SSM+maven+oracle搭建一（spring+mybatis測試成功）
阿新 • • 發佈：2019-01-09
1.maven需要引入的jar包
<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.cxc</groupId>
<artifactId>Hotel</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>Hotel Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<!-- spring版本號 -->
<spring.version>3.2.0.RELEASE</spring.version>
<!-- mybatis版本號 -->
<mybatis.version>3.2.6</mybatis.version>
<!-- log4j日誌檔案管理包版本 -->
<slf4j.version>1.7.7</slf4j.version>
<log4j.version>1.2.14</log4j.version>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<!-- 表示開發的時候引入，釋出的時候不會載入此包 -->
<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>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>3.2.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${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>3.1.1</version>
</dependency>
<!-- mybatis/spring包 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.2.2</version>
</dependency>
<!-- 匯入java ee jar 包 -->
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>7.0</version>
</dependency>
<!-- 匯入Mysql資料庫連結jar包 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.22</version>
</dependency>
<!-- 匯入dbcp的jar包，用來在applicationContext.xml中配置資料庫 -->
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.2.2</version>
</dependency>
<!-- JSTL標籤類 -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- 日誌檔案管理包 -->
<!-- log start -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>
<!-- 格式化物件，方便輸出日誌 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.1.41</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${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>1.9.11</version>
</dependency>
<!-- 上傳元件包 -->
<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>
</dependencies>
</project>
注意此處沒有引入連線oracle的ojdbc的jar，原因是maven沒有得到oracle的授權，所以無法直接下載使用
我們可以在網上自行尋找，然後放入專案中在eclipse的可視位置，右鍵該jar包，build path即可使用
2.spring與mybatis整合
1）jdbc.properties檔案
#連線oracle資料庫 driverClassName=oracle.jdbc.driver.OracleDriver url=jdbc:oracle:thin:@localhost:1521:orcl username=xiaoshuo password=chengxucai #定義初始連線數 initialSize=0 #定義最大連線數 maxActive=20 #定義最大空閒 maxIdle=20 #定義最小空閒 minIdle=1 #定義最長等待時間 maxWait=60000 #連線mysql資料庫 #jdbc_driverClassName =com.mysql.jdbc.Driver #jdbc_url=jdbc:mysql://localhost:3306/ssm?useUnicode=true&characterEncoding=utf8 #jdbc_username=root #jdbc_password=root
注意：此處複製有可能會新增空格，在測試的時候注意刪除，不然會引起報錯
2）spring-mybatis.xml（主要的就是自動掃描，自動注入，配置資料庫）
<?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" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> <!-- 自動掃描 --> <context:component-scan base-package="cxc.hotel" /> <!-- 引入配置檔案 --> <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="location" value="classpath:jdbc.properties" /> </bean> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="${driverClassName}" /> <property name="url" value="${url}" /> <property name="username" value="${username}" /> <property name="password" value="${password}" /> <!-- 初始化連線大小 --> <property name="initialSize" value="${initialSize}"></property> <!-- 連線池最大數量 --> <property name="maxActive" value="${maxActive}"></property> <!-- 連線池最大空閒 --> <property name="maxIdle" value="${maxIdle}"></property> <!-- 連線池最小空閒 --> <property name="minIdle" value="${minIdle}"></property> <!-- 獲取連線最大等待時間 --> <property name="maxWait" value="${maxWait}"></property> </bean> <!-- spring和MyBatis完美整合，不需要mybatis的配置對映檔案 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <!-- 自動掃描mapping.xml檔案 --> <property name="mapperLocations" value="classpath:cxc/hotel/mapping/*.xml"></property> </bean> <!-- DAO介面所在包名，Spring會自動查詢其下的類 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="cxc.hotel.dao" /> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property> </bean> <!-- (事務管理)transaction manager, use JtaTransactionManager for global tx --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean> </beans>
