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一.新建maven项目 选择 maven-archetype-webApp
二.目录结构规范
三.导入JAR包.pom.xml
<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.hyycinfo.testssm</groupId> <artifactId>ssm1</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>ssm1 Maven Webapp</name> <url>http://maven.apache.org</url> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>4.1.4.RELEASE</version> </dependency> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> <version>1.8.4</version> </dependency> <!-- spring-jdbc: 支持事务处理.. --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>4.1.4.RELEASE</version> </dependency> <!-- 数据联接池 : 其它的还有 c3p0 --> <dependency> <groupId>commons-dbcp</groupId> <artifactId>commons-dbcp</artifactId> <version>20030825.184428</version> </dependency> <dependency> <groupId>commons-pool</groupId> <artifactId>commons-pool</artifactId> <version>20030825.183949</version> </dependency> <dependency> <groupId>commons-collections</groupId> <artifactId>commons-collections</artifactId> <version>20040616</version> </dependency> <!-- 数据库驱动.. --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.34</version> </dependency> <!-- 因为使用了 javax.annotation包中的注解。 --> <dependency> <groupId>javax.annotation</groupId> <artifactId>javax.annotation</artifactId> <version>1.1.0.v201105051105</version> </dependency> <!-- mybatis --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.3.0</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.2.2</version> </dependency> <!-- Struts2核心 --> <dependency> <groupId>org.apache.struts</groupId> <artifactId>struts2-core</artifactId> <version>2.3.20</version> </dependency> <dependency> <groupId>org.apache.struts</groupId> <artifactId>struts2-json-plugin</artifactId> <version>2.3.20</version> </dependency> <!-- 发布的时候不需要 --> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>3.0-alpha-1</version> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>jsp-api</artifactId> <version>2.2.1-b03</version> <scope>provided</scope> </dependency> <!-- spring整合struts2的包 --> <dependency> <groupId>org.apache.struts</groupId> <artifactId>struts2-spring-plugin</artifactId> <version>2.3.20</version> </dependency> <!-- 提供一个a s r --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>4.1.4.RELEASE</version> </dependency> </dependencies> <build> <finalName>ssm1</finalName> </build> </project>
web.xml
<?xml version="1.0" encoding="UTF-8"?> <web-app id="WebApp_9" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> <!-- 配置一个全局变量,指定spring配置文件的位置 --> <filter> <filter-name>struts2</filter-name> <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath*:beans*.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <welcome-file-list> <welcome-file>add.jsp</welcome-file> </welcome-file-list> </web-app>
加上启动spring的监听器,这样配置在xml文件中的bean才会初始化
然后开始读取beans.xml配置信息,如下:
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" 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/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd "> <!-- 开启注解 --> <context:annotation-config /> <!-- 先配置扫描包,为了你的系统能够识别相应的注解。该包下的子类也都可以被扫描,另外可以配置不包含的类,详细请另外查看。。 如果想使用@Autowired</span></strong>注解,需要在Spring容器中声明AutowiredAnnotationBean 同理,注解越多,需要在spring容器其中声明的...Bean越多,配置了这个以后,就能让spring自动识别--> <context:component-scan base-package="com.hyycinfo" /> <!--使用注解支持事务,即可以用@Transactional 该方法开启事务 --> <tx:annotation-driven transaction-manager="txManager"/> <p><!-- 使用spring自带的属性文件读取类完成读取db.properties配置文件的操作 --></p><p><bean id="pphc"class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"></p><p><property name="locations" value="classpath:db.properties" /></bean></p><p><!-- 配置dbcp数据源... 数据库联接池 ( jndi-> tomcat的数据库联接池 ) / c3p0 --></p><p><bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"destroy-method="close"></p><p> <property name="driverClassName" value="${jdbc.driverClassName}" /></p><p> <property name="url" value="${jdbc.url}" /><property name="username" value="${jdbc.username}" /></p><p> <property name="password" value="${jdbc.password}" /></p><p> <property name="maxActive" value="${jdbc.maxActive}" /></p><p> <property name="minIdle" value="${jdbc.minIdle}" /></p><p> <property name="maxIdle" value="${jdbc.maxIdle}" /></p><p></bean></p> <pre name="code" class="java"><!