第一步:导包
第二步web.xml配置监听器和过滤器
<display-name>news</display-name> <welcome-file-list> <welcome-file>default.jsp</welcome-file> </welcome-file-list> <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:applicationContext.xml</param-value> <!--这里是告诉程序src里有一个应用文件--> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener>
第三步 应用文件applicationContext.xml这里要导入一些外部文件jdbc.properties、persistence.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:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation=" http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.2.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd"> <!-- 原理:自动注入processor解析器,用来解析注解 --> <!-- <context:annotation-config/> --> <!-- 自动扫描包,也会自动注入解释器,所以不需要 context:annotation-config --> <context:component-scan base-package="product" /><!-- 这里扫描的是各个包的前命如product.dao、product.service、product.action、product.eitity--> <!-- 引入外部属性文件 --> <context:property-placeholder location="classpath:jdbc.properties" /><!--告诉有一个外部文件,这个外部文件是给用户使用的,用于配置连接数据库的相关信息--> <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalEntityManagerFactoryBean"> <property name="persistenceUnitName" value="s3s124"></property> </bean> <bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean"> <!-- 注入连接池,包含了数据库用户名,密码等等信息 --> <property name="dataSource" ref="myDataSource" /> <!-- 配置Hibernate的其他的属性 --> <property name="hibernateProperties"> <props> <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop> <prop key="hibernate.show_sql">true</prop> <prop key="hibernate.format_sql">true</prop> <prop key="hibernate.connection.autocommit">false</prop> <!-- 开机自动生成表 --> <prop key="hibernate.hbm2ddl.auto">update</prop> </props> </property> <property name="mappingResources"> <list> </list> </property> <property name="packagesToScan"> <list> <value>product.*</value><!--这个也是用于扫描所有包的--> </list> </property> </bean> <bean id="myDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <property name="driverClass" value="${jdbc.driver}" /> <property name="jdbcUrl" value="${jdbc.url}" /> <property name="user" value="${jdbc.user}" /> <property name="password" value="${jdbc.password}" /> <!-- 每300秒检查所有连接池中的空闲连接 --> <property name="idleConnectionTestPeriod" value="300"></property> <!-- 最大空闲时间,900秒内未使用则连接被丢弃。若为0则永不丢弃 --> <property name="maxIdleTime" value="900"></property> <!-- 最大连接数 --> <property name="maxPoolSize" value="2"></property> </bean> <bean id="transactionManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager"> <property name="sessionFactory" ref="sessionFactory"></property> </bean><!--这个给注入sessionFactory事例--> <tx:annotation-driven transaction-manager="transactionManager"/> </beans>
jdbc.properties文件
jdbc.driver=com.mysql.jdbc.Driver jdbc.url=jdbc:mysql://localhost:3306/news jdbc.user=root jdbc.password=123456 #oracle jdbc_oracle.driver=oracle.jdbc.driver.OracleDriver jdbc_oracle.url=jdbc:oracle:[email protected]:1521:orcl jdbc_oracle.user=news jdbc_oracle.password=123456
persistence.xml
<?xml version="1.0" encoding="UTF-8"?> <persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd"> <!--必须要有name属性,不能为空 --> <persistence-unit name="s3s124" transaction-type="RESOURCE_LOCAL"> <!--可选 --> <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider> <!--可选 --> <class>product.entity.Product</class> <!--厂商的特定属性 --> <properties> <!--配置Hibernate方言 --> <property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5Dialect" /> <!--配置数据库驱动 --> <property name="hibernate.connection.driver_class" value="com.mysql.jdbc.Driver" /> <!--配置数据库用户名 --> <property name="hibernate.connection.username" value="root" /> <!--配置数据库密码 --> <property name="hibernate.connection.password" value="123456" /> <!--配置数据库url --> <property name="hibernate.connection.url" value="jdbc:mysql://localhost:3306/news" /> <property name="hibernate.show_sql" value="true" /> <!--自动输出schema创建DDL语句 --> <property name="hibernate.hbm2ddl.auto" value="update" /> </properties> </persistence-unit> </persistence>
messageResource_en_US.properties英语
#\u4EA7\u54C1\u540D\u5B57\uFF1A proName=Product name #\u4EA7\u54C1\u4EF7\u683C proPrice=Product price #\u4EA7\u54C1\u6570\u91CF proCount=Product count #\u4EA7\u54C1\u63CF\u8FF0 proDesc=Product Description
messageResource_zh_CN.properties中文
