开发环境介绍
IDE: MyEclipse 10.7
jdk: 1.6
maven:apache-maven-3.2.5
基本环境只要上面这些就行.
Maven的安装
1、创建表,并插入数据:
----------------------------------------------创建表
CREATE TABLE `t_user` (
`USER_ID` int(11) NOT NULL AUTO_INCREMENT,
`USER_NAME` char(30) NOT NULL,
`USER_PASSWORD` char(10) NOT NULL,
PRIMARY KEY (`USER_ID`),
KEY `IDX_NAME` (`USER_NAME`)
) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8
---------------------------------------插入数据
INSERT INTO t_user (USER_ID, USER_NAME, USER_PASSWORD) VALUES (1, 'luoguohui', '123456');
INSERT INTO t_user (USER_ID, USER_NAME, USER_PASSWORD) VALUES (2, 'zhangsan', '123456');
2、Maven工程创建,选择快速框架
Paste_Image.png Paste_Image.png3 输出项目名,包(Packaging,如果只是普通的项目,选jar就好了,如果是web项目就选war,这里是web项目,所以选择war)
Paste_Image.png4、创建好的目录如下:
Paste_Image.png5 、添加包的依赖,编辑pom.xml文件添加如下依赖:
<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.gp6</groupId>
<artifactId>MyMavenProject</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<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>
6、配置文件:
6、1 创建 mybatis包下添加mybatis-config.xml文件(mybatis配置文件):
Paste_Image.png<?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>
6. 2、 创建 properties包下添加jdbc.properties文件(数据源配置文件):
Paste_Image.pngjdbc_driverClassName=com.mysql.jdbc.Driver
jdbc_url=jdbc:mysql://localhost:3306/study
jdbc_username=root
jdbc_password=123456
6. 3、 创建 mapper包下userMapper.xml配置文件(表映射文件):
Paste_Image.png一定要注意<mapper namespace="com.gp6.mapper.UserMapper">这一行的值是否正确
<?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.gp6.mapper.UserMapper">
<!--设置domain类和数据库中表的字段一一对应,注意数据库字段和Entity类中的字段名称不致,此处一定要!-->
<resultMap id="BaseResultMap" type="com.gp6.entity.User">
<id column="USER_ID" property="userId" jdbcType="INTEGER" />
<result column="USER_NAME" property="userName" jdbcType="CHAR" />
<result column="USER_PASSWORD" property="userPassword" 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>
6. 4、 创建 spring配置文件application.xml:
Paste_Image.png<?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">
<!-- 不使用properties来配置 -->
<!-- <property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/study" />
<property name="username" value="root" />
<property name="password" value="123456" /> -->
<!-- 使用properties来配置 ,建议使用-->
<property name="driverClassName">
<value>${jdbc_driverClassName}</value>
</property>
<property name="url">
<value>${jdbc_url}</value>
</property>
<property name="username">
<value>${jdbc_username}</value>
</property>
<property name="password">
<value>${jdbc_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.gp6.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" />
<!-- 如果Mapper.xml与Mapper.class在同一个包下且同名,spring扫描Mapper.class的同时会自动扫描同名的Mapper.xml并装配到Mapper.class。
如果Mapper.xml与Mapper.class不在同一个包下或者不同名,就必须使用配置mapperLocations指定mapper.xml的位置。
此时spring是通过识别mapper.xml中的 <mapper namespace="com.XXX.XXX"> namespace的值来确定对应的Mapper.class的。 -->
<!-- <property name="mapperLocations" value="classpath: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.gp6.service" />
</beans>
7 接口和类的配置:
Paste_Image.png7.1 、com.gp6.entity 下添加User.Java文件:
package com.gp6.entity;
public class User {
private Integer userId;
private String userName;
private String userPassword;
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;
}
}
7.2、com.gp6.mapper下添加Usermapper.java文件:
package com.gp6.mapper;
import com.gp6.entity.User;
public interface UserMapper {
/**
* @param userId
* @return User
*/
public User selectUserById(Integer userId);
}
7.3、com.gp6.service下添加UserService.java接口和UserServiceImpl实现类:
- UserService.java
package com.gp6.service;
import com.gp6.entity.User;
public interface UserService {
public User selectUserById(Integer userId);
}
- UserServiceImpl.java
package com.gp6.service.impl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.gp6.entity.User;
import com.gp6.mapper.UserMapper;
import com.gp6.service.UserService;
@Service
public class UserServiceImpl implements UserService {
@Autowired
UserMapper userMapper;
@Override
public User selectUserById(Integer userId) {
return userMapper.selectUserById(userId);
}
}
8 单元测试
Paste_Image.png8.1 BaseTest
package com.gp6.baseTest;
import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.AbstractJUnit4SpringContextTests;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
//指定bean注入的配置文件
@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 BaseTest extends AbstractJUnit4SpringContextTests{
}
8.2 UserServiceTest
package com.gp6.serviceTest;
import org.springframework.beans.factory.annotation.Autowired;
import org.junit.Test;
import com.gp6.baseTest.BaseTest;
import com.gp6.entity.User;
import com.gp6.service.UserService;
public class UserServiceTest extends BaseTest {
@Autowired
private UserService userService;
@Test
public void selectUserByIdTest(){
User user = userService.selectUserById(1);
System.out.println(user.getUserName() + ":" + user.getUserPassword());
}
}
8.3 运行单元测试,UserServiceTest右键Run As –>Junit Test,运行结果:
Paste_Image.png8.4 添加日志配置
Paste_Image.png- 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://WorkSpace/Study/logs/MyMavenProject/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
到这里配置好spring+mybatis+mysql!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
这里开始添加spirngMVC,并转换maven工程为web项目
9 、转换成web项目:
-
Eclipse
Paste_Image.png -
MyEclipse
将红框里面的勾去掉,确定(OK),然后重新打开刚刚那个页面,把Dynamic web Module勾上,就会看到红框的内容,点击:
Paste_Image.png配置如下,然后点击OK
Paste_Image.png至此,项目已转为WEB项目!