--下面使针对mybatis的整合配置 1.sqlsessionfactory mybatis核心 spring将会在应用启动时为你创 建SqlSessionFactory对象,然后将它以SqlSessionFactory为名来存储 SqlSessionFactory有一个单独的必须属性,就是JDBC的DataSource。这可以是任意的DataSource。其配置应该和其它spring数据库连接是一样的。 一个通用的属性是configLocation,它是用来指定MyBatis的xml配置文件路径的。 --> <bean id="SqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource"></property> <!-- setmapperLocation --> <property name="mapperLocations" value="classpath*:com/hyycinfo/ssm1/dao/*.xml"></property> </bean> <!-- 配置扫描器,用于扫描所有的mapper文件 如果你使 用了一个 以上的 DataSource ,那 么自动 装配可 能会失效 。 这种 情况下 ,你可 以使用 SqlSessionFactoryBeanName 属性来设置正确的 bean 名 称来使用 这是对spring注解机制的讲解,特别有用 http://blog.163.com/qqabc20082006@126/blog/static/2292852520091128103316534/ --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <!-- 配置要扫描的映射文件对应的接口的文件 --> <property name="basePackage" value="com.hyycinfo.ssm1.dao"></property> <property name="SqlSessionFactoryBeanName" value="SqlSessionFactory"></property> </bean> <!-- 1.事物管理器 DataSourceTransactionManager: 此事务管理器是针对传统的JDBC进行事务管理,在spring中是对JdbcTemplate进行事务管理 要 开 启 Spring 的 事 务 处 理 , 在 Spring 的 XML 配 置 文 件 中 简 单 创 建 一 个 DataSourceTransactionManager 对象: --> <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"/> </bean> <!-- 配置增强 --> <tx:advice id="txAdvice" transaction-manager="txManager"> <!-- 事物语法,切入点,这里加入的是切入点表达式--> <tx:attributes> <!-- all methods starting with 'get' are read-only --> <tx:method name="get*" read-only="true"/> <tx:method name="find*" read-only="true"/> <tx:method name="retrieve*" read-only="true"/> <tx:method name="load*" read-only="true"/> <tx:method name="datagrid*" read-only="true"/> <!-- 其它的方法加上事物--> <tx:method name="add*" propagation="REQUIRED"/> <tx:method name="del*" propagation="REQUIRED"/> <tx:method name="update*" propagation="REQUIRED"/> <tx:method name="modify*" propagation="REQUIRED"/> <tx:method name="save*" propagation="REQUIRED"/> <tx:method name="remove*" propagation="REQUIRED"/> <tx:method name="repair*" propagation="REQUIRED"/> <tx:method name="insert*" propagation="REQUIRED"/> <tx:method name="*"/> </tx:attributes> </tx:advice> <!-- 配置切面 --> <!-- ensure that the above transactional advice runs for any execution of an operation defined by the FooService interface --> <aop:config> <aop:pointcut id="service" expression="execution(* com.hyycinfo.ssm1.impl.*.*(..))"/> <aop:advisor advice-ref="txAdvice" pointcut-ref="service"/> </aop:config> </beans>
这样配置完毕以后,你可以根据配置文件来知道你接下来要写的类,从上往下:
(1)你需要写一个db.properties数据库链接配置文件
jdbc.driverClassName=com.mysql.jdbc.Driver jdbc.url=jdbc:mysql://localhost:3306/ssm1?useUnicode=true&characterEncoding=UTF-8 jdbc.username=root jdbc.password=a jdbc.maxActive=150 jdbc.minIdle=5 jdbc.maxIdle=20
(2)要扫描的映射文件对应的接口的文件,以及对应的xml映射文件
package com.hyycinfo.ssm1.dao; import java.util.List; import com.hyycinfo.ssm1.bean.Student; public interface StudentDao { public int delete (String id); public int add(Student student); public Student findById(String id); public void update(Student student); }
<?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.hyycinfo.ssm1.dao.StudentDao"> <resultMap type="com.hyycinfo.ssm1.bean.Student" id="BaseResultMap"> <id column="id" property="id" jdbcType="CHAR"/> <result column="sname" property="sname" jdbcType="VARCHAR"/> <result column="age" property="age" /> </resultMap> <delete id="delete" parameterType="java.lang.String"> delete from student where id=#{id} </delete> <insert id="add" parameterType="com.hyycinfo.ssm1.bean.Student" > insert into student(id,sname,age) values(#{id},#{sname},#{age}) </insert> <update id="update" parameterType="com.hyycinfo.ssm1.bean.Student"> update student set sname=#{sname},age=#{age} where id=#{id} </update> <select id="findById" resultMap="BaseResultMap" parameterType="java.lang.String"> select * from student where id=#{id} </select> </mapper>
