spring -structs 2整合spring

梦里梦外; 2022-04-16 06:20 177阅读 0赞

spring -structs 2整合spring  
1）拷jar包  
2）配置Structs2核心控制器和配置文件  
先写web.xml，再写structs2.xml  
3)配置web应用在启动时自动创建Spring容器  
用ContextLoaderListener，实现了ContextInitialized(ServletContextEvent sce),在该方法  
new xmlwebapplicationContext(“beans.xml”)  
spring容许通过contextConfigLocation的参数来指定配置文件名  
4)为第三步提供配置文件  
5）添加structs2-spring整合的插件包

——以上为安装步骤，只需要一次即可———  
开发过程：  
1）Action不再主动获取service组件  
2）Action为service 提供的setter方法务必于service的配置id一致（byname）

整合hibernate  
spring整合hibernate的优势：  
1.通用的资源管理，直接管理hibernate底层的dataSource,SessionFactory  
2.有效的Session管理  
3.声明式事务管理  
4.异常包装spring把所有的checked异常都包装成runtime异常  
安装步骤：  
1）配置DataSource和SessionFactory  
2）为第一步提供hibernate.cfg.xml

门面模式：  
如果客户端组件要完成某个功能时，需要依次调用N个组件的方法，此时就应该考虑为N个组件封装成一个门面，当客户端组件只需要与门面交互。  
hibernate查询：  
1）打开session  
2）打开事务  
3）传入HQL创建Query  
4）为HQL语句参数  
5）执行查询，返回结果  
6）提交事务  
7）关闭session等资源  
最关心：传入hql语句，返回结果

Ajax：(不建议说这个)  
1）创建XHR对象  
2）打开远程的链接  
3）设置回调函数  
4 ) 发送请求  
最关心：ajax.get(url.data.cb)  
ajax.post(url.data.cb)  
service封装dao  
aciton直接调用dao，完成一次业务逻辑，action需要依次调用N个dao的方法，所以我们会用service来封装n 个dao组件，此时serivce就相当于多个dao的门面

封装一个BaseDaoHibernate4工具类，相当于HQL查询的门面  
appCtx.xml

daoCtx.xml

<?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
           xmlns:p="http://www.springframework.org/schema/p"
           xmlns:c="http://www.springframework.org/schema/c"
           xmlns:util="http://www.springframework.org/schema/util"
            xmlns:context="http://www.springframework.org/schema/context"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://www.springframework.org/schema/beans
            http://www.springframework.org/schema/beans/spring-beans.xsd
            http://www.springframework.org/schema/util
            http://www.springframework.org/schema/util/spring-util.xsd
            http://www.springframework.org/schema/context
            http://www.springframework.org/schema/beans/spring-context.xsd">
    <context:property-placeholder location="classpath:db.properties"/>
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDateSource"
    p:dieverClass="${driver}"
    p:jdbcUrl="${url}"
    p:user="${user}"
    p:password="${password}"
    p:maxPoolSize="${maxSize}"
    p:minPoolSize="${minSize}"
    p:initialPoolSize="${initSize}"/>
    
    <bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean"
     p:configLoaction="classpath:hibernate.cfg.xml"  
     p:dateSource-ref="dataSource" />
     <bean id="bookDao"class=""
     p:sessionFactory-ref="sessionFactory">
     
     
     </bean>
    </beans>

structs.xml

<?xml version="1.0" encoding="UTF-8" ?>
    
    <!DOCTYPE struts PUBLIC
        "-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"
        "http://struts.apache.org/dtds/struts-2.5.dtd">
    
    <struts>
    
            <constant name="struts.enable.DynamicMethodInvocation"
                      value="false" />
            <constant name="struts.devMode"
                  value="true" />
      <package name="fkjvava" namespace="/" extends="struts-default">
    <action name="*">
    <result>/WEB-INF/content/{0}.jsp</result>
    
    </action>
    <action name="addBook" class='org.fkjava.s2sh.action.BookAction' method="add">
    <result name="success">/WEB-INF/content/succcess.jsp</result>
    <result name="error">/WEB-INF/content/error.jsp</result>
    </action>
     </package>
    </struts>

hibernate.cfg.xml

<?xml version="1.0" encoding="UTF-8" ?>
    
    <!DOCTYPE hibernate-configuration PUBLIC
    	"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
    	"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
    
    <hibernate-configuration>
    	<session-factory >
    	    <property name="hibernate.dialect">org.hibernate.dialect.MYSQL5InnoDBDialect</property>
    		<property name="hibernate.show_sql">true</property>
    			<property name="hibernate.format_sql">true</property>
    				<property name="hibernate.hbm2ddl.auto">update</property>
    		<mapping resource="org.fkjava.s2sh.domain.Book"/>
    		
    	</session-factory>
    </hibernate-configuration>

book.java

package org.fkjava.s2sh.domain;
    
    import javax.persistence.*;
    
    
    @Entity
    @Table(name="book_tb")
    public class Book {
    @Id
    @Column(name="book_id")
    @GeneratedValue(strategy=GenerationType.IDENTITY)
    private Integer id;
    @Column(name="book_name")
    private String name;
    private double price;
    private String author;
    
    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 double getPrice() {
    	return price;
    }
    public void setPrice(double price) {
    	this.price = price;
    }
    public String getAuthor() {
    	return author;
    }
    public void setAuthor(String author) {
    	this.author = author;
    }
    
    }

BookAction.java

package org.fkjava.s2sh.action;
    
    
    import org.fkjava.s2sh.domain.Book;
    import org.fkjava.s2sh.service.BookService;
    
    import com.opensymphony.xwork2.ActionSupport;
    
    public class BookAction extends ActionSupport {
    /**
    	 * 
    	 */
    private static final long serialVersionUID = 1L;
    private Book book;
    private BookService bookService;
    
    public Book getBook() {
    	return book;
    }
    
    public void setBook(Book book) {
    	this.book = book;
    }
    
    public void setBookService(BookService bookService) {
    	this.bookService = bookService;
    }
    
    public String add() {
    	
    	Integer id =bookService.addBook(book);
    	if(id>0)
    		return "SUCCESS";
    	else
    		return "ERROR";
    }
    }

BookService.java

package org.fkjava.s2sh.service;
    
    import org.fkjava.s2sh.domain.Book;
    
    public interface BookService {
    	Integer addBook(Book book);
    }

BookServiceImp.java

package org.fkjava.s2sh.service;
    
    import org.fkjava.s2sh.domain.Book;
    
    public class BookServiceImpl implements BookService {
    
    	@Override
    	public Integer addBook(Book book) {
    		System.out.println("模拟添加图书"+book.getName());
    		return 19;
    	}
    
    }

BookFrom.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
     pageEncoding="UTF-8"%>
    <%@ taglib prefix="s"  uri="/struts-tags"%>
    
    <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
    <html>
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>添加图书</title>
    </head>
    <body>
    <form　method="POST"  action="addBook">
    <div class="form-group">
    <label for="bookName">图书名</label>
    <input type="text" class="form-control" id="bookName" >
    
    </div>
    
    </form>
    </body>
    </html>

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" version="3.1">
      <filter>
        <filter-name>structs2</filter-name>
        <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
      </filter>
      <filter-mapping>
        <filter-name>structs2</filter-name>
        <url-pattern>/*</url-pattern>
      </filter-mapping>
      <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
      </listener>
      <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/appCtx.xml</param-value>
      </context-param>
    </web-app>