(excerpt notes) Java Learning Notes SSH integrated construction project

1: Of course, the Guide jar bag;

STRUTS2:

Spring

Hibernate:

As for what these jar packs are, I guess I don't have to explain, everyone knows, SSH2 basic jar package;

There are other jar packages: Struts2-spring-plugin-2.1.8.1.jar (jar package used by struts2-spring integration), C3p0-0.9.2-pre1.jar (using linked pool link database)

2: Add Struts.xml file

<?xml version= "1.0" encoding= "UTF-8"? ><! DOCTYPE struts public        "-//apache software foundation//dtd struts Configuration 2.0//en"        "/http Struts.apache.org/dtds/struts-2.0.dtd "><struts>    <!--Overwrite Convention-    <package Name= "Users" namespace= "/lishun" extends= "Struts-default" >    <!--Here the action is called Spring Management, So the class property value here is the ID name of the injected action, followed by the action class that mentions--        <action name= "users" class= "Usersaction" method= " Execute ">            <result name=" Success ">/index.jsp</result>        </action>    </package ></struts>

Configure Web. xml

<?xml version= "1.0" encoding= "UTF-8"? ><web-app version= "3.0" xmlns= "Http://java.sun.com/xml/ns/javaee" Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance" xsi:schemalocation= "Http://java.sun.com/xml/ns/javaee http ://java.sun.com/xml/ns/javaee/web-app_3_0.xsd "> <display-name></display-name> < Welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <!-- The core listener of the struts-<filter> <filter-name>action2</filter-name> <filter-class>or G.apache.struts2.dispatcher.ng.filter.strutsprepareandexecutefilter</filter-class> </filter> <    Filter-mapping> <filter-name>action2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!--to integrate struts with spring;; Be sure not to forget the Guide Struts2-spring-plugin-2.1.8.1.jar pack--<listener> &LT;LISTENER-CLASS&GT;ORG.SPRINGFramework.web.context.contextloaderlistener</listener-class> </listener> <context-param> &lt ;p aram-name>contextconfiglocation</param-name> <param-value>classpath:application.xml</ Param-value> </context-param></web-app>

Configure Hibernate.cfg.xml

"Http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd" >

Configure Application.xml

<beans xmlns= "Http://www.springframework.org/schema/beans" xmlns:xsi= "http://www.w3.org/2001/ Xmlschema-instance "xmlns:aop=" HTTP://WWW.SPRINGFRAMEWORK.ORG/SCHEMA/AOP "xmlns:tx="/HTTP/ Www.springframework.org/schema/tx "xmlns:jdbc=" Http://www.springframework.org/schema/jdbc "xmlns:context=" http:/ /www.springframework.org/schema/context "xmlns:util=" Http://www.springframework.org/schema/util "xsi: schemalocation= "Http://www.springframework.org/schema/context http://www.springframework.org/schema/context/ Spring-context-3.0.xsd Http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/ Spring-beans-3.0.xsd Http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/ Spring-jdbc-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/AOP http://www.springframework.org/schema/aop/ Spring-aop-3.0.xsd Http://www.springframEwork.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd "> <!-- Automatically scans all the beans under the Com.lishun package, and then injects these beans through annotations--<context:component-scan base-package= "Com.lishun" ></ Context:component-scan> <!--load Properties file to read the database link string--<context:property-placeholder location= "Claspath :D atabaseconnection.properties "/> <bean name=" sessionfactory "class=" Org.springframework.orm.hibernate3.LocalSessionFactoryBean "> <!--Hibernate to spring Management--<property Nam                        E= "Configlocation" value= "Classpath:hibernate.cfg.xml" ></property> <property name= "DataSource" > <bean class= "Com.mchange.v2.c3p0.ComboPooledDataSource" > <!--front four items are four strings of database links,                Here is the database link string read through the properties file--<property name= "Jdbcurl" value= "${jdbcurl}" ></property> <property name= "user" value= "${user}" ></property> <propeRty name= "Password" value= "${password}" ></property> <property name= "Driverclass" value= "${drive Rclass} ></property> <!--other Configurations-<!--get three connections when initializing, values should be in Minpoolsize and Maxpools Between the ize. Default:3--<property name= "Initialpoolsize" value= "3" ></property> <!-- The minimum number of connections that are kept in the connection pool. Default:3---<property name= "Minpoolsize" value= "3" ></property> <!--connection pool The maximum number of connections that are retained. Default:15--<property name= "Maxpoolsize" value= "5" ></property> <!--when connected When the connection in the pool runs out, c3p0 the number of connections that are fetched at one time. Default:3--<property name= "Acquireincrement" value= "3" ></property> <!- -Controls the number of preparedstatements loaded within the data source. If both maxstatements and maxstatementsperconnection are 0, the cache is closed. default:0--<property name= "maxstatements" value= "8" ></property> <!--ma XstatemeNtsperconnection defines the maximum number of cache statements that a single connection in a connection pool has.                default:0--<property name= "Maxstatementsperconnection" value= "5" ></property> <!--maximum idle time, unused in 1800 seconds, the connection is discarded. If 0, it will never be discarded. default:0--<property name= "MaxIdleTime" value= "1800" ></property> </bean&gt        ; </property> </bean> <!--Configure Sessionfactory transactions based on annotations--<bean name= "Txmanager" class= "Org.s Pringframework.orm.hibernate3.HibernateTransactionManager "> <property name=" sessionfactory "ref=" Sessionfactory "></property> </bean> <tx:annotation-driven transaction-manager=" Txmanager "/>& Lt;/beans>

Databaseconnection.properties Properties File

3: Test

This is my directory structure, is a layer of calls to a layer

Controller action:

@Controller ("usersaction")//Controller annotation, and the definition of change Bean ID is usersaction, @Scope ("prototype")// The declared bean is scoped to prototype: Each fetch of the bean from the container is a new object. public class Usersaction extends Actionsupport {        @Resource    private iuserservice servise;    Public String Execute () {        Servise.sava ();        Return "Success";    }}

Business Layer Seivice:

@Service//service Layer Annotation public class Userservicebean implements Iuserservice {    //Add value to attribute    @Resource public    Iuserdao Userdao;    @Override    @Transactional//This method automatically opens the transaction and commits the transaction, and rolls back the transaction public    void Sava () {        Userdao.sava () when there is an exception;}    }

Data Manipulation Layer DAO:

public class Userdaobean implements Iuserdao {    //inject Sessionfactory value from configuration file    @Resource    Private Sessionfactory seesionfactory;    @Override public    void Sava () {        Session session = Seesionfactory.getcurrentsession ();        SYSTEM.OUT.PRINTLN (session);        Users u=new users ();        U.setuname ("Wang Nima");        Session.save (u);    }}

Most have a javabean entity, this entity is simple only the ID and name two fields, the test did not get a lot of fields up

public class Users {    private Integer uid;    Private String uname;    Public Integer Getuid () {        return uid;    }    public void SetUid (Integer uid) {        this.uid = uid;    }    Public String Getuname () {        return uname;    }    public void Setuname (String uname) {        this.uname = uname;    }    @Override public    String toString () {        return "Users [uid=" + uid + ", uname=" + uname + "]";    }}

corresponding mapping file

<?xml version= "1.0"? ><! DOCTYPE hibernate-mapping Public "-//hibernate/hibernate mapping DTD 3.0//en" "http://www.hibernate.org/dtd/ Hibernate-mapping-3.0.dtd ">
Article excerpt from: http://www.cnblogs.com/lishun1005/p/4412252.html
(excerpt notes) Java Learning Notes SSH integrated construction project