Eclipse搭建SSH框架(Struts2+Spring+Hibernate)
见识少的我经过一天多的研究才知道,在MyEclipse中搭好的框架的配置文件和jar包是通用的。接下来——亮剑!
工具:Eclipse+Tomcat+Mysql
一、先在Eclipse中配置好Tomcat服务器,新建Web工程,建立目录包结构。这些不详细说了。
二、添加ssh所需要的jar包(有点多)。
三、修改web.xml文件和添加struts.xml,application.xml配置文件。
1.web.xml()
1 <?xml version="1.0" encoding="UTF-8"?> 2 <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_3_0.xsd" id="WebApp_ID" version="3.0"> 3 <display-name>ssh</display-name> 4 5 <welcome-file-list> 6 <welcome-file>index.jsp</welcome-file> 7 </welcome-file-list> 8 9 10 <!-- spring启动文件路径 --> 11 <context-param> 12 <param-name>contextConfigLocation</param-name> 13 <param-value>classpath:applicationContext.xml</param-value> 14 </context-param> 15 16 <!-- spring监听器的作用:提供实例 --> 17 <!-- spring的监听器配置开始 --> 18 <listener> 19 <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> 20 </listener> 21 22 <filter> 23 <filter-name>struts2</filter-name> 24 <filter-class> 25 org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter 26 </filter-class> 27 </filter> 28 <!-- spring的监听器配置结束 --> 29 <!-- END SNIPPET: filter --> 30 <filter-mapping> 31 <filter-name>struts2</filter-name> 32 <url-pattern>*.action</url-pattern> 33 </filter-mapping> 34 35 </web-app>
2.struts.xml
1 <?xml version="1.0" encoding="UTF-8"?> 2 <!DOCTYPE struts PUBLIC 3 "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" 4 "http://struts.apache.org/dtds/struts-2.1.dtd"><!-- 注意版本 --> 5 <!-- 这里的包名和命名空间可随便起,但要有意义,访问顺序是先找到包名-命名空间名找到动作类 --> 6 7 <struts> 8 <package name="user" namespace="/user" extends="struts-default"> 9 <action name="UserAction" class="action.UserAction" > 10 <result name="success">/index2.jsp</result> 11 <result name="error">/error.jsp</result> 12 </action> 13 </package> 14 </struts>
3.application.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:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation=" http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd" default-autowire="byName"> <context:annotation-config /> <!-- spring 扫描路径,注意当前工程只需要扫描dao和service,srpingmvc或者struts2注解才有变化 --> <context:component-scan base-package="dao,service" /> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"> <property name="driverClassName" value="com.mysql.jdbc.Driver"> </property> <property name="url" value="jdbc:mysql://127.0.0.1:3306/young"> </property> <property name="username" value="root"></property> <property name="password" value="root"></property> </bean> <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> <property name="dataSource"> <ref bean="dataSource" /> </property> <property name="hibernateProperties"> <props> <prop key="hibernate.dialect"> org.hibernate.dialect.MySQLDialect </prop> <prop key="hibernate.show_sql"> true </prop> </props> </property> <property name="mappingDirectoryLocations"> <list> <value>classpath:entity/</value> </list> </property> </bean> <!-- 配置声明式事务管理(采用注解的方式) --> <bean id="txManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager"> <property name="sessionFactory" ref="sessionFactory"></property> </bean> <!-- 开启注解事务 --> <tx:annotation-driven transaction-manager="txManager"/> </beans>
四、编写各个包下的代码,和修改struts.xml以及application.xml文件,一般是改路径就可以。这里的数据库映射文件和实体类是可以生成的,百度搜索“Eclpse中生成ssh框架中的实体类”,要安装一个Hibernate的插件。以及配置数据库连接。
common包下代码:
package common; import java.util.List; public interface BaseDao<T> { public List<T> findAll(); public int insert(T t); public int update (T t,int id); public int delete(int id); public T findById(int id); }
package common; import java.util.List; public interface BaseService <T>{ public List<T> findAll(); public boolean insert(T t); public boolean update (T t,int id); public boolean delete(int id); public T findById(int id); }
dao包下代码:
package dao; import common.BaseDao; import entity.User; public interface UserDao extends BaseDao<User>{ }
package dao.impl; import java.util.List; import javax.websocket.Session; import org.hibernate.Query; import org.springframework.orm.hibernate3.support.HibernateDaoSupport; import org.springframework.stereotype.Repository; import dao.UserDao; import entity.User; @Repository public class UserDaoimpl extends HibernateDaoSupport implements UserDao { @Override public List<User> findAll() { // TODO Auto-generated method stub String sql="select * from user"; Query query=getSession().createSQLQuery(sql).addEntity(User.class); List<User> list=query.list(); return list ; } @Override public int insert(User t) { // TODO Auto-generated method stub return 0; } @Override public int update(User t, int id) { // TODO Auto-generated method stub return 0; } @Override public int delete(int id) { // TODO Auto-generated method stub return 0; } @Override public User findById(int id) { // TODO Auto-generated method stub return null; } }
service包下代码
package service; import common.BaseDao; import entity.User; public interface UserService extends BaseDao<User>{ }
package service.impl; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import dao.UserDao; import entity.User; import service.UserService; @Transactional @Service public class UserServiceimpl implements UserService{ @Autowired private UserDao userdao; @Override public List<User> findAll() { // TODO Auto-generated method stub return userdao.findAll(); } @Override public int insert(User t) { // TODO Auto-generated method stub return 0; } @Override public int update(User t, int id) { // TODO Auto-generated method stub return 0; } @Override public int delete(int id) { // TODO Auto-generated method stub return 0; } @Override public User findById(int id) { // TODO Auto-generated method stub return null; } }
entity包代码:
package entity; // Generated 2018-3-29 10:41:32 by Hibernate Tools 3.4.0.CR1 /** * User generated by hbm2java */ public class User implements java.io.Serializable { private Integer userid; private String userName; private String pwd; public User() { } public User(String userName, String pwd) { this.userName = userName; this.pwd = pwd; } public Integer getUserid() { return this.userid; } public void setUserid(Integer userid) { this.userid = userid; } public String getUserName() { return this.userName; } public void setUserName(String userName) { this.userName = userName; } public String getPwd() { return this.pwd; } public void setPwd(String pwd) { this.pwd = pwd; } }
<?xml version="1.0"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> <!-- Generated 2018-3-29 10:41:32 by Hibernate Tools 3.4.0.CR1 --> <hibernate-mapping> <class name="entity.User" table="user" catalog="young"> <id name="userid" type="java.lang.Integer"> <column name="userid" /> <generator class="identity" /> </id> <property name="userName" type="string"> <column name="userName" length="10" /> </property> <property name="pwd" type="string"> <column name="pwd" length="10" /> </property> </class> </hibernate-mapping>
action包代码:
package action; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import com.opensymphony.xwork2.ActionSupport; import entity.User; import service.UserService; @Controller public class UserAction extends ActionSupport{ @Autowired private UserService userService;//自动注入 public String toLogin(){ List<User>list=userService.findAll(); for (User user : list) { System.out.println(user.getUserName()); } return "success"; } }
最后运行大功告成,结果图如下: