好久就想着好好搭建一个ssm框架，自己以后用也方便吧，但是最近的事真的是很多，很多事情都没有去干，有时候自己会怀疑一下人生自己该不该去做程序员，我是一个没毕业的学生，找工作真的是四处碰壁，感觉自己好难混，一个暑假换了3个公司。我其实就想找一个公司能干自己想干的技术，能学到自己想学到的东西，可是我发现太难了，几乎没有这样的公司。所以说在你不是很牛逼的时候，人得适应公司，而不是公司适应你。第一个公司的一个老程序员和我去公司必须能吃上饭，能吃上饭再想其他的东西，而我是个90后，我明白我的性格，一遇到难题就想逃避，可是逃避是最不好的道路，也是不能走的道路。希望刚毕业的同学能找到一个适合自己的工作。
一、我用的是idea
二、首先创建一个maven项目，结构如下:
三、开始写配置文件
pom文件
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<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.xxx.demo</groupid>
<artifactid>ssm</artifactid>
<packaging>war</packaging>
<version>1.0-snapshot</version>
<name>ssm maven webapp</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceencoding>utf-8</project.build.sourceencoding>
<project.reporting.outputencoding>utf-8</project.reporting.outputencoding>
<!-- spring版本号 -->
<spring.version>4.2.6.release</spring.version>
<!-- mybatis版本号 -->
<mybatis.version>3.2.8</mybatis.version>
<!-- mysql驱动版本号 -->
<mysql-driver.version>5.1.29</mysql-driver.version>
<!-- log4j日志包版本号 -->
<slf4j.version>1.7.18</slf4j.version>
<log4j.version>1.2.17</log4j.version>
</properties>
<dependencies>
<!-- 添加jstl依赖 -->
<dependency>
<groupid>jstl</groupid>
<artifactid>jstl</artifactid>
<version>1.2</version>
</dependency>
<dependency>
<groupid>javax</groupid>
<artifactid>javaee-api</artifactid>
<version>7.0</version>
</dependency>
<!-- 添加junit4依赖 -->
<dependency>
<groupid>junit</groupid>
<artifactid>junit</artifactid>
<version>4.11</version>
<!-- 指定范围，在测试时才会加载 -->
<scope>test</scope>
</dependency>
<!-- 添加spring核心依赖 -->
<dependency>
<groupid>org.springframework</groupid>
<artifactid>spring-core</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-oxm</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>${spring.version}</version>
</dependency>
<dependency>
<groupid>org.springframework</groupid>
<artifactid>spring-webmvc</artifactid>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupid>org.springframework</groupid>
<artifactid>spring-context</artifactid>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupid>org.springframework</groupid>
<artifactid>spring-aspects</artifactid>
<version>4.3.8.release</version>
</dependency>
<dependency>
<groupid>org.springframework</groupid>
<artifactid>spring-context-support</artifactid>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupid>org.springframework</groupid>
<artifactid>spring-aop</artifactid>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupid>org.springframework</groupid>
<artifactid>spring-test</artifactid>
<version>${spring.version}</version>
</dependency>
<!-- 添加mybatis依赖 -->
<dependency>
<groupid>org.mybatis</groupid>
<artifactid>mybatis</artifactid>
<version>${mybatis.version}</version>
</dependency>
<!-- 添加mybatis/spring整合包依赖 -->
<dependency>
<groupid>org.mybatis</groupid>
<artifactid>mybatis-spring</artifactid>
<version>1.2.2</version>
</dependency>
<!-- 添加mysql驱动依赖 -->
<dependency>
<groupid>mysql</groupid>
<artifactid>mysql-connector-java</artifactid>
<version>${mysql-driver.version}</version>
</dependency>
<!-- 添加数据库连接池依赖 -->
<dependency>
<groupid>com.alibaba</groupid>
<artifactid>druid</artifactid>
<version>1.1.3</version>
</dependency>
<!-- 添加fastjson -->
<dependency>
<groupid>com.alibaba</groupid>
<artifactid>fastjson</artifactid>
<version>1.1.41</version>
</dependency>
<!-- 添加日志相关jar包 -->
<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 -->
<!-- 映入json -->
<dependency>
<groupid>org.codehaus.jackson</groupid>
<artifactid>jackson-mapper-asl</artifactid>
<version>1.9.13</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->
<dependency>
<groupid>com.fasterxml.jackson.core</groupid>
<artifactid>jackson-core</artifactid>
<version>2.8.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
<dependency>
<groupid>com.fasterxml.jackson.core</groupid>
<artifactid>jackson-databind</artifactid>
<version>2.8.0</version>
</dependency>
<dependency>
<groupid>commons-fileupload</groupid>
<artifactid>commons-fileupload</artifactid>
<version>1.3.1</version>
</dependency>
<dependency>
<groupid>commons-io</groupid>
<artifactid>commons-io</artifactid>
<version>2.4</version>
</dependency>
<dependency>
