這兩天一直在研究ibatis與spring的整合 一個(gè)小小的demo搞的我頭暈?zāi)垦5模绦蛞坏┡芷饋?lái)了,突然有一種豁然開(kāi)朗,重見(jiàn)天日,感覺(jué)生活很美好的感覺(jué)!,也許,這就是那一行行的代碼帶給我們的不同享受吧。呵呵,廢話就不多說(shuō)了。
在此先引用幾句別人的資料。。。
Spring通過(guò)DAO模式,提供了對(duì)iBATIS的良好支持。SqlMapClient對(duì)象是iBATIS中的主要對(duì)象,我們可以通過(guò)配置讓spring來(lái)管理SqlMapClient對(duì)象的創(chuàng)建。
與hibernate類似,Spring提供了SqlMapClientDaoSupport對(duì)象,我們的DAO可以繼承這個(gè)類,通過(guò)它所提供的SqlMapClientTemplate對(duì)象來(lái)操縱數(shù)據(jù)庫(kù)。看起來(lái)這些概念都與hibernate類似。
通過(guò)SqlMapClientTemplate來(lái)操縱數(shù)據(jù)庫(kù)的CRUD是沒(méi)有問(wèn)題的。此篇文章沒(méi)有進(jìn)行事務(wù)處理。
本文采用ibatis+spring+mysql 進(jìn)行編寫
數(shù)據(jù)庫(kù)腳本如下
- create database ibatis;
- create table person(
- id int primary key,
- name varchar(10),
- sex int
- );
一:要有一個(gè)PO類
Person.java
- package po;
- import java.io.Serializable;
- public class Person implements Serializable{
- /**
- *
- */
- private static final long serialVersionUID = -517413165963030507L;
- /**
- *
- */
- private int id;
- private String name;
- private int sex;
- public Person(){
- }
- public Person(int id,String name,int sex){
- this.id = id;
- this.name = name;
- this.sex = sex;
- }
- public int getId() {
- return id;
- }
- public void setId(int id) {
- this.id = id;
- }
- public String getName() {
- return name;
- }
- public void setName(String name) {
- this.name = name;
- }
- public int getSex() {
- return sex;
- }
- public void setSex(int sex) {
- this.sex = sex;
- }
- }
二:DAO接口類
IAction.java
- package dao;
- import java.util.List;
- import po.Person;
- public interface IAction {
- public boolean insertPerson(Person person); //添加
- public boolean deleteById(int id); //刪除
- public boolean updatePerson(Person person); //修改
- public Person queryById(int id); //根據(jù)ID查詢
- public List<Person> queryAllPerson(); //查詢?nèi)?/span>
- }
三:DAO實(shí)現(xiàn)類
ActionImpl.java 此類繼承SqlMapClientSupport 實(shí)現(xiàn)IAction接口
- package dao.impl;
- import java.io.IOException;
- import java.io.Reader;
- import java.sql.SQLException;
- import java.util.List;
- import org.springframework.orm.ibatis.support.SqlMapClientDaoSupport;
- import com.ibatis.common.resources.Resources;
- import com.ibatis.sqlmap.client.SqlMapClient;
- import com.ibatis.sqlmap.client.SqlMapClientBuilder;
- import com.ibatis.sqlmap.client.SqlMapSession;
- import po.Person;
- import dao.IAction;
- public class ActionImpl extends SqlMapClientDaoSupport implements IAction {
- //添加操作
- @Override
- public boolean insertPerson(Person person) {
- // TODO Auto-generated method stub
- getSqlMapClientTemplate().insert("insertPerson",person);
- return false;
- }
- //刪除操作
- @Override
- public boolean deleteById(int id) {
- // TODO Auto-generated method stub
- getSqlMapClientTemplate().delete("deleteById", id);
- return false;
- }
- //查詢?nèi)?/span>
- @Override
- public List<Person> queryAllPerson() {
- // TODO Auto-generated method stub
- List<Person> persons = getSqlMapClientTemplate().queryForList("queryAllPerson");
- return persons;
- }
- @Override
- public Person queryById(int id) {
- // TODO Auto-generated method stub
- //自己添加實(shí)現(xiàn)代碼
- return null;
- }
- @Override
- public boolean updatePerson(Person person) {
- // TODO Auto-generated method stub
- //自己添加實(shí)現(xiàn)代碼
- return false;
- }
