Simple SSH saving based on Annotations

Simple SSH saving based on Annotations

Requirement: Build an SSH framework environment, use annotations for related injection (entity annotation, AOP annotation, DI injection), and save user information

Effect:

1. import dependency packages

Ii. project directory structure

Iii. web. xml configuration

<? Xml version = "1.0" encoding = "UTF-8"?>
<Web-app xmlns = "http://xmlns.jcp.org/xml/ns/javaee"
Xmlns: xsi = "http://www.w3.org/2001/XMLSchema-instance"
Xsi: schemaLocation = "http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
Version = "3.1">

<! -- Lazy loading filter to solve the problem of lazy loading -->
<Filter>
<Filter-name> openSession </filter-name>
<Filter-class> org. springframework. orm. hibernate5.support. OpenSessionInViewFilter </filter-class>
</Filter>
<Filter-mapping>
<Filter-name> openSession </filter-name>
<Url-pattern> *. action </url-pattern>
</Filter-mapping>

<! -- Struts2 front-end Controller -->
<Filter>
<Filter-name> struts </filter-name>
<Filter-class> org. apache. struts2.dispatcher. ng. filter. StrutsPrepareAndExecuteFilter </filter-class>
</Filter>
<Filter-mapping>
<Filter-name> struts </filter-name>
<Url-pattern>/* </url-pattern>
</Filter-mapping>

<! -- Spring creates a listener -->
<Listener>
<Listener-class> org. springframework. web. context. ContextLoaderListener </listener-class>
</Listener>

<Context-param>
<Param-name> contextConfigLocation </param-name>
<Param-value> classpath: applicationContext. xml </param-value>
</Context-param>

</Web-app>

Iv. applicationContext. xml configuration

<? 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: tx = "http://www.springframework.org/schema/tx"
Xmlns: contex = "http://www.springframework.org/schema/context"
Xsi: schemaLocation = "http://www.springframework.org/schema/beans
Http://www.springframework.org/schema/beans/spring-beans.xsd
Http://www.springframework.org/schema/tx
Http://www.springframework.org/schema/tx/spring-tx.xsd
Http://www.springframework.org/schema/context
Http://www.springframework.org/schema/context/spring-context.xsd>

<! -- Enable annotation scanning -->
<Contex: component-scan base-package = "com. pri"/>

<! -- The following is the hibernate configuration -->
<Bean id = "dataSource" class = "com. mchange. v2.c3p0. ComboPooledDataSource">
<Property name = "driverClass" value = "com. mysql. jdbc. Driver"/>
<Property name = "jdbcUrl" value = "jdbc: mysql: // ssh_demo1? UseSSL = false "/>
<Property name = "user" value = "root"/>
<Property name = "password" value = ""/>
</Bean>

<Bean id = "sessionFactory" class = "org. springframework. orm. hibernate5.LocalSessionFactoryBean">
<! -- 1. Core configuration -->
<Property name = "dataSource" ref = "dataSource"/>

<! -- 2. optional configuration -->
<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. hbm2ddl. auto"> update </prop>
</Props>
</Property>
<! -- 3. Scan the ing file -->
<Property name = "packagesToScan" value = "com. pri. domain"> </property>
</Bean>

<! -- Enable transaction control -->
<Bean id = "transactionManager" class = "org. springframework. orm. hibernate5.HibernateTransactionManager">
<Property name = "sessionFactory" ref = "sessionFactory"> </property>
</Bean>
<Tx: annotation-driven transaction-manager = "transactionManager"/>
</Beans>

5. log4j. properties configuration

# How to Set logging to the console
Log4j. appender. std = org. apache. log4j. leleappender
# Output in black and err in red
Log4j. appender. std. Target = System. err
Log4j. appender. std. layout = org. apache. log4j. PatternLayout
Log4j. appender. std. layout. ConversionPattern = % d {yyyy-MM-dd HH: mm: ss} % 5 p % c {1}: % L-% m % n
# How to Set logging to a file
Log4j. appender. file = org. apache. log4j. FileAppender
# Log file path file name
Log4j. appender. file. File = mylog. log
# Log output format
Log4j. appender. file. layout = org. apache. log4j. PatternLayout
Log4j. appender. file. layout. ConversionPattern = % d {ABSOLUTE} % 5 p % c {1}: % L-% m % n
# Log output level and configuration record solution. Level: error> warn> info> debug> trace
Log4j. rootLogger = info, std, file

