阿里-马云的学习笔记

导航

spring+springMVC+mybatis+maven+mysql环境搭建(一)

环境搭建是最基础的,但是发现平时很多时候大家都是ctrl c+ctrl v,这样对于很多细节完全不清楚,来,一起深入了解下

 

一、准备工作

首先得准备好maven、mysql啥的,这些略。。。

并且mysql中新建表,脚本如下:

 db脚本:

CREATE TABLE `t_user` (  
  `USER_ID` int(11) NOT NULL AUTO_INCREMENT,  
  `USER_NAME` char(30) NOT NULL,  
  `USER_PASSWORD` char(10) NOT NULL,  
  `USER_EMAIL` char(30) NOT NULL,  
  PRIMARY KEY (`USER_ID`),  
  KEY `IDX_NAME` (`USER_NAME`)  
) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8

 dml脚本:

INSERT INTO t_user (USER_ID, USER_NAME, USER_PASSWORD, USER_EMAIL) VALUES (1, '林炳文', '1234567@', 'ling20081005@126.com');  
INSERT INTO t_user (USER_ID, USER_NAME, USER_PASSWORD, USER_EMAIL) VALUES (2, 'evan', '123', 'fff@126.com');  
INSERT INTO t_user (USER_ID, USER_NAME, USER_PASSWORD, USER_EMAIL) VALUES (3, 'kaka', 'cadg', 'fwsfg@126.com');  
INSERT INTO t_user (USER_ID, USER_NAME, USER_PASSWORD, USER_EMAIL) VALUES (4, 'simle', 'cscs', 'fsaf@126.com');  
INSERT INTO t_user (USER_ID, USER_NAME, USER_PASSWORD, USER_EMAIL) VALUES (5, 'arthur', 'csas', 'fsaff@126.com');  
INSERT INTO t_user (USER_ID, USER_NAME, USER_PASSWORD, USER_EMAIL) VALUES (6, '小德', 'yuh78', 'fdfas@126.com');  
INSERT INTO t_user (USER_ID, USER_NAME, USER_PASSWORD, USER_EMAIL) VALUES (7, '小小', 'cvff', 'fsaf@126.com');  
INSERT INTO t_user (USER_ID, USER_NAME, USER_PASSWORD, USER_EMAIL) VALUES (8, '林林之家', 'gvv', 'lin@126.com');  
INSERT INTO t_user (USER_ID, USER_NAME, USER_PASSWORD, USER_EMAIL) VALUES (9, '林炳文Evankaka', 'dfsc', 'ling2008@126.com');  
INSERT INTO t_user (USER_ID, USER_NAME, USER_PASSWORD, USER_EMAIL) VALUES (10, 'apple', 'uih6', 'ff@qq.com');

 

二、创建maven项目

有关maven基础有疑问的,移步:maven菜鸟教程

注意:需要先配置下maven的本地仓库地址,默认为${user.home}/.m2/repository,修改方法为首先找到maven安装目录/conf/settings,改变<localRepository>的值,然后window-->preference-->maven-->User Settings选中maven安装目录/conf/settings,如下图:

这样maven所下载的jar包全部存放在指定位置,不会默认放在c盘。

 

前三张图片都是网上盗的,最后一张则是本人项目图片,如下:

 

 

注意,创建完项目之后,pom.xml会报错,报错信息为:

 

报错原因:因为在现在的web项目中,web.xml已经不重要了,但是maven没有跟上这个变化,会提示报错。

解决方法:将红框中的一段加到pom.xml中去,搞定。

 

最后,需要检查jdk版本,右击项目-->properties-->java compiler

                     -->java build path

                     -->project facets

保持jdk版本一致。

 

三、spring+mybatis整合

1、创建相关包与资源文件

 

2、pom.xml配置所需依赖

<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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.ty</groupId>
    <artifactId>ssm_ty</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-war-plugin</artifactId>
                <version>2.6</version>
                <configuration>
                    <failOnMissingWebXml>false</failOnMissingWebXml>
                </configuration>
            </plugin>
        </plugins>
    </build>
    
    <properties>  
        <!-- spring版本号 -->  
        <spring.version>3.2.8.RELEASE</spring.version>  
        <!-- log4j日志文件管理包版本 -->  
        <slf4j.version>1.6.6</slf4j.version>  
        <log4j.version>1.2.12</log4j.version>  
        <!-- junit版本号 -->  
        <junit.version>4.10</junit.version>  
        <!-- mybatis版本号 -->  
        <mybatis.version>3.2.1</mybatis.version>  
    </properties>  
    
    <dependencies>  
        <!-- 添加Spring依赖 -->  
        <dependency>  
            <groupId>org.springframework</groupId>  
            <artifactId>spring-core</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-context</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-aop</artifactId>  
            <version>${spring.version}</version>  
        </dependency>  
        <dependency>  
            <groupId>org.springframework</groupId>  
            <artifactId>spring-aspects</artifactId>  
            <version>${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-web</artifactId>  
            <version>${spring.version}</version>  
        </dependency>  
  
