spring+springMvc+mybatis+Maven整合使用例子

其他 2018-08-29 11:20:58 阅读次数: 0

首先创建maven项目

如果自己不想更改目录什么的，就点击next

本界面界面选择上面带红线和圈出的选项。

带红线的需要自己填写。

创建完成后在java Build Path中需要配置一下Server Runtime，先点击add library

点击server runtime后选择自己想要的 apache tomcat版本。

maven项目结构

当项目创建和配置完成后现在配置pom.xml文件和需要的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.caidonglun</groupId>
  <artifactId>ssmXueXi</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>ssmXueXi Maven Webapp</name>
  <url>http://maven.apache.org</url>
   <properties>
        <!-- Spring版本号 -->
        <spring.version>4.3.8.RELEASE</spring.version>
    </properties>
    <dependencies>
        <!-- Spring相关包 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</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-web</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-jdbc</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <!-- AOP相关包 -->
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjrt</artifactId>
            <version>1.8.0</version>
        </dependency>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.8.0</version>
        </dependency>

        <!-- MyBatis相关包 -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.3.0</version>
        </dependency>
        <!-- MySQL相关包 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.26</version>
        </dependency>
        <!-- 数据库连接池 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.0.20</version>
        </dependency>

        <!-- Spring集成MyBatis -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.2.3</version>
        </dependency>

        <!-- JSP标准标签库 -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>

        <!-- 日志相关包 -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.21</version>
        </dependency>

        <!-- 单元测试相关包 -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>
        
        <!-- json-lib -->
        <dependency>
    <groupId>net.sf.json-lib</groupId>
    <artifactId>json-lib</artifactId>
    <version>2.4</version>
    <classifier>jdk15</classifier>
</dependency>
    </dependencies>
  <build>
    <finalName>ssmXueXi</finalName>
    <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
        </plugins>
  </build>
</project>

下面是springmvc.xml文件的配置

<?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" 
    xmlns:mvc="http://www.springframework.org/schema/mvc"
     xsi:schemaLocation="
     
        http://www.springframework.org/schema/beans 
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context 
        http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/tx 
		http://www.springframework.org/schema/tx/spring-tx.xsd
        http://www.springframework.org/schema/aop 
        http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc.xsd
        ">
        
        <context:property-placeholder  location="classpath:jdbc.properties"/>
        
        <!-- <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        	<property name="driverClass" value="${jdbc.driver}"></property>
        	<property name="jdbcUrl" value="${jdbc.url}"></property>
        	<property name="user" value="${jdbc.user}"></property>
        	<property name="password" value="${jdbc.password}"></property>
        </bean> -->
        
        <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <property name="password" value="${jdbc.password}" />
        <property name="username" value="${jdbc.user}" />
        <property name="url" value="${jdbc.url}" />
        
    </bean>
        
        <bean id="SqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
        	<property name="dataSource" ref="dataSource"></property>
        	<property name="configLocation" value="classpath:mybatis.xml"></property>
        </bean>
        
        <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        	<property name="basePackage" value="com.caidonglun.dao"></property>
        	<property name="sqlSessionFactoryBeanName" value="SqlSessionFactoryBean"></property>
        </bean>
        
        
            <!-- 启动自动扫描 -->
    <context:component-scan base-package="com.caidonglun.*" />

    <!-- 注册MVC注解驱动 -->
    <mvc:annotation-driven />

    <!-- 静态资源可访问的设置方式 -->
    <mvc:default-servlet-handler />

    <!-- 配置视图解析器，可以显式设置，也可以不设置，不设置会依据SpringMVC的默认设置 -->
 <!--    <bean id="viewResolver"
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/" />
        <property name="suffix" value=".jsp" />
    </bean> -->
    
    
     <!-- 开启AOP注解扫描 -->
    <aop:aspectj-autoproxy proxy-target-class="true" />

    <!-- 事务管理器，依赖于数据源 -->
    <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    </bean>
    
    <!-- 编写通知：对事务进行增强（通知），需要编写对切入点和具体执行事务细节 -->
    <tx:advice id="txAdvice" transaction-manager="txManager">
        <!-- <tx:attributes>
            
