SSM整合（传统方式）

于 2018-10-15 11:58:25 发布
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分类专栏： Spring 文章标签： ssm整合
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本文链接：https://blog.youkuaiyun.com/peter824/article/details/83056678

整合SSM

在这里插入图片描述

一、导入jar包

导入spring、springmvc、mybatis、c3p0、ehcache、mysql的jar包。

aopalliance-.jar
asm-4.2.jar
aspectjrt.jar
aspectjtools.jar
aspectjweaver.jar
c3p0-0.9.5.2.jar
c3p0-oracle-thin-extras-0.9.5.2.jar
cglib-3.1.jar
commons-logging-1.2.jar
ehcache-core-2.6.8.jar
jstl.jar
log4j-1.2.17.jar
log4j-api-2.2.jar
log4j-core-2.2.jar
mchange-commons-java-0.2.11.jar
mybatis-3.3.0.jar
mybatis-ehcache-1.0.3.jar
mybatis-spring-1.2.3.jar
mysql-connector-java-5.1.46.jar
org.aspectj.matcher.jar
slf4j-api-1.7.12.jar
slf4j-log4j12-1.7.12.jar
spring-aop-4.2.5.RELEASE.jar
spring-aspects-4.2.5.RELEASE.jar
spring-beans-4.2.5.RELEASE.jar
spring-context-4.2.5.RELEASE.jar
spring-context-support-4.2.5.RELEASE.jar
spring-core-4.2.5.RELEASE.jar
spring-expression-4.2.5.RELEASE.jar
spring-instrument-4.2.5.RELEASE.jar
spring-instrument-tomcat-4.2.5.RELEASE.jar
spring-jdbc-4.2.5.RELEASE.jar
spring-orm-4.2.5.RELEASE.jar
spring-oxm-4.2.5.RELEASE.jar
spring-tx-4.2.5.RELEASE.jar
spring-web-4.2.5.RELEASE.jar
spring-webmvc-4.2.5.RELEASE.jar
standard.jar

二、添加配置文件

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="http://xmlns.jcp.org/xml/ns/javaee"
	xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
	id="WebApp_ID" version="3.1">
	<display-name>SSMDemo</display-name>
	<welcome-file-list>
		<welcome-file>index.html</welcome-file>
		<welcome-file>index.htm</welcome-file>
		<welcome-file>index.jsp</welcome-file>
		<welcome-file>default.html</welcome-file>
		<welcome-file>default.htm</welcome-file>
		<welcome-file>default.jsp</welcome-file>
	</welcome-file-list>

	<!-- 1. 配置 Spring 的核心监听器 -->
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
	<!-- 配置spring的applicationContext.xml -->
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath:config/spring.xml</param-value>
	</context-param>

	<!-- 2. 配置字符编码过滤器，必须在所有的filter最前面 -->
	<filter>
		<filter-name>CharacterEncodingFilter</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>
	</filter>
	<filter-mapping>
		<filter-name>CharacterEncodingFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
	<!-- 3. 配置可以把 POST 请求转为 DELETE 或 POST 请求 -->
	<filter>
		<filter-name>HiddenHttpMethodFilter</filter-name>
		<filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
	</filter>
	<filter-mapping>
		<filter-name>HiddenHttpMethodFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>

	<!-- 4. 配置 SpringMVC 的DispatcherServlet -->
	<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:config/spring-mvc.xml</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>DispatcherServlet</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>
</web-app>

spring配置文件

<?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:aop="http://www.springframework.org/schema/aop"
	xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
		http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.2.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd
		http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd">

	<!-- 1. 配置自动扫描的包 -->
	<context:component-scan base-package="com.znsd.ssm">
		<!-- 过滤SpringMVC的注解不扫描 -->
		<context:exclude-filter type="annotation"
			expression="org.springframework.stereotype.Controller" />
		<context:exclude-filter type="annotation"
			expression="org.springframework.web.bind.annotation.ControllerAdvice" />
	</context:component-scan>