        <!--单元测试依赖 -->  
        <dependency>  
            <groupId>junit</groupId>  
            <artifactId>junit</artifactId>  
            <version>${junit.version}</version>  
            <scope>test</scope>  
        </dependency>  
  
        <!-- 日志文件管理包 -->  
        <!-- log start -->  
        <dependency>  
            <groupId>log4j</groupId>  
            <artifactId>log4j</artifactId>  
            <version>${log4j.version}</version>  
        </dependency>  
        <dependency>  
            <groupId>org.slf4j</groupId>  
            <artifactId>slf4j-api</artifactId>  
            <version>${slf4j.version}</version>  
        </dependency>  
        <dependency>  
            <groupId>org.slf4j</groupId>  
            <artifactId>slf4j-log4j12</artifactId>  
            <version>${slf4j.version}</version>  
        </dependency>  
        <!-- log end -->  
  
        <!--spring单元测试依赖 -->  
        <dependency>  
            <groupId>org.springframework</groupId>  
            <artifactId>spring-test</artifactId>  
            <version>${spring.version}</version>  
            <scope>test</scope>  
        </dependency>  
  
        <!--mybatis依赖 -->  
        <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>1.2.0</version>  
        </dependency>  
  
        <!-- mysql驱动包 -->  
        <dependency>  
            <groupId>mysql</groupId>  
            <artifactId>mysql-connector-java</artifactId>  
            <version>5.1.29</version>  
        </dependency>  
    </dependencies>
</project>

 

3、新建相关Java代码

User类:

package com.ty.dto;

/**
 * @author Taoyong
 * @date 2018年5月20日
 * 天下没有难敲的代码!
 */
public class User {

    private Integer userId;  
    private String userName;  
    private String userPassword;  
    private String userEmail;  
  
    public Integer getUserId() {  
        return userId;  
    }  
  
    public void setUserId(Integer userId) {  
        this.userId = userId;  
    }  
  
    public String getUserName() {  
        return userName;  
    }  
  
    public void setUserName(String userName) {  
        this.userName = userName;  
    }  
  
    public String getUserPassword() {  
        return userPassword;  
    }  
  
    public void setUserPassword(String userPassword) {  
        this.userPassword = userPassword;  
    }  
  
    public String getUserEmail() {  
        return userEmail;  
    }  
  
    public void setUserEmail(String userEmail) {  
        this.userEmail = userEmail;  
    }  
  
    @Override  
    public String toString() {  
        return "User [userId=" + userId + ", userName=" + userName  
                + ", userPassword=" + userPassword + ", userEmail=" + userEmail  
                + "]";  
    }  
}

 

UserDao(接口):

package com.ty.dao;

import com.ty.dto.User;

/**
 * @author Taoyong
 * @date 2018年5月20日
 * 天下没有难敲的代码!
 */
public interface UserDao {

    public User selectUserById(Integer userId);
}

 

UserMapper.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">  

<!-- namespace必须与dao的名字一致,否则会出现找不到sql语句的错误 --> <mapper namespace="com.ty.dao.UserDao"> <!--设置dto类和数据库中表的字段一一对应,注意数据库字段和domain类中的字段名称不致,此处一定要!--> <resultMap id="BaseResultMap" type="com.ty.dto"> <id column="USER_ID" property="userId" jdbcType="INTEGER" /> <result column="USER_NAME" property="userName" jdbcType="CHAR" /> <result column="USER_PASSWORD" property="userPassword" jdbcType="CHAR" /> <result column="USER_EMAIL" property="userEmail" jdbcType="CHAR" /> </resultMap> <!-- 查询单条记录 --> <select id="selectUserById" parameterType="int" resultMap="BaseResultMap"> SELECT * FROM t_user WHERE USER_ID = #{userId} </select> </mapper>

 

 UserService(接口)

package com.ty.service;

import com.ty.dto.User;

/**
 * @author Taoyong
 * @date 2018年5月20日
 * 天下没有难敲的代码!
 */
public interface UserService {

    public User selectUserById(Integer userId);
}

 

UserServiceImpl

package com.ty.service.impl;

import org.springframework.beans.factory.annotation.Autowired;

import com.ty.dao.UserDao;
import com.ty.dto.User;
import com.ty.service.UserService;

/**
 * @author Taoyong
 * @date 2018年5月20日
 * 天下没有难敲的代码!
 */

@Service public class UserServiceImpl implements UserService { @Autowired private UserDao userDao; public User selectUserById(Integer userId) { return userDao.selectUserById(userId); } }

 

四、资源配置

1、mybatis-config.xml

<?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>      
</configuration>

 