                为切入点方法添加事务详情
                name：方法名，*表示任意方法名称
                propagation：设置传播行为
                isolation：设置隔离级别
                read-only：是否只读
           
            <tx:method name="add*" propagation="REQUIRED" isolation="DEFAULT" read-only="false" rollback-for="Exception" />
            <tx:method name="delete*" propagation="REQUIRED" isolation="DEFAULT" read-only="false" rollback-for="Exception" />
            <tx:method name="update*" propagation="REQUIRED" isolation="DEFAULT" read-only="false" rollback-for="Exception" />
        </tx:attributes> -->
    </tx:advice>
    
    <!-- 设置AOP，让Spring自动对目标生成代理，需要使用AspectJ表达式 -->
    <aop:config proxy-target-class="true">
        <!-- 切面：整合切入点和通知 -->
        <aop:advisor advice-ref="txAdvice" pointcut="within(cn.temptation.web..*)" />
    </aop:config>
    
        </beans>

然后是mybatis.xml文件的配置

<?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 >
	<package name="com.caidonglun.entity"/>
</typeAliases>
<!-- <mappers>
	<package name="com.caidonglun.dao"/>
</mappers> -->
<mappers>
	<mapper url="classpath:Mapper.xml"/>
</mappers>
</configuration>

然后是Mapper.xml文件编写，简单的写了一个查询所有的操作

<?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.caidonglun.dao.StudentDao">
    <select id="selectAll" parameterType="Student" resultType="Student">
        SELECT * FROM student
    </select>
</mapper>

然后配置log4j.properties

#USE THIS SETTING FOR OUTPUT MYBATIS`s SQL ON THE CONSOLE
log4j.rootLogger=DEBUG, Console

#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

然后配置jdbc.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://127.0.0.1:3306/test
jdbc.user=root
jdbc.password=123456

然后配置web.xml，在web.xml中配置的内容相当重要。

<?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" 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>ssmXueXi</display-name>
  
  
   <context-param>
  	<param-name>contextConfigLocation</param-name>
  	<param-value>classpath:springmvc.xml</param-value>
  </context-param>
  <listener>
  	<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  
  
  <filter>
  	<filter-name>EncodingFilter</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>EncodingFilter</filter-name>
  	<url-pattern>/*</url-pattern>
  </filter-mapping>
  
  <servlet>
  	<servlet-name>DispatcherServlet</servlet-name>
  	<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  	<init-param>
  		<param-name>contextConfigLocation</param-name>
  		<param-value>classpath:springmvc.xml</param-value>
  	</init-param>
  	<load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
  	<servlet-name>DispatcherServlet</servlet-name>
  	<url-pattern>*.do</url-pattern>
  </servlet-mapping>
  
  
</web-app>

接下来是java代码StudentController.java

import java.util.List;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import com.caidonglun.entity.Student;
import com.caidonglun.service.StudentService;

import net.sf.json.JSONArray;

@Controller
public class StudentController {

	Logger logger=LoggerFactory.getLogger(getClass());
	
	@Autowired
	StudentService service;
	
	@RequestMapping("/showAll.do")
	@ResponseBody
	public String showAllStudent() {
		List<Student> findAll = service.findAll();
		System.out.println("findAllReturn="+findAll);
		logger.info("findAll="+findAll);
		
		return JSONArray.fromObject(findAll).toString();
		
	}
	
}

然后是StudentService.java

@Service
public class StudentService {

	@Autowired
	StudentDao dao;
	
	public List<Student> findAll() {
		
		return dao.selectAll();
		
	}
	
}

然后是StudentDao.java

import java.util.List;

import com.caidonglun.entity.Student;

public interface StudentDao {

	List<Student> selectAll();

}

然后是Student.java

public class Student {

	private String username;
	private String password;
	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 Student(String username, String password) {
		super();
		this.username = username;
		this.password = password;
	}
	public Student() {
		super();
		// TODO Auto-generated constructor stub
	}
	@Override
	public String toString() {
		return "Student [username=" + username + ", password=" + password + "]";
	}
	
}

运行后的项目入下：默认访问的index.jsp

启动成功后访问http://localhost:8080/ssmXueXi/showAll.do得到如下结果：

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