( 3 ) 业务层
package com.hyycinfo.ssm1.biz; import com.hyycinfo.ssm1.bean.Student; import com.hyycinfo.ssm1.dao.StudentDao; public interface StudentBiz { public int delete(String id); public int add(Student student); public Student findById(String id); public void update(Student student); public void setStudentDao(StudentDao studentDao); }
package com.hyycinfo.ssm1.impl; import javax.annotation.Resource; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import com.hyycinfo.ssm1.bean.Student; import com.hyycinfo.ssm1.biz.StudentBiz; import com.hyycinfo.ssm1.dao.StudentDao; @Service("studentBiz") public class StudentBizImpl implements StudentBiz{ @Autowired public StudentDao studentDao; public int delete(String id){ return studentDao.delete(id); } public int add(Student student){ return studentDao.add(student); } public Student findById(String id){ return studentDao.findById(id); } public void update(Student student){ studentDao.update(student); } public void setStudentDao(StudentDao studentDao){ this.studentDao=studentDao; } }
package com.hyycinfo.ssm1.bean; public class Student { private String id; private String sname; private Integer age; public String getId() { return id; } public void setId(String id) { this.id = id; } public String getSname() { return sname; } public void setSname(String sname) { this.sname = sname; } public Integer getAge() { return age; } public void setAge(Integer age) { this.age = age; } @Override public String toString() { return "Student [id=" + id + ", sname=" + sname + ", age=" + age + "]"; } public Student(String id, String sname, Integer age) { super(); this.id = id; this.sname = sname; this.age = age; } public Student() { super(); } }
这里的beans-web配置的是所有的action,当然你也可以全部配置在beans.xml里面,这样程序会显的臃肿,不清晰
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" 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/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd "> <!-- 为了让控制器Action访问Spring的业务逻辑组件: scope="prototype"来保证每一个请求有一个单独的Action来处理, 避免struts中Action的线程安全问题。 这里的ref="studentBiz"由注解注入 --> <bean id="studentAction" class="com.hyycinfo.ssm1.web.actions.StudentAction" scope="prototype"> <property name="studentBiz" ref="studentBiz"></property> </bean> </beans>
StrutsPrepareAndExecuteFilter类中 private static final String DEFAULT_CONFIGURATION_PATHS = "struts-default.xml,struts-plugin.xml,struts.xml";它会在自动搜索本地的struts.xml文件
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd"> <struts> <constant name="struts.enable.DynamicMethodInvocation" value="false" /> <constant name="struts.devMode" value="true" /> <constant name="struts.objectFactory" value="spring" /> <package name="default" namespace="/" extends="struts-default"> <!-- 注意:因为这是,由spring来生成action对象 所以类名是写由spring创建的bean的id,而不是写全路径 --> <action name="student_*" class="studentAction" method="{1}"> <result name="add_success">/add_success.jsp</result> </action> </package> <!-- Add packages here --> </struts>
struts.enable.DynamicMethodInvocation ,-动态方法调用,带!感叹号那个。。我也不太熟,但一般禁用 <pre name="code" class="java">devMode true 开发模式下使用,这样可以打印出更详细的错误信息。 <pre name="code" class="java">objectFactory spring 该属性指定Struts 2中的Action由Spring容器创建。这样整个流程就跑完了
为了方便大家,给大家提供了免费代码资源下载http://download.csdn.net/detail/ac_great/9000945
最后提醒大家,以我身边的例子来看,有很多人都整合失败的原因都跟自己的环境有关,比如jdk,tomcat,maven,eclipse平台,还有jar包的原因
这就是最麻烦的地方,所以在做之前一定要确保好自己的环境....
补充一个mysql脚本
create database ssm1; use ssm1; drop table if exists student; create table student( id char(50) primary key, sname varchar(100) not null, age int )engine=innodb default charset=utf8; show create table student; insert into student values('1','张三',22);
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Spring+Struts2+mybatis 整合(详细解释+完整流程)
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原文地址:http://blog.csdn.net/ac_great/article/details/47614273