2、jdbc.properties

driverClassName=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/mysql
username=taoyong
password=123456

 

3、application.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"
    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/context    
           http://www.springframework.org/schema/context/spring-context-3.0.xsd">

    <!-- 引入jdbc配置文件 -->
    <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="locations">
            <list>
                <value>classpath:properties/*.properties</value>
                <!--要是有多个配置文件,只需在这里继续添加即可 -->
            </list>
        </property>
    </bean>

    <!-- 配置数据源 -->
    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <!-- 使用properties来配置 -->
        <property name="driverClassName">
            <value>${driverClassName}</value>
        </property>
        <property name="url">
            <value>${url}</value>
        </property>
        <property name="username">
            <value>${username}</value>
        </property>
        <property name="password">
            <value>${password}</value>
        </property>
    </bean>

    <!-- 自动扫描了所有的XxxxMapper.xml对应的mapper接口文件,这样就不用一个一个手动配置Mpper的映射了,只要Mapper接口类和Mapper映射文件对应起来就可以了。 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.ty.dao" />
    </bean>

    <!-- 配置Mybatis的文件 ,mapperLocations配置**Mapper.xml文件位置,configLocation配置mybatis-config文件位置 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="mapperLocations" value="classpath*:com/ty/mapper/**/*.xml" />
        <property name="configLocation" value="classpath:mybatis/mybatis-config.xml" />
    </bean>

    <!-- 自动扫描注解的bean -->
    <context:component-scan base-package="com.ty.service" />

</beans>

 

4、配置log4j.properties

log4j.rootLogger=DEBUG,Console,Stdout  
  
#Console  
log4j.appender.Console=org.apache.log4j.ConsoleAppender  
log4j.appender.Console.layout=org.apache.log4j.PatternLayout  
log4j.appender.Console.layout.ConversionPattern=%d [%t] %-5p [%c] - %m%n  
  
log4j.logger.java.sql.ResultSet=INFO  
log4j.logger.org.apache=INFO  
log4j.logger.java.sql.Connection=DEBUG  
log4j.logger.java.sql.Statement=DEBUG  
log4j.logger.java.sql.PreparedStatement=DEBUG   
  
log4j.appender.Stdout = org.apache.log4j.DailyRollingFileAppender    
log4j.appender.Stdout.File = E://logs/log.log    
log4j.appender.Stdout.Append = true    
log4j.appender.Stdout.Threshold = DEBUG     
log4j.appender.Stdout.layout = org.apache.log4j.PatternLayout    
log4j.appender.Stdout.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss}  [ %t:%r ] - [ %p ]  %m%n   

 

五、单元测试

1、测试基类SpringBaseTest(负责spring与junit的整合,加载application.xml资源文件)

package com.ty.baseTest;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.AbstractJUnit4SpringContextTests;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import com.ty.service.UserService;

/**
 * @author Taoyong
 * @date 2018年5月20日
 * 天下没有难敲的代码!
 */

//spring整合junit引入配置文件,classpath就是指编译后classes所存放的路径。  
@ContextConfiguration(locations = { "classpath:application.xml" })  
//使用标准的JUnit @RunWith注释来告诉JUnit使用Spring TestRunner  
@RunWith(SpringJUnit4ClassRunner.class)
public class SpringBaseTest extends AbstractJUnit4SpringContextTests {
    //使用slf4j在代码中打印日志
    protected Logger logger = LoggerFactory.getLogger(getClass());
    
    //测试spring环境是否正常启动
    @SuppressWarnings("resource")
    @Test
    public void testEnv() {
        ApplicationContext applicationContext = new ClassPathXmlApplicationContext("classpath:application.xml");
        UserService userService = (UserService) applicationContext.getBean("user.service.default");
        logger.debug(userService.toString());
    }
}

 

2、UserServiceTest

 

package com.ty.service;

import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;

import com.ty.baseTest.SpringBaseTest;
import com.ty.dto.User;

/**
 * @author Taoyong
 * @date 2018年5月20日
 * 天下没有难敲的代码!
 */
public class UserServiceTest extends SpringBaseTest {

    @Autowired  
    private UserService userService;  
    Logger logger = LoggerFactory.getLogger(UserServiceTest.class);  
      
    @Test  
    public void testSelectUserById(){  
        User user = userService.selectUserById(10);  
        logger.debug("查找结果" + user);
    }  
}

这地方查询的时候报错,报错信息如下:

 原因:mysql驱动包的版本低了,使用的是mysql-connector-Java-5.1.29.jar,更改为mysql-connector-Java-5.1.32.jar即可。

 

3、测试结果

 这样spring+mybatis的整合就完了,下面一篇接着把springMVC整合进来

 

 

 

 

 

 

 

posted on 2018-05-20 15:53  阿里-马云的学习笔记  阅读(956)  评论(0编辑  收藏  举报