<groupid>commons-codec</groupid>
<artifactid>commons-codec</artifactid>
<version>1.9</version>
</dependency>
<dependency>
<groupid>org.aspectj</groupid>
<artifactid>aspectjweaver</artifactid>
<version>1.8.10</version>
</dependency>
</dependencies>
<build>
<finalname>ssm</finalname>
</build>
</project>
db.properties
db.driver=com.mysql.jdbc.driver db.url=jdbc:mysql://localhost:3306/myuser?useunicode=true&characterencoding=utf-8&zerodatetimebehavior=converttonull db.username=root db.password=xxxxxxxxxxxxx #定义初始连接数 db.initialsize=1 #定义最大连接数 db.maxactive=20 #定义最大空闲 db.maxidle=20 #定义最小空闲 db.minidle=1 #定义最长等待时间 db.maxwait=60000 #使用非公平锁 db.useunfairlock=true #配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 db.timebetweenevictionrunsmillis=60000 #配置一个连接在池中最小生存的时间，单位是毫秒 db.minevictableidletimemillis=300000 db.validationquery=select 'x' #申请连接的时候检测，如果空闲时间大于timebetweenevictionrunsmillis，执行validationquery检测连接是否有效。 db.testwhileidle=true #申请连接时执行validationquery检测连接是否有效 db.testonborrow=false #归还连接时执行validationquery检测连接是否有效 db.testonreturn=false #打开pscache，并且指定每个连接上pscache的大小 db.poolpreparedstatements=true db.maxopenpreparedstatements=20 #配置监控统计拦截的filters，去掉后监控界面sql无法统计 db.filters=start
log4j.properties
log4j.rootlogger=debug,console,fileout
log4j.addivity.org.apache=true
# console 打印到控制台
log4j.appender.console=org.apache.log4j.consoleappender
log4j.appender.threshold=debug
log4j.appender.console.target=system.out
log4j.appender.console.layout=org.apache.log4j.patternlayout
log4j.appender.console.layout.conversionpattern=[%-5p] %d{yyyy-mm-dd hh\:mm\:ss} \:%m%n
#
# fileout 打印到 <span style="font-family: arial, helvetica, sans-serif;">d\:\\report.log</span>
log4j.appender.fileout=org.apache.log4j.rollingfileappender
log4j.appender.fileout.file=d\:\\report.log
log4j.appender.fileout.layout=org.apache.log4j.patternlayout
log4j.appender.fileout.maxfilesize=100000kb
log4j.appender.fileout.append=true
#log4j.appender.console.layout.conversionpattern=[framework] %d \u2013 %c -%-4r [%t] %-5p %c %x \u2013 %m%n
log4j.appender.fileout.layout.conversionpattern=[%-5p]_%d{yyyy-mm-dd hh\:mm\:ss} \:%m%n
usermapper.xml配置
<?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.ssm.dao.userdao">
<resultmap type="com.ssm.pojo.user" id="user">
<id column="id" property="id"/>
<result column="username" property="username" />
<result column="password" property="password"/>
</resultmap>
<select id="seleceuserbyid" parametertype="int" resultmap="user">
select * from t_user where id=#{id}
</select>
</mapper>
sp-mybatis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"
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">
<!--扫描数据库配置文件-->
<context:property-placeholder location="classpath:db.properties"></context:property-placeholder>
<!-- 第二种方式：加载多个properties文件
<bean id="configproperties" class="org.springframework.beans.factory.config.propertiesfactorybean">
<property name="locations">
<list>
<value>classpath:jdbc.properties</value>
<value>classpath:common.properties</value>
</list>
</property>
<property name="fileencoding" value="utf-8"/>
</bean>
<bean id="propertyconfigurer" class="org.springframework.beans.factory.config.preferencesplaceholderconfigurer">
<property name="properties" ref="configproperties"/>
</bean>
-->
<!--druid配置数据源-->
<bean id="datasource" class="com.alibaba.druid.pool.druiddatasource">
<property name="driverclassname" value="${db.driver}"></property>
<property name="url" value="${db.url}"></property>
<property name="username" value="${db.username}"></property>
<property name="password" value="${db.password}"></property>
<property name="initialsize" value="${db.initialsize}"/><!-- 配置初始化连接池数量-->
<property name="minidle" value="${db.minidle}"/><!-- 配置最小连接池数量-->
<property name="maxactive" value="${db.maxactive}"/><!-- 配置最大连接池数量-->
<property name="maxwait" value="${db.maxwait}"/><!-- 配置获取连接等待超时的时间 单位毫秒-->
<property name="useunfairlock" value="${db.useunfairlock}"/><!--使用非公平锁-->
<property name="timebetweenevictionrunsmillis"
value="${db.timebetweenevictionrunsmillis}"/><!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->
