Maven+spring+mybatis 整合学习

Maven用的阿里的，地址为http://maven.aliyun.com/nexus/content/groups/public，配置在setting的mirror节的url属性中，pom.xml如下：

<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/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion>
<groupId>com.ehl</groupId>
<artifactId>MyMaven</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>MyMaven Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<!-- spring版本号 -->
<spring.version>4.0.2.RELEASE</spring.version>
<!-- mybatis版本号 -->
<mybatis.version>3.2.6</mybatis.version>
<!-- log4j日志文件管理包版本 -->
<slf4j.version>1.7.7</slf4j.version>
<log4j.version>1.2.17</log4j.version>
</properties>

<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<!-- 表示开发的时候引入，发布的时候不会加载此包 -->
<scope>test</scope>
</dependency>
<!-- spring核心包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-oxm</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- mybatis核心包 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<!-- mybatis/spring包 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.2.2</version>
</dependency>
<!-- 导入java ee jar 包 -->
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>7.0</version>
</dependency>
<!-- 导入Mysql数据库链接jar包 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.30</version>
</dependency>
<!-- 导入dbcp的jar包，用来在applicationContext.xml中配置数据库 -->
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.2.2</version>
</dependency>
<!-- JSTL标签类 -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- 日志文件管理包 -->
<!-- log start -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>

<!-- 格式化对象，方便输出日志 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.1.41</version>
</dependency>

<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
</dependency>

<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!-- log end -->
<!-- 映入JSON -->
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.13</version>
</dependency>
<!-- 上传组件包 -->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.3.1</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.4</version>
</dependency>
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
<version>1.9</version>
</dependency>

<dependency>
<groupId>com.cloudhopper.proxool</groupId>
<artifactId>proxool</artifactId>
<version>0.9.1</version>
</dependency>
<dependency>
<groupId>com.cloudhopper.proxool</groupId>
<artifactId>proxool-cglib</artifactId>
<version>0.9.1</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
</plugins>
</build>
</project>

首先创建model

package com.ehl.pojo;

import java.io.Serializable;

public class User implements Serializable {

/**
*
*/
private static final long serialVersionUID = 1L;

private int uid;
private String userName;
private String password;

public int getUid() {
return uid;
}

public void setUid(int uid) {
this.uid = uid;
}

public String getUserName() {
return userName;
}

public void setUserName(String userName) {
this.userName = userName;
}

public String getPassword() {
return password;
}

public void setPassword(String password) {
this.password = password;
}

public static long getSerialversionuid() {
return serialVersionUID;
}

@Override
public String toString() {
return "uId: "+this.uid + ", Name: " + this.userName + ",Pass: " + this.password;
}
}

然后是dao的接口定义

package com.ehl.dao;

import java.util.List;
import com.ehl.po
4000
jo.User;

public interface IUserDao {

public User queryById(int id);

public void save(User u);

public void update(User u);

public void delete(Integer id);

public List<User> queryAll();
}

dao的实现

package com.ehl.dao.impl;

import java.util.List;

import org.mybatis.spring.SqlSessionTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;

import com.ehl.dao.IUserDao;
import com.ehl.pojo.User;

@Repository
public class UserDaoImpl implements IUserDao {

@Autowired
private SqlSessionTemplate sqlSessionTemplate;

@Override
public User queryById(int id) {
return (User) sqlSessionTemplate.selectOne("queryById", id);
}

@Override
public void save(User u) {
sqlSessionTemplate.insert("insert-user", u);
}

@Override
public void update(User u) {
sqlSessionTemplate.update("update-user", u);
}

@Override
public void delete(Integer id) {
sqlSessionTemplate.delete("delete-user",id);
}

@Override
public List<User> queryAll() {
List<User> users = sqlSessionTemplate.selectList("queryAll");
return users;
}

}

service接口定义

package com.ehl.service;

import java.util.List;

import com.ehl.pojo.User;

public interface IUserService {
public User queryById(int id);

public void save(User u);

public void update(User u);

public void delete(Integer id);

public List<User> queryAll();
}

service接口实现

package com.ehl.service.impl;

import java.util.List;

import javax.annotation.Resource;
import org.springframework.stereotype.Service;

import com.ehl.dao.IUserDao;
import com.ehl.pojo.User;
import com.ehl.service.IUserService;

@Service("userService")
public class UserServiceImpl implements IUserService {

@Resource
private IUserDao dao;

@Override
public User queryById(int id) {
// TODO Auto-generated method stub
return dao.queryById(id);
}

@Override
public void save(User u) {
// TODO Auto-generated method stub
dao.save(u);
}