四:既然是ibatis spring整合 那就必須要有ibatis的配置文件
SqlMapConfig.xml
- <?xml version="1.0" encoding="UTF-8" ?>
- <!DOCTYPE sqlMapConfig
- PUBLIC "-//iBATIS.com//DTD SQL Map Config 2.0//EN"
- "http://www.ibatis.com/dtd/sql-map-config-2.dtd">
- <sqlMapConfig>
- <!--此處一定不能有<settings/> 標(biāo)簽-->
- <!-- <settings cacheModelsEnabled="true"
- enhancementEnabled="true"
- lazyLoadingEnabled="true"
- errorTracingEnabled="true"
- maxRequests="32"
- maxSessions="10"
- maxTransactions="5"
- useStatementNamespaces="false" /> -->
- <sqlMap resource="po/Person.xml" />
- </sqlMapConfig>
SqlMapClient.xml里本應(yīng)該有數(shù)據(jù)源的配置的 使用spring之后數(shù)據(jù)源的配置移植到了spring上
五:Person.xml
里面配置了一下對(duì)數(shù)據(jù)的增刪改查操作
- <?xml version="1.0" encoding="UTF-8"?>
- <!DOCTYPE sqlMap
- PUBLIC "-//iBATIS.com//DTD SQL Map 2.0//EN"
- "http://www.ibatis.com/dtd/sql-map-2.dtd">
- <sqlMap>
- <typeAlias alias="person" type="po.Person" />
- <insert id="insertPerson" parameterClass="po.Person">
- <![CDATA[
- insert into person values (#id#,#name#,#sex#)
- ]]>
- </insert>
- <delete id="deleteById" parameterClass="int">
- <![CDATA[
- delete from person where id=#id#
- ]]>
- </delete>
- <update id="updatePerson" parameterClass="po.Person">
- <![CDATA[
- update person set name=#name#,sex=#sex# where id=#id#
- ]]>
- </update>
- <select id="queryById" parameterClass="int" resultClass="po.Person">
- <![CDATA[
- select * from person where id=#id#
- ]]>
- </select>
- <select id="queryAllPerson" cacheModel="personCache" resultClass="po.Person">
- <![CDATA[
- select * from person
- ]]>
- </select>
- </sqlMap>
六:下面最重要的也就是配置applicationContext.xml了
- <?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:p="http://www.springframework.org/schema/p"
- xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
- <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
- <property name="driverClassName" value="com.mysql.jdbc.Driver" />
- <property name="url" value="jdbc:mysql://localhost:3306/ibatis" />
- <property name="username" value="root" />
- <property name="password" value="1" />
- </bean>
- <bean id="sqlMapClient" class="org.springframework.orm.ibatis.SqlMapClientFactoryBean">
- <property name="configLocation"> <!-- name 為configLocation或s 不可為其他 -->
- <value>SqlMapConfig.xml</value> <!-- 不區(qū)分大小寫,路徑前可加'/' -->
- </property>
- <!-- dataSource不是必需 -->
- <property name="dataSource">
- <ref local="dataSource" />
- </property>
- </bean>
- <bean id="personDAO" class="dao.impl.ActionImpl">
- <!-- dataSource不是必需 -->
- <property name="dataSource">
- <ref local="dataSource" />
- </property>
- <!-- sqlMapClient必需 -->
- <property name="sqlMapClient">
- <ref local="sqlMapClient"/>
- </property>
- </bean>
- <!-- transactionManager不是必需 -->
- <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
- <property name="dataSource">
- <ref local="dataSource" />
- </property>
- </bean>
- </beans>
注釋里面的必需或不是必需都是本人多次試驗(yàn)的,至于為什么是必需不必需 其中的原理我也不是能太講清楚,在此先是這些寫罷了。
里面的每一個(gè)節(jié)點(diǎn),屬性,如果不太理解,可以上網(wǎng)查一些其他資料。
七:編寫測(cè)試類
此類利用junit進(jìn)行測(cè)試。只測(cè)試了部分功能。
- package dao.impl;
- import java.util.Iterator;
- import java.util.List;
- import org.junit.Test;
- import org.springframework.context.ApplicationContext;
- import org.springframework.context.support.ClassPathXmlApplicationContext;