3）log4j配置
#定義LOG輸出級別
log4j.rootLogger=INFO,Console,File
#定義日誌輸出目的地為控制檯
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.Target=System.out
#可以靈活地指定日誌輸出格式，下面一行是指定具體的格式
log4j.appender.Console.layout = org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n
#檔案大小到達指定尺寸的時候產生一個新的檔案
log4j.appender.File = org.apache.log4j.RollingFileAppender
#指定輸出目錄
log4j.appender.File.File = logs/ssm.log
#定義檔案最大大小
log4j.appender.File.MaxFileSize = 10MB
# 輸出所以日誌，如果換成DEBUG表示輸出DEBUG以上級別日誌
log4j.appender.File.Threshold = ALL
log4j.appender.File.layout = org.apache.log4j.PatternLayout
log4j.appender.File.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH\:mm\:ss}][%c]%m%n
4）junit測試
4.1）oracle中建表，並插入資料
create table users(
id integer not null,
userName varchar(16) not null,
password varchar(16) not null,
age integer not null,
gender integer not null,
primary key(id)
)
insert into users(id,userName,password,age,gender) values(1,'ss','1',24,1) ;4.2）dao介面
package cxc.hotel.dao;
import cxc.hotel.entity.User;
public interface UserDao {
/** 方法名 與 UserMapper.xml 檔案中的 sql語句的 id 相同*/
User findUserById(Integer id);
}
4.3）service介面
package cxc.hotel.service.impl;
import javax.annotation.Resource;
import org.springframework.stereotype.Service;
import cxc.hotel.dao.UserDao;
import cxc.hotel.entity.User;
import cxc.hotel.service.UserService;
@Service("userService")
public class UserServiceImpl implements UserService {
@Resource
private UserDao userDao;
public User getUserById(int userId) {
return this.userDao.findUserById(userId);
}
}
4.4）service實現類
package cxc.hotel.service.impl;
import javax.annotation.Resource;
import org.springframework.stereotype.Service;
import cxc.hotel.dao.UserDao;
import cxc.hotel.entity.User;
import cxc.hotel.service.UserService;
@Service("userService")
public class UserServiceImpl implements UserService {
@Resource
private UserDao userDao;
public User getUserById(int userId) {
return this.userDao.findUserById(userId);
}
}
4.5）建mapper.xml檔案
<?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="cxc.hotel.dao.UserDao" >
<resultMap id="BaseResultMap" type="cxc.hotel.entity.User" >
<id property="id" column="id" jdbcType="INTEGER" />
<result property="userName" column="userName" jdbcType="VARCHAR" />
<result property="password" column="password" jdbcType="VARCHAR" />
<result property="age" column="age" jdbcType="INTEGER" />
<result property="gender" column="gender" jdbcType="INTEGER" />
</resultMap>
<select id="findUserById" resultMap="BaseResultMap" parameterType="java.lang.Integer" > <!--注意此處是resultMap還是resultType-->
select * from users where id = #{id}
</select>
</mapper>4.6）junit測試類
import javax.annotation.Resource;
import org.apache.log4j.Logger;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import com.alibaba.fastjson.JSON;
import cxc.hotel.entity.User;
import cxc.hotel.service.UserService;
@RunWith(SpringJUnit4ClassRunner.class) //表示繼承了SpringJUnit4ClassRunner類
@ContextConfiguration(locations = {"classpath:spring-mybatis.xml"})
public class TestMyBatis {
private static Logger logger = Logger.getLogger(TestMyBatis.class);
// private ApplicationContext ac = null;
@Resource
private UserService userService = null;
@Test
public void test1() {
User user = userService.getUserById(1);
System.out.println(user);
}
} 4.7）測試結果
至此spring+mybatis就整合成功
4.8）整合spring+mybatis後的結構圖
3.注意事項：
1）匯入jar包的時候看看maven中的對應jar包是否能用
2）dao中方法名 與 UserMapper.xml 檔案中的 sql語句的 id 相同
3）自行匯入要使用的ojdbc的jar包
4）建jsp檔案報錯？原因是因為缺少javax.servlet 的jar包依賴
在pom.xml檔案中新增以下程式碼下載servlet-api:
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
5）我上面的log4j檔案的名字前面有一個空格，不知道大家注意沒，因此在控制檯出現警告
經過細心尋找，終於還是發現了這個錯誤，所以大家在寫程式碼的時候一定要小心小心再小心
把空格去掉後，控制檯就能輸出日誌了，結果如下
4.檢視SSM+maven+oracle搭建二（spring+mybatis+springMVC）：點選開啟連結