#\u4EA7\u54C1\u540D\u5B57\uFF1A proName=\u4EA7\u54C1\u540D\u5B57 #\u4EA7\u54C1\u4EF7\u683C proPrice=\u4EA7\u54C1\u4EF7\u683C #\u4EA7\u54C1\u6570\u91CF proCount=\u4EA7\u54C1\u6570\u91CF #\u4EA7\u54C1\u63CF\u8FF0 proDesc=\u4EA7\u54C1\u63CF\u8FF0
第四步:创建四个包和内部文件
1、product.action包的Product.java
package product.entity; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.GenerationType; import javax.persistence.Id; import javax.persistence.Table; @Entity @Table(name="t_product")//这个是创表的注解,里面是对应的表名 public class Product { private Integer proId; private String proName; private Float proPrice; private Integer proCount; private String proDesc; @Id @GeneratedValue(strategy=GenerationType.IDENTITY)//这个是主键 public Integer getProId() { return proId; } public void setProId(Integer proId) { this.proId = proId; } @Column(name="proName",nullable=false,length=50) public String getProName() { return proName; } public void setProName(String proName) { this.proName = proName; } @Column(name="proPrice",nullable=false) public Float getProPrice() { return proPrice; } public void setProPrice(Float proPrice) { this.proPrice = proPrice; } @Column(name="proCount",nullable=false) public Integer getProCount() { return proCount; } public void setProCount(Integer proCount) { this.proCount = proCount; } @Column(name="proDesc",nullable=false,length=250) public String getProDesc() { return proDesc; } public void setProDesc(String proDesc) { this.proDesc = proDesc; } }
2.product.dao的接口proDao
package product.dao; import java.util.List; import product.entity.Product; public interface ProDao { public List<Product> getAllPro(); public void delPro(Integer proId[]); public String addProduct(Product product); }
proDaoImpl实现类
package product.dao; import java.util.List; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.hibernate.query.Query; //import org.hibernate.query.Query; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Qualifier; import org.springframework.context.annotation.Scope; import org.springframework.stereotype.Repository; import product.entity.Product; @Repository @Scope("prototype") public class ProDaoImpl implements ProDao { @Autowired @Qualifier("sessionFactory") private SessionFactory sessionFactory; //@Autowired //@Qualifier("entityManagerFactory") //private EntityManagerFactory entityManagerFactory;//获取实例有2个方法:1.自己写代码 2.spring注入 @Override public List<Product> getAllPro() { Session session = sessionFactory.getCurrentSession(); Query query = session.createQuery("from Product"); List<Product> list = query.getResultList(); return list; } @Override public void delPro(Integer proId[]) { // TODO Auto-generated method stub Session session = sessionFactory.getCurrentSession(); Query<Product> query = session.createQuery("from Product where proId=:myid"); //System.out.println("proId:"+proId); for(Integer id : proId){ query.setParameter("myid", id); if(query.getResultList().size()>0){ Product pro = query.getResultList().get(0); session.delete(pro); } } } @Override public String addProduct(Product product) { Session session = sessionFactory.getCurrentSession(); session.save(product); return "ok"; } }
3.product.service包的接口proService
package product.service; import java.util.List; import product.entity.Product; public interface ProService { public List<Product> getAllPro(); public void delPro(Integer proId[]); public String addProduct(Product product); }
proServiceImpl实现类
package product.service; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.annotation.Scope; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import product.dao.ProDao; import product.entity.Product; @Transactional @Service @Scope("prototype") public class ProServiceImpl implements ProService { @Autowired private ProDao pd; @Override @Transactional(readOnly=true) public List<Product> getAllPro() { // TODO Auto-generated method stub return pd.getAllPro(); } @Override public void delPro(Integer proId[]) { //System.out.println("proId:"+proId); pd.delPro(proId); } @Override public String addProduct(Product product) { //本例不包含其它的业务逻辑代码,直接调用dao进行保存 return pd.addProduct(product); } }
4.product.action的proAction
