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Myeclipse搭建ssh框架

1.创建项目

打开Myeclipse8.6,新建web工程,命名为ssh,点击完成。

获得目录结构如下:

2为项目添加Struts能力

????a)右键点击项目,选择MyEclipse->Add Struts Capabilities,或者点击菜单栏中MyEclipse->Project Capabilities->Add Struts Capabilities。

b)选择struts2.1版本

c)点击下一步,选择Struts Core(核心库)和Struts 2 Spring(包含集成Spring插件)的两个最基本库,其他根据需要可以添加。

d)点击完成,添加后的项目多了一个Struts.xml(用于配置action),web.xml中添加了核心过滤器的配置。

<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>

?

3.为项目添加Spring能力

a)右键点击项目,选择MyEclipse->Add Spring Capabilities,或者点击菜单栏中MyEclipse->Project Capabilities->Add Spring Capabilities。

b)选择Spring3.0版本,类库选择 Spring 3.0 AOP、Spring 3.0 Core、Spring 3.0 Persistence Core、Spring 3.0 Persistence JDBC、Spring 3.0 Web 5个库,并勾选复制到本地WEB-INF/lib目录。

c)点击下一步,默认配置不需修改。

d)点击完成,查看添加Spring后的项目,增加了applicationContex.xml文件

4.为项目添加Hibernate能力

a)右键点击项目,选择MyEclipse->Add Hibernate Capabilities,或者点击菜单栏中MyEclipse->Project Capabilities->Add Hibernate Capabilities。

b)选择Hibernate3.3版本,如果要使用注记可选中启用annotation,但是会对后续自动生成实体类造成麻烦,不选就是用xml文件形式进行实体类映射,默认勾选Hibernate 3.3 Annotation & Entity Manager、Hibernate 3.3 Core Libraries个类库,复制jar文件到本地WEB-INF/lib文件夹下。

c)点击下一步,选择使用Spring的配置文件applicationContext.xml,这样就不会生成hibernate.cfg.xml,生成与否看个人习惯。

d)点击下一步,选择已经存在的applicationContext.xml文件的位置以及创建sessionFactory的名字

e)下一步,选择已经建立好的数据库连接mydb

f)点击下一步,取消勾选,不生成HibernateSessionFactory类

g)点击完成,查看工程,applicationContext.xml文件中增加了数据库连接的配置,包括datasource和sessionFactory

环境搭建完毕

5.搭建项目结构(分包)

a)创建包结构:model(实体类)、dao(数据库访问类)、service(业务逻辑类)、web(控制类)

数据库名:bai

建立users表 ,数据库脚本

CREATE TABLE users(

id int(11) NOT NULL auto_increment ,

username varchar(50) default NULL,

password varchar(50) default NULL,

PRIMARY KEY (id)

);

?

8.搭建项目结构(model、dao生成

利用Myeclipse生成model和dao(最好自己构建可以减少冗余代码)

转到MyEclipse数据库浏览视图下,双击mydb进行连接

右键点击users表,选择Hibernate反向工程

选择生成目录为app.model,勾选创建POJO即创建表对应的Javabean,同时创建映射文件hbm.xml,勾选更新hibernate配置,勾选创建spring dao。

下一步,选择id生成策略为native,因为users主键自增,或者在下一步中选择也可以

点击完成,回到代码视图查看工程变化,model包下面增加了Users.java、UsersDAO.java、Users.hbm.xml三个文件

将UsersDAO移动到dao包中,并抽出接口IUsersDAO

因为位置移动需要修改applicationContex.xml中的配置

<bean id="UsersDAO" class="app.dao.UsersDAO">

????<property name="sessionFactory">

????????<ref bean="sessionFactory"></ref>

????</property>

</bean>

6.搭建项目结构(service、web编写)

a)编写service层代码,创建IUsersService接口和UsersService实现类,编写CRUD的方法。

IUsersService接口

package app.service;

import java.util.List;

import app.model.Users;

public interface IUsersService {

????public List<Users>findAll();

????public List<Users> findByUsername (String uname);v

????public Users findByUid(Integer uid);

????public void addUsers(Users u) throws Exception ;

????public void updateUsers(Users u) throws Exception ;

????public void delUsers(Integer uid) throws Exception ;

????public Users login(String uname,String upass);

}

UsersService实现类

package app.service;

import java.util.List;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import app.dao.IUsersDAO;

import app.dao.UsersDAO;

import app.model.Users;

?

public class UsersService implements IUsersService {

????private static final Logger log = LoggerFactory.getLogger(UsersService.class);

????private IUsersDAO usersDAO=null;

????public void setUsersDAO(IUsersDAO usersDAO) {

????????this.usersDAO = usersDAO;

???? }

????public void addUsers(Users u) throws Exception {

????????usersDAO.save(u);????????