	<!-- 2. 配置数据源 -->
	<context:property-placeholder location="classpath:config/db.properties" />
	<!-- C3P0连接池 -->
	<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
		<property name="user" value="${jdbc.username}"></property>
		<property name="password" value="${jdbc.password}"></property>
		<property name="driverClass" value="${jdbc.driverClass}"></property>
		<property name="jdbcUrl" value="${jdbc.url}"></property>
	</bean>

	<!--4、Mybatis配置文件-->
	<!-- Spring扫描所有的mapper文件 -->
	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<property name="dataSource" ref="dataSource" />
		<!-- 加载mybatis配置文件 -->
		<property name="configLocation" value="classpath:config/mybatis-config.xml" />
		<!-- Mappper所在的包路径 -->
		<property name="mapperLocations" value="classpath:com/znsd/ssm/mapper/*.xml" />
	</bean>
	
	<!-- Spring 扫描DAO包 -->
	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<!-- DAO包所在的包路径 -->
		<property name="basePackage" value="com.znsd.ssm.dao" />
		<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
	</bean>

	<!-- 4. 配置事务管理 -->
	<bean id="transactionManager"
		class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource" ref="dataSource" />
	</bean>

	<!-- 5. 配置支持注解的事务 -->
	<tx:annotation-driven transaction-manager="transactionManager" />
</beans>

db.properties

jdbc.driverClass=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/mybatis
jdbc.username=root
jdbc.password=root

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>
	<!-- 通过全局配置文件设置延迟加载-->
	<settings>
		<!-- 全局启用或禁用延迟加载。当禁用时，所有关联对象都会即时加载。 -->
		<setting name="lazyLoadingEnabled" value="true" />
		<!-- 当启用时，有延迟加载属性的对象在被调用时将会完全加载任意属性。否则，每种属性将会按需要加载。 -->
		<setting name="aggressiveLazyLoading" value="false" />
		<!-- 开启二级缓存 -->
		<setting name="cacheEnabled" value="true"></setting>
	</settings>
</configuration>

mybatis-ehcache.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>
	<!-- 通过全局配置文件设置延迟加载-->
	<settings>
		<!-- 全局启用或禁用延迟加载。当禁用时，所有关联对象都会即时加载。 -->
		<setting name="lazyLoadingEnabled" value="true" />
		<!-- 当启用时，有延迟加载属性的对象在被调用时将会完全加载任意属性。否则，每种属性将会按需要加载。 -->
		<setting name="aggressiveLazyLoading" value="false" />
		<!-- 开启二级缓存 -->
		<setting name="cacheEnabled" value="true"></setting>
	</settings>
</configuration>

ehcache.xml

<ehcache>
	<diskStore path="java.io.tmpdir" />

	<defaultCache maxElementsInMemory="10000" eternal="false"
		timeToIdleSeconds="120" timeToLiveSeconds="120" overflowToDisk="true" />

	<cache name="sampleCache1" maxElementsInMemory="10000" eternal="false"
		timeToIdleSeconds="300" timeToLiveSeconds="600" overflowToDisk="true" />

	<cache name="sampleCache2" maxElementsInMemory="1000" eternal="true"
		timeToIdleSeconds="0" timeToLiveSeconds="0" overflowToDisk="false" />

	<cache name="fiveMinsCache" maxElementsInMemory="10000"
		timeToLiveSeconds="300" eternal="false" overflowToDisk="false"
		diskSpoolBufferSizeMB="30" maxElementsOnDisk="10000000"
		diskPersistent="false" diskExpiryThreadIntervalSeconds="120"
		memoryStoreEvictionPolicy="LRU" statistics="false" clearOnFlush="true" />
</ehcache>

spring-mvc.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: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-4.2.xsd
		http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd">

	<!-- 1. 配置自动扫描的包 -->
	<context:component-scan base-package="com.znsd.ssm" use-default-filters="false">
		<!-- 这两个注解交给SpringMVC管理，其他的交给 IOC 容器 -->
		<context:include-filter type="annotation"
			expression="org.springframework.stereotype.Controller" />
		<context:include-filter type="annotation"
		expression="org.springframework.web.bind.annotation.ControllerAdvice" />
	</context:component-scan>

	<!-- 2. 配置视图解析器 -->
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/WEB-INF/views/" />
		<property name="suffix" value=".jsp" />
	</bean>

