（笔记）Spring实战_事务管理（3）_在Spring中的编码事务

来源：互联网发布：网络映射如何做编辑：程序博客网时间：2024/05/01 17:09

spring-spitter.xml

<?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:context="http://www.springframework.org/schema/context"    xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"    xsi:schemaLocation="http://www.springframework.org/schema/beans         http://www.springframework.org/schema/beans/spring-beans.xsd         http://www.springframework.org/schema/context         http://www.springframework.org/schema/context/spring-context.xsd         http://www.springframework.org/schema/aop         http://www.springframework.org/schema/aop/spring-aop.xsd         http://www.springframework.org/schema/tx         http://www.springframework.org/schema/tx/spring-tx.xsd">    <bean id="dataSource"        class="org.springframework.jdbc.datasource.DriverManagerDataSource">        <property name="driverClassName" value="oracle.jdbc.driver.OracleDriver" />        <property name="url" value="jdbc:oracle:thin:@localhost:1521:orcl" />        <property name="username" value="spring" />        <property name="password" value="spring" />    </bean>    <bean id="jdbcTemplate" class="org.springframework.jdbc.core.simple.SimpleJdbcTemplate">        <constructor-arg ref="dataSource" />    </bean>    <bean id="spitterDao"        class="com.springinaction.spitter.transaction.code.JdbcSpitterDAO">        <property name="jdbcTemplate" ref="jdbcTemplate" />    </bean>    <bean id="spitterService"        class="com.springinaction.spitter.transaction.code.SpitterServiceImpl">        <property name="spitterDao" ref="spitterDao" />        <property name="transactionTemplate">            <bean class="org.springframework.transaction.support.TransactionTemplate">                <property name="transactionManager" ref="transactionManager" />            </bean>        </property>    </bean>    <bean id="transactionManager"        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">        <property name="dataSource" ref="dataSource" />    </bean></beans>

JdbcSpitterDAO.java

package com.springinaction.spitter.transaction.code;import org.springframework.jdbc.core.simple.SimpleJdbcTemplate;public class JdbcSpitterDAO implements SpitterDAO{    private SimpleJdbcTemplate jdbcTemplate;    public void setJdbcTemplate(SimpleJdbcTemplate jdbcTemplate)    {        this.jdbcTemplate = jdbcTemplate;    }    public void addSpitter(Spitter spitter)    {        jdbcTemplate.update(            "INSERT INTO SPITTER(ID,USERNAME,PASSWORD,FULLNAME,EMAIL) VALUES(?,?,?,?,?)",            spitter.getId(), spitter.getUsername(), spitter.getPassword(), spitter.getFullname(),            spitter.getEmail());    }}

SpitterServiceImpl.java

package com.springinaction.spitter.transaction.code;import org.springframework.transaction.TransactionStatus;import org.springframework.transaction.support.TransactionCallback;import org.springframework.transaction.support.TransactionTemplate;public class SpitterServiceImpl implements SpitterService{    private SpitterDAO spitterDao;    private TransactionTemplate transactionTemplate;    public void setSpitterDao(SpitterDAO spitterDao)    {        this.spitterDao = spitterDao;    }    public void setTransactionTemplate(TransactionTemplate transactionTemplate)    {        this.transactionTemplate = transactionTemplate;    }    public void saveSpitter(final Spitter spitter)    {        transactionTemplate.execute(new TransactionCallback<Void>()        {            public Void doInTransaction(TransactionStatus txStatus)            {                try                {                    spitterDao.addSpitter(spitter);                }                catch (RuntimeException e)                {                    txStatus.setRollbackOnly();                    throw e;                }                return null;            }        });    }}

Spitter.java

package com.springinaction.spitter.transaction.code;public class Spitter{    private int id;    private String username;    private String password;    private String fullname;    private String email;    /**     * @return Returns the id.     */    public int getId()    {        return id;    }    /**     * @param id     *            The id to set.     */    public void setId(int id)    {        this.id = id;    }    /**     * @return Returns the username.     */    public String getUsername()    {        return username;    }    /**     * @param username     *            The username to set.     */    public void setUsername(String username)    {        this.username = username;    }    /**     * @return Returns the password.     */    public String getPassword()    {        return password;    }    /**     * @param password     *            The password to set.     */    public void setPassword(String password)    {        this.password = password;    }    /**     * @return Returns the fullname.     */    public String getFullname()    {        return fullname;    }    /**     * @param fullname     *            The fullname to set.     */    public void setFullname(String fullname)    {        this.fullname = fullname;    }    /**     * @return Returns the email.     */    public String getEmail()    {        return email;    }    /**     * @param email     *            The email to set.     */    public void setEmail(String email)    {        this.email = email;    }    @Override    public String toString()    {        return "Spitter [id=" + id + ", username=" + username + ", password=" + password               + ", fullname=" + fullname + ", email=" + email + "]";    }}

Test Demo

    @Test    public void test1()    {        ApplicationContext ctx = new ClassPathXmlApplicationContext(            "com/springinaction/spitter/transaction/code/spring-spitter.xml");        SpitterService service = (SpitterService)ctx.getBean("spitterService");        Spitter spitter = new Spitter();        spitter.setId(19);        spitter.setUsername("Jagger");        spitter.setPassword("123456");        spitter.setFullname("Jagger S Y CHEN");        spitter.setEmail("43970615@XX.com");        service.saveSpitter(spitter);    }

如果你想完全控制事务的边界，编码式事务是很好的。但是，你从程序清单可以看出它是侵入性的。你必须修改saveSpitter()实现来得到Spring的编程式事务的支持。

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