<property name="minevictableidletimemillis"
value="${db.minevictableidletimemillis}"/><!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->
<property name="validationquery" value="${db.validationquery}"/><!--用来检测连接是否有效的sql，要求是一个查询语句。-->
<property name="testwhileidle"
value="${db.testwhileidle}"/><!--申请连接的时候检测，如果空闲时间大于timebetweenevictionrunsmillis，执行validationquery检测连接是否有效。-->
<property name="testonborrow" value="${db.testonborrow}"/><!--申请连接时执行validationquery检测连接是否有效，-->
<property name="testonreturn" value="${db.testonreturn}"/><!--归还连接时执行validationquery检测连接是否有效，-->
<property name="poolpreparedstatements"
value="${db.poolpreparedstatements}"/><!-- 打开pscache，并且指定每个连接上pscache的大小 -->
<property name="maxopenpreparedstatements" value="${db.maxopenpreparedstatements}"/>
<property name="filters" value="${db.filters}"/><!-- 配置监控统计拦截的filters，去掉后监控界面sql无法统计 -->
</bean>
<!-- mybatis和spring完美整合，不需要mybatis的配置映射文件 -->
<bean id="sqlsessionfactory" class="org.mybatis.spring.sqlsessionfactorybean">
<property name="datasource" ref="datasource"></property>
<property name="mapperlocations" value="classpath:mapper/*.xml"></property>
</bean>
<!-- dao接口所在包名，spring会自动查找其下的类 -->
<bean class="org.mybatis.spring.mapper.mapperscannerconfigurer">
<property name="basepackage" value="com.ssm.dao"/>
<property name="sqlsessionfactorybeanname" value="sqlsessionfactory"></property>
</bean>
</beans>
sp-service.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" 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"> <context:component-scan base-package="com.ssm.service"> </context:component-scan> </beans>
sp-trans.xml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:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemalocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.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">
<!-- 配置事务管理器 -->
<bean id="transactionmanager"
class="org.springframework.jdbc.datasource.datasourcetransactionmanager">
<property name="datasource" ref="datasource" />
</bean>
<!-- 注解方式配置事务 -->
<tx:annotation-driven transaction-manager="transactionmanager" />
<!-- 拦截器方式配置事物 -->
<tx:advice id="transactionadvice" transaction-manager="transactionmanager">
<tx:attributes>
<!--required支持当前存在的事务，如果没有的话句创建一个新的事务
propagation_required：支持当前事务，如果当前没有事务，就新建一个事务。这是最常见的选择。
supports：支持当前事务，如果当前没有事务，就以非事务方式执行。
mandatory：支持当前事务，如果当前没有事务，就抛出异常。
requires_new：新建事务，如果当前存在事务，把当前事务挂起。
not_supported：以非事务方式执行操作，如果当前存在事务，就把当前事务挂起。
never：以非事务方式执行，如果当前存在事务，则抛出异常。
nested：支持当前事务，如果当前事务存在，则执行一个嵌套事务（还不是太明白），如果当前没有事务，就新建一个事务。
-->
<tx:method name="add*" propagation="required" />
<tx:method name="append*" propagation="required" />
<tx:method name="insert*" propagation="required" />
<tx:method name="save*" propagation="required" />
<tx:method name="update*" propagation="required" />
<tx:method name="modify*" propagation="required" />
<tx:method name="edit*" propagation="required" />
<tx:method name="delete*" propagation="required" />
<tx:method name="remove*" propagation="required" />
<tx:method name="repair" propagation="required" />
<tx:method name="delandrepair" propagation="required" />
<tx:method name="get*" propagation="supports" />
<tx:method name="find*" propagation="supports" />
<tx:method name="load*" propagation="supports" />
<tx:method name="search*" propagation="supports" />
<tx:method name="datagrid*" propagation="supports" />
<tx:method name="*" propagation="supports" />
</tx:attributes>
</tx:advice>
<aop:config>
<aop:pointcut id="transactionpointcut" expression="execution(* com.ssm.service..*.*(..))" />
<aop:advisor pointcut-ref="transactionpointcut"
advice-ref="transactionadvice" />
</aop:config>
<!-- 配置druid监控spring jdbc -->
<bean id="druid-stat-interceptor"
class="com.alibaba.druid.support.spring.stat.druidstatinterceptor">
</bean>
<bean id="druid-stat-pointcut" class="org.springframework.aop.support.jdkregexpmethodpointcut"
scope="prototype">
<property name="patterns">
<list>
<value>com.ssm.service.*</value>
</list>
</property>
</bean>
<aop:config>
<aop:advisor advice-ref="druid-stat-interceptor" pointcut-ref="druid-stat-pointcut" />
</aop:config>