	<mvc:default-servlet-handler />
	<mvc:annotation-driven></mvc:annotation-driven>
	<!--引入ehcache配置文件-->
	<import resource="classpath:config/spring-ehcache.xml"/>
</beans>

log4j.properties

log4j.rootLogger=debug,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

数据表

#班级表
DROP TABLE IF EXISTS `tb_clazz`;
CREATE TABLE `tb_clazz` (
  `c_id` int(11) NOT NULL AUTO_INCREMENT,
  `c_name` varchar(20) DEFAULT NULL,
  PRIMARY KEY (`c_id`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8;

#学生表
DROP TABLE IF EXISTS `tb_student`;
CREATE TABLE `tb_student` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(20) DEFAULT NULL,
  `pass` varchar(20) DEFAULT NULL,
  `sex` varchar(2) DEFAULT NULL,
  `address` varchar(100) DEFAULT NULL,
  `c_id` int(11) DEFAULT NULL,
  PRIMARY KEY (`id`),
  KEY `fk_cid` (`c_id`),
  CONSTRAINT `fk_cid` FOREIGN KEY (`c_id`) REFERENCES `tb_clazz` (`c_id`)
) ENGINE=InnoDB AUTO_INCREMENT=13 DEFAULT CHARSET=utf8;

实体层

Clazz.java

package com.znsd.ssm.entities;

import java.io.Serializable;

import org.springframework.stereotype.Component;

@Component
public class Clazz implements Serializable{
	public Clazz() {
	}
	public Clazz(Integer clsid, String clsName) {
		this.clsid = clsid;
		this.clsName = clsName;
	}
	private Integer clsid;
	private String clsName;
	
	public Integer getClsid() {
		return clsid;
	}
	public void setClsid(Integer clsid) {
		this.clsid = clsid;
	}
	public String getClsName() {
		return clsName;
	}
	public void setClsName(String clsName) {
		this.clsName = clsName;
	}
	@Override
	public String toString() {
		return "Clazz [clsid=" + clsid + ", clsName=" + clsName + "]";
	}
}

Student.java

package com.znsd.ssm.entities;

import java.io.Serializable;

import org.springframework.stereotype.Component;

@Component
public class Student implements Serializable{
	public Student() {
	}
	public Student(String name, String pass, String sex, String address) {
		this.name = name;
		this.pass = pass;
		this.sex = sex;
		this.address = address;
	}
	private Integer id;
	private String name;
	private String pass;
	private String sex;
	private String address;
	private Clazz clazz;
	
	public Integer getId() {
		return id;
	}
	public void setId(Integer id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getPass() {
		return pass;
	}
	public void setPass(String pass) {
		this.pass = pass;
	}
	public String getSex() {
		return sex;
	}
	public void setSex(String sex) {
		this.sex = sex;
	}
	public String getAddress() {
		return address;
	}
	public void setAddress(String address) {
		this.address = address;
	}
	public Clazz getClazz() {
		return clazz;
	}
	public void setClazz(Clazz clazz) {
		this.clazz = clazz;
	}
	@Override
	public String toString() {
		return "Student [id=" + id + ", name=" + name + ", pass=" + pass + ", sex=" + sex + ", address=" + address
				+ "]";
	}
}

Dao层

ClazzMapper.java

package com.znsd.ssm.dao;

import java.util.List;

import com.znsd.ssm.entities.Clazz;

public interface ClazzMapper {
	public List<Clazz> getClazzList();
	
	public Clazz getClazzOne(Integer clsid);
}

ClazzMapper.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">
<mapper namespace="com.znsd.ssm.dao.ClazzMapper">
	<resultMap type="com.znsd.ssm.entities.Clazz" id="clazzResutMap">
		<id column="c_id" property="clsid" />
		<result column="c_name" property="clsName"/>
	</resultMap>

	<select id="getClazzList" resultMap="clazzResutMap">
		select * from tb_clazz c;
	</select>
	
	<select id="getClazzOne" resultMap="clazzResutMap">
		select * from tb_clazz where c_id = #{id}
	</select>
	