package product.action; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.annotation.Scope; import org.springframework.stereotype.Controller; import com.opensymphony.xwork2.ActionContext; import com.opensymphony.xwork2.ActionSupport; import com.opensymphony.xwork2.ModelDriven; import product.entity.Product; import product.service.ProService; @SuppressWarnings("serial") @Controller("proAction")//这里和struts.xml里的<action>的class=“proAciton”对应 @Scope("prototype") public class ProAction extends ActionSupport implements ModelDriven<Product>{ @Autowired private ProService ps; private Integer[] proIds; public void setProIds(Integer[] proIds) { this.proIds = proIds; } //驱动模式 private Product product; public void setProduct(Product product) { this.product = product; } public String showAllPro() { List<Product> proList = ps.getAllPro(); ActionContext.getContext().put("proList", proList); return "data"; } public String delPro() { System.out.println("123456"); ps.delPro(proIds); return "deleteOK"; } // 跳转到添加页面(PS.其实可以不用,直接用JSP代替也行) public String addProduct_view() { // 这里可以插入其它代码,比如:日志跟踪 return "addProduct_view"; } // 跳转到添加页面(PS.其实可以不用,直接用JSP代替也行) public String addProduct_deal() { //1.获取客户端提交上来的数据(采用字段模式,或者驱动模式,struts会自动帮我们赋值) System.out.println("product.getProName():"+product.getProName()); //2.校验条件的数据是否正确(不需要写代码,服务端校验的配置文件) //返回错误 //3.呼叫service,进行页面逻辑代码的处理,然后dao保存到数据库 //返回错误 String resutlDeal = ps.addProduct(product); if ("ok".equals(resutlDeal)){ //4.成功插入到数据库后,跳转到首页的action,重新显示最新的数据 return "addProduct_success"; } else{ //失败,跳转到失败页面去 return "addProduct_failed"; } } @Override public Product getModel() { this.product =new Product(); return product; } }
第五步:struts2.xml
<?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.objectFactory" value="spring" /> <constant name="struts.ui.theme" value="simple"></constant> <constant name="struts.custom.i18n.resources" value="messageResource"></constant> <!-- 第1步:先定义一个包 --> <package name="mypck001" extends="struts-default"> <action name="ProAction_*" class="proAction" method="{1}"><!--这里name=“文件里的_某个” class=“@Controller("proAction")注解里的” method=“里面的方法一般是showall……(){}”-->
<result name="data">/WEB-INF/jsp/index.jsp</result> <result name="addProduct_view">/WEB-INF/jsp/addProduct.jsp</result> <result name="deleteOK" type="redirectAction">ProAction_showAllPro</result> <result name="addProduct_success" type="redirectAction">ProAction_showAllPro</result> </action> </package> </struts>
第六步:创建default.jsp、addProduct.jsp和index.jsp
1.default.jsp这个是完成跳转的该文件在WEB-INF下
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <% response.sendRedirect("ProAction_showAllPro.action"); %>
2.index.jsp该文件在WEB-INF/jsp下
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib uri="/struts-tags" prefix="s" %> <!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>welcome</title> </head> <body> <s:form action="ProAction_delPro"> <table border="1"> <s:iterator value="proList"> <tr> <td><s:checkbox name="proIds" value="false" fieldValue="%{proId}" /></td> <td><s:property value="proName"/></td> <td><s:property value="proPrice"/></td> <td><s:property value="proCount"/></td> <td><s:property value="proDesc"/></td> </tr> </s:iterator> <tr> <td colspan="5"><s:submit label="删除" /></td> </tr> <tr> <td colspan="5"><s:a href="ProAction_addProduct_view.action">添加</s:a></td> </tr> </table> </s:form> </body> </html>
3.addProduct.jsp该文件在WEB-INF/jsp下
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib uri="/struts-tags" prefix="s" %> <!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>Insert title here</title> </head> <body> 添加页面 <s:form action="ProAction_addProduct_deal.action"> <s:text name="proName"></s:text>:<s:textfield id="proName" name="proName"></s:textfield><br> <s:text name="proPrice"></s:text>:<s:textfield id="proPrice" name="proPrice"></s:textfield><br> <s:text name="proCount"></s:text>:<s:textfield id="proCount" name="proCount"></s:textfield><br> <s:text name="proDesc"></s:text>:<s:textfield id="proDesc" name="proDesc"></s:textfield><br> <s:submit value="提交"></s:submit> </s:form> </body>
</html>
第六步:运行
entity注解自动创表,我们使用的是然后我们手动插入几条数据
insert into t_product(proName,proPrice,proCount,proDesc) values(‘aaa‘,123,3,‘xiaolj‘); insert into t_product(proName,proPrice,proCount,proDesc) values(‘aaa‘,123,3,‘xiaolj‘); insert into t_product(proName,proPrice,proCount,proDesc) values(‘aaa‘,123,3,‘xiaolj‘); insert into t_product(proName,proPrice,proCount,proDesc) values(‘aaa‘,123,3,‘xiaolj‘);
运行后如下
点击添加
输入信息
得到
这个就这样完成了
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时间: 2024-11-06 19:53:17