???? }

????public void delUsers (Integer uid) throws Exception {

????????usersDAO.delete(findByUid(uid));

???? }

????public List<Users> findAll() {

????????return usersDAO.findAll();

???? }

????public List<Users> findByUsername(String uname) {

????????return usersDAO.findByUsername(uname);

???? }

????public Users findByUid(Integer uid) {

????????return usersDAO.findById(uid);

???? }

????public Users login(String uname, String upass) {

????????

???????? List list = usersDAO.findByUsername(uname);

????????if(null==list||list.size()==0)

????????????return null;

???????? Users u=(Users) usersDAO.findByUsername(uname).get(0);

????????if(null==u)

????????????return null;

????if(uname.equals(u.getUsername())&&upass.equals(u.getPassword()))

????????????return u;

????????else

????????????return null;

???? }

????public void updateUsers (Users u) throws Exception {

????????usersDAO.attachDirty(u);

???? }

}

b)编写web层UsersAction代码,用于对用户增删改查进行处理

package app.web;

import java.util.ArrayList;

import java.util.List;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.springframework.context.ApplicationContext;

import app.model.Users;

import app.service.IUsersService;

import com.opensymphony.xwork2.ActionContext;

import com.opensymphony.xwork2.ActionSupport;

public class UsersAction extends ActionSupport{

????private static final Logger log = LoggerFactory.getLogger(UsersAction.class);

???? private Integer uid=new Integer(0);//用于修改删除时传参数

???? private Users u=new Users();//用于增改

???? private List<Users> userList=new ArrayList<Users>();//用于查询

????private IUsersService usersService=null;????

????public String addUser() throws Exception{

????????try {

????????????usersService.addUsers(u);

???????? } catch (Exception e) {

????????????log.error("保存用户错误",e);

????????????return ERROR;

???????? }

????????return SUCCESS;

???? }????

????public String listUser() throws Exception{????????

????????userList=usersService.findAll();

????????return SUCCESS;

???? }

????public String editUser() throws Exception{

????????try {

???????????? u=usersService.findByUid(uid);

???????? } catch (Exception e) {

????????????log.error("修改用户错误",e);

????????????return ERROR;

???????? }

????????return SUCCESS;

???? }

????public String updateUser() throws Exception{

????????try {

????????????usersService.updateUsers(u);

???????? } catch (Exception e) {

????????????log.error("更新用户错误",e);

????????????return ERROR;

???????? }

????????return SUCCESS;

???? }????

????public String delUser() throws Exception{

????????try {

????????????usersService.delUsers(uid);

???????? } catch (Exception e) {

????????????log.error("删除用户错误",e);

????????????return ERROR;

???????? }

????????return SUCCESS;

???? }????

????public String login() throws Exception{

????????try {

???????????? Users loginUser=usersService.login(u.getUsername(), u.getPassword());

????????????if(null!=loginUser){

????????????????ActionContext context=ActionContext.getContext();

????????????????context.getSession().put("LOGINUSER",loginUser);

????????????????return SUCCESS;

???????????? }

???????? } catch (Exception e) {

????????????log.error("登录查询错误",e);

????????????return ERROR;

???????? }

????????return INPUT;

???? }????

????public void setUsersService(IUsersService usersService) {

????????this.usersService = usersService;

???? }????

????public Users getU() {

????????return u;

???? }

????public void setU(Users u) {

????????this.u = u;

???? }????

????public List<Users>getUserList() {

????????return userList;

???? }

????public void setUserList(List<Users>userList) {

????????this.userList = userList;

???? }

????public Integer getUid() {

????????return uid;

???? }

????public void setUid(Integer uid) {

????????this.uid = uid;

???? }

}

7.搭建项目结构(配置文件编写)

a)补充applicationContext.xml配置文件,装配注入关系和事务处理

增加spring配置文件节点的命名空间,否则事务处理节点不识别:

<?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"

???????xsi:schemaLocation="

???????http://www.springframework.org/schema/beans?http://www.springframework.org/schema/beans/spring-beans-3.0.xsd

???????http://www.springframework.org/schema/aop?http://www.springframework.org/schema/aop/spring-aop-3.0.xsd

???????http://www.springframework.org/schema/tx?http://www.springframework.org/schema/tx/spring-tx-3.0.xsd

???????http://www.springframework.org/schema/context?http://www.springframework.org/schema/context/spring-context-3.0.xsd">

增加装配关系

<bean?id="UsersDAO"?class="app.dao.UsersDAO">

????<property?name="sessionFactory">

???????<ref?bean="sessionFactory"></ref>

????</property>

????</bean>

<bean?id="UsersService"?class="app.service.UsersService">

????<property?name="usersDAO"?ref="UsersDAO"/>

</bean>

<bean?id="UsersAction"?class="app.web.UsersAction">

????<property?name="usersService"?ref="UsersService"/>

</bean>

增加事务处理机制

? ??<!--配置事务管理器-->

<bean?id="transactionManager"????????class="org.springframework.orm.hibernate3.HibernateTransactionManager">

