sid";
      List <StudentMarks> studentMarks=jdbcTemplateObject.query(SQL, StudentMarksMapper());
       studentMarks;
   }
}

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xmlns:tx="http://www.springframework.org/schema/tx"
   xmlns:aop="http://www.springframework.org/schema/aop"
   xsi:schemaLocation="http://www.springframework.org/schema/beans
   http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 
   http://www.springframework.org/schema/tx
   http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
   http://www.springframework.org/schema/aop
   http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">

   <!-- Initialization for data source -->
   bean id="dataSource" 
      class="org.springframework.jdbc.datasource.DriverManagerDataSource">
      property name="driverClassName" value="com.mysql.jdbc.Driver"/>
      ="url"="jdbc:mysql://localhost:3306/TEST"="username"="root"="password"="1234"/>
   </beantx:advice ="txAdvice"  transaction-manager="transactionManager"tx:attributestx:method ="create">
   tx:adviceaop:configaop:pointcut ="createOperation" 
      expression="execution(* com.tutorialspoint.StudentJDBCTemplate.create(..))"aop:advisor advice-ref pointcut-ref="createOperation" Initialization for TransactionManager ="transactionManager"
   class="org.springframework.jdbc.datasource.DataSourceTransactionManager"  ref="dataSource" />    
    Definition for studentJDBCTemplate bean ="studentJDBCTemplate"  
   class="com.tutorialspoint.StudentJDBCTemplate"/>  
   >

beans>

 org.springframework.context.ApplicationContext;
 org.springframework.context.support.ClassPathXmlApplicationContext;
 MainApp {
   static  main(String[] args) {
      ApplicationContext context = 
             new ClassPathXmlApplicationContext("Beans.xml");
      StudentDAO studentJDBCTemplate = 
      (StudentDAO)context.getBean("studentJDBCTemplate");     
      System.out.println("------Records creation--------" );
      studentJDBCTemplate.create("Zara",11,99,2010);
      studentJDBCTemplate.create("Nuha",20,97,1)">);
      studentJDBCTemplate.create("Ayan",25,100,2011);
      System.out.println("------Listing all the records--------" );
      List<StudentMarks> studentMarks = studentJDBCTemplate.listStudents();
      for (StudentMarks record : studentMarks) {
         System.out.print("ID : " + record.getId() );
         System.out.print(",Name : " + record.getName() );
         System.out.print(",Marks : " + record.getMarks());
         System.out.print(",Year : " + record.getYear());
         System.out.println(",Age : " + record.getAge());
      }
   }
}