- import po.Person;
- public class ActionImplTest {
- private static ApplicationContext applicationContext = null; //提供靜態(tài)ApplicationContext
- static{
- applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml"); //實(shí)例化
- }
- //添加操作
- @Test
- public void testInsertPerson(){
- ActionImpl s = (ActionImpl)applicationContext.getBean("personDAO");
- s.insertPerson(new Person(1,"zhangsan",2));
- }
- //刪除操作
- @Test
- public void testDeletePerson(){
- ActionImpl s = (ActionImpl)applicationContext.getBean("personDAO");
- s.deleteById(1);
- }
- //查詢?nèi)?nbsp;
- @Test
- public void testQueryAllPerson(){
- ActionImpl s = (ActionImpl)applicationContext.getBean("personDAO");
- List<Person> persons = s.queryAllPerson();
- //System.out.println(persons.size());
- Iterator<Person> ite = persons.iterator();
- while(ite.hasNext()){
- Person person = ite.next();
- System.out.print("ID: "+person.getId());
- System.out.print(" Name: "+person.getName());
- System.out.print(" Sex: "+person.getSex());
- System.out.println();
- }
- }
- }
八:如需記錄日志 則要log4j.properties
- #log4j.rootLogger=DEBUG, stdout
- #log4j.appender.stdout=org.apache.log4j.ConsoleAppender
- #log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
- #log4j.appender.stdout.layout.ConversionPattern=%c{1} - %m%n
- #log4j.logger.java.sql.PreparedStatement=DEBUG
- log4j.rootLogger=DEBUG, stdout, fileout
- #log4j.logger.test=info
- #log4j.logger.org.apache.jasper = DEBUG
- #log4j.logger.org.apache.catalina.startup.TldConfig = DEBUG
- #log4j.logger.org.apache.catalina.session.ManagerBase = DEBUG
- log4j.logger.com.fiscal = DEBUG
- log4j.logger.com.system = DEBUG
- log4j.logger.com.ibatis = DEBUG
- log4j.logger.com.ibatis.common.jdbc.SimpleDataSource = DEBUG
- log4j.logger.com.ibatis.common.jdbc.ScriptRunner = DEBUG
- log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate = DEBUG
- log4j.logger.java.sql.Connection = DEBUG
- log4j.logger.java.sql.Statement = DEBUG
- log4j.logger.java.sql.PreparedStatement = DEBUG, fileout
- log4j.logger.java.sql.ResultSet = DEBUG
- log4j.appender.stdout=org.apache.log4j.ConsoleAppender
- log4j.appender.fileout=org.apache.log4j.RollingFileAppender
- log4j.appender.fileout.File=C\:\\ibatis.log
- log4j.appender.fileout.MaxFileSize=10000KB
- log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
- log4j.appender.stdout.layout.ConversionPattern=[%-5p] %d{yyyy-MM-dd HH\:mm\:ss} \:%m%n
- log4j.appender.fileout.layout=org.apache.log4j.PatternLayout
- log4j.appender.fileout.layout.ConversionPattern=[%-5p]_%d{yyyy-MM-dd HH\:mm\:ss} \:%m%n
- #log4j.appender.stdout.layout=org.apache.log4j.SimpleLayout
- # log4j.logger.org=info
九:已經(jīng)到最后了,我覺(jué)得這最后的才是最最重要的,就是一下jar包問(wèn)題
我調(diào)試了很長(zhǎng)時(shí)間 一大部分時(shí)間是jar問(wèn)題
在此列出一下我認(rèn)為能夠跑起來(lái)這個(gè)小程序所需的一下jar包
如沒(méi)有,可網(wǎng)上下載。
- ibaits-2.3.4.jar
- spring.jar
- mysql-connector-java-bin.jar
- commons-dbcp-1.4.jar
- commons-pool-1.5.6.jar
- spring-orm-2.5.6.jar //已集成到spring.jar里
- //記錄日志所需
- log4j-1.2.15.jar
- commons-logging.jar
下面是本人的目錄結(jié)構(gòu)圖
結(jié)束語(yǔ):此文沒(méi)有過(guò)多的講些原理性的問(wèn)題,比如為何這樣寫,又為何這樣配置,只是給出了一個(gè)搭建框架的架子而已。
因?yàn)槲乙彩且粋€(gè)菜鳥(niǎo),至于如何,我想,等我們有經(jīng)驗(yàn)了,會(huì)慢慢都懂得。
還希望大家共同努力,實(shí)現(xiàn)自己的夢(mèng)想。
希望能與各位共勉!
小白