10 配置springmvc
10.1、pom.xml文件添加依赖,修改后配置如下:
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.gp6</groupId>
<artifactId>MyMavenProject</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<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>4.11</junit.version>
<!-- mybatis版本号 -->
<mybatis.version>3.2.1</mybatis.version>
</properties>
<dependencies>
<!-- 添加Spring依赖 -->
<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>
<!-- mysql驱动包 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.29</version>
</dependency>
<!-- javaee-api包 注意和项目使用的JDK版本对应 -->
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>6.0</version>
<scope>provided</scope>
</dependency>
<!-- javaee-web-api包 注意和项目使用的JDK版本对应 -->
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-web-api</artifactId>
<version>6.0</version>
<scope>provided</scope>
</dependency>
</dependencies>
</project>
其实也就增加了下面两个
<!-- javaee-api包 注意和项目使用的JDK版本对应 -->
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>6.0</version>
<scope>provided</scope>
</dependency>
<!-- javaee-web-api包 注意和项目使用的JDK版本对应 -->
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-web-api</artifactId>
<version>6.0</version>
<scope>provided</scope>
</dependency>
10.2、在src/main/resource中添加springmvc文件夹,然后添加文件spring-mvc.xml,内容如下:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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-3.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">
<mvc:annotation-driven />
<!-- 扫描controller(controller层注入) -->
<context:component-scan base-package="com.gp6.controller"/>
<!-- 对模型视图添加前后缀 -->
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:prefix="/WEB-INF/jsp/" p:suffix=".jsp"/>
</beans>
10.3、配置web.xml
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<!-- /*时,匹配不到jsp页面 -->
<url-pattern>/*</url-pattern>
</servlet-mapping>
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
id="WebApp_ID" version="2.5">
<display-name>Archetype Created Web Application</display-name>
<!-- 起始欢迎界面 -->
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<!-- 读取spring配置文件 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:application.xml</param-value>
</context-param>
<!-- 设计路径变量值 -->
<context-param>
<param-name>webAppRootKey</param-name>
<param-value>springmvc.root</param-value>
</context-param>
<!-- Spring字符集过滤器 -->
<filter>
<filter-name>SpringEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>SpringEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- 监听 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- springMVC核心配置 -->
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<!--spingMVC的配置路径 -->
<param-value>classpath:springmvc/spring-mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<!-- 拦截设置 -->
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
<!-- 错误跳转页面 -->
<error-page>
<!-- 路径不正确 -->
<error-code>404</error-code>
<location>/WEB-INF/errorpage/404.jsp</location>
</error-page>
<error-page>
<!-- 没有访问权限,访问被禁止 -->
<error-code>405</error-code>
<location>/WEB-INF/errorpage/405.jsp</location>
</error-page>
<error-page>
<!-- 内部错误 -->
<error-code>500</error-code>
<location>/WEB-INF/errorpage/500.jsp</location>
</error-page>
</web-app>
10.4、添加index.jsp,在src/main/webapp/WEB-INF下新建一个文件夹jsp,添加一个index.jsp,内容如下:
Paste_Image.png<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<html>
<body>
<h2>Hello World!</h2>
用户名: ${user.userName}<br>
密码:${user.userPassword}<br>
</body>
</html>
10.5、写controller
Paste_Image.png在src/main/java下新建一个包com.gp6.controller.然后新建一个类UserController.java,其内容如下
package com.gp6.controller;
import javax.annotation.Resource;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import com.gp6.entity.User;
import com.gp6.service.UserService;
@Controller
public class UserController {
@Resource
private UserService userService;
@RequestMapping("/")
public ModelAndView getIndex(){
ModelAndView modelAndView = new ModelAndView("index");
User user = userService.selectUserById(1);
modelAndView.addObject("user", user);
return modelAndView;
}
}
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