</mapper>

StudentMapper.java

package com.znsd.ssm.dao;

import java.util.List;

import com.znsd.ssm.entities.Student;


public interface StudentMapper {
	public List<Student> selectStudentAll();
	
	public Student selectStudentOne(Integer id);
	
	public int addStudent(Student student);
	
	public int updateStudent(Student student);
	
	public int deleteStudent(Integer id);
	
	public List<Student> selectStudentByListId(List<Integer> ids);
}

StudentMapper.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">
<mapper namespace="com.znsd.ssm.dao.StudentMapper">
	<cache type="org.mybatis.caches.ehcache.EhcacheCache"/>

	<resultMap type="com.znsd.ssm.entities.Student" id="studentResultMap">
		<id column="id" property="id"/>
		<result column="name" property="name"/>
		<result column="pass" property="pass"/>
		<result column="sex" property="sex"/>
		<result column="address" property="address"/>
		<!-- 直接在resultMap中强行配置映射属性(不推荐) -->
		<result column="c_id" property="clazz.clsid"/>
		<result column="c_name" property="clazz.clsName"/>

		<!-- 通过association来设置关联关系，通过resultMap来引用clazz映射文件中配置resultMap(推荐) -->
<!-- 		<association property="clazz" javaType="com.znsd.mybatis.entities.Clazz" -->
<!-- 		 resultMap="com.znsd.mybatis.dao.ClazzMapper.clazzResutMap"> -->
<!-- 			<id column="c_id" property="clsid" /> -->
<!-- 			<result column="c_name" property="clsName"/> -->
<!-- 		</association> -->
		<!-- 通过association来设置分布查询，先查询student对象，然后再通过select配置查询另一个表的属性 -->
<!-- 		<association property="clazz" column="c_id" fetchType="lazy" -->
<!-- 			select="com.znsd.mybatis.dao.ClazzMapper.getClazzOne"> -->
<!-- 		</association> -->
	</resultMap>


	<select id="selectStudentAll" resultMap="studentResultMap">
		select * from tb_student s inner join tb_clazz c on s.c_id = c.c_id
	</select>

	<select id="selectStudentOne" parameterType="int" resultMap="studentResultMap">
		select * from tb_student s where id = #{id}
	</select>
	
	<select id="selectStudentByClsId" parameterType="int" resultMap="studentResultMap">
		select * from tb_student s where c_id = #{c_id}
	</select>

	<insert id="addStudent" useGeneratedKeys="true" keyProperty="id">
		insert into tb_student (name,pass,sex,address)
		values(#{name},#{pass},#{sex},#{address})
	</insert>

	<update id="updateStudent" >
		update tb_Student
		<!-- 可以根据条件添加set，并且将最后一个,条件去掉 -->
		<set>
			<if test="name != null and name != ''">
				name=#{name},
			</if>
			<if test="pass != null and pass != ''">
				pass=#{pass},
			</if>
			<if test="sex != null and sex != ''">
				sex=#{sex},
			</if>
			<if test="address != null and address != ''">
				address=#{address},
			</if>
		</set>
		where id = #{id}
	</update>

	<delete id="deleteStudent" parameterType="int">
		delete from tb_Student where id = #{id}
	</delete>

	<select id="selectStudentByListId" resultMap="studentResultMap" >
		select * from tb_student where id in
		<foreach collection="list" item="item" index="i" open="(" close=")" separator=",">
			${item}
		</foreach>
	</select>
</mapper>

Service层

package com.znsd.ssm.service;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.stereotype.Service;

import com.znsd.ssm.dao.StudentMapper;
import com.znsd.ssm.entities.Student;

@Service
@Cacheable(value={"fiveMinsCache"})
public class StudentService {
	@Autowired
	private StudentMapper studentMapper;
	
	public List<Student> getList(){
		return studentMapper.selectStudentAll();
	}
}

Controllor层

StudentControllor.java

package com.znsd.ssm.controllors;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import com.znsd.ssm.entities.Student;
import com.znsd.ssm.service.StudentService;

@Controller
public class StudentControllor {
	@Autowired
	private StudentService studentService;
	
	@RequestMapping("/getlist")
	public String getList(){
		List<Student> list = studentService.getList();
		System.out.println("----------------------------" + list.size());
		return "list";
	}
}

View层

在views文件夹中添加测试list.jsp页面

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