????<property?name="sessionFactory">

????????<ref?bean="sessionFactory"/>

????</property>

</bean>

<!--配置事务的传播特性-->

<tx:advice?id="txAdvice"?transaction-manager="transactionManager">

????<tx:attributes>

????????<tx:method?name="save*"?propagation="REQUIRED"/>

????????<tx:method?name="update*"?propagation="REQUIRED"/>

????????<tx:method?name="delete*"?propagation="REQUIRED"/>

????????<tx:method?name="add*"?propagation="REQUIRED"/>

????????<tx:method?name="del*"?propagation="REQUIRED"/>

????????<tx:method?name="*"?read-only="true"/>

????</tx:attributes>

</tx:advice>

<!--?哪些类的哪些方法参与事务?-->

<aop:config>

????????<aop:pointcut?id="allServiceMethod"?expression="execution(*?app.service.*.*(..))"/>

????????<aop:advisor?pointcut-ref="allServiceMethod"?advice-ref="txAdvice"/>

</aop:config>

????</beans>

?

b)配置Struts.xml

<?xml version="1.0" encoding="UTF-8" ?>

<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">

<struts>

<constant name="struts.objectFactory" value="spring"></constant>

<package name="usermanage" extends="struts-default">

<action name="addUser" class="UsersAction" method="addUser">

<result name="success" type="redirect">listUser.action</result>

<result name="error">/error.jsp</result>

</action>

<action name="editUser" class="UsersAction" method="editUser">

<result name="success">/user/user_edit.jsp</result>

</action>

<action name="updateUser" class="UsersAction" method="updateUser">

<result name="success" type="redirect">listUser.action</result>

<result name="error">/error.jsp</result>

</action>

<action name="delUser" class="UsersAction" method="delUser">

<result name="success" type="redirect">listUser.action</result>

<result name="error">/error.jsp</result>

</action>

<action name="listUser" class="UsersAction" method="listUser">

<result name="success">/user/user_list.jsp</result>

</action>

<action name="login" class="UsersAction" method="login">

<result name="success">/index.jsp</result>

<result name="input">/login.jsp</result>

<result name="error">/error.jsp</result>

</action>

</package>

</struts>

c)配置web.xml,设定applicationContex.xml的加载位置,如果放在WEB-INF下则不需要设定,配置监听

?<context-param>

?<param-name>contextConfigLocation</param-name>

????<param-value>

????????classpath:applicationContext.xml

????</param-value>

????</context-param>

????<listener>

????<listener-class>

????????org.springframework.web.context.ContextLoaderListener

????</listener-class>

????</listener>

8.搭建项目结构(页面代码)

a)页面关键代码

User_add.jsp

<body>

<s:form action="addUser">

<table border="1">

<tr><s:textfield label="用户名" name="u.uname"></s:textfield></tr>

<tr><s:textfield label="密码" name="u.upass"></s:textfield></tr>

<tr><td colspan="2"><s:submit value="保存"></s:submit></td></tr>

</table>

</s:form>

</body>

User_edit.jsp

<body>

<s:form action="updateUser">

????<table border="1">

????????<s:hidden name="u.uid"></s:hidden>

????????<tr><s:textfield label="用户名" name="u.uname"></s:textfield></tr>

????????<tr><s:textfield label="密码" name="u.upass"></s:textfield></tr>

????????<tr><td colspan="2"><s:submit value="保存"></s:submit></td></tr>

????</table>

</s:form>

?

</body>

User_list.jsp

<body>

<table border="1">

<tr><td>编号</td><td>用户名</td><td>密码</td><td>操作</td></tr>

<s:iterator value="userList">

<tr>

<td>${uid}</td>

<td>${uname }</td>

<td>${upass }</td>

<td><a href=<s:url action="editUser"><s:param name="uid" value="uid" /></s:url>>修改</a>&nbsp;

<a onclick="return confirm(‘确定要删除吗?‘);" href=<s:url action="delUser"><s:param name="uid" value="uid" /></s:url>>删除</a></td>

</tr>

</s:iterator>

</table>

</body>

Login.jsp

<s:form action="login">

???? <table border="1">

???? ???? <tr><s:textfield label="用户名" name="u.uname"></s:textfield></tr>

???? ???? <tr><s:textfield label="密码" name="u.upass"></s:textfield></tr>

???? ???? <tr><td colspan="2"><s:submit value="登录"></s:submit></td></tr>

???? </table>

</s:form>

9.测试运行

http://localhost:8080/ssh/login.jsp

Myeclipse搭建ssh框架