</beans>
springmvc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: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/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> <!--扫描controller--> <context:component-scan base-package="com.ssm.controller"></context:component-scan> <!--mvc驱动--> <mvc:annotation-driven></mvc:annotation-driven> <!--视图解析器--> <bean class="org.springframework.web.servlet.view.internalresourceviewresolver"> <property name="prefix" value="/web-inf/jsps"></property> <property name="suffix" value=".jsp"></property> </bean> <!-- 文件上传配置 --> <bean id="multipartresolver" class="org.springframework.web.multipart.commons.commonsmultipartresolver"> <!-- 默认编码 --> <property name="defaultencoding" value="utf-8"/> <!-- 上传文件大小限制为31m，31*1024*1024 --> <property name="maxuploadsize" value="32505856"/> <!-- 内存中的最大值 --> <property name="maxinmemorysize" value="4096"/> </bean> </beans>
web.xml配置
<!doctype web-app public "-//sun microsystems, inc.//dtd web application 2.3//en" "http://java.sun.com/dtd/web-app_2_3.dtd" > <web-app> <display-name>archetype created web application</display-name> <context-param> <param-name>log4jconfiglocation</param-name> <param-value>classpath:log4j.properties</param-value> </context-param> <context-param> <param-name>contextconfiglocation</param-name> <param-value>classpath:spring/sp-*.xml</param-value> </context-param> <!-- 编码过滤器 --> <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> </filter> <filter-mapping> <filter-name>encodingfilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!--spring溢出监听器 <listener> <listener-class>org.springframework.web.util.introspectorcleanuplistener</listener-class> </listener>--> <!--spring监听器--> <listener> <listener-class>org.springframework.web.context.contextloaderlistener</listener-class> </listener> <!--配置servlet--> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.dispatcherservlet</servlet-class> <init-param> <param-name>contextconfiglocation</param-name> <param-value>classpath:spring/springmvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!--session配置--> <session-config> <session-timeout>15</session-timeout> </session-config> </web-app>
然后基本框架已经配置好了，剩下的就是写java代码了
controller
package com.ssm.controller;
import com.ssm.pojo.user;
import com.ssm.service.userservice;
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 javax.annotation.resource;
/**
* @author: hsj
* @date: 2017/9/15
* @description :
*/
@controller
@requestmapping(value = "/user")
public class usercontroller {
@resource
private userservice userservice;
@requestmapping(value = "user")
@responsebody
public user getuser(int userid){
return userservice.finduserbyid(userid);
}
}
service
package com.ssm.service;
import com.ssm.pojo.user;
import org.springframework.stereotype.service;
/**
* @author: hsj
* @date: 2017/9/15
* @description :
*/
public interface userservice {
user finduserbyid(int userid);
}
serviceimpl
package com.ssm.service.impl;
import com.ssm.dao.userdao;
import com.ssm.pojo.user;
import com.ssm.service.userservice;
import org.springframework.stereotype.service;
import javax.annotation.resource;
/**
* @author: hsj
* @date: 2017/9/15
* @description :
*/
@service
public class userserviceimpl implements userservice {
@resource
private userdao userdao;
public user finduserbyid(int userid) {
return userdao.seleceuserbyid(userid);
}
}
pojo
package com.ssm.pojo;
/**
* @author: hsj
* @date: 2017/9/18
* @description :这是一个user实体类
*/
public class user {
private int id;
private string username;
private string password;
public int getid() {
return id;
}
public void setid(int id) {
this.id = id;
}
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;
}
@override
public string tostring() {
return "user{" +
"id=" + id +
", username='" + username + '\'' +
", password='" + password + '\'' +
'}';
}
}
dao
package com.ssm.dao;
import com.ssm.pojo.user;
import org.springframework.stereotype.repository;
/**
* @author: hsj
* @date: 2017/9/15
* @description :
*/
@repository
public interface userdao {
user seleceuserbyid(int userid);
}
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