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 + "]";
}
}