6. Page code

Index. jsp

<% @ Page contentType = "text/html; charset = UTF-8" language = "java" %>
<Html>
<Head>
<Title> $ Title $ </title>
</Head>
<Body>
<H3> Add a customer <Form action = "$ {pageContext. request. contextPath}/customerAction_save" method = "post">
Name: <input type = "text" name = "name"/> <br/>
Age: <input type = "text" name = "age"/> <br/>
<Input type = "submit" value = "submit"/> <br/>
</Form>
</Body>
</Html>

Success. jsp

<% @ Page contentType = "text/html; charset = UTF-8" language = "java" %>
<Html>
<Head>
<Title> homepage </title>
</Head>
<Body>
<H1> saved successfully! </H1>
</Body>
</Html>

VII. entity-Layer Code

Package com. pri. domain;

Import javax. persistence .*;

@ Entity
@ Table (name = "customer ")
Public class Customer {
@ Id
@ Column (name = "userId ")
@ GeneratedValue (strategy = GenerationType. IDENTITY)
Private Integer userId;

@ Column (name = "name ")
Private String name;
@ Column (name = "age ")
Private Integer age;

Public Integer getUserId () {return userId ;}

Public void setUserId (Integer userId) {this. userId = userId ;}

Public String getName () {return name ;}

Public void setName (String name) {this. name = name ;}

Public Integer getAge () {return age ;}

Public void setAge (Integer age) {this. age = age ;}
}

8. action-Layer Code

Package com. pri. action;

Import com. pri. domain. Customer;
Import com. pri. service. CustomerService;
Import com. opensymphony. xwork2.ActionSupport;
Import com. opensymphony. xwork2.ModelDriven;
Import org. apache. struts2.convention. annotation. Action;
Import org. apache. struts2.convention. annotation. Namespace;
Import org. apache. struts2.convention. annotation. ParentPackage;
Import org. apache. struts2.convention. annotation. Result;
Import org. springframework. context. annotation. Scope;
Import org. springframework. stereotype. Controller;
Import javax. annotation. Resource;

@ Controller ("customerAction ")
@ ParentPackage (value = "struts-default ")
@ Scope ("prototype ")
@ Namespace (value = "/")
Public class CustomerAction extends ActionSupport implements ModelDriven <Customer> {

Private Customer customer;

@ Resource (name = "customerService ")
Private CustomerService customerService;

@ Override
Public Customer getModel (){
If (customer = null ){
Customer = new Customer ();
}
Return customer;
}

@ Action (value = "customerAction_save ",
Results = {@ Result (name = SUCCESS, type = "redirect", location = "/success. jsp ")})
Public String save (){
CustomerService. save (customer );
Return SUCCESS;
}
}

9. service-Layer Code

Package com. pri. service;

Import com. pri. domain. Customer;

Public interface CustomerService {
Void save (Customer user );
}
// ================================================ =
Package com. pri. service. impl;

Import com. pri. domain. Customer;
Import com. pri. dao. CustomerDao;
Import com. pri. service. CustomerService;
Import org. springframework. stereotype. Service;
Import org. springframework. transaction. annotation. Transactional;

Import javax. annotation. Resource;

@ Service ("customerService ")
@ Transactional
Public class CustomerServiceImpl implements CustomerService {

@ Resource (name = "customerDao ")
Private CustomerDao customerDao;

@ Override
Public void save (Customer customer ){
CustomerDao. save (customer );
}
}

10. dao Layer Code

Package com. pri. dao;

Import com. pri. domain. Customer;

Public interface CustomerDao {
Void save (Customer customer );
}

// ================================================ ======================================
Package com. pri. dao. impl;

Import org. hibernate. SessionFactory;
Import org. springframework. orm. hibernate5.support. HibernateDaoSupport;
Import org. springframework. stereotype. Component;
Import javax. annotation. Resource;

@ Component ("myHibernateDaoSupport ")
Public class MyHibernateDaoSupport extends HibernateDaoSupport {

@ Resource (name = "sessionFactory ")
Public void setSuperSessionFactory (SessionFactory sessionFactory ){
Super. setSessionFactory (sessionFactory );
}
}
// ================================================ ==============
Package com. pri. dao. impl;

Import com. pri. dao. CustomerDao;
Import com. pri. domain. Customer;
Import org. springframework. stereotype. Repository;

@ Repository ("customerDao ")
Public class CustomerDaoImpl extends MyHibernateDaoSupport implements CustomerDao {

@ Override
Public void save (Customer customer ){
GetHibernateTemplate (). save (customer );
}
}

11. Spring Beans Dependencies

 

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