@Override
public void update(User u) {
// TODO Auto-generated method stub
dao.update(u);
}

@Override
public void delete(Integer id) {
// TODO Auto-generated method stub
dao.delete(id);
}

@Override
public List<User> queryAll() {
// TODO Auto-generated method stub
return dao.queryAll();
}
}

applicationContext.xml 配置文件如下

<?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-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-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/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<!-- 采用注释的方式配置bean -->
<context:annotation-config />
<!-- 配置要扫描的包 -->
<context:component-scan base-package="com.ehl"></context:component-scan>

<!-- 加载 jdbc.properties 配置文件 -->
<bean
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath:jdbc.properties</value>
</list>
</property>
</bean>

<!-- 配置数据源(连接池，proxool) -->
<bean id="dataSource"
class="org.springframework.jdbc.datasource.LazyConnectionDataSourceProxy">
<property name="targetDataSource">
<bean class="org.logicalcobwebs.proxool.ProxoolDataSource">
<property name="driver" value="${jdbc.driverClassName}" />
<property name="driverUrl" value="${jdbc.url}" />
<property name="user" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
<property name="maximumConnectionCount" value="${proxool.maxConnCount}" />
<property name="minimumConnectionCount" value="${proxool.minConnCount}" />
<property name="statistics" value="${proxool.statistics}" />
<property name="simultaneousBuildThrottle" value="${proxool.simultaneousBuildThrottle}" />
<property name="trace" value="${proxool.trace}" />
</bean>
</property>
</bean>

<!-- Session工厂 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<!-- mybatis配置文件 -->
<property name="configLocation" value="classpath:mybatis.xml" />
</bean>

<!-- 配置SqlSessionTemplate -->
<bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">
<constructor-arg name="sqlSessionFactory" ref="sqlSessionFactory" />
</bean>

</beans>

resources目录下建立sqlmap文件夹，放置User-sqlmap-mapping.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">

<mapper namespace="com.ehl.pojo.User">

<cache />

<resultMap type="User" id="resultListUser">
<id column="uid" property="uid" />
<result column="userName" property="userName"/>
<result column="password" property="password" />
</resultMap>

<select id="queryById" resultType="User" parameterType="int">
SELECT
UID,
USERNAME,
PASSWORD
FROM user_t
WHERE UID = #{id}
</select>

<insert id="insert-user" parameterType="User" useGeneratedKeys="true" keyProperty="uid">
insert into
user_t(userName,password) values(#{userName},#{password})
</insert>

<update id="update-user" parameterType="User">
UPDATE user_t SET USERNAME=#{userName},PASSWORD=#{password} WHERE UID=#{uid}
</update>

<delete id="delete-user" parameterType="int">
DELETE FROM user_t WHERE UID=#{id}
</delete>

<select id="queryAll" resultMap="resultListUser">
SELECT * FROM user_t
</select>
</mapper>

jdbc属性文件，测试过程中发现，此文件第一行需要加上注释说明，不然jdbc.driverClassName的值总是读取不到
#配置文件
jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/mytest
jdbc.username=SYS
jdbc.password=ehl1234
proxool.maxConnCount=10
proxool.minConnCount=5
proxool.statistics=1m,15m,1h,1d
proxool.simultaneousBuildThrottle=30
proxool.trace=false

最后是mabaits.xml文件
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<typeAliases>
<typeAlias alias="user" type="com.ehl.pojo.User"/>
</typeAliases>

<!-- 指定映射文件 -->
<mappers>
<mapper resource="sqlmap/User-sqlmap-mapping.xml" />
</mappers>
</configuration>

MyEclipse的目录结构如下



最后是集成JUnit的测试代码

package com.ehl.test;

import java.util.List;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import com.ehl.service.IUserService;
import com.ehl.pojo.User;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations="/applicationContext.xml")
public class test {

@Autowired
IUserService userService;

@Test
public void testQueryById(){
User u = userService.queryById(1);
if(u != null){
System.out.println(u);
}
}

@Test
public void testInsert() {
for(int i = 0; i < 100; i++){
User u = new User();
u.setUserName("whh");
u.setPassword("sb");
userService.save(u);
}
System.out.println("保存成功！");
}

@Test
public void testUpdate(){
User u = userService.queryById(3);
u.setUserName("scott");
u.setPassword("scott");
userService.update(u);
System.out.println("修改成功！");
}

@Test
public void testDelete(){
int id = 4;
userService.delete(id);
System.out.println("删除成功！");
}

@Test
public void testQueryAll(){
List<User> users = userService.queryAll();
if(users != null){
for(int i = 0; i < users.size(); i++){
System.out.println(users